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Mike De Petris Mike De Petris is offline
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Default motherboard cpu power section check

On Aug 16, 6:51*pm, Meat Plow wrote:
On Mon, 16 Aug 2010 07:15:02 -0700, Mike De Petris wrote:
On Aug 16, 3:55*pm, Meat Plow wrote:
On Mon, 16 Aug 2010 06:28:47 -0700, Mike De Petris wrote:
On Aug 16, 2:45*pm, Meat Plow wrote:
On Mon, 16 Aug 2010 01:17:03 -0700, Mike De Petris wrote:
On Aug 15, 6:46*pm, Meat Plow wrote:
On Sun, 15 Aug 2010 09:25:04 -0700, Jeff Liebermann wrote:
On Sun, 15 Aug 2010 15:13:09 +0000 (UTC), Meat Plow
wrote:


Is that a dual core CPU or hyperthreaded single core.


1.73GHz Intel Core 2 Duo Mobile T5300


Ok it's got two cores. Reason I asked was disabling say a 2 ghz
single core HT CPU can acutally boost performance. When in HT
mode the RAM and the CPU process at 1 ghz.


After the "cpu disabled trick" worked well for hours, with laptop
running and restarting with it PSU, I had no more luck. The day
after it didn't start as before. Tried the trick again, I even
disabled both cpus in devmgmt but no luck. Used an hardware
monitoring program to investigate situation but nothing helps,
only curious thing is that trying to access ACPI temperature
values the pc suddenly powered down.


Even when all seems running weel on battery, or "fake battery"
with 12V PSU, the pc freezes at a point in some conditions that I
still have to determine, but to me this shows it's an hardware
fault. When running on normal PSU in Windows 7 I tried to change
the options for the power/tilt/sleep buttons and the pc freezed,
and that was when it didn't worked any more that way. Power
buttons options can be changed without problem running on battery..
On battery the pc can run for hours, but it seems that stressing
it a bit and leaving it alone leads to a freeze or a sudden power
down, maybe when the power management decides to do something,
something that I cannot know as I simply find the pc hanging on or
completely powered off.


I must check the motherboard, but except for ONE capacitor in the
power section that is 3 or 4 mm big (and still smd) all others are
small SMD, and you can just identify them by being marked
Cnumber as I think all resistors are Rnumber.


The problem is I need to find a day with plenty of time, as to
test those capacitors needs to unweld them with hot air check and
solder them again, and they are soooo small... there are smd
three-legs transistor components too, but I do not think I would
be able to check them.


Maybe I should start with the few fuses and resistors as they can
be checked in place to see if they are opened, at least.


You seem to have a decent strategy in place. Have you thought about
installing a software program that can monitor CPU core and other
voltages? I've used Motherboard Monitor on desktops, it may work on
your Intel based board. And it's a free utility.


http://www.softpedia.com/get/System/...o/Motherboard-
Monitor.s...


All motherboards have some sensors and/or other ACPI based sensors.


thank you, I tried one but didn't give me voltages, all other values
are normal, accessing ACPI temperatures leaded to a sudden power off,
will have a try with other monitoring software


in the while I'm also looking a cheap compatible CPU, I am still not
that sure it's a mainboard fault


I'd have to assume that Toshiba still uses a proprietary ACPI
interface. My Satellite 1905-S301 has it's own Toshiba power management
console.


I doubt it's the CPU but rather the ACPI hardware. If it is the CPU and
you get a cheap replacement that would be great, I would be wrong and
it wouldn't be the first time.


I will give it a try as I found a cheap CPU, I'll test it and will
resell it in case, but at least I will be sure mine is ok.


As "ACPI hardware" seems to be guilty, where should I look for on the
motherboard and what should I check first? There are so many small
capacitors around... may it be a custom chip?


Good question. Maybe a program like Belarc Advisor could tell you what
device(s) is/are responsible. I think it's another freeware app so you
may check it out.



what can we say from this:

Computer Profile Summary
Computer Name: W (in WORKGROUP)
Profile Date: marted́ 17 agosto 2010 19:48:57
Advisor Version: 8.1m
Windows Logon: mike


Operating System System Model
Windows 7 Ultimate (build 7600)
Install Language: English (United States)
System Locale: Italian (Italy) TOSHIBA Satellite A205
PSAF0U-01Q009
System Serial Number: 37252508Q
Enclosure Type: Other
Processor a Main Circuit Board b
1,73 gigahertz Intel Core 2 Duo
64 kilobyte primary memory cache
2048 kilobyte secondary memory cache
64-bit ready
Multi-core (2 total)
Not hyper-threaded Board: Intel Corporation CAPELL VALLEY(NAPA)
CRB
BIOS: Phoenix Technologies LTD 5.20 10/25/2007
Drives Memory Modules c,d
79,92 Gigabytes Usable Hard Drive Capacity
67,18 Gigabytes Hard Drive Free Space

ST980210AS [Hard drive] (80,03 GB) -- drive 0, s/n 5QY0S80G, rev
3.ALC, SMART Status: Healthy 1016 Megabytes Usable Installed
Memory

Slot 'M1' has 512 MB
Slot 'M2' has 512 MB
Local Drive Volumes


c: (NTFS on drive 0) 79,92 GB 67,18 GB free
Network Drives
None detected
Users (mouse over user name for details) Printers
local user accounts last logon
mike 17/08/2010 07:21:31 (admin)
local system accounts
Administrator 14/07/2009 06:53:58 (admin)
Guest never
HomeGroupUser$ 17/08/2010 19:05:41

DISABLED Marks a disabled account; LOCKED OUT Marks a locked account

Microsoft Shared Fax Driver on SHRFAX:
Microsoft XPS Document Writer on XPSPort:
Controllers Display
ATA Channel 0 [Controller]
ATA Channel 1 [Controller]
Intel(R) 82801GBM/GHM (ICH7-M Family) Serial ATA Storage Controller -
27C4 Mobile Intel(R) 945 Express Chipset Family [Display adapter]
(2x)
Generic PnP Monitor (15,4"vis)
Bus Adapters Multimedia
Texas Instruments PCI-8x12/7x12/6x12 CardBus Controller
Intel(R) 82801G (ICH7 Family) USB Universal Host Controller - 27C8
Intel(R) 82801G (ICH7 Family) USB Universal Host Controller - 27C9
Intel(R) 82801G (ICH7 Family) USB Universal Host Controller - 27CA
Intel(R) 82801G (ICH7 Family) USB Universal Host Controller - 27CB
Intel(R) 82801G (ICH7 Family) USB2 Enhanced Host Controller - 27CC
High Definition Audio Device
Virus Protection [Back to Top] new Group Policies
Microsoft Security Essentials Version 2.1.6805.0
Scan Engine Version 1.1.6004.0
Virus Definitions Version 1.87.1998.0
Realtime File Scanning On
None discovered
Communications Other Devices

Marvell Yukon 88E8039 PCI-E Fast Ethernet Controller
primary Auto IP Address: 192.168.178.29 / 24
Gateway: 192.168.178.1
Dhcp Server: 192.168.178.1
Physical Address: 00:A01:72:93:47
Microsoft ISATAP Adapter
Teredo Tunneling Pseudo-Interface

Networking Dns Server: 192.168.178.1
Texas Instruments 1394 OHCI Compliant Host Controller
Microsoft AC Adapter
Microsoft ACPI-Compliant Control Method Battery
Microsoft Composite Battery
HID-compliant consumer control device
HID-compliant device
USB Input Device (2x)
HID Keyboard Device
Standard PS/2 Keyboard
SDA Standard Compliant SD Host Controller
USB Composite Device
USB Root Hub (5x)
Generic volume shadow copy