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Graphic card running at pci e x1 instead of x16 when overclocking - Page 3

post #21 of 34
Thread Starter 
So I think the reason could be the PCI-E frequency, I just changed the fsb from 200 x13(2.6ghz) to 233 x13 (3ghz) and have no issues. Is it safe to leave the pci-e frequency on auto when the fsb is 233? Also how safe do you guys think getting an E8400(and probably running it on stock) would be?
post #22 of 34
PCIE on auto should be fine. Also with 800mhz Ram your e8400 will run problem free (still a 65 watt CPU). Although with today's game using more than 2 cores, you may want to look into a C2Q if you can spend a little extra $$$. Just my .02
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post #23 of 34
Thread Starter 
Yeah I was just considering the higher fsb of the E8400 interfering with my graphic card only going to x16 on auto frequency. How high will the pci e frequency go on auto if the fsb of the processor is around 300ish? And i dont seem to find a way to check my pci e frequency in windows.

And for C2Q, I feel safer running a dual core 45nm on G31M over a 65nm C2Q (since the 45nm C2Q are far beyond my price range). I'm getting a new rig in a year anyway so a E8400 should do the trick i guess smile.gif - IF its okay with this weird pci e slot only working on auto.
post #24 of 34
My understanding is the PCIe frequency works separately from the FSB frequency. So, I think the higher front side bus would not affect PCIe bus, meaning that the 1x issue is caused by something else.
(admittedly this is very different, but on my Gulftown, I can adjust the BCLK (FSB) to whatever I like, but the PCIe frequency stays at 100MHz - that can be changed separately.)
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post #25 of 34
Some OEM wolfdale boards have PCIe and FSB tied, but other than that i see no connection either
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post #26 of 34
I can't with 100% certainty say that it will work without effecting the link speed of the PCIE bus. But, having it set to Auto should keep it around 100Mhz when the CPU is at stock speed. Also, the E8400 is 1333 FSB speed CPU which means that is runs at 333Mhz strap quad pumped to 1333 Mhz. As long as your motherboard will run 1333 Mhz natively all should be fine. The CPU isnt actually overclocked but just runs at a higher FSB strap than the CPU you have now. It really shouldn't effect your PCIE frequency,
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post #27 of 34
Thread Starter 
So there is no way to check pci e frequency in windows? I tried everest and gpu-z but wont show me.
post #28 of 34
I don't remember if OCCT has a monitor for PCI-e Frequency, but it posts prints of the tests run with lots of data.
http://www.ocbase.com/

Some nifty tests for CPU, Memory, and Power Supply too.

I had a GTX465 flashed to a GTX470 that suddenly stopped scaling to PCI-e 2.0 x16. It was stuck at PCI-e 1.1 x1.
Not sure what I did, probably tried to overclock it too much and I consider it a dead card now.

Maybe your GPU is same.
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post #29 of 34
i am a vietnamese. sorry about my english.
i am using 7750 @core 1000 mem 1450 and it's running at 1x when overclock. and i fixed it. i used trixx sarphie and tick "disable ULPS". you can try.
sorry about my english, again. frown.gif
post #30 of 34
Thread Starter 
Quote:
Originally Posted by ninjarua View Post

i am a vietnamese. sorry about my english.
i am using 7750 @core 1000 mem 1450 and it's running at 1x when overclock. and i fixed it. i used trixx sarphie and tick "disable ULPS". you can try.
sorry about my english, again. frown.gif
Ye but my problem isn't the gpu overclocking, its cpu overclocking affecting the gpu and this happens before windows is booted at all smile.gif.
Still havent found anything about what the pci e "auto" frequency really does on an g31m and whats its correlation with the fsb
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