i had to look back at our chat, just because it always sounds funny when people say something " worked " before.

The computer also booted successfully before the recap

Click to expand...

" I used the Q840 for a few days last year and it worked great. Recognized all the drives, RAM, everything. The last time I booted it, I recall the sound was getting pretty weak. So I'm thinking positive!"

So in regards to the timeline, just because something vintage powered up and worked a year ago, absolutely does not mean that its going to work now.

If someone sends me an 840av to re-cap and the only problem, (at that every moment) is just scratchy sound but everything else works, then

a recap will most likely bring everything back.

Now with guys like the op of the thread when he sent it to me,  the thing was completely dead... so the fact that everything now is back up and working... just no scsi, is kind of a good thing.

and in your case even though the scsi use to work a year ago,  doesn't now... but you said the sound is working. so that is a good thing.

if you look at this picture you will see these 2 little stinkers and because of gravity, the the goo spills out and runs stright down rotting up the scsi chip legs.



one thing you could try is maybe going around the pins of SCSI chip one more time with a tooth brush

and some 91 % ipa,  and maybe try to squirt some IPA somehow under the SCSI IC.

the 840av is a serious problem.

so anyone with an 840av in storage , or one that works now and hasn't been re-capped...  

i highly suggest you get on that.

Even if at the least you pull the MB, remove the caps... wash all the goo off... and dry the main board with an air compressor. ( for now )