GTX 480 clocking

SeraphX · 30 Jan 2013 at 12:42

Hey there Mr 8 Pack

I'm sure you're familiar with this card from many moons ago lolol

Anyways, I want to overclock mine a little bit more.

It's an Asus GTX480 with voltage tweak according to the box, Currently under water with a copper plexi EK full cover waterblock.
It's driven by a D5 pump going through a Black ICE 240 rad with 2 GT-AP15's 1850rpm pushing.

So far I've managed (stable in skyrim) 900 on the core and 1900 on the memory.
Volts are at 1.1v

Temps are usually between 45c and 50c in game, (I'm avoiding furmark for obvious reasons)

Ideally i want to try and get to 1Ghz on the core and 2000mhz on the memory. have you got any idea's?

I changed the memory up to 2000 the other day and keep getting driver crashes at random moments, both in game and out of game.

Would it just be a case of upping the volts slightly and going from there? I'm a relative novice when it comes to graphics clocking and the heat and power consumption of a 480 scares me a little. everything in my waterloop is rated to run at no higher than 60c.

illuz · 30 Jan 2013 at 12:55

try 1.125 and run Heaven, keep an eye on your temps.

8 Pack · 30 Jan 2013 at 14:27

^^^ Correct!! Your temps are safe you can push the core volts a touch without problems. No more than 1.15 for 24/7 under water is recommended.

illuz · 30 Jan 2013 at 14:43

These cards still pack a punch for being just under 3 year old huh !

SeraphX · 30 Jan 2013 at 15:18

Tried 920 core and 1900 memory at 1.125 volts and it wouldn't have it, driver kept crashing.

Upped the volts to 1.130 and it seemed solid, temps were weird though, never went over 46c even under heaven benchmark.

Tried 920 core and 2000 memory at the above volts and just got artifacts half way through the bench, so I'm guessing the memory is maxed for now, going to see how far i can push on the core for now, max voltage that Afterburner will let me have is 1.138v so just downloading the new version to see if i get any more headroom.

8 Pack · 30 Jan 2013 at 15:26

Overclock the core first and find the max, then the memory second. Then you are sure what is failing.

Bluntwrapped · 31 Jan 2013 at 18:49

I have two of the same ASUS GTX480's cards under water. The memory overclocks horribly so I leave it alone. One will do 920Mhz and the other isn't happy at anything above 870Mhz. Both have been reflashed to unlock max volts 1.213V but it doesn't make a difference.

As 8 Pack said overclock the core first then the memory if you really want to.

I'd be tempted to leave it alone though, theres little gain to be had and a good chance of stability issues.