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Is my problem CPU or Motherboard?

post #1 of 10
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Recently, whenever I played games or sometimes just randomly, the video would randomly cut out, and the monitor would go into standby mode. The GPU fan would SOMETIMES rev up to 100% when this happened.

It ISN'T the GPU because I changed that out. (from 4870x2 to 6950)

It ISN'T the memory, it passed two full passes in memtest.

I am not sure how to continue diagnosis at this point. the CPU is back to stock settings and I am still having random failures.

Help!
Edited by Megas3300 - 1/16/11 at 6:52am
Aero X2
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Aero X2
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post #2 of 10
"Random failures" sounds more to me like a CPU issue. You should check your CPU temps next time you use that system. Perhaps your CPU is overheating and then shutting itself down to prevent total failure.
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post #3 of 10
I think that it would be a driver issue, but the chances of 2 bad drivers in a row are slim. Try updating your video drivers anyways and see if it fixes the problem.
    
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post #4 of 10
Quote:
Originally Posted by -Allen- View Post
I think that it would be a driver issue, but the chances of 2 bad drivers in a row are slim. Try updating your video drivers anyways and see if it fixes the problem.
A hardware issue is more likely than software issues. If it was a software issue he would be getting BSOD's and memory dumps, not complete system failure without any warning. I doubt it is the mobo, any mobo issues I have ever experienced are usually a "one and done" kinda scenario. You will get one major failure, and them you have a dead mobo. CPU is the most likely culprit.

Did I mention I am like the Dr. House of PC's?



This might fix your problem... Your PC is just having heart failure. Get a defibrillator. JK.
Edited by Computer-Lab in Basement - 1/16/11 at 7:05am
My Core 2 Machine
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Core 2 Duo 2.4Ghz E6600 Intel DQ965GF SAPPHIRE ATI Radeon HD 4670 1GB 4x1GB Kingston DDR2-400 
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Hitachi 250GB SATA, 250GB STECH Simple Drive DVD/CD Combo Windows 7 Pro 64-bit Dell 17" LCD 
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My Core 2 Machine
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Core 2 Duo 2.4Ghz E6600 Intel DQ965GF SAPPHIRE ATI Radeon HD 4670 1GB 4x1GB Kingston DDR2-400 
Hard DriveOptical DriveOSMonitor
Hitachi 250GB SATA, 250GB STECH Simple Drive DVD/CD Combo Windows 7 Pro 64-bit Dell 17" LCD 
MonitorKeyboardPowerCase
Dell 18" LCD CM Storm QuickFire Rapid (Cherry MX Blue) 500W Rosewill Stallion RD 500-2SB XIGMATEK Pure Black 
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post #5 of 10
Sounds like a PSU problem to me, not feeding your system enough power during load (i.e. gaming). Someone else is having the same problem. If you have another PSU try throwing it in your system and see if it continues. If not could very well be your CPU overheating.
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post #6 of 10
Umm... So you're saying a 1000W PSU isn't providing enough power? When he restored his CPU to stock settings it would have decreased the amount of power being drawn from the PSU. Considering that, AND considering that he downgraded from a 4870x2 to a 6950, that would have solved his PSU issue. Not to mention the fact that the OP said this also occured randomly, not just during gaming. That not being the case, I shall continue to diagnose it as a CPU issue.
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CPUMotherboardGraphicsRAM
Core 2 Duo 2.4Ghz E6600 Intel DQ965GF SAPPHIRE ATI Radeon HD 4670 1GB 4x1GB Kingston DDR2-400 
Hard DriveOptical DriveOSMonitor
Hitachi 250GB SATA, 250GB STECH Simple Drive DVD/CD Combo Windows 7 Pro 64-bit Dell 17" LCD 
MonitorKeyboardPowerCase
Dell 18" LCD CM Storm QuickFire Rapid (Cherry MX Blue) 500W Rosewill Stallion RD 500-2SB XIGMATEK Pure Black 
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CPUMotherboardGraphicsRAM
Core 2 Duo 2.4Ghz E6600 Intel DQ965GF SAPPHIRE ATI Radeon HD 4670 1GB 4x1GB Kingston DDR2-400 
Hard DriveOptical DriveOSMonitor
Hitachi 250GB SATA, 250GB STECH Simple Drive DVD/CD Combo Windows 7 Pro 64-bit Dell 17" LCD 
MonitorKeyboardPowerCase
Dell 18" LCD CM Storm QuickFire Rapid (Cherry MX Blue) 500W Rosewill Stallion RD 500-2SB XIGMATEK Pure Black 
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IBM Track Point L40 Sikorsky360 Mousepad 
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post #7 of 10
Quote:
Originally Posted by Computer-Lab in Basement View Post
Umm... So you're saying a 1000W PSU isn't providing enough power? When he restored his CPU to stock settings it would have decreased the amount of power being drawn from the PSU. Considering that, AND considering that he downgraded from a 4870x2 to a 6950, that would have solved his PSU issue. Not to mention the fact that the OP said this also occured randomly, not just during gaming. That not being the case, I shall continue to diagnose it as a CPU issue.
You're right, power supplies never go bad. They are all made 100% perfectly and never break, I think its the unicorn tears that make them never break.

