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Windows 7: DPC Latency spikes

21 Oct 2011   #11
Resplendence

Win7 x64
 
 

I would try disabling your USB devices one by one by pulling them out or disabling them in the device manager to see if the problem goes away. Did you get your wired desktop set ? Did it not fix the problem ?


My System SpecsSystem Spec
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25 Oct 2011   #12
JoeW

Windows 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by Resplendence View Post
I would try disabling your USB devices one by one by pulling them out or disabling them in the device manager to see if the problem goes away.
I have tried this and with nothing connected, in addition removing all non essential PCI cards and changing the graphics card there is no change.

Quote   Quote: Originally Posted by Resplendence View Post
Did you get your wired desktop set ? Did it not fix the problem ?
Again made no difference. The two processes mentioned earlier are unchanged. Got another EP45-UD3P mobo arriving soon so will see if that changes anything.
My System SpecsSystem Spec
26 Oct 2011   #13
JoeW

Windows 7 Ultimate x64
 
 

FIXED!

I bought another GA-EP45-UD3P off eBay a rev 1.6 this time.

I also noticed that my ATX 8 pin had a 4 pin connector from the PSU. According to the manual this should have been ok if only using one GPU. In any event I dug out the PCIx8 connector for my PSU and replaced the x4 one.

Latency is now fine as per the pic.

If anyone else has this problem check your PCI power connector. If that makes no difference its your mobo.


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