Ak by som kartu mal, tak uz davno by som skusil flash. No, skusim pozriet ine fora ci to vyriesilo ten problem ... .

Edit :

takze
I got it figured out.
It seams that since the cards memory runs at 350MHz (700) that during operation it sometimes gets detected wrong as 700MHz (1400) and of course shuts off.
There is an option in Riva Tuner that makes memory clock rates get detected in diferent ways. Perhaps Unwinder may explain the details around it.
Anyway I had the same problem, and managed to fix it by playing with those options and memory clocks (a bit of downclock). Card is now running at 350/550 (can do more, but I haven`t had time to test further) with all pixel and vertex pipelines enabled, and scores about 8900 in 3dmark03.
Volny preklad : vyzera to tak, ze karta bezi na 350 mhz (700)a pocas chodu sa niekedy chybne nastavi ako 700 ( 1400 ) a samozrejeme sa vypne.
Je nastavenie v Riva Tuneri, kt. nanuti karte nastavovat freq. inou cestou. Akokolvek, ja som mal rovnaky problem a vyriesil som ho tym, ze som sa hral s tymito nastaveniami. ( trosku podtaktoval ). Karta teraz bezi na 350/550 ( moze aj viac, ale nemal som cas ) zo vs. pixel a vrtex pipeli. zapnutymi, a dava cca 8900 bodov v 3dmarku 03 jke.
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Taktiez som aj nasiel, ze to robi castejsie pri zapnutom AA/AF, tak ak ju niekto mate po ruke, skuste to. RAd by som uz konecne kupil novy kartu a kvoli tymto drbovinam cakam uz skoro 2 tyzdne.