PCIe bus @ 100MHz right?

newls1

newls1

Supreme [H]ardness
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Arent you suppost to lock the PCIe bus @ 100MHz :confused: I keep seeing people running theirs @ 105,110, etc...... what is the purpose? I keep having a strange AUDIO LOCKUP ISSUE with my XF-i sound card on my DS3 motherboard. I've messed around with PCI latency (options in BIOS are 32,64,128) I have it at defualt 32, what should it be at, or what is best? Im getting so pissed off with this issue :( Any feedback would be great. Thanks all
 
Arent you suppost to lock the PCIe bus @ 100MHz I keep seeing people running theirs @ 105,110, etc...... what is the purpose?
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You don't HAVE to lock the PCIe bus. The purpose of locking it is to increase stability. The purpose of OC'ing the PCIe bus, is frankly, because you can. Generally speaking PCIe has enough bandwith for current GPU's so, there's honestly not much point besides the fact that you can.

I've messed around with PCI latency (options in BIOS are 32,64,128) I have it at defualt 32, what should it be at, or what is best?
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As long as the PCI bus (different then PCIe bus) is at default, then it would surprise me that the issue is the bus speed rather then something else.
 
Sometimes you get a little higher OC (or a more stable OC) if you increase your PCIe bus to 101-110mhz. It's a motherboard issue.
 
kirbyrj said:
Sometimes you get a little higher OC (or a more stable OC) if you increase your PCIe bus to 101-110mhz. It's a motherboard issue.
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Damn, im still confused :( Should I set mine to 105 and see if this helps? Is it going to hinder my OC any?
 
Ok. here's the deal.

Running cards over 100mhz can damage them (just like any overclocking can damage the piece) so you're supposed to lock it at 100mhz.

Now, some boards benefit from setting this setting to 101, 105, 110. These settings can increase the stability of the board under certain overclock conditions.

Dont increase the PCIe bus unless you can't overclock the FSB by more than a few points. Simple as that ;). You run the risk of destroying your card or having major PCIe instability.


Now, as for the sound card issue, try resetting your BIOS to stock (Clear the CMOS) and see if it goes away. Now, slowly change one setting at a time until it starts again, then you can diagnose whether or not there's a system problem or a BIOS setting problem.
 
Arcygenical said:
Ok. here's the deal.

Running cards over 100mhz can damage them (just like any overclocking can damage the piece) so you're supposed to lock it at 100mhz.

Now, some boards benefit from setting this setting to 101, 105, 110. These settings can increase the stability of the board under certain overclock conditions.

Dont increase the PCIe bus unless you can't overclock the FSB by more than a few points. Simple as that ;). You run the risk of destroying your card or having major PCIe instability.


Now, as for the sound card issue, try resetting your BIOS to stock (Clear the CMOS) and see if it goes away. Now, slowly change one setting at a time until it starts again, then you can diagnose whether or not there's a system problem or a BIOS setting problem.
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Thanks for the reply bro, but I've done The BIOS stuff you were talking about. This issue happens even when Im not using any OC. So far since im using the onboard INTEL HD sound, the issue hasnt happened yet, so only time will tell.
 
Thats a hell of a graphics card you have in that system. How powerful of a PSU are you using? I had the same problem with my old system where when i upgraded my graphics card while i still had a low power PSU my PCI devices magically would not work. However, when i switched to onboard video and took out the graphics card, it would work perfectly. I determined that it was that my PSU was not strong enough and replaced it with one that was more powerful. VIOLA! my problem was solved. It has something to do with the way the power goes through the expansion slots on some motherboards if i remember correctly. It sorta just goes down a latter of sorts where whatever is left over from your graphics card trickles down to the rest of the slots, thats why they put the graphics card at the top of the latter so that it always got enough power...or something like that.
 
Im using a 610w SLI PSU with 2 12v rails each having 23A each. Brand name I forgot. Not a bad PSU though. We I get a job ( just got laid off) I will buy another PCP&C PSU. More then likely the 610SLi that newegg has.
 
for what your running that is MORE than enough to run hell...2 of those cards. This is making me thing that it might be a voltage instability to the expansion slots or something to do with power supply to the expansion slots. If you didnt already, update you BIOS and make sure that your graphics card does not need a power plug from the PSU plugged into it. (stupid i know but i have seen people forget to do worse things)
 
OK, the onboard sound froze up again now too :mad: So I stuck in the XF-i card again, this time used the highest PCI slot, installed drivers, and now XF-i is using its own IRQ, where as before it was sharing with the 7900GTO, and network card. Put my PCIe to 105MHz in the BIOS (just to try to see if it stabilizes things) am going to creatives site to automaticaly download the newest drivers for the XF-i. Will restart, and play fear for as long as I can to see if it happens again. :rolleyes:
 
update: Having the PCIe bus @ 105MHz caused weird things in windows. If I closed a window, it would stutter, then close, WEIRD! Lowered the PCIe bus to 103MHz and that issue seems gone now, and windows feels peppier, is this possible? Im going to play some games now to see if it will lock up again :mad:
 
Hmmm... I dont think that fooling around with the PCIe bus will have any effect on the system. It's possible that your higher clock (105 and 110) was negatively impacting your GPU performance, due to being out of spec. Therefore moving it back down might have helped out...

The graphical hiccup (window closing thingy) seems to be indicative of a a problem with the GPU running so fast.

Lastly, I'm sorry, but I STILL havn't determined whether or not you've re-formatted windows... ;).
 
Arcygenical said:
Hmmm... I dont think that fooling around with the PCIe bus will have any effect on the system. It's possible that your higher clock (105 and 110) was negatively impacting your GPU performance, due to being out of spec. Therefore moving it back down might have helped out...

The graphical hiccup (window closing thingy) seems to be indicative of a a problem with the GPU running so fast.

Lastly, I'm sorry, but I STILL havn't determined whether or not you've re-formatted windows... ;).
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I formated 6 days ago. This is a clean OS
 
Ehhh... In that case I seriously think it's a BIOS or a board issue.

in the BIOS can you load optimized defaults?

if that doesn't help, RMA tha board :(.
 
Thanks for you help, but its not the boards fualt, and I HATE TO JUMP ON RMA's. Im almost possitive that if I feed my CPU more Volts, it might fix it, but I really dont want to feed the cpu more then 1.40Volts.
 
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