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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
Posted to rec.crafts.metalworking
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OT computer question...
I tend to run a bit behind the times with computers, only finally
switching from my W2k computer to an XP box shortly before my move. I elected to bring the computer in my checked baggage, as I have all my photography software and thousands of photos on it. But pulled the HDD's and packed in my carry on. Also had my laptop and three small external drives in carry on. Get down here, put the drives back in, boot up, and.... Unknown Device on both disks. Whoa. At first I thought maybe the carry on scanner biffed them. Google showed the X-ray scanners are not a problem, but, the full body scanners can emit a strong magnetic field that can affect a drive, and at SFO, the scanner is pretty close to the X-ray line. But the laptop and external drives were fine. I'd brought my HDD dock to salvage some data off my wife's old computer, but grabbed the wrong power supply. Finally go a replacement, and both drives are recognized just find when hooked to the laptop, can see all my folders. Figured if I could see them, the data must be OK and didn't go further. So looking deeper into it (and yes, I DID switch the PS to 220 before plugging it in!), I checked power to the drives. The 12vdc is running 14v, but the 5vdc line is running a whopping 31 volts! I cycled the input voltage selector several times, but made no difference. So, new mobo and PS on the way thanks to eBay. I'd buy something much newer, except all my install disks are buried deep in storage back in the States. So, just curious, has anyone ever seen a PS do this before? Any thoughts on what happened to it to run the 5v side so high? Thanks, Jon |
#2
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OT computer question...
On 5/15/2014 2:04 PM, Jon Elson wrote:
Jon Anderson wrote: I checked power to the drives. The 12vdc is running 14v, but the 5vdc line is running a whopping 31 volts! I cycled the input voltage selector several times, but made no difference. So, new mobo and PS on the way thanks to eBay. Impossible! If there was 31 V on the 5V supply to the drives, you'd have flames pouring out of them! I have seen a DVM show 120 V DC on a 5V supply where the equipment was working correctly. It may be possible to turn off the auto-range and get a more reliable reading. Or, try a different meter. Jon No load? Maybe? |
#3
Posted to rec.crafts.metalworking
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OT computer question...
Jon Anderson wrote:
I checked power to the drives. The 12vdc is running 14v, but the 5vdc line is running a whopping 31 volts! I cycled the input voltage selector several times, but made no difference. So, new mobo and PS on the way thanks to eBay. Impossible! If there was 31 V on the 5V supply to the drives, you'd have flames pouring out of them! I have seen a DVM show 120 V DC on a 5V supply where the equipment was working correctly. It may be possible to turn off the auto-range and get a more reliable reading. Or, try a different meter. Jon |
#4
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OT computer question...
Accidentally replied direct to Jon Elson, for anyone with possible
input, this was my response to him: ------------------ I'd thought maybe there was voltage, but not enough current to damage anything. And I'd checked power with all but one drive plugged in, so the PS was loaded. Meter is a Fluke 8020 B, not some cheap auto-range. I'm no electronics guru, but reasonably confident I know how to measure DC voltages. But to prove I did it right, I went and checked the output of a wall wart. Dang, a 13 volt supply was measuring over 200 volts! Then tried a 9 volt battery, and it's showing 57 volts. I was severely weight restricted in my move, just my checked luggage cost $500 for extra bags and overweight. So I shipped some basic tools via USPS. Looks like my Fluke didn't survive the trip despite being well padded. I'll go buy an inexpensive meter and see what it says about the power supply... Is a Fluke 8020 worth having fixed? If so, anyone know of an outfit in AU that can (hopefully) fix it? --------------------- Jon replied suggesting possible condensation in the meter. I removed the top and placed it in front of the heater. Tested the 9v battery after about 20 minutes, it read 50+ volts, but then, began dropping, finally settling at around 20 volts. After an hour, it read 20-some volts and settled down to 9.9. So condensation appears to be at least part of the problem. Our house was built in probably the 30's, and who knows when the additional rooms were added, but by US standards if insulation, the additions are barely better than a bare stud wall in a garage. And it's friggin cold here right now! I'd brought the meter in from the cold room into the main living room, which was warm. Soon as the meter starts reading a battery like I'd expect, I'll test the PS again. I'd bought the 8020B maybe 10 years ago, well used. Thinking I ought to maybe get a newer one. On eBay, I found many Fluke meters, looking at a model 115, 233/A, and an 8060A. Want to stay right around $100, which means used most likely. Any input on these models for someone that does fairly basic electronics/electrical work? Or suggestions on other models? Thanks, Jon |
#5
Posted to rec.crafts.metalworking
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OT computer question...
