> >Looks like a new box might be the solution. > It is more likely to be the height of the case stand-offs. > I found that this need to be very carefully set, otherwise > the I/O card > is not making proper contact with the socket. > I think you are definitely right about that. As the card is screwed to the back panel it pulls along the top edge which will try to lift the furthest end out of the socket. The stand-offs supporting the rear (keyboard socket) edge of the mainboard are both brass threaded things, whereas the one at the opposite end is just a nylon spacer that clips into the hole in the mainboard and is suspended in a keyhole shaped slot in the case side panel (it's a tower case). When I reassemble it all tonight I'll see if I can make some adjustments.
cheers, Ian. > -----Original Message----- > From: tony > Sent: 13 March 2002 16:05 > To: ql-users > Cc: tony > Subject: Re: [ql-users] Is there a Qdoctor in the house? > > > On Wed, 13 Mar 2002 at 12:20:55, wrote: > (ref: <H0000b5f122a3eda.1016022053.ln4p1327.ldn.swissbank.com@MHS>) > > >Last night I removed the Q40 completely from its case and > set it all up > >on the table. It ran all evening (about 3.5 hours) with not a flicker > >of interference on the monitor. Not even when I picked up the > >mainboard, or prodded (gently) the video RAM chips. This > suggests that > >when the mainboard is mounted in the case, with the I/O card screwed > >onto the back panel, the geometry of the case is putting the board > >under sufficient strain to move one or more chip pins in > their sockets > >enough to break connection. There were no metal objects trapped > >between the mainboard solder side and case. > > > >Looks like a new box might be the solution. > It is more likely to be the height of the case stand-offs. > I found that this need to be very carefully set, otherwise > the I/O card > is not making proper contact with the socket. > > -- > QBBS (QL fido BBS 2:252/67) +44(0)1442-828255 > tony@<surname>,demon.co.uk http://www.firshman.demon.co.uk > Voice: +44(0)1442-828254 Fax: +44(0)1442-828255 > TF Services, 29 Longfield Road, TRING, Herts, HP23 4DG > Visit our website at http://www.ubswarburg.com This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. E-mail transmission cannot be guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard-copy version. This message is provided for informational purposes and should not be construed as a solicitation or offer to buy or sell any securities or related financial instruments.
