A2100 start up diagnostics

[Kumanov]

Hello

I had the "Power supply malfunction" fail (8004e) many times without any dependence and tendency, so I was adviced to disassembly, clean the ISA ports and assembly again all the components of the controller. I disassembled, cleaned carefully with fine sandpaper the ISA's for any oxidations (male and female), blew them with compressed air and assembled again.
1. As result the system started to fail on the hardware diagnostics (Bridge board WS- Failed). Only once from about 10 times it passed the whole diagnostics and the machine worked about 1 hour fine, then appeared Realtime timeout (8004d) and since then it won't pass the Bridge board WS diagnostic. On the extended diagnostics appears sometimes 80C31: Failed; Realtime processor power-up: Failed and sometimes

80C31: OK; Realtime processor power-up: Failed. Can anybody give me advice where should I look for bad connection or something...

2. What's the proper position for hooking up the reset cable on the Bridge board (pic 1 or pic 2)??? On the pic 3 is how it's connected to the RT board.

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[dillonfitz]

Hello

I had the "Power supply malfunction" fail (8004e) many times without any dependence and tendency, so I was adviced to disassembly, clean the ISA ports and assembly again all the components of the controller. I disassembled, cleaned carefully with fine sandpaper the ISA's for any oxidations (male and female), blew them with compressed air and assembled again.
1. As result the system started to fail on the hardware diagnostics (Bridge board WS- Failed). Only once from about 10 times it passed the whole diagnostics and the machine worked about 1 hour fine, then appeared Realtime timeout (8004d) and since then it won't pass the Bridge board WS diagnostic. On the extended diagnostics appears sometimes 80C31: Failed; Realtime processor power-up: Failed and sometimes

80C31: OK; Realtime processor power-up: Failed. Can anybody give me advice where should I look for bad connection or something...

2. What's the proper position for hooking up the reset cable on the Bridge board (pic 1 or pic 2)??? On the pic 3 is how it's connected to the RT board.

If you end up needing the boards I have a dismantled machine that might have the same computer.


Sent from my iPhone using Tapatalk

[Kumanov]

If you end up needing the boards I have a dismantled machine that might have the same computer.


Sent from my iPhone using Tapatalk

You have PM

[andrecorreia]

Hi, try to replace the thermal paste in the processor and also ad a fan. Mine did that and was only the bad thermal paste that was never changed and should be changed evey 2 years.

[Kumanov]

Hi, try to replace the thermal paste in the processor and also ad a fan. Mine did that and was only the bad thermal paste that was never changed and should be changed evey 2 years.

Thank you for the advice, I'll try.