Good OC guide for G400 Max

[Top_Cat]

I was wondering if there was a good detailed guide to overclocking the G400 Max? I want to experiment with pushing mine a bit. What would be the best program and any recommended settings to try??

Thanks

Top Cat

[Top_Cat]

anyone know a good progrm to use then?

Top Cat

[Maggi]

http://www.murc.ws/Driver/Win9x/PD5/...ak_utility.exe

is most easily to use and you should start at 110%, increasing in 5% steps until your screen either gets garbled or the system completely locks up ...

CU,
Maggi

PS: Are you TopCat from 3D files ?

[Maggi]

found a few links 'round the corner that could help you getting started ...
http://forums.murc.ws/ubb/Forum5/HTML/008351.html http://forums.murc.ws/ubb/Forum5/HTML/007213.html http://forums.murc.ws/ubb/Forum5/HTML/005674.html

and finally the oldest one where it all started for me
http://forums.gagames.com/forums/For...ML/002346.html



Have Fun !
Maggi

[Top_Cat]

Thanks a lot. I will try the program now.

I might be the same Top Cat. I have posted about 3 threads on 3d files. Why?

Top Cat

[Maggi]

just curious ...

I always wonder whom I'm posting to and your handle looked familiar to me.

Welcome aboard !!!



Maggi

PS: Isn't it hilarious when you answer while someone other posts simultaneously ???
LOL

[Top_Cat]

Is there a version that works with Windows 2000 or Win ME? the tweak program says only 95/98 and I ran it on WinMe and it said unsupported and crashed out!

is there a better Tweak program to use? or is this the only one?

Thanks

Top Cat

[Sisyfos]

Are you by any chance using the 6.0 beta drivers?
They aren't supported by Matrox Tweak Utility.
In stead you can use MGA Tweak 1.20
It's not as easy to use though but search the MGA Tools forum for mgatweak and you're in for some reading.

[Maggi]

Hi Top_Cat,

I recommended it, because it is easiest to use and very reliant (Matrox should know how to OC their own cards).

Anyway, I wasn't aware that it wouldn't be working with PD6.x and therefore you should haed over to www.entechtaiwan.com and grab Powerstrip ...

Best and most variable OCer is MGA Tweak, as posted by Sisyfos.
It lets you use different dividers for the graphics and memory clock, so that you could squeeze even more MAX out of your card.

As a rule for easy determination which component failed:
white dots & false pixels => memory failing
lock up under heavy load without 'drop outs' => G400 chip failing

... and keep the reset button in reach ...

Cheers,
Maggi

[Top_Cat]

Thanks for the link will download MGA Tweak 1.20 now
Maggi any tips on what I should set my G400 Max too? just as a rough outline then I will just tweak them a bit more to see what I can get

Thanks

Top Cat

[Maggi]

TopCat,

increase the main PLL in 5 MHz steps until you see one of the above mentioned glitches.
Then depending on which part failed (G400 or memory) do some calculations and change the dividers to enlarge or shrink the gap between MClk & GCLk.

Example:

PLL = 400MHz
MClk divider 2 = 200MHz memory clock
GClk divider 2.5 = 160MHz G400 clock
> output all clean & stable

PLL = 420MHz
MClk divider 2 = 210MHz memory clock
GClk divider 2.5 = 168MHz G400 clock
> output has occasional false pixels > mem too high

PLL = 504MHz
MClk divider 2.5 = 202MHz memory clock
GClk divider 3 = 168MHz G400 clock
> same GClk speed while having your mem safe

or if the output at 420/210/168 would lockup > GClk too high

PLL = 324MHz
MClk divider 1.5 = 216MHz memory clock
GClk divider 2 = 162MHz G400 clock
> safe G400 chip while upping your mem

I think you know get my idea ...

Report back how high you could get it, ok ?

Cheers,
Maggi

[getmatrox]

Top_Cat,

The 5.41 drivers work fine in ME.