parece q da pra fazer em varias placas, mesmo as de memo mais frakinhas:
"Before you flash, check to see what brand of memory is on your card. Unless you have Samsung 2.2ns, 2.8ns, 3.0ns, or 3.3ns do not flash. If you have any of the above Samsung memory and your cards memory tops at say 330MHz, you should be OK to flash, as the 9800Pro BIOS slightly raises the voltage going to the memory, allowing for higher clocks. I also have a bios version for those who were unfortunate enough to have memory that cannot reach 340MHz. This BIOS will set the memory speed to 325MHz and will set the core speed the same which is 380MHz. You can download the modified bios right here."