On Fri, 16 May 2014 09:38:33 +1000, Jon Anderson
wrote: Accidentally replied direct to Jon Elson, for anyone with possible input, this was my response to him: ------------------ I'd thought maybe there was voltage, but not enough current to damage anything. And I'd checked power with all but one drive plugged in, so the PS was loaded. Meter is a Fluke 8020 B, not some cheap auto-range. I'm no electronics guru, but reasonably confident I know how to measure DC voltages. But to prove I did it right, I went and checked the output of a wall wart. Dang, a 13 volt supply was measuring over 200 volts! Then tried a 9 volt battery, and it's showing 57 volts. I was severely weight restricted in my move, just my checked luggage cost $500 for extra bags and overweight. So I shipped some basic tools via USPS. Looks like my Fluke didn't survive the trip despite being well padded. I'll go buy an inexpensive meter and see what it says about the power supply... Is a Fluke 8020 worth having fixed? If so, anyone know of an outfit in AU that can (hopefully) fix it? --------------------- Jon replied suggesting possible condensation in the meter. I removed the top and placed it in front of the heater. Tested the 9v battery after about 20 minutes, it read 50+ volts, but then, began dropping, finally settling at around 20 volts. After an hour, it read 20-some volts and settled down to 9.9. So condensation appears to be at least part of the problem. Our house was built in probably the 30's, and who knows when the additional rooms were added, but by US standards if insulation, the additions are barely better than a bare stud wall in a garage. And it's friggin cold here right now! I'd brought the meter in from the cold room into the main living room, which was warm. Soon as the meter starts reading a battery like I'd expect, I'll test the PS again. I'd bought the 8020B maybe 10 years ago, well used. Thinking I ought to maybe get a newer one. On eBay, I found many Fluke meters, looking at a model 115, 233/A, and an 8060A. Want to stay right around $100, which means used most likely. Any input on these models for someone that does fairly basic electronics/electrical work? Or suggestions on other models? Thanks, Jon Depends on if you want Tru-RMS or just regular plain jane readings The 77s are good, as are the 23s etc. Surprisingly the T5-1000 is a very handy meter as well. I keep several meters in the service truck, including the T5-1000 which has been a good utility meter. I probably have 7-9 Fluke meters. Most portable..a couple bench types such as the 8600 etc etc. And a couple HP bench meters. That being said..there are a large number of other meters that work just as well as a Fluke, and are imported. And much...much cheaper. Shrug. You are close to where they are made in the grand scheme of things. http://www.ebay.com.au/itm/Mini-LCD-...-/330874520833 http://www.ebay.com.au/itm/MS2008A-m...-/170622238358 http://www.ebay.com.au/itm/Auto-Powe...-/151133596763 http://www.ebay.com.au/itm/Fluke-75-...-/301179186316 http://www.ebay.com.au/itm/fluke-mul...-/191170689908 As you can see..Fluke sells "used" for a fair amount more money than they do in the States. Ive got B&K and HP digital bench meters and a bunch of others analog ones (Simpson 260/270s)..some as old as the 1930s. Come to think of it..I probably have 2-3 of the 8020/8021 series. Ill have to hunt around for them and see if any of them still work. Want one..I can drop on in the mail for you after I check it out completely and make sure its working properly. Chuckle..you might be able to find some Royal Enfield/Indian Chief/ Super Meteor motorcycle parts for me. Hell..Ive even got a Simpson 467-E that works fine on the bench or in the field. In a hard case. http://www.ebay.com.au/itm/Simpson-4...-/251520395456 Geeze!! They that good a meter or is that guy simply proud as hell of it? http://www.ebay.com.au/itm/SIMPSON-M...-/290600339981 Need a bench meter? Got an HP on the shelf..3465A works like a champ..but is AC only. Gunner, making a note to do a meter inventory this weekend along with a scope inventory..and wishing you had said something about needing extra test equip before leaving the country. -- " I was once told by a “gun safety” advocate back in the Nineties that he favored total civilian firearms confiscation. Only the military and police should have weapons he averred and what did I think about that? I began to give him a reasoned answer and he cut me off with an abrupt, “Give me the short answer.” I thought for a moment and said, “If you try to take our firearms we will kill you.”" |
#6
Posted to rec.crafts.metalworking
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OT computer question...
