700mhz wall on HD4850 is smashed.

[Jaystar]

The guide is a good one! Now I just have to wait for my new cooler to come

[gurusan]

Turned voltage down a tad to 1.45v load, 1.14v idle and now am at these clocks 100% stable

[Jaystar]

Holy cow gurusan. You should try over clocking the pci-e bus some. With that much raw computational power. I bet games would respond to the slightly wider bus.

[gurusan]

The PCI-E bus is at 120mhz. I've read that overclocking it too much can cause hard drive corruption? Not something I need as I have important stuff on here.

[Rattle]

I am not having any luck clocking these cards, i think I got a couple of duds, or i dont know what I am doing wrong....

i am happy with them at stock anyway.

[gurusan]

What have you tried? With the accelero s1 you should be able to do some nice clocking.

[Rattle]

i cant even OC much in overdrive without artifacts, i have tried different modded bios with 1.4v, made my own and tried a couple I got here, i got artifacts at 675/1050 with 1.4v, not sure the voltage was changed though. my temps are great mid 50's tops

[gurusan]

that's odd.

Don't know what to say really :/

[GAR]

gurusan, if i want to overclock with your bios, the one you moded, all i change is whatever thats at 720 to whatever i like??

[gurusan]

^ yes

[GAR]

^ yes

You think i can do 750mhz with 1.2v with your bios????

[gurusan]

You think i can do 750mhz with 1.2v with your bios????

Possibly. I couldn't but a few users here have been able to i believe.

[GAR]

I tried the vmod where you shade in the resistor, no luck for me, i dont think it worked, how much do i have to shade in?????

[gurusan]

do you have a dmm? you NEED a dmm to know what you are doing

[revogamer]

gurusan, with the 900Mhz overclock, is that thru bios editing only? for the voltage.

[gurusan]

no i did a pencil mod too

[Zucker2k]

Crysis benchmark on Vista x64 and E8400 @ 4.5Ghz ~ 3DMark'06 is 21540

[gurusan]

wow very nice.

Try Dx10 very high noaa noaf now please

[Zucker2k]

wow very nice.

Try Dx10 very high noaa noaf now please

Okay, will try that next....

[Zucker2k]

wow very nice.

Try Dx10 very high noaa noaf now please

Here you go....

[gurusan]

wow those are amazing results. Especially the 16x AA !!!!!

I've just ordered a q6600 + P5Q deluxe so we'll see if that helps me at all

[Zucker2k]

wow those are amazing results. Especially the 16x AA !!!!!

I've just ordered a q6600 + P5Q deluxe so we'll see if that helps me at all

I don't know what board you're moving from but the 2 x8 lanes on the P45 should help. The Q6600 should help a lot too. Now, I just have to find a way to get both my cards to 900mhz on the clocks.

[Caped Crusader]

by god, that's almost playable Crysis!!

[DemonEyez]

The PCI-E bus is at 120mhz. I've read that overclocking it too much can cause hard drive corruption? Not something I need as I have important stuff on here.

Because most onboard SATA controllers are connected to the PCIe bus, you're also overclocking the SATA bus. It differs from mobo to mobo, but on my DFI DK P35 for example, 115MHz is the max for the SATA bus. Go any higher and you get curruption, especially with Raid configs

[rocketr2]

Here you go....

gurusan: you score 30.74 on the same bench mark with only one card, just overclocked much more.