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Computer crashes, no idea why.

Last response: in Systems
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July 1, 2010 2:23:10 AM

I recently decided to get into computer building, and with the help of the internet and a friend, I built a system with these parts:

CPU: AMD Athlon II X4 635 Quad Core Processor AM3 2.9GHZ 2MB L2 Cache 95W 45NM
http://www.ncix.com/products/index.php?sku=50969

RAM: G.SKILL F3-12800CL9D-4GBRL Ripjaws PC3-12800 4GB 2X2GB DDR3-1600 CL9-9-9-24 Core i5 1.5V Memory Kit
http://www.ncix.com/products/?sku=42745&vpn=F3-12800CL9...

GPU
: Powercolor Radeon HD 4850 PCs 625MHZ 1GB 1.9GHZ GDDR3 PCI-E VGA DVI HDMI Video Card
http://www.ncix.com/products/?sku=41733&vpn=AX4850%201G...

MOBO: Gigabyte GA-MA785GMT-UD2H AMD785G mATX AM3 PCI-E DDR3 Video Sound GLAN CrossFireX HDMI Motherboard
http://www.ncix.com/products/index.php?sku=41727

CPU FAN:
Arctic Cooling Freezer 7 Pro REV.2 CPU Heatsink Cooler LGA1366 LGA1156 LGA775 AM2 AM3 W/ 92MM Fan
http://www.ncix.com/products/index.php?sku=42379

CASE: Antec Sonata III Black ATX 16IN Mid Tower Quiet Case 3X5.25 2X3.5 4X3.5IN 500W 120MM Fan
http://www.ncix.com/products/index.php?sku=24294

HDD: Western Digital WD10EARS Caviar Green 1TB SATA 64MB Cache 3.5IN Hard Drive OEM
http://www.ncix.com/products/index.php?sku=48186

CD: LG GH22LP20 Black 22X IDE Lightscribe DVDRW OEM
http://www.ncix.com/products/index.php?sku=33064

PSU included the case: Antec Earthwatts Green 500W Power Supply ATX12V V2.0 Active PFC 80PLUS Bronze 80MM Fan
http://www.ncix.com/products/?sku=47698&vpn=EA500D&manu...

Running Windows 7 64-bit by the way.

But it freezes a lot for some reason. No BSOD, or any screen at all. Either the screen goes black, or the current image is frozen. Both ways I hear a loud buzzing sound from my headphones/speakers and I'm forced to hard-reboot my PC. Right as it happens, my fan seems to start up again, I think.

I've done some self-diagnosing, and this is what I figured:
-RAM's fine, after running memtest
-Temperatures are fine, 30-45 celsius
-Everything's connected in the right place
-I'm not overclocking anything
-Voltages are set right
-BIOS and drivers are all updated
-No extraneous dust or anything in the case.

I have no idea what to do at this point. Help would be greatly appreciated!

More about : computer crashes idea

July 1, 2010 2:40:28 AM

It could your HDD that has faulty sectors. I once had a computer that would randomly freeze and it turned out the be the HDD. Run some HDD tests.
a c 113 B Homebuilt system
July 1, 2010 2:46:08 AM

What are you using to monitor temps? HWMonitor is good, GPU-Z is great.
http://www.tomshardware.com/forum/264823-31-progess-tro...
You'll find links to those and more there.

Also, download CPU-Z and post screenshots of the various tabs. These can help us a lot. We need to verify if your RAm is indeed running at the proper timings and voltage. It's quite possible that your CPU can't handle 1600Mhz if indeed the RAM is running at that. The memory controller on your CPU is only technically rated for 1333.
Related resources
July 1, 2010 3:22:48 AM

Quote:
It could your HDD that has faulty sectors. I once had a computer that would randomly freeze and it turned out the be the HDD. Run some HDD tests.


Just ran chkdsk, no errors found.

Quote:
What are you using to monitor temps? HWMonitor is good, GPU-Z is great.
http://www.tomshardware.com/forum/ [...] leshooting
You'll find links to those and more there.

Also, download CPU-Z and post screenshots of the various tabs. These can help us a lot. We need to verify if your RAm is indeed running at the proper timings and voltage. It's quite possible that your CPU can't handle 1600Mhz if indeed the RAM is running at that. The memory controller on your CPU is only technically rated for 1333.


I ran GPU-Z. This is what came up:



And here are screenshots of the various CPU-Z tabs.






a c 113 B Homebuilt system
July 1, 2010 3:38:01 AM

Thanks, and the SPD tab please from CPU-Z
a b B Homebuilt system
July 1, 2010 3:42:38 AM

I would download and install DriverSweeper
run in safemode
check off ATI
Click clean
Restart in normal mode
install Catalyst 10.4
If that doesn't help reset your CMOS
July 1, 2010 6:04:04 AM

Oh, right, sorry. I'm only running one stick of RAM right now, the other one was defective and is in the process of being replaced.


Also I installed Catalyst 10.4. Previously it was 10.6.

July 1, 2010 3:16:18 PM

It's revision 1.1. Would that have an effect on whatever drivers/bios I downloaded?
a c 113 B Homebuilt system
July 1, 2010 8:57:45 PM

It might. I'm not seeing any obvious problems with your RAM settings.

Does this happen if you remove the GPU and run just off the onboard GPU?
July 4, 2010 8:36:20 AM

It seems like it only happens when I plug in the GPU. I don't know why though, I thought the GPU was compatible.
a c 113 B Homebuilt system
July 4, 2010 8:59:04 AM

It could be a matter of a firmware update from Powercolor, or it could be a bad card. It would not be the first time I have heard of compatibility issues between a specific board and GPU, but they are rare.

I'm guessing you are disabling the onboard GPU while running off the 4850?

Anyway, seems like you have a valid RMA at this point.
!