"Jon Anderson" wrote in message
... I'd bought the 8020B maybe 10 years ago, well used. Thinking I ought to maybe get a newer one. On eBay, I found many Fluke meters, looking at a model 115, 233/A, and an 8060A. Want to stay right around $100, which means used most likely. Any input on these models for someone that does fairly basic electronics/electrical work? Or suggestions on other models? Thanks, Jon Although I have better 4-1/2 digit meters I usually grab a Harbor Freight cheapie or this: http://www.amazon.com/TekPower-TP400.../dp/B000OPDFLM My dozen or so HF meters were all within 5 counts (50mV) at 12.00V before I calibrated them closer with the internal pot. Their input resistance is 1 Megohm, not the usual 10, so they load sensitive circuits slightly and my variable-voltage insulation tester excessively. The leads are fairly frail but repairable when they break off inside the probe. I bought some TP4000ZCs to use for multichannel energy datalogging. They are decent auto-ranging general-purpose DVMs and they take AA batteries so leaving them on for a few days while recording costs only a visit to the charger, then I know they are fully charged and won't quit during the next session. I haven't carefully checked the calibration yet because they seemed close enough in casual use. The thermocouple reading can be a few degrees off and seems to vary with the meter's internal temperature, but a quick dip in slush to check zero and a fudge factor in the spreadsheet takes care of the offset. The program that displays and logs the readings includes a better K-type correction curve than the meter itself. jsw |
#7
Posted to rec.crafts.metalworking
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OT computer question...
On 2014-05-15, Jon Anderson wrote:
Accidentally replied direct to Jon Elson, for anyone with possible input, this was my response to him: ------------------ I'd thought maybe there was voltage, but not enough current to damage anything. And I'd checked power with all but one drive plugged in, so the PS was loaded. Meter is a Fluke 8020 B, not some cheap auto-range. I'm no electronics guru, but reasonably confident I know how to measure DC voltages. But to prove I did it right, I went and checked the output of a wall wart. Dang, a 13 volt supply was measuring over 200 volts! Then tried a 9 volt battery, and it's showing 57 volts. Ouch! Certainly a problem with the meter. Out of curiosity -- how old in the 9V battery which runs it? If it gets too low, readings can be quite unpredictable. And has there been any leakage in the battery compartment? If so, has it reached the circuit boards? If so there, pull the battery, open it up, wash with clean water several cycles (use an old toothbrush to clean the areas where the leakage hit, then let it dry while opened up. (This is more than just *visibly* dry. Your heat source mentioned somewhere in this thread is a good idaa during the drying.) (Actually, down later in this very article, but now snipped. :-) IIRC, your model of Fluke has a piano-key switch running along one edge. The slightly high on the 12V and the very high on the 5V suggests that the leakage affected the circuitry related to the 0-10V range, and that you used a different range for the 12V measurement. In particular, look around the 10V switch to see whether there is any contamination in there. I was severely weight restricted in my move, just my checked luggage cost $500 for extra bags and overweight. So I shipped some basic tools via USPS. Looks like my Fluke didn't survive the trip despite being well padded. I'll go buy an inexpensive meter and see what it says about the power supply... I'll bet that the power supply is fine. Your original post suggested that there was more than one drive involved. Could it be that they are connected to different interface cables than they were originally, so it is trying to boot off a secondary drive? (Did you *mark* which drive was which when disassembling and packing?) Anyway -- try swapping the drives. Is a Fluke 8020 worth having fixed? If so, anyone know of an outfit in AU that can (hopefully) fix it? It probably can be fixed by the wash and dry cycle described above. If it were a problem with a bad LCD readout, you might have difficulty finding one to match to replace it, but this is conductance paths, not the LCD. Just for the fun of it -- with the probes disconnected, does it show a voltage measurement anyway? And as another possibility -- are you by any chance fairly close to a radio or TV transmitter? High levels of RFI can confuse these meters. [ ... ] I'd bought the 8020B maybe 10 years