Could it be my Motherboard's problem?

[andgen]

I have been troubled by this problem from the first day I assembled my computer.

When I play games, the screen may randomly freeze for several seconds. Sometimes come with mashed pictures.

Fisrtly I thought it was my graphic card's problem. However, after I changed my card to the current one, the problem still exists. Then I changed my PSU to the current one, still has same problem. I even updated my raid0 HDD system to SSD. I tried everything I could only exepet changing CPU and Motherboard.

I found that when the problem comes out, it is accompanied by a frequency reduce on my graphic card. The frequency could suddenly decent from 900mhz to 405mhz and it is fixed there unless I restart my computer. It looks like a self-protection function is activated, but I did not overlock anything. And it is unbelievable that the two cards both are defective. Also the temprature of the graphic card is prettey normal (70 ℃). Now I am totally confused. Could it be the Motherboard's problem? Anyone can help me figer it out where the problems locate?

Thanks for any suggestions!

Microsoft Windows 7 Ultimate
QuadCore Intel Core i5-2500K, 3400 MHz (34 x 100)
Gskill 4GB
Biostar TZ68A+
NVIDIA GeForce GTX 560 Ti
PLEXTOR PX-64M2S (64 GB, SATA-III)
Seasonic Xseries 560W

 

[linkin]

What drivers are you on? It is possible to get two faulty cards in a row. I've also heard things about Battlefield 3 and GTX 560 Ti's needing more voltage or a lower core clock as many come pre-overclocked.

 

[andgen]

What drivers are you on? It is possible to get two faulty cards in a row. I've also heard things about Battlefield 3 and GTX 560 Ti's needing more voltage or a lower core clock as many come pre-overclocked.

Yes! That's it! The GTX 560 ti i have is a pre-overlocked one, and the previous GTX 460 is too! So they share the same traits (stutter when gaming and driver stopped reponding sometimes).

Now I reverse the driver to 275.33, my computer now is little more stable than before. However, before I realized it is the driver's problem, I had already RMAed a video card and replaced a PSU. I am a little disapointed with NVIDIA. Maybe next time I should buy an AMD.

Thank you!

 

[Okedokey]

I had to up the voltage on my GTX580s to keep them stable in BF3. I just used MSI Afterburner and put them up to 1100mV.

 

[jonnyp11]

Yes! That's it! The GTX 560 ti i have is a pre-overlocked one, and the previous GTX 460 is too! So they share the same traits (stutter when gaming and driver stopped reponding sometimes).

Now I reverse the driver to 275.33, my computer now is little more stable than before. However, before I realized it is the driver's problem, I had already RMAed a video card and replaced a PSU. I am a little disapointed with NVIDIA. Maybe next time I should buy an AMD.

Thank you!

actually as far as that stuff it mostly goes to the manufacturers trying to beat each other, so they overclock them so their product is more appealing, then you get it and realize that something like this happens. up the voltage .05/.025 or lower the clocks and it should be fine.

 

[bratsos]

You have check and cpu and psu but RAM you have check ?

A error random address of RAM effect all compoments of your desktop.

Just in case use a memery test, to make sure memory chips is OK.

(Vista - 7 have a memory test, use F5 or F8 before show the logo of windows startup and then TAB and choice memory test...