Overclocking Sapphire x1900GT

[Vaxus]

Hi, I just bought a Sapphire x1900GT and I overclocked the core to 540 and the memory to 837. Is it possible to clock the memory that much? I've read forums all over the net and I haven't seen anyone clock the memory that high. But it seems to run stable. Any ideas?

Thanks

/Vax

[overclocker]

some times you get a great card like me i bot 2 x1600xts and 1 i can overclock the mem to 835mhz the other 1 i can only over clock the mem to 750mhz so its all about if u get a good 1 or not.

[Sly.P.I.]

I can't with mine!
Core to 595
mem stays at default or I get blocky screen!
Any help??

[Ketxxx]

memory timings for the card may be quite aggressive, hence why you cant clock the memory for crap. use rabit to grab the timings and compare with another gt bios.

[tofu]

I can't with mine!
Core to 595
mem stays at default or I get blocky screen!
Any help??

I think your X1900GT can be the RV570 hence it has neither XL or PRO identifications.

Memory clocking works well in ATITool, I clocked my x1900GT mem up to 702MHz no artifacts.

[technicks]

I am also happy with mine. I hope the second one i get i a few weeks oc's as good as this one.
Never had any artifact probs.
http://img.techpowerup.org/061004/Capture010.jpg

[Sly.P.I.]

I think your X1900GT can be the RV570 hence it has neither XL or PRO identifications.

Memory clocking works well in ATITool, I clocked my x1900GT mem up to 702MHz no artifacts.

In AtiTool it says R580LE
I can't budge the mem speed up at all without the screen blocking up and system crash!
Thanks again, Steve

[SPHERE]

i can clock my x1900gt to 845 mem/590 core
it IS setting the clocks cause i notice performance scaling :)

if you want more out of your core up the voltage to xt stock or above :) (xt stock = 1.45 in rabit or 1.425 in ati tool)

btw ket that was actual mhz not ddr mhz he is clocking his mem quite good :)

I think your X1900GT can be the RV570 hence it has neither XL or PRO identifications. i used to have that problem where i couldn't oc the mem even a mhz i fixed it by changing the ati tool version/settings /driver ver something rather i dont remember lol

[Sly.P.I.]

It transpires that mine is a ver2 and there is no voltage adjustment in atitool for me!
Is it poss to change mem voltage too?
Any news on my unlock tofu?

[Sly.P.I.]

Ok, I ditched atitool for now and installed ati tray tools
now I can run gpu@574 and mem@830
No voltage options though?
I hope Tofu will get back to me about my bios!