ago, well used. Thinking I ought to maybe get a newer one. On eBay, I found many Fluke meters, looking at a model 115, 233/A, and an 8060A. Want to stay right around $100, which means used most likely. Any input on these models for someone that does fairly basic electronics/electrical work? Or suggestions on other models? My own favorite meter (now obsolete) is the Fluke model 27. A bit bigger than the Fluke 77 which I first had, but it has a lower pitched beep which I can hear for continuity tests. The 77 I had to ask my wife to repeat the beeps when she heard them. Too high pitched for my ears. There is another (and less common) brother to it, the model 37 has the same features, but is more set up as a benchtop meter, and has a storage compartment for the test leads and accessories behind the main body. (The 27 is very well sealed for use in rain and the like, the 37 is more ventilated. :-) I have both. The 27 was bought new, the 37 from eBay. Both are autoranging, and I have no problems from that, FWIW. Among other things, both have a LCD bar graph to take the place of a meter needle when tuning for a null or a peak. Pure digital readout is a real pain for that. Enjoy, DoN. -- Remove oil spill source from e-mail Email: | (KV4PH) Voice (all times): (703) 938-4564 (too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html --- Black Holes are where God is dividing by zero --- |
#8
Posted to rec.crafts.metalworking
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OT computer question...
On 5/16/2014 11:24 AM, DoN. Nichols wrote:
Out of curiosity -- how old in the 9V battery which runs it? If it gets too low, readings can be quite unpredictable. Brand new, outside of my pocket and DSLR cameras, I removed all batteries before shipping. It's brand new. And has there been any leakage in the battery compartment? External dirt from typical handling, but the internals look nice and clean, no corrosion visible anywhere. IIRC, your model of Fluke has a piano-key switch running along one edge. The slightly high on the 12V and the very high on the 5V suggests that the leakage affected the circuitry related to the 0-10V range, and that you used a different range for the 12V measurement. In particular, look around the 10V switch to see whether there is any contamination in there. Used same range for all measurements. The 20v range switch is now flaky however, and won't always stay in. This was never a problem before the move, and I don't know if it affects anything. I'll bet that the power supply is fine. The meter now reads nearly correct on a 9v battery now, but of course is still highly suspect. Checking the PS again, I'm getting around 13vdc on the 5v line and 6vdc on the 12v line. Bought a replacement and paying the shipping, might as well use it! Your original post suggested that there was more than one drive involved. Could it be that they are connected to different interface cables than they were originally, so it is trying to boot off a secondary drive? (Did you *mark* which drive was which when disassembling and packing?) Only one ribbon cable for the HDDs and I marked which connector went to which drive. Just for the fun of it -- with the probes disconnected, does it show a voltage measurement anyway? Powers up and reads 0.00 And as another possibility -- are you by any chance fairly close to a radio or TV transmitter? High levels of RFI can confuse these meters. Nah, nearest transmitter is probably a 40 minute drive. I'm really in the sticks, this is sheep, wheat, and canola country. My own favorite meter (now obsolete) is the Fluke model 27. A bit bigger than the Fluke 77 which I first had, but it has a lower pitched beep which I can hear for continuity tests. The lower pitch would benefit me too, I'll add that one to my search list. I'm sure some of the import stuff is good, but since I'm not up snuff enough to diagnose issues, I prefer to pay for known quality meters. Your in depth and thoughtful replies are always welcome and appreciated! Jon |
#9
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OT computer question...
Hokay, big plate of egg on my face. I looked up the voltages on an IDE
drive's Molex connector. But between my laptop in the back room and the computer out in the front room, I mixed up the 5 and 12 volt colors. My Fluke still has issues, so I ran down to the auto parts and bought a cheapo digital. Good enough for my needs. The PS is just fine. The HDD are both fine, can read data via external dock. So appears somehow, the motherboard has shat itself.... Jon |
#10
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OT computer question...
