Sorry your browser is not supported!

You are using an outdated browser that does not support modern web technologies, in order to use this site please update to a new browser.

Browsers supported include Chrome, FireFox, Safari, Opera, Internet Explorer 10+ or Microsoft Edge.

Geek Culture / Graphics card overclocking

Author
Message
General Reed
18
Years of Service
User Offline
Joined: 24th Feb 2006
Location:
Posted: 25th Nov 2007 15:41
Link
How much could i overclock my BFG 8800Gts 640mb OC550mhz to? It seems to be running at about 63c when i overclock the core to 580mhz.

CPU: AMD X2 6000+ 3.0ghz GFX: NVIDIA BFG Geforce 8800GTS 640MB OC-550mhz core RAM: 2048mb

Back to top
Profile PM Email Website
Samoz83
21
Years of Service
User Offline
Joined: 3rd May 2003
Location: Stealing Ians tea from his moon base
Posted: 25th Nov 2007 16:15
Link
is there any real point of overclocking a 8800?

www.firelightstudio.co.uk
Back to top
Profile PM
CattleRustler
Retired Moderator
21
Years of Service
User Offline
Joined: 8th Aug 2003
Location: case modding at overclock.net
Posted: 25th Nov 2007 16:54 Edited at: 25th Nov 2007 16:55
Link
it depends on your case cooling and if the card fan is setup correctly, and if they seated your heatsink correctly. theres no set rule or formula.

I just got a XFX 8800 GTS 320. It comes factory overclocked at

core clock 580
memory 900
shader 1512

this will over heat in almost all games. why? not because of the overclocking, but because nvidia's Auto Fan settings suck. I downloaded RivaTuner 2.06, and use it to adjust the fan speed (Duty Cycle %) with the changes in gpu temp.

0c-56c Fan 60% (default fan setting from nvidia driver)
56c-60c Fan 80% (general idle temp)
>60c Fan 100%

a lot of 8800 owners are having issues with the nvidia auto fan. in fact I uninstalled nTune as its useless in its current form.

a good site for info on overclocking and using RivaTuner
http://guru3d.com

My DBP plugins page is now hosted [href]here[/href]
Back to top
Profile PM
General Reed
18
Years of Service
User Offline
Joined: 24th Feb 2006
Location:
Posted: 25th Nov 2007 18:12 Edited at: 25th Nov 2007 18:16
Link
Quote: "is there any real point of overclocking a 8800?
"
- for crysis on very high, yes.
Thanks cattlerustler i will try this out

CPU: AMD X2 6000+ 3.0ghz GFX: NVIDIA BFG Geforce 8800GTS 640MB OC-550mhz core RAM: 2048mb

Back to top
Profile PM Email Website
CattleRustler
Retired Moderator
21
Years of Service
User Offline
Joined: 8th Aug 2003
Location: case modding at overclock.net
Posted: 25th Nov 2007 21:28
Link
np, dont fry your card.

My DBP plugins page is now hosted [href]here[/href]
Back to top
Profile PM
Lucifer
18
Years of Service
User Offline
Joined: 26th Dec 2005
Location:
Posted: 25th Nov 2007 22:01 Edited at: 26th Nov 2007 00:43
Link
Quote: "this will over heat in almost all games. why? not because of the overclocking, but because nvidia's Auto Fan settings suck. I downloaded RivaTuner 2.06, and use it to adjust the fan speed (Duty Cycle %) with the changes in gpu temp."


my games were starting to freeze and i had no idea why, even empire earth was starting to freeze, and then i read your posts where you were flaming the nvidia auto fan, and i downloaded the rivatuner software, and set my fan to 85%, now games dont freeze and i can play them without the card even getting to hot so thank you cattlerustler, please continue flaming nvidia auto fan!

it is ok to have the fan at 85% at all times right? will that damage the card or something?

Lord Voldemort needs no signature!
Back to top
Profile PM
CattleRustler
Retired Moderator
21
Years of Service
User Offline
Joined: 8th Aug 2003
Location: case modding at overclock.net
Posted: 26th Nov 2007 00:25 Edited at: 26th Nov 2007 00:33
Link
lol, youre welcome.

I think with 85% always you should be fine. The fan on the 8800 is rated for 50,000 hours @ 100% which equates to 5.7 years. I think it will be ok

I run mine at 80% as default, then 100 during gaming, which is only saturdays really, so it should be ok.

A good test is to download and install ATITool 0.27b. Run the 3d window and watch the gpu temps for 30 mins. Does it stay level after the initial upwards movement, or does it slowly creep up over time? This is important to test especially with 80% fan, you may just be delaying a crash instead of avoiding it. If you find 80% not sufficient after 30 mins you should test 90% or 100%. I found that ati tool stresses the gpu more than the games I have, but some of these newer games may be more harsh. You might also want to log your temperatures in riva during your games to see what they are like with 80% fan.

Do you have it set on 85% as a static value, or are you using the background monitor and gpu temp events? thats another potential disaster that I will spare you the story, unless you need to know

My DBP plugins page is now hosted [href]here[/href]
Back to top
Profile PM
Lucifer
18
Years of Service
User Offline
Joined: 26th Dec 2005
Location:
Posted: 26th Nov 2007 00:43
Link
Quote: "Do you have it set on 85% as a static value, or are you using the background monitor and gpu temp events? thats another potential disaster that I will spare you the story, unless you need to know "


i have no idea all i know is that i downloaded rivatuner, and set the fan to direct control and set it at 85%

Lord Voldemort needs no signature!
Back to top
Profile PM
CattleRustler
Retired Moderator
21
Years of Service
User Offline
Joined: 8th Aug 2003
Location: case modding at overclock.net
Posted: 26th Nov 2007 02:23 Edited at: 26th Nov 2007 02:27
Link
yeah. so it will always be 85% no matter gpu temp. thats ok for a test in atitool, but I suspect 85% wont cut it permanently and youll need to set up riva more or less how I did.

if you can, do the atitool test for 30 mins, and see if the gpu temp stays level over time, or slowly creeps upwards over time.

you should see something like:
idle temp -> drastic rise in first few mins -> plataue and hold at safe temp (80c ish)

if you see:
idle temp -> drastic rise -> plataue(Xc)->creep Xc+->creep Xc+->creep Xc+->

thats gonna be trouble.

As a baseline, my graph is like:
idle 60c-->start test 75-77c-->80c-----------------80c end test
you need to do it for like 30 mins, and make sure the ati tool is the only thing running and the 3d window has focus or it wont have the system hooked the way it needs, to stress it.

My DBP plugins page is now hosted [href]here[/href]
Back to top
Profile PM
Lucifer
18
Years of Service
User Offline
Joined: 26th Dec 2005
Location:
Posted: 26th Nov 2007 20:55
Link
i'll do that and see what happens

Lord Voldemort needs no signature!
Back to top
Profile PM
CattleRustler
Retired Moderator
21
Years of Service
User Offline
Joined: 8th Aug 2003
Location: case modding at overclock.net
Posted: 27th Nov 2007 01:17
Link
btw, when I say thirty mins, I mean start the test and watch the thing for at least 15 to be sure its not creeping, then let it run for the rest of the 30 mins. 8800 will go boom boom at around 92-95c.

My DBP plugins page is now hosted [href]here[/href]
Back to top
Profile PM
Back to top

Login to post a reply

Server time is: 2024-11-19 13:22:27
Your offset time is: 2024-11-19 13:22:27