Troubleshooting advice - Indigo R3k - no chime

[kaoshonen]

Hello folks,

I recently picked up this Indigo with R3000 CPU. When I flip the power switch, the machine does not appear to start up. The PSU fan blowers, and green LED on the CPU card Illuminates, but that's it - no chime, or hard drive activity. Do you have any recommendations on where to start troubleshooting? Any best practices when handling this machine?

So far I have removed the HDDs, and tried to start with combination of just CPU card, and just GPU card, but the machine acts the same. I also reseated the 4 8MB memory sticks, but that didn't make any difference.

I have not totally disassembled the machine yet, but I did notice some signs of surface corrosion around the ports on the backside.

Thanks in advance!

Here are a few images:

http://imgur.com/a/E2CI5sq

 

[flexion]

Hi and welcome! I have an IRIS Indigo which had a similar behavior (green LED but no chime), because the reset button was shorted (defective -> constantly pressed).

 

[kaoshonen]

Hello @flexion,

Thanks for the advice. I noticed that when I hit the reset button, it had no effect. Can you briefly describe how to check the switch? I assume the PSU needs to be removed, and opened up?

 

[flexion]

Thanks for the advice. I noticed that when I hit the reset button, it had no effect. Can you briefly describe how to check the switch? I assume the PSU needs to be removed, and opened up?

Just remove the wire from the reset button for another test.
I found out my reset button was constantly pressed when I measured the wires of the button with a multi-meter.

 

[kaoshonen]

Thanks @flexion I'll give that a try!

Is there a trick to removing the PSU? I found one Philips head screw on the back, near the fan. I must be missing another screw or bolt, cause I can't seem to get it to slide out. Am I missing a step?

*** update ***

Got the PSU out, had to really push and pull to get that thing out. Next I'll try to crack it open.