On 2014-05-16, Jon Anderson wrote:
On 5/16/2014 11:24 AM, DoN. Nichols wrote: Out of curiosity -- how old in the 9V battery which runs it? If it gets too low, readings can be quite unpredictable. Brand new, outside of my pocket and DSLR cameras, I removed all batteries before shipping. It's brand new. O.K. One thing eliminated. :-) And has there been any leakage in the battery compartment? External dirt from typical handling, but the internals look nice and clean, no corrosion visible anywhere. Great! IIRC, your model of Fluke has a piano-key switch running along one edge. The slightly high on the 12V and the very high on the 5V suggests that the leakage affected the circuitry related to the 0-10V range, and that you used a different range for the 12V measurement. In particular, look around the 10V switch to see whether there is any contamination in there. Used same range for all measurements. The 20v range switch is now flaky however, and won't always stay in. This was never a problem before the move, and I don't know if it affects anything. O.K. Do you have access to a good contact cleaner spray? Hitting the contacts with that and exercising the switch a few cycles might clean up some oxidation. What used to be the best around was a product called Cramolin. It was replaced by something from the some company called De-Oxit, which did not smell nearly as nasty, and I still have some of that for my use. Not sure whether it is still made, however. Both of them came in a red and a blue version, but in reality, this was just a ploy to make sure that people used them properly. You were supposed to spritz with one, exercise the contacts to break oxide films (both switches and bus connectors on some computers), and then spritz with the other. This ensures that a fresh clean film of the cleaner remains on the contacts to protect them. I'll bet that the power supply is fine. The meter now reads nearly correct on a 9v battery now, but of course is still highly suspect. Checking the PS again, I'm getting around 13vdc on the 5v line and 6vdc on the 12v line. Bought a replacement and paying the shipping, might as well use it! O.K. Good Luck, there. Your original post suggested that there was more than one drive involved. Could it be that they are connected to different interface cables than they were originally, so it is trying to boot off a secondary drive? (Did you *mark* which drive was which when disassembling and packing?) Only one ribbon cable for the HDDs and I marked which connector went to which drive. O.K. Another eliminated. Perhaps someone at customs fired it up and perhaps attempting to find drives played with the BIOS settings? Or, I guess, an electrolytic capacitor or two bulged from the low air pressure in flight and dried out? Look at the on-end cans for bulges in the flat tops. (Usually these will have a groove making a weak point for it to split if the cap over-pressures from failure. Just for the fun of it -- with the probes disconnected, does it show a voltage measurement anyway? Powers up and reads 0.00 O.K. So not a leak from other areas of the board donating current to the reading. And as another possibility -- are you by any chance fairly close to a radio or TV transmitter? High levels of RFI can confuse these meters. Nah, nearest transmitter is probably a 40 minute drive. I'm really in the sticks, this is sheep, wheat, and canola country. O.K. Yet another thing eliminated. My own favorite meter (now obsolete) is the Fluke model 27. A bit bigger than the Fluke 77 which I first had, but it has a lower pitched beep which I can hear for continuity tests. The lower pitch would benefit me too, I'll add that one to my search list. I'm sure some of the import stuff is good, but since I'm not up snuff enough to diagnose issues, I prefer to pay for known quality meters. O.K. Fluke is a good name -- but not cheap. :-) Your in depth and thoughtful replies are always welcome and appreciated! Thank you. I try, but so far I don't seem to have hit it for your current (or voltage?) problem. Good Luck, DoN. -- Remove oil spill source from e-mail Email: | (KV4PH) Voice (all times): (703) 938-4564 (too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html --- Black Holes are where God is dividing by zero --- |
#11
Posted to rec.crafts.metalworking
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OT computer question...
"DoN. Nichols" wrote in message
... IIRC, your model of Fluke has a piano-key switch running along one edge. The slightly high on the 12V and the very high on the 5V suggests that the leakage affected the circuitry related to the 0-10V range, and that you used a different range for the 12V measurement. In particular, look around the 10V switch to see whether there is any contamination in there. I recently bought a Fluke 8060A for $10.99 that shows symptoms of intermittent connections in the row of switches. Sometimes it's very accurate, other times the reading is ridiculous. I bought some Deoxit to try when the meter reaches the top of the fixit job stack. Firefox for XP and lightning protection for my TV antenna have precedence. -jsw |
#12
Posted to rec.crafts.metalworking
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OT computer question...
