Simviation Forum - NVIDIA overclocking 5950 ultra

Jan 11^th, 2004 at 9:22pm

Daz Offline
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i have recently purchased my new XFX nvidia FX5950 ultra http://prices.cclcomputers.co.uk/specs/VGA/XFX/5950/spec.htm and in the process of overlcocking it ( shh i know what im doing etc ) but instead of manualy overclocking it i use the coolbits program with the drivers which has a handy Auto detect button....from what i can gather from this the drivers actauly overclock the card for you

lets see the stock of the card is 475 mhz clock and 950 mhz memory clock << pretty darn impressive but check out the overclocking i have got after testing with the auto detect button:

core clock up to 600 MHZ!!!!
memory clock to an unbelievable 1.12 ghz!!!!

i have a total of 7 fans in my PC excluding CPU fan and GPU fan so im sure they can handle the heat (2 extraction fans in the pci slots below the card and a further 2 blowing over the card aswell as the gpu fan. i also have 2 blowing from the bottom at the front of my case and one from the case side near this beast.

am i being misleaded by this auto detect or is it a good thing? i am worried to put the card under load at them speeds incase i damage it but if it handles it fine then rock on!!!!

anyone else had experience with this?

thanx , daz

AMD athlon XP2800+ @2.34ghz&&Epox 8RDA3G 400 fsb, 8x AGP&&1024MB DDR400 PC3200&&XFX 256MB FX5950 Ultra (oc 525/1.04)&&40 gig maxtor 7200rpm&&80 gig seagate baracuda 7200rpm&&

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Reply #1 - Jan 13^th, 2004 at 12:20pm

4_Series_Scania Offline
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Daz,

Beware mate, I've found if you O/Clock an FX card, the cooling fan has a habit of turning itself off! - Mine did!

I'd strongly advise you remove the Nvidia GPU cooler and replace it with one powered from your pc's PSU directly (which I have) then o'clock at will!

Posting drivel here since Jan 31st, 2002. - That long!

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Reply #2 - Jan 13^th, 2004 at 6:23pm

swanny338 Offline
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Switched from PC to Mac
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or get a liquid cooling system with a CPU and GPU block, that would be perfect, of course they take more work to take care of than air

Still have a nice PC but I just switched to a hella nice mac

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Reply #3 - Jan 13^th, 2004 at 8:13pm

Daz Offline
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yeah it was slightly unstable at them speeds so i cut her back down to 575 mhz core and 1.05 ghz mem clock

runs anything at absolute full settings its amazing

AMD athlon XP2800+ @2.34ghz&&Epox 8RDA3G 400 fsb, 8x AGP&&1024MB DDR400 PC3200&&XFX 256MB FX5950 Ultra (oc 525/1.04)&&40 gig maxtor 7200rpm&&80 gig seagate baracuda 7200rpm&&

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Reply #4 - Jan 22^nd, 2004 at 12:24pm

congo Offline
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Make BIOS your Friend
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CFS3 ???

Mainboard: Asus P5K-Premium, CPU=Intel E6850 @ x8x450fsb 3.6ghz, RAM: 4gb PC8500 Team Dark, Video: NV8800GT, HDD: 2x1Tb Samsung F3 RAID-0 + 1Tb F3, PSU: Antec 550 Basiq, OS: Win7x64, Display: 24" WS LCD

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Reply #5 - Jan 23^rd, 2004 at 8:36pm

Daz Offline
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Leeds, UK

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i havent got cfs3

AMD athlon XP2800+ @2.34ghz&&Epox 8RDA3G 400 fsb, 8x AGP&&1024MB DDR400 PC3200&&XFX 256MB FX5950 Ultra (oc 525/1.04)&&40 gig maxtor 7200rpm&&80 gig seagate baracuda 7200rpm&&

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Reply #6 - Jan 23^rd, 2004 at 10:35pm

congo Offline
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Make BIOS your Friend
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Don't worry, there are plenty of them lying around. Grin

Mainboard: Asus P5K-Premium, CPU=Intel E6850 @ x8x450fsb 3.6ghz, RAM: 4gb PC8500 Team Dark, Video: NV8800GT, HDD: 2x1Tb Samsung F3 RAID-0 + 1Tb F3, PSU: Antec 550 Basiq, OS: Win7x64, Display: 24" WS LCD

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Reply #7 - Jan 28^th, 2004 at 6:19pm

deadnight Offline
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Georgia, USA

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DON"T DO IT!!!!

Don't trust that 'auto detect' button. if you want to fry your card go ahead. I suggest raising the clock speeds by 5 or 10 at a time.. run 3dmark03 and see if it runs ok.. raise a little again.. run 3dmark... and keep doing that until you start to get worse performance or see glitches on the screen. Then back it down a little and leave it their.

ASUS P4C800 Deluxe &&Geforce FX5900 Ultra(256 MB)&&1 gig DDR PC3200 RAM&&Pentium 4, 3.0 GHZ, 800 mhz FSB&&Coolermaster 550 watt power supply&&----------------------------&&<-3dmark03 =

6535

->

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