Maximum "recommended" PCI-E Frequency?

[Smartidiot89]

Hello! Currently clocking my 920(locked multiplier meh).

So atleast with air my hardlimit seems to be 3660mhz after that I am not OCCT/LinX stable anymore.

With CPU State "P0" I very early hit a HTT wall at 247, but changing this to "P1" changed things quite abit. Still have P2/P3 to test.

My NB is also locked so I am independent on HTT clocking, and with "P1" state I hit into another wall at 290 and thaught I'd do something I've never ever done before, change the PCI-E frequency.

But I've heard changing this too much isn't good in the long run for a 24/7 stable system? Very should I put my limitations? My system/current stable clock is in sign.

I AM WELL AWARE THIS COULD BE CPU LIMITATIONS SO DON'T COMMENT ON THAT!

[Dumo]

Raising pci-e freq will improve your video card loading textures (if you use pci-e vid.card)
It linked to sata bus, sometimes if you increase pci-e freq it will affect your sata hard drive even corrupted it.
Imho, <120 should be fine and it won't damage your vid. card

[Smartidiot89]

Raising pci-e freq will improve your video card loading textures (if you use pci-e vid.card)
It linked to sata bus, sometimes if you increase pci-e freq it will affect your sata hard drive even corrupted it.
Imho, <120 should be fine and it won't damage your vid. card

Ok! I'll try changing the PCI-E and see what happens

[Dumo]

I think it won't help your cpu oc.

[Smartidiot89]

It didn't help at all, was worth a shot ^^ Now its time to test the other 2 P-States

[rein]

is even changing the pci-e speeds needed? i just set mine at 101.

[Raiderman]

What are "cpu states" I have seen this commented before in Brothers DFI poll. Is that a setting for DFI boards? I looked for those cpu states in the asus bios to no avail.

[roofsniper]

What are "cpu states" I have seen this commented before in Brothers DFI poll. Is that a setting for DFI boards? I looked for those cpu states in the asus bios to no avail.

cpu states im assuming are the different multiplier settings.

[EniGmA1987]

The Maximum "recommended" is of course 100 or 101

I used to OC my PCI-E, but that was before I had a lot of sata drives loaded with tons of info. Now I leave it turned down because I dont want to lose my data, but before that I used to run my 7800GTX at 150MHz PCI-E speed.

I havent heard of changing the PCI-E helping overclocks on the CPU lately, but back in the 939 days there were a few boards (mostly DFI) that OCed better when you set the PCI-E frequency to a certain number. Some boards really liked 113. Others 109, etc. But again, I havent heard anything like that affecting OCs in these later times.

[gOtVoltage]

The Maximum "recommended" is of course 100 or 101

I used to OC my PCI-E, but that was before I had a lot of sata drives loaded with tons of info. Now I leave it turned down because I dont want to lose my data, but before that I used to run my 7800GTX at 150MHz PCI-E speed.

I havent heard of changing the PCI-E helping overclocks on the CPU lately, but back in the 939 days there were a few boards (mostly DFI) that OCed better when you set the PCI-E frequency to a certain number. Some boards really liked 113. Others 109, etc. But again, I havent heard anything like that affecting OCs in these later times.

Ive lost data on some Mobos while using Sata's,, even @110 Pci-E.

When at all i will use 100 or 101 if the Mobo needs to be locked. Most auto lock anyway.

If anything raise the PCI-E CORE volts a little at a time ,, this helps the Ram slots and CPU talk to NBchipset. It brings stability when pushing things even at High or low HT.

Also some systems like Ganged better than Unganged and Timing is a factor of Brand Ram you use.

It all makes sense to tweak your Voltages some Once you hit a wall.

Well thats my 2bits worth

[the pharaoh]

I can only think that the OP when saying "CPU State" is referring to the "AMD CPU Stepping" BIOS entry on the DFI 790FXB.

It's a cryptic setting with no explanations I have found so far for what it is/does but users on DFIClub forums said using P1 or P2 yielded better OC results than using P0 (see this thread - http://www.csd.dficlub.org/forum/showthread.php?t=9826).

I have only used P0 on my board...time for some P1 action when I get home today I suppose

[Smartidiot89]

I can only think that the OP when saying "CPU State" is referring to the "AMD CPU Stepping" BIOS entry on the DFI 790FXB.

It's a cryptic setting with no explanations I have found so far for what it is/does but users on DFIClub forums said using P1 or P2 yielded better OC results than using P0 (see this thread - http://www.csd.dficlub.org/forum/showthread.php?t=9826).

I have only used P0 on my board...time for some P1 action when I get home today I suppose

Worked great for me tested all 4 of them now

P0 was worthless, wouldn't go stable over 246 HTT.
P1, Stable all the way to 289HTT (with lowered multiplier).
P2/P3, both yielded same results, but was slightly less table then P1.

My clock is in sign, and my CPU really has a reached a its limit. Anything above 3660mhz = unstable, this clock is stable in LinX for 2 hours, will run a full test 12h+ this week.

[G0ldBr1ck]

Was trying to find the best PCI-E freq. for 3dmark06 on my old Giga DQ6 board a while back and only discovered that anything over 103 began lowering my score by about 10pts for every 1mhz OC not sure if it was the board or what but I ended up at 98mhz to get best score...........can anyone explain why?

[SNiiPE_DoGG]

I 've killed a nearly brand new sata drive in 3 months running PCI-E @ 115. I wouldnt touch it over 105 personally

[Newblar]

100/101
all you need on a 24/7 basis

[Shrekogre]

i ever boot into windows @ 200mhz. i didn't set it on purpose though. everything ran fine except my gfx ain't detected

[chew*]

Reference manta had P and N memory tweaks and P states, good stuff

[Dumo]

Bench with IDE hd, 24/7 with sata

[chew*]

Bench with IDE hd, 24/7 with sata

Or very oldschool 36gig raptor, virtually indestructible for a sata drive......on it's 30th bench rig by now

[roofsniper]

according to AOD my pcie frequency is 13mhz and everytime i try to change it it reverts back to 13mhz. im guessing its just a bug.

[3Deye]

People who increased the PCI-E frequency noticed any change in overall performance?

[Particle]

People who increased the PCI-E frequency noticed any change in overall performance?

This is extremely unlikely to impact your system in any meaningful way. IIRC, the jump from PCIe 1.0 x8 to PCIe 2.0 x16 for video cards is small enough to be lost in the benchmarking fuzz as it is.

[EniGmA1987]

My record was 150MHz, so 50% overclock. It gained me a whole 200 points in 3dmark05...Pointless and dangerours to sata hard drives. Just dont mess with it.