On Fri, 13 May 2022 at 19:09, John Paul Adrian Glaubitz < glaub...@physik.fu-berlin.de> wrote:
> On 5/13/22 01:11, to...@suse.de wrote: > > https://cdimage.debian.org/cdimage/ports/snapshots/2022-03-28/ > > > Overheating is common and I'm aware of the process to try to fix it > > but my concern is that the machine has also become totally unstable > > in Open Firmware (OF). > > > > Initially OF was stable but I noticed that the machine had stopped > > chiming at power on and in the course of trying the various fixes for > > this OF has become totally unstable. > > (...) > > I've tested the RAM (4 sticks of PC2-4200) in a PC with MemTestx86+ > > and they are fine. I've also tried swapping in different RAM. > > > > I've tried all of the usual fixes, remove CMOS battery, power off > > for a day, clear NVRAM, boot holding down power key to go thru > > programmers tone into OF. This dinking is what made it worse :) > > Sounds like bad capacitors [1] to me. Have you checked for any suspiciously > looking capacitors on the mainboard? > My first thought reading this thread was also capacitors. I'd check none are bulging/have leaked. Could also be capacitors inside the PSU so testing a known working PSU could also be quite a good idea. Ed
