Hello, I have just attempted to install my new BigRAM A2630 on my unmodified, 25MHz A2630 with 4 MB RAM. I am having stability issues with the board installed. I get the following:
- First time boot after card being out of the system often boots fine to workbench but eventually locks up with power light flashing
- Subsequent power cycles either get into a boot loop of flashing screens, flashing power light, or solid power light and nothing at all
- Removing the BigRAM makes the machine boot perfectly fine again
- Leaving the BigRAM in the machine with power off for a 15 minutes or more allows it to boot again with the same issues above
My first guess was something to do with caps and indeed I have read in a previous thread that this is likely due to some PSU caps, specifically the 5V rail. Could someone please advise me exactly which caps I should look at replacing and a recommendation for modern parts to replace them with?
Many thanks.