"Jon Anderson" wrote in message
... The lower pitch would benefit me too, I'll add that one to my search list. I'm sure some of the import stuff is good, but since I'm not up snuff enough to diagnose issues, I prefer to pay for known quality meters. Jon I don't rely on the accuracy of the import meters I mentioned, I use them for general portable troubleshooting and check them against lab-quality Fluke and Keithley meters that I don't risk away from the workbench, or for charging batteries or measuring power supply current. The under-$5 HF meter is no great loss if dropped or fried. Except for the test probes the two I use most have been reliable and accurate enough for troubleshooting. My ingrained habit is to stop and think twice before turning a meter to the current or resistance scales. It's easy to forget the meter setting when absorbed by the problem I'm trying to solve, twice as easy if someone is watching. jsw |
#13
Posted to rec.crafts.metalworking
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OT computer question...
Jon Anderson wrote: Hokay, big plate of egg on my face. I looked up the voltages on an IDE drive's Molex connector. But between my laptop in the back room and the computer out in the front room, I mixed up the 5 and 12 volt colors. My Fluke still has issues, so I ran down to the auto parts and bought a cheapo digital. Good enough for my needs. The PS is just fine. The HDD are both fine, can read data via external dock. So appears somehow, the motherboard has shat itself.... Jon Jon, do you have a spare data cable for the drives? I've seen more than one that was bad. -- Anyone wanting to run for any political office in the US should have to have a DD214, and a honorable discharge. --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com |
#14
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OT computer question...
On 5/17/2014 2:01 AM, Michael A. Terrell wrote:
Jon, do you have a spare data cable for the drives? I've seen more than one that was bad. Hmm, never seen one go bad myself. Too bad I tossed probably a dozen of them before I moved... I don't think that's it, as BIOS is also reporting only one of the two DVD drives and calls it a CD-ROM. But I'll see if I can get one in town, certainly worth a shot. Thanks, Jon |
#15
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OT computer question...
On 5/16/2014 10:07 PM, Jim Wilkins wrote:
I recently bought a Fluke 8060A for $10.99 that shows symptoms of intermittent connections in the row of switches. Sometimes it's very accurate, other times the reading is ridiculous. I bought some Deoxit to try when the meter reaches the top of the fixit job stack. I'm thinking that this might be part of the problem with my Fluke, have to see if I can find some Deoxit or similar and give it a shot. I bought as cheap a meter as I could find locally, more than adequate to test the PS, which turns out to be fine. Sounds like I need to find some contact cleaner. Jon |
#16
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OT computer question...
On Sat, 17 May 2014 07:57:07 +1000, Jon Anderson
wrote: On 5/17/2014 2:01 AM, Michael A. Terrell wrote: Jon, do you have a spare data cable for the drives? I've seen more than one that was bad. Hmm, never seen one go bad myself. Too bad I tossed probably a dozen of them before I moved... I don't think that's it, as BIOS is also reporting only one of the two DVD drives and calls it a CD-ROM. But I'll see if I can get one in town, certainly worth a shot. Thanks, Jon Swap em and make sure that if they are IDE, one is set for master and one for slave. And in older MOBOs...try to put a optical drive as a slave to C: (E: and the second one as a Slave(F) to D (other hard drive if you have 2 hard drives. If one of the config jumpers has fallen out.,.it can make that drive invisible or in stone conflict. Which most folks dont know or remember. Which is one of the reasons (among seveal) they developed SATA... My regular desk top puter has 4 hard drives, 2 DVD Read/write and 3 addtional USB drives..but I have a card that allows me to add additonal IDE drives (up to 4 on the card..a Promise Tech card)..so I couild run a total of 6 HDs and 2 opticals, plus the USB media. I have a pretty decent power supply to run the drives...shrug. Gunner -- " I was once told by a “gun safety” advocate back in the Nineties that he favored total civilian firearms confiscation. Only the military and police should have weapons he averred and what did I think about that? I began to give him a reasoned answer and he cut me off with an abrupt, “Give me the short answer.” I thought for a moment and said, “If you try to take our firearms we will kill you.”" |
#17
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OT computer question...
