sometimes they are very hard to remove, I'd use a heat gun (just a few seconds) or a hair drier in order to soften the plastic and make the removal a little easier.
Also, do you really need to remove the knob to apply D5?
Bummer! So finally a ROM and HPV card arrived (both untested), same as symptoms as before. :cry:
I'll PM LaPorta in order to test with another motherboard.
HDI-45 to another monitor via a VGA adapter (which used to work and displayed video many times before the failure)
There´s two versions of the HPV card as I understand, both PDS, sometimes called PowerMac High Performance Video:
-820-0522-A, (2MB VRAM frame buffer), came with the 7100, but fits...
No corrosion at all, I recapped the motherboard and the HPV anyway.
Cleaned in the ultrasonic.
Tested with known good RAM from my Centris 650.
Battery reads 3.61 volts.
Tried with no cache card
Tried with several NuBus video cards
Still no video from the HPV, HDI-45 or the NuBus Cards!
I even...
This got weirder... so the machine had 8.5 installed, the CD's I booted from were 8.1 and 9.0.4, no text with those. But I was playing with a new RaSCSI which had a volume with a 7.5 version, booted from that version and text was shown!!! Everything looked ok. I was happy, then upgraded to 7.6...
Hi guys!
I got an 8100/100 from eBay, seller didn't package adequately, brittle ABS plastics and we know the results:
It didn't show any video in either the HDI-45 connector nor the HPV card, it did the startup bong tough.
Cleaned/redone thermal paste on the CPU and that fixed the video...