PCI-E frequencies---how safe is 110???

110mhz max imo.

It doesn't do anything either way so... no

I wouldn't recommend ever going above 125Mhz. With some older motherboards you need to raise PCI-Express frequency if you fail to get any display after raiseing FSB. This is down to the default 100Mhz frequency being unable to keep up with large increments of FSB, though I'll say again, only some motherboards require this.

I've never had an issue running mine at 119 on either of my Intel boards and my nf4 Lanparty. I didn't have a SATA issue above 108 on the MSI platinum board I have in my bro's rig.

You will be fine at 110. Just do not go above 125. I got a nice boost in gfx overclock with 110.

it's safe. 115MHz is pushing it though i think. i'm at 109MHz

I was talking to an evga rep that told me never to go past 125...on the first revision of my board I had it set to 125 but now it is set to the default 100

120 is the absolute max until S-ATA drives start failing.

Only do that if it requires it...if it doesn't give you a better overclock or GPU overclock, then just leave it at stock.

I heard there's a higher limit with ATI than Nvidia, but I dono how likely that is...probably due more to the mobo chipset.

PCI-E is on the southbridge though. are you guys saying this will help a video overclock work better, or it will help you OC your video card higher? in other words - if i left my g-card at its current mild OC and raise the PCI-E frequency, will there be any benefit?

Everytime I try to oc it, i get nothing.

i run mine at 120 to be able to run 4580 and my memory at 899mhz. My boar is one of those you gota up the pcie to keep upping the mhz of fsb if you run the memory above 1:1 ratio.

So is there any performance increase for increasing PCI-E speed to 110Mhz?

hmm, if Special K sees no improvement with his GTX, i doubt it will do anything for my little old card. i've never been a big video overclocker anyway.

Supposedly it will let you oc your gpu more. With mine, the next clock achieveable is 675, which is a hair out of range still.