hello.

on this page is revieved my exact graphics card
http://www.insidehw.com/Reviews/Graphics-cards/PEAK-Radeon-HD-3850-HD-3870/Page-2.html where is clocked to 850mhz

My problem is that i can only overclock gpu to 796 mhz.

I have tried oc with rivatuner which works, and autotune which also gives me 796 mhz.

i have tried swithing bios to sapphire, even hardmoding (bios overclock)but nothing helped me to reach 850

ati tray tools overclocking doesent work.

does anibody have suggestions??

my pc core duo 6420 - 2.13 ghz
motherboar gigabyte p35c-ds3r

2 gb 1066mhz ram

What problems are you expiriencing when you set GPU clock to 850MHz?
I'm the autor of the review and I used RivaTuner for overclocking as I always do.
I hope you are familiar that overclock abilities of GPU varies from chip to chip...
Anyway send me bios dump of your card so i can try to mod it...

yes i know it varies...but everybody says 3750 has big clock potential... and all peak reviewes get round 850...So I had to ask.

well i ve tried 850 830 810 but always the same result - when entering 3d app it freezes.

ok ill send you.

Thanx!

peak 3870 bios

peak 3870 bios

Ok, try with this bios, I hope it will help...
If not, you unfortunately got a weak overclocker...

here..

here....

ive tried it, it is voltmoded but it didnt help - the result whas the same 800 mhz max. Obviously my card is bad clocker

Thanx for the help!