Did some testing today with Vapochill LS evaporator mounted on AMD Non-Qualification Radeon HD 3870 reference board (see pics above). Unfortunately this RV670 is not very good overclocker and it can only do 830 MHz stock and 860 MHz with 100% fan-speed.
Tested with 3DMark05:
1,5v 1000 MHz ok
1,53v 1012 MHz ok
1,55v 1026 MHz ok
1,57v 1039 MHz ok
1,595v 1053 MHz crashed to GT3
1,6v crashes and problems
Notes:
Catalyst and Rivatuner reported that GPU temperature was 19 Celsius during tests and it didn't change even under load so it was probably lowest value RV670's thermal sensor can read. I also measured the temperature of PWM components under load with infrared thermal meter:
1,5v ~49 Celsius
1,6v ~70 Celsius
Looks like I only had screenshot @ 1026 MHz saved. Memory is not maxed out yet.. just tested GPU this time.
Originally Posted by Sampsa
Did some testing today with Vapochill LS evaporator mounted on AMD Non-Qualification Radeon HD 3870 reference board (see pics above). Unfortunately this RV670 is not very good overclocker and it can only do 830 MHz stock and 860 MHz with 100% fan-speed.
Reply With Quote
Bookmarks