Overclocking 7800GTX

[Diagrafeas]

I own an ASUS Extreme N7800GTX Video Card.
I have replaced the stock cooling with an Artic Cooling NVidia Silencer 5 Revision 3.

Stock Speed Temperatures Idle
At stock speeds (430MHz Core, 1200MHz Memory) when idle the temperatures are Core-38 deg. Celsius and Memory-29 deg. Celsius.The core temperature is taken for inside the drivers page.As far as the memory is concerned i have installed a thermal module from Thermaltake Harcano 13 at the back side memory of the card.Motherboard temperature is 29 deg. Celsius.

Stock Speed Temperatures 3DMark
After running 3DMark 2005/2006 for about 20 minutes the temeratures are Core-58 deg. Celsius and Memory-36 deg. Celsius.(It doesn't take more than 5 minutes for these temperatures to be reached).Motherboard temperature is 31 deg. Celsius.I constanty observe the core temperature during 3DMark on a second TV Screen because when the tests stop the temperature may fall as much as 5 degrees until reentering desktop.

Overclocking from inside NVidia Drivers Page
I tried overclocking the core and the maximun it can reach is 526MHz.The test is passed every time according to the drivers page.(After 100 consecutive retries i have no problems).3DMark runs without any errors.The temperature reaches 62 deg. Celsius.

Memory Overclocking
I don't know how much i should overclock the memory because after a number of retries the test fails(Driver Test).At 1350MHz it may fail 1 out of 100 retries.I have run 3DMark at 526/1400 without any problems but i am afraid for the memory modules.The temperature they reach is 38 deg. Celsius.

That is 4 deg. Celsius for the core and 2 deg. Celsius for the memory.

The question is,how can i be sure what memory speed is safe?
Apart from 3DMark is there another program that i could try?
What speeds havee you reached?

 

[letdown427]

That was so hard to read.

Introduce some paragraphs and general space, and I'm sure more people will post if they know. I don't know. Sorry. Temps seem fine though. IN all honesty,

I'm not even entirely sure what the question was.

Surely you know the mems speed as you just set it, so why would you need a program to tell you it? = confusion on my part.

 

[2Dead]

i think he's looking for a program that will stress his gpu memory so he knows if the speeds he sets are ok.

Have you tried ATI Tool? You can still scan for artifacts and run it in 3d view to get your max temeratures, if ur concerned about that, on NV cards. I hit 74c on my 7800gt in 3dview before changing the cooler to NV Silencer 5 Rev 3 and now it hits 64. I would think that if your speeds aren't stable, you will fail the artifact scan. You can check the log later to see if you failed if you leave it going for a couple of hours or overnight.

 

[Diagrafeas]

Where could I download ATI Tool?Thank you for your help.

OK, found it.Is 0.0.25 beta 10 the last version?

 

[2Dead]

I believe 0.0.25 beta 10 is the latest. I've been using 24 but maybe i should use the updated software.

And can you let me know what you are getting for your avg fps in 3d window view? I'm getting 464 in the default window with my oc'd 7800gt and want to see what a gtx will do.

 

[Diagrafeas]

I'm getting 472fps at 430MHz(stock core) and 500fps at 499.5MHz(OC Core).This is the max frequency the core can reach without artifacts.I didn't overclock the memory yet.This is with High Quality settings.If i set it to High Performance i get 491fps(stock core) and 520fps(OC Core).

 

[Megatomic]

Try RTHDRIBL to test the stability of your video card. I've yet to see a card pass RTHDRIBL and fail in a video game.