Reply 20 of 53, by Imperious
The later AMD AGP cards, such as HD3850 AGP, possibly also HD4670 and HD4650 didn't have any heatsink on the Pcie to Agp bridge chip.
This caused intermittent black screens especially in hot climates.
The solution was to fit a Heatsink on it. Not easy as it has a non flat top to it. I simply used some sikkaflex to secure it in position with some
heatsink compound between the heatsink and bridge chip. never had a black screen or bsod or reboot again, and with some mods got 890mhz
out of it. Mine was/is a HD3850. I'm tempted to rebuild my old system with the Pentium M just to do some benchmarks, maybe later this Year.
Atari 2600, TI994a, Vic20, c64, ZX Spectrum 128, Amstrad CPC464, Atari 65XE, Commodore Plus/4, Amiga 500
PC's from XT 8088, 486, Pentium MMX, K6, Athlon, P3, P4, 775, to current Ryzen 5600x.