Archived from groups: alt.comp.periphs.videocards.nvidia (
More info?)
On Sun, 18 Apr 2004 20:25:44 +0100, "paul whitehead"
<paulj.whitehead@ntlworld.com> wrote:
>I have an Inno 5900xt. At the moment I have OC it to 425/715. However, when
>I ran 'autodetect' in coolbits, it suggested settings of 453/808. It also
>knocked my refresh rate down from 75hz to 60hz.
>
>Are the speeds suggested by coolbits too high?
>
>Does anyone have experience of overclocking this type of card who can
>suggest some ceiling speeds for the card?
>
>Should I just keeping notching the speed up until it stops working and then
>revert to the last functional settings?
>
>Any advice would be appreciated as I have a nagging feeling that I'm under
>using the card.
>
>Thanks in advance
>
>Paul
>
>specs
>
>Inno Geforce FX5900 XT
>P4 2.4
>1gb ddr 266 memory
>audigy sound card
>
I am not an experienced o/clocker of any sort of hardware but with
the few graphics cards I have messed with (I say "messed with" for a
reason too as it's a hit and miss affair OR - At You Own Risk),, I
have learned that about 20% of the standard speed is about as far as
you would want to go "tops".. Some people go a little further but
generally I would go a little less than it.. Remember too,, when you
o/c a graphics card, you may get good results for a while then pooof,
it turns to smoke halfway throught a game, so to properly o/c it you
need to start off at a safe level of say 8 - 10% more than standard
and SLOWLY work up towards the 20% mark. This may take you a week to
find the limit or whether 20% is even safely attainable.. Perhaps 20%
is too high as a unoversal indicator,, perhaps not. Your guess..!!! Be
Safe..!!!
It isn't just a "set and forget" thing.. You should try 10% first. Run
it for a good few hours and check whether the games give any signs of
too much o/c'ing, like...
1. Actually slowing down because of excess heat generated, causing
things to grind to a halt as time goes on.
2. Graphics tearing. Your games images may look like a cracked or
broken mirror where the image actually comes apart. Very Bad sign..!!!
3. White dots appearing in a straight line where surfaces meet or
where one graphics meets another in the image. This may also be a less
than evil sign caused by many other things too, like drivers..
4. A kind of shimmering or miraging affect which makes the image seem
unstable - Because, that's what it will be - unstable..!!!
Use the nose too. If you start to notice a hot silicon smell as time
goes on then remember that something is causing it...
Now - How big-a-step to move up in... Good question..!!!
With so many mem/core speeds around and no real "known" way to try
out, I would first work out your 20% utter maximum e.g
500 (std) Mhz times 20% = 100.. That's 500 + 100 = 600 Mhz max..
Try starting at about 540 to 550Mhz then move up in say 10Mhz steps.
In other words, divide the adjustments from the 10% start point, to
the max point, into about 5 or 6 steps. The more the better, but, the
more, the longer it takes...
Other peopled may offer you more insight than what I can as I have
never dealth with speeds over about 600Mhz, but I think the method is
safe...
Good Luck... And - Remember "Slowly but Surely"...
Facebook
Twitter
Instagram