dougal wrote:
I bought it from someone locally , she had moved house and forgot the keyboard and the RGB cable at her old house 
It's a nice machine to own, but it is rather cramped inside. Quite a few CD/DVD ROMS are either too long to fit properly or crush the cables against the PSU and by the time you stack a couple of hard drives into the metal bracket then there isn't much space for air flow.
My internal SD/FF died just before I left home (monitor would lose and regain native signals constantly from the SDFF VHA port, but a CBM VGA adapter on the regular video port produced a solid, but ugly display - removing and reseating it didn't work) and I wouldn't be too suprised to find out that heat was to blame. I'll pick up an Indivision 4000 when I get back and install that.
I think I'm going to pull the internal DVD drive and just put the blanking plate back as an external USB drive attached to the Deneb works just as well and allows easy installation of OS3.9 from OS3.1. It will probably give the PSU a break too and help the cooling. I can probably lose one of the 80GB hard drives too as 160GB storage is probably kicking the ass out of it. :-D