Safe OC limit for 4850

[AlienIsGOD]

Hi i am wondering what a good safe limit for OC ing my Sapphire 4850. i have stock cooling on it and am a bit cautious when OC ing. Any advice is appreciated. And i prefer not to use Overdrive if possible.

[spixel]

send me your pc ill find out , promise ill give it back

but on a serious note every card is different youll know when you reach limit. gfx cards are different than cpus you cant fuck things up by increasing voltage unless you modify the bios . could be wrong cause i know noting tbh but oh well :laugh:

[vrobec]

It depends on cooling and on PCB. Some cards have 3 phase power like Gainward Golden Sample. These could oc at 730-750MHz on core, and ~2300MHz on RAM.
My Gigabyte with factory equipped Zalman could fly at 735MHz - GPU, and 2300MHz DDR3.
I think every generic 4850 will do at least 675-700MHz on core.

Regards!

[mav2000]

I have a similar question. I did the whole overclockign thing with not much success. Lost a whole lot of time getting nowhere. I have a Xpertvision 4850, which is the same as the Palit non reference 4850. I am not able to overclock even a little bit. Am completly confused. how should I go about this. ATI tray tools just crashes to BSOD in Windows vista ultimate.

[Flyordie]

http://i32.photobucket.com/albums/d20/Flyordie07/HD4850OCMem.jpg

[JC316]

I have a similar question. I did the whole overclockign thing with not much success. Lost a whole lot of time getting nowhere. I have a Xpertvision 4850, which is the same as the Palit non reference 4850. I am not able to overclock even a little bit. Am completly confused. how should I go about this. ATI tray tools just crashes to BSOD in Windows vista ultimate.

Ati Tray tools never played well in Vista for me. Try AMD GPU Clock tool, thats what I always use in Vista.

[mav2000]

Ok will try amd gpu clock tool, and what do you use to benchmark?

[Laurijan]

There is no safe OC limit.. only stable OC limits.. MHz cant ruin your card only upping the voltage aka heat can do that

[phanbuey]

There is no safe OC limit.. only stable OC limits.. MHz cant ruin your card only upping the voltage aka heat can do that

took the words out of my... keyboard?


@ Alien... OC as far as you can - until you see artifacts, and then back down a few MHz at a time until the artifacts/ crashes go away. Crashing does not hurt a card, neither can artifacting - as is stated above only when the heat (100 ish C) and or voltage (if you soldered anything to the card) are above spec limits can damage occur.