Recent content by reiddick

 I did try setting up a basic machine some time ago with the same result. I have two power supplies as I though that might be the problem earlier. I checked and cleaned the original one and it looked in good condition but I still got the same result from both of them. I think the fact that the...

Just thought I'd send an update to my situation with the Quadra 840AV. I decided to order some new tantalum caps and do the recapping again. The recapping went well and I reassembled the Quadra and turned it on. It chimed and booted up first time. It remained on and working for about ten...

Hi, As an update to my situation, I removed the RAM, ROM, heatsink and battery from the Q 840AV and cleaned the board again using alcohol and then put it into the washing machine. It came out looking very clean so I let it thoroughly dry out for a few days and reassembled it with a new battery...

Thanks, I'll give it a try over the weekend and I wont forget the thermal paste.

I think another clean would be a good idea as there may be residue under the new caps that got missed in the last clean. I'll try an alcohol wash with a brush that can get under the new caps followed by a dishwasher clean without soap. Would you leave the RAM on the board for cleaning and would...

Yes, I did clean it several times. It had a wash with water and I've been over it with Isopropial alcohol also. I agree they look bad but it was like that when it was booting well I think.

Thanks for the speedy reply. I've attached (hopefully) 3 pictures of the "bad" bits. I did come across this in another thread: As soon as the Mac is turned on, it runs a diagnostic test stored in ROM (Read Only Memory). Part of the Macintosh Operating System is in ROM as well. This part of the...

Hi I'm looking for help please with my Quadra 840AV that I've owned since approx 1996. I used this superb computer for my audio editing business, after upgrading from a IICi, for several years until I eventually acquired a 7100. I removed the Digidesign audio cards and used it as an office...