Anyway why rule out something that could cause this problem without testing it first. Yeah he did say it also happens randomly if you look you can see that the CPU is overclocked pulling more voltage then normal. If the 12 volt rail is bad this could easily cause the system to shut down due to lack of power and would explain why the computer shuts down during gaming (the 12 volt rail isnt pumping enough juice to the GPU as well).
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CORSAIR HX 750W Cooler Master HAF 922 
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post #8 of 10
I am guessing it is highly unlikely that it is the PSU only because Corsair makes pretty high quality PSUs. The CPU is more likely only because overclocking decreases the lifespan of a CPU. The reality of it is is that it is kind of hard to diagnose something without being able to run some tests. Kinda like that episode of House when they had to diagnose the womon who was living on the south pole. Without extra information, I can't give a very accurate diagnosis.
Edited by Computer-Lab in Basement - 1/16/11 at 3:25pm
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CPUMotherboardGraphicsRAM
Core 2 Duo 2.4Ghz E6600 Intel DQ965GF SAPPHIRE ATI Radeon HD 4670 1GB 4x1GB Kingston DDR2-400 
Hard DriveOptical DriveOSMonitor
Hitachi 250GB SATA, 250GB STECH Simple Drive DVD/CD Combo Windows 7 Pro 64-bit Dell 17" LCD 
MonitorKeyboardPowerCase
Dell 18" LCD CM Storm QuickFire Rapid (Cherry MX Blue) 500W Rosewill Stallion RD 500-2SB XIGMATEK Pure Black 
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Core 2 Duo 2.4Ghz E6600 Intel DQ965GF SAPPHIRE ATI Radeon HD 4670 1GB 4x1GB Kingston DDR2-400 
Hard DriveOptical DriveOSMonitor
Hitachi 250GB SATA, 250GB STECH Simple Drive DVD/CD Combo Windows 7 Pro 64-bit Dell 17" LCD 
MonitorKeyboardPowerCase
Dell 18" LCD CM Storm QuickFire Rapid (Cherry MX Blue) 500W Rosewill Stallion RD 500-2SB XIGMATEK Pure Black 
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post #9 of 10
seems PSU to me. Try another PSU and see if the problem still occurs.
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post #10 of 10
Quote:
Originally Posted by Computer-Lab in Basement View Post
I am guessing it is highly unlikely that it is the PSU only because Corsair makes pretty high quality PSUs. The CPU is more likely only because overclocking decreases the lifespan of a CPU. The reality of it is is that it is kind of hard to diagnose something without being able to run some tests. Kinda like that episode of House when they had to diagnose the womon who was living on the south pole. Without extra information, I can't give a very accurate diagnosis.
Its not that unlikely to have a PSU break, even if it is made by Corsair. Overclocking only degrades the CPU if you go based the voltage limit or run the CPU pasted the max temp.

Quote:
Originally Posted by Djankie View Post
seems PSU to me. Try another PSU and see if the problem still occurs.
^This. Trust Zero.
baby cakes
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Macbook 4,1
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CPUMotherboardGraphicsRAM
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Core 2 Duo 2.4Ghz Penryn T8300 Some logical board GMA X3100 4GB (2x2GB) DDR2 667Mhz 
Hard DriveOptical DriveOSMonitor
Hitachi 160 GB 5400 RPM SATA II Combo drive OSX 10.6.4 (Snow leopard) 13.3" 1280x800 TFT 
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baby cakes
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Macbook 4,1
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Hard DriveOptical DriveOSMonitor
C300 64GB SATA III, 2x F3 1TB 7200rpm RAID 0 Sony Optiarc 24X DVD/CD Ubuntu 14.04 22" Dell SP2009W 1680x1050 
PowerCase
CORSAIR HX 750W Cooler Master HAF 922 
CPUMotherboardGraphicsRAM
Core 2 Duo 2.4Ghz Penryn T8300 Some logical board GMA X3100 4GB (2x2GB) DDR2 667Mhz 
Hard DriveOptical DriveOSMonitor
Hitachi 160 GB 5400 RPM SATA II Combo drive OSX 10.6.4 (Snow leopard) 13.3" 1280x800 TFT 
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