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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...

Fixed, CR2 was shorted!

Love that SE/40 label! :cool:

One selling for $40: https://www.ebay.com/itm/354454994884?hash=item528729ffc4:g:-3gAAOSw0qFjm49y

Yup same here, please take my money Bolle!

What about using the AAUI connector instead?

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...

HPV is inserted, no NuBus cards, I saw no electrolytic leakage, will take hi-res pictures! Thanks for your help guys! ;)

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...

Hi uncle_chopstick, you don't need glue, just be careful not to break the tabs. Even when breaking one tab, there's no need for glue in my experience.

Start the computer, press Shift until a "disabled extensions" message appears, check if the arrow disappears.

Thanks for any help guys!

Fan doesn't even turn, does faint noises, like it's trying to rotate. Voltages: 0.038 volts instead of 12, 0 instead of 5, bad power supply? I don't think so! R19 and L3 were very hot (over 50C, 122F). CR3 was removed, tested bad. With CR3 removed the fan works and normal voltages are read...

OMG, you saved me!, I got another AAUI adapter because the 650 wasn't getting an IP address from the DHCP server. Even setting the IP addressing manually didn't work (couldn't ping the 650 from my LAN). It's been more than 20 years since I ever used an old Mac to browse the Internets! Thanks a...

Not yet, I already checked continuity from the ROM connector A&D lines to the GLUE & CPU, found no problems. I'm waiting for an ultrasonic cleaner to arrive.

can you boot from floppy, then try SCSI Probe to check if the Mac sees the HD?

Actually the first three times I got the simasimac screen for a few seconds, then it booted normally. But when I closed it and installed the back, no more clean boots, only the chime then simasimac screen, no matter how long I leave it running... :cry:

techknight, If I get no chime with the original ROM, but I do with the ROM-inator, what should I check? I get the following pattern: