So I've got one of the 4850X2 (2x512mb) from saphire, I also have one of the first 4850's (512mb) I think was from visiontek.
The 4850X2 runs alot cooler and is ALOT louder, I've been playing with the bios editor to try and get a better fan ramp for the X2.
The problems I've run into is that minimum duty cycle doesn't seem to work, so if I set my start temprature for the ramp too high then I have issues where the chip heats up right to when the fan kicks on, then I get a nasty sound of the fan spinning up and then spinning down, very annoying.
Even underload the X2 is only hitting 75c or so, while the single 4850 is doing 90-95c underload.
I think the fan speed lookup table would be the best way to handle the problem, but the one time I tried to load a lookup table based on I got a nasty blue screen on reboot (disabled crossfire, reflashed and I was okay).
Is there a trick to using the lookup table?
Also all testing was using RBE 1.22(although I have 1.23 now) and winflash 2.0.1.1
The 4850X2 runs alot cooler and is ALOT louder, I've been playing with the bios editor to try and get a better fan ramp for the X2.
The problems I've run into is that minimum duty cycle doesn't seem to work, so if I set my start temprature for the ramp too high then I have issues where the chip heats up right to when the fan kicks on, then I get a nasty sound of the fan spinning up and then spinning down, very annoying.
Even underload the X2 is only hitting 75c or so, while the single 4850 is doing 90-95c underload.
I think the fan speed lookup table would be the best way to handle the problem, but the one time I tried to load a lookup table based on I got a nasty blue screen on reboot (disabled crossfire, reflashed and I was okay).
Is there a trick to using the lookup table?
Also all testing was using RBE 1.22(although I have 1.23 now) and winflash 2.0.1.1