Random lockups - help needed!!

[Unit21]

Once again I turn to the vast knowledge of the Amiga.org- members for help. ;-)

I got my old Amiga 4000T & Co. out of the closet the other day. The Amiga is fitted with a PPC and a Mediator. The Gfx-card is a Voodoo3 2000.
It also has some TV-card and an RTL-based network card.
Both the Cyberstorm and the Amiga mainboard is fully populated with Memory.

When using the machine it seems to hang at random. I cannot spot the error,
and snoopdos is of no help cause the machine crashes with a black screen or freezes.

It has an IBM deskstar ATA100 IDE-drive for some reason (not SCSI).
This drive is connected with a 40 pin IDE-cable.  Can this be a problem? Should I connect it with an 80pin cable instead??

I remember that random lockups were usually connected with dodgy RAM. Does anyone remember if the CyberStorm uses FPM or EDO RAM?

All creative advice is greatly appreciated!!
Thanks in advance!!

[Unit21]

Hey hey!!

Can we focus on my problems for once...  :-D

[Unit21]

I think I found the problem...

The accelerator is getting a bit oldish so I took it out and cleaned the contacts around on the board.
I also sprayed the accelerator- port on the mainboard.
The machine has been running stable for a few hours now...

I´ll just have to wait and see what happens.... ;-)

Thanks for the advice guys!

[Unit21]

I have tried different things, but after cleaning som of the contact points on the Amiga mainboard things seem to run pretty ok.
I have the occational crash, but they are all related to misbehaving programs.

Now the Amiga has given me something else to worry about.
When I turn it on it takes ages to boot up the first time.
It´s almost like it needs time to heat up.
After leaving it on for 15 to 20 minutes and then performing a soft resert it boots happily and works rock- steady.
Then I can turn it off and on again with no problem....

Do you think this might be my Amigas way of saying that it didn´t like it in the closet?? :-)

Or is my PSU about to retire?
And if so, can I use a standard AT PSU for the Miggy?
(It´s an A4000T)