First post, by Scythifuge
Despite the (hopefully temporary) issue with my KDS CRT monitor, I hooked up my HP2065 and preceded to test out this 600Mhz P3 CPU I just bought from someone on Mercari.
There is no fan on this CPU - it has a massive heatsink. It has slots on the bottom of the heatsink that look like they can take screws, but they would have to go into screw holes on some sort of special mounts on certain types of mobos. It still slides in between the clips. When I turn on the PC, it gets past the Voodoo 5 bios and gets to the main bios screen. This is where the problem begins... Sometime between the RAM counting and getting to the Windows 9x boot logo, the system locks up. It is random when it occurs - sometimes it happens halfway through the RAM counting, before recognizing optical drives, right before the option to boot from hard drive or cd-rom drive, or when the Windows 98 boot logo appears (often with a black bar going across the logo.)
I can't reach jumpers to clear cmos, but I was able to pop the coin battery and pop it back in. From everything that I read, this CPU should work and may be the best CPU I can get for this mobo (rev. 1.04) without slotkets or mods. It of course is possible that the CPU is faulty. Perhaps it is heat related as there is no fan (my old 450 didn't have a fan, but my 550 has a tiny little fan on a much smaller heatsink.) The heatsink and plastic shell on the CPU did feel rather warm when I pulled it out and put my 550 back in. Putting the 550 back in allowed me to get back into windows (and the screen looks like CRAP with this HP unless I set the resolution to 1600x1200 which is way too high for the nostalgia factor of 640x480 to 1024x768, so fixing this KDS and/or finding a couple of spare 19" CRTs is a MUST; I am concerned that this issue will happen with any LCD I get for these retro machines, AND there is weird graphical "noise on the letters and numbers during post which did not occur with the KDS prior to what I assume were caps bulging or blowing.)
The idea was to make the best PC I could out of this P2B mobo. I even put 512mb of RAM in it, the day that the KDS wigged out. I am having very bad luck with just about everything PC related, I'm not even joking. Before I went back to actual hardware, I couldn't make a stable PC using 86box and Windows 98 SE would always have crackling noises and the developers couldn't tell me why it was happening, so being cursed is the only realistic possibility, at this point.
Any ideas with this CPU? Heat? Something else? It is weird that it would be detected but then lock up within seconds or minutes.