Overclocking the 1950 pro

[taylormsj]

Ive been testing this morning using riva tuner and atitool and have found the best / most stable overclock is

621 MHz and 1336 MHz from the factory 575 MHz and 1300 MHz.

I have read on other forums that the memory barely over clocks on these cards, but i have also seen other's 1950 Pro's at 1600 MHz. Is this because the card is of a higher quality and spec than mine or is there a trick or mod that alows this over clock?

Thanks

 

[hermeslyre]

Volt modding will up the voltage to the card allowing higher overclocks, I don't personally recommend however.

 

[Bradan]

dont think there is a vmod for the 1950 pro yet.

my card came with an upped cooler if that might help.

try bringing ur core clock down to 600 for now and try pushing memory to 1600.

 

[hermeslyre]

http://translate.google.com/transla...en/4704-how-ati-radeon-x1950-pro-voltmod.html

In German they do.

A new cooler might help, As Bradan said. Just remember that every Chip overclocks differently, You may have reached your limit.

 

[taylormsj]

Hmmmm its so annoying that my zalman wont fit

So bradan you think my memory wil go higher if i lower the core clock?

What aspect would give the most increase in fps core clock on mem clock?

 

[hermeslyre]

Hmmmm its so annoying that my zalman wont fit

So bradan you think my memory wil go higher if i lower the core clock?

What aspect would give the most increase in fps core clock on mem clock?

Core. The memory clock is the same as clock rate for RAM. Even a couple hundred mhz increase will show little improvement in game.

 

[taylormsj]

This is what i get when i return the core clock to its stock frequency and up the memory, they dont show as errors, but im thinking all the yellow bits are bad lol.

I think my card is limited in how much it will overclock , i guess i get what a payed for realy.

I appreciate the voltmod link but i dont think i wanna try that, just yet anyway

 

[taylormsj]

would i see better performance if i lowered my mem clock speed so i can get a higher core speed?

 

[hermeslyre]

Possibly, but I doubt you'd be able to go much higher than you already are. Give it a shot though, you never know.

BTW I don't recommend voltmodding at all, If something goes wrong you can kill your card, A risk that most would consider alittle foolish.

 

[Bradan]

are you using driver level overclocking?

and ill try benching with either/or and see what yields the most performance. on the other hand oc'ing the mem barely raises temps, and core raises it allot.

 

[taylormsj]

Whats driver level overclokcing ?

 

[PabloTeK]

Perhaps a new cooler would help? There's a good Zalman cooler or Arctic Accelero X2 for example. That would be best as the stock ATi coolers get very loud at high speed. Driver level is basically overclocking using the driver and not at firmware level where the rest of the system is generally overclocked.

 

[taylormsj]

I dont think heat is why my overclock isnt that big, considering its not getting hot enough to not operate, and it feels cooler than my northbridge. I already have the zalman vf 900 cu, it doesnt fit my card, the holes are in wrong positions.

 

[PabloTeK]

You must have a non-standard card as the Zalman will fit on the normal X1950 Pro, such as the slimmer Sapphire. Very odd situation this.

 

[taylormsj]

Yes i think the card is non standard as it isnt as long as other 1950 pro's and there are only 2 mouting holes for a heatsink aswell, which wont fit the zalman.

And i think i am using driver level overclocking, im doing it in rivatuner (still dont realy understand what driver level means) Would i be able to get a better overclock form flashing the bios? Is there any way of flashing the pro to an xt or is this a stupid question

 

[PabloTeK]

With that card I doubt it. If it's non-standard then flashing it could screw it up big time. That's driver level as you're doing it from software and not from the card's BIOS.