Tim wrote:

"Michael A. Terrell" wrote in message
m...

I have had new computers die in less than a year, due to bad
electrolytics. One started randomly rebooting, and the other refused to
turn on. Not all systems are the same, used the same, or built with the
same grade of parts. Look at the motherboard and power supply in one of
those servers and compare it to a cheaper desktop computer. You'll find
a better grade of capacitors, and more attention to air flow in the
design. You're comparing apples to crab apples.

The original XT motherboards are damn near impossible to kill but
there isn't much there to generate heat, either.

Yeah, I used to have the same problems when I was turning mine off and on
daily.


I have only seen clone XT motherboards go bad, and I rebuild lots of
old XTs when Ihad a used computer business. Even the IBM AT mother
boards had a higer failure rate than the clone XT boards whe tey went
to the first custom chips, to eliminate the 'glue logic'.


Good for you. Now try running those servers in a 120 degree room
with no air circulating and see how long they last. Have you never
heard of derating components to extend the operating life, or the term
MTBF? There is a reason most server rooms are cold. A/C is a lot
cheaper than new servers. The same goes for a radio or TV control
room. They aren't 60 to 68 degrees to make the operator comfortable.

Why, if you are not going to provide adaquate cooling, you deserve what ever
you get.


Yawn. Always have to play the dumbass, don't you?

They weren't air conditioned back in the vacuum tube days, but the
equipment was designed to work in higher temperatures. It was no fun
sitting in a control room with the transmitter a few feet from your side
in a room that was well over 100 degrees. Some of them had no herat,
either.

One military radio & TV station I worked at had a steam plant on the
other end of the building, but all the station got was whatever heat was
left in the return lines, and that went to the offices. Some days it
was below zero, and you sat next to the transmitter whenever you could,
becasue it was closer to 32 degrees.


Try that near a large industrial park sometime, in a building with
over 300 SMPS power pieces of equipment. The harmonics and noise on the
neutral will cause it to overheat. Decades ago, it was common to use
two gauges smaller for the neutral on three phase. When they started
having electrical fires n office buildings, they discovered that the
harmonics was the cause, and require new systems to have the neutral
larger than the three phases.

The whole industrial park and a small subdivion was on the same small
substation. The spikes and surges caused the hundreds of UPS to
complain constantly.

You're not listening. Again, if you don't isolate the computers from the
electric motors, you deserve what ever you get.


You have no reading comprehension. "the hundreds of UPS" weren't
there for people to trip over.


--
You can't have a sense of humor, if you have no sense!