Dan, Following up... it seems your CPU was bad, however we never tested it in my good machine. I didn't get a good look at your chips while we were tesing, but I was thinking it's possible the socket is flakey or there could have been some corrosion on the pins. Your chip might just need a little cleaning. Steve >________________________________ > From: danielkovacs <danielkovacs@xxxxxxxxxxxxxx> >To: torontocbm@xxxxxxxxxxxxx >Sent: Friday, December 2, 2011 11:39:30 AM >Subject: [torontocbm] Plus 4 > >Hi Everyone; > >If I bring my plus 4 with me, would someone be able to take >a look at it? It power up to a black screen. I don't have >any replacement ICs if it's one of the chips (I remember >someone saying it could be the TED). > >Dan > > > >