Computer Reboots

[Levian]

First I want to say hello. First time I am actually posting here but I have found help plenty of times by just lurking at the forums, not this time though so I hope this problem will get solved sooner or later.


Overview of the problem:
I have orderd new parts and put together. The computer has seem unstable when it had problems installing XP and reboots when you stress it.


Full description of the problem and symptoms:
I put everything together, it booted up fine. I insert a XP CD, format, create a partion and copies the files. It reboots and goes into the installation. About 10 seconds into the installation it stops and reboots and then does the same thing over and over. I tried with annother CD, same results.

I first thought it was my old NEC PATA CD-rom acting funny so I went and bought a new Samsung SATA reader, was fitting better with my new case anyway. =) I boot up the XP-installation again and everything works like a charm. I install Windows and drivers but when I stress the computer, for example with a game, it rebooted. After it happend a few times I couldnt boot to windows anylonger, telling me a file was corrupt. I insert the CD again and I am back to square one, it does not want to install, reboots during the installation step.

I tried with a different HD, I tried taking out one by one memory stick and I also tried updating the BIOS. This didnt change anything. I tried installing vista. It actually did install and it works fine. I tried 3dmark and the first 2 tests (if anyone knows much about it) goes smoothly but when the CPU test comes it reboots after a few seconds. I tried running it 4 times and it always reboots at the same spot. I also tried sisoft sandra and when I make CPU benchmarks it sometimes reboot, if I make two in a row it always reboots. Other tests in sandra goes well. Performance is also good as long as its working.

I thought it would be an overheating problem maybe, here is my values:

ITE IT87 hardware monitor

Voltage sensor 0 1.07 Volts [0x43] (CPU VCORE)
Voltage sensor 1 1.94 Volts [0x79] (VIN1)
Voltage sensor 2 3.25 Volts [0xCB] (+3.3V)
Voltage sensor 3 5.05 Volts [0xBC] (+5V)
Voltage sensor 4 12.22 Volts [0xBF] (+12V)
Voltage sensor 5 -12.54 Volts [0xC4] (-12V)
Voltage sensor 8 3.06 Volts [0xBF] (VBAT)
Temperature sensor 0 34°C (93°F) [0x22] (TMPIN0)
Temperature sensor 1 40°C (103°F) [0x28] (TMPIN1)
Temperature sensor 2 82°C (179°F) [0x52] (TMPIN2)
Fan sensor 0 2157 RPM [0x139] (FANIN0)
Fan sensor 2 1119 RPM [0x25B] (FANIN2)

AMD Phenom 9850 hardware monitor

Temperature sensor 0 40°C (103°F) [0x140] (core #0)
Temperature sensor 1 40°C (103°F) [0x140] (core #1)
Temperature sensor 3 40°C (103°F) [0x140] (core #3)
Temperature sensor 2 40°C (103°F) [0x140] (core #2)

GeForce 9600 GT hardware monitor

Temperature sensor 0 51°C (123°F) [0x33] (GPU Core)

I hope everything there is relevant, if more info is needed just ask. These are stats from when the system has been idle. under stress the cpu temp goes up to about 50C, thats when it reboots, and GPU seems to stay around 50-55C. I am not sure if these stats are to high but they dont seem extreme to me.

Right now the computer works fine, but I cant play any games, which is a shame because thats partly what it was for. I hope anyone have suggestions what to do next because I am really unsure. =(



My software:
Windows Vista Ultimate 32

My hardware:
Corsair 550 Watt
AMD Phenom 2,5Gz BE with original cooling
Gigabyte GA-MA770-DS3
Western Digital Caviar SE16 500GB
Seagate Barracude SATA 160GB
Corsair TWIN2X 6400 DDR2, 2048MB CL5 Kit
Gigabyte nvidia 9600GT 512MB

I am pretty happy with vista so I dont care XP wont install anylonger but probably the errors are connected. To me it seems that everytime I stress the CPU to much the computer reboots and I have no idea why. I hope anyone have some suggestions.

Know its a very long post, appreciate the time you took reading it.
Thanks a lot. =)

 

[law9933]

Can you stress it in Safe Mode to see if it reboots
If you think it could be heat take off the side & blow in with a room fan.

 

[The Bakery]

Temperature sensor 2 82°C (179°F) [0x52] (TMPIN2)

82c is way way way too hot. What is that sensor? I have a
sensor on my Biostar mobo that reads 270f constantly in
everest, so it might just be a bug.

First thoughts, bad CDD or HDD. You changed those, so
those are likely out. My recent build did the same thing
yours is - rebooting on the second CPU test in 3DMark.

What program are you using to monitor the temps?

Check your shutdown temp in your BIOS to make sure you
haven't set it to say... 50c although I don't know why they
would provide such a low shutoff.

Also, check the power rating for your corsair PSU. Does it
provide enough stable amps on the 12v?

It SOUNDS like your CPU is overheating or maybe your PSU
is failing.

Edit - My problem was an insufficient heatsink to get rid of
CPU heat when the load spiked on CPU test 2 and my shutoff
temp of 65c in my BIOS

 

[Levian]

Hi!

I was using HWMonitor to check my temeratures. That 82C temp is something called Auxiliary Temperature, (power supply or something?) The shutdown temp in bios show the same as well as sisoft Sandra.

However, I think I found the reason the system does what it does, and it makes me feel really stupid. Today I found this: http://www.gigabyte.eu/Support...el.aspx?ProductID=2722
It claims my MB with the latest bios does not officialy support my current CPU. It would make a lot of sense though with the random reboots on CPU stress and windows installation.

So now I am unsure what to do. Who knows how long it will take before a new version of the BIOS is realesed. I will try to talk with my retailer tomorrow but if no luck there... Anyone want to buy a cheap MB? =)

-_-

 

[The Bakery]

Does an OLDER bios support the phenom?

I'm guessing the answer there is NO. I don't think you can
return the mobo for that reason either. Maybe you should
just put it on Ebay and recoup your losses?

Sorry to hear that.

 

[Levian]

Well, guess that closes this case.

I emailed gigabyte and asked, and they said:

"As I understand it the problem is not with the BIOS, but with the amount of power this CPU needs - which is causing problems for some users. This is why we don't support this CPU on all our motherboards."

So new MB it is. Sour, but not the whole world. At least it will teach me to think twice before just picking a MB.