On Fri, 16 May 2014 22:58:33 -0700, Gunner Asch
wrote: On Sat, 17 May 2014 07:57:07 +1000, Jon Anderson wrote: On 5/17/2014 2:01 AM, Michael A. Terrell wrote: Jon, do you have a spare data cable for the drives? I've seen more than one that was bad. Hmm, never seen one go bad myself. Too bad I tossed probably a dozen of them before I moved... I don't think that's it, as BIOS is also reporting only one of the two DVD drives and calls it a CD-ROM. But I'll see if I can get one in town, certainly worth a shot. Thanks, Jon Swap em and make sure that if they are IDE, one is set for master and one for slave. And in older MOBOs...try to put a optical drive as a slave to C: (E: and the second one as a Slave(F) to D (other hard drive if you have 2 hard drives. If one of the config jumpers has fallen out.,.it can make that drive invisible or in stone conflict. Which most folks dont know or remember. Which is one of the reasons (among seveal) they developed SATA... My regular desk top puter has 4 hard drives, 2 DVD Read/write and 3 addtional USB drives..but I have a card that allows me to add additonal IDE drives (up to 4 on the card..a Promise Tech card)..so I couild run a total of 6 HDs and 2 opticals, plus the USB media. I have a pretty decent power supply to run the drives...shrug. Gunner The SIMPLE way is to set them all to CS (Cable Select) and mark which one goes on the end of the cable so you know which one is the master (when it matters) |
#18
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OT computer question...
On Saturday, May 17, 2014 8:24:14 AM UTC-7, Clare wrote:
On Fri, 16 May 2014 22:58:33 -0700, Gunner Asch Swap em and make sure that if they are IDE, one is set for master and one for slave. The SIMPLE way is to set them all to CS (Cable Select) and mark which one goes on the end of the cable so you know which one is the master (when it matters) There are cables that support cable select (these have one blue, one grey, and one black connector), and cables that don't. The first recommendation above is nonstandard if used with a modern, ultraATA, CS supporting cable. When swapping cables around, the blue connector MUST be to the logic board; the grey is for the slave, and black is the master. |
#19
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#20
Posted to rec.crafts.metalworking
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OT computer question...
On Sat, 17 May 2014 12:05:31 -0700 (PDT), whit3rd
wrote: On Saturday, May 17, 2014 8:24:14 AM UTC-7, Clare wrote: On Fri, 16 May 2014 22:58:33 -0700, Gunner Asch Swap em and make sure that if they are IDE, one is set for master and one for slave. The SIMPLE way is to set them all to CS (Cable Select) and mark which one goes on the end of the cable so you know which one is the master (when it matters) There are cables that support cable select (these have one blue, one grey, and one black connector), and cables that don't. The first recommendation above is nonstandard if used with a modern, ultraATA, CS supporting cable. When swapping cables around, the blue connector MUST be to the logic board; the grey is for the slave, and black is the master. The end connector is the slave, and pin 28 is not connected on the slave connector for a CS compatible cable. So just cut #28 (counting from the coloured side) and you have a CS cable. Most cables produced in the last 15 or more years are CS compatible cables. |
#21
Posted to rec.crafts.metalworking
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OT computer question...
On Saturday, May 17, 2014 4:00:29 PM UTC-7, Clare wrote:
On Sat, 17 May 2014 12:05:31 -0700 (PDT), whit3rd wrote: On Saturday, May 17, 2014 8:24:14 AM UTC-7, Clare wrote: On Fri, 16 May 2014 22:58:33 -0700, Gunner Asch Swap em and make sure that if they are IDE, one is set for master and one for slave. There are cables that support cable select (these have one blue, one grey, and one black connector), and cables that don't. ...with a modern, ultraATA, CS supporting cable. When swapping cables around, the blue connector MUST be to the logic board; the grey is for the slave, and black is the master. The end connector is the slave, and pin 28 is not connected on the slave connector for a CS compatible cable. So just cut #28 (counting from the coloured side) and you have a CS cable. Clearly, you're referring to 40-wire cables (UltraATA are 80wire cables with 40-wire sockets). Those 40-wire cables are IDE; the recent cables are all UltraATA, and are color-coded. For UltraATA, the end connector must be the master (it's in the standard). Regardless of the CS feature, UltraATA must be terminated at the ends for signal-propogation integrity, and that means a sole unit (master) on the bus must be on the end connector. |
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