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Old 17 November 2019, 22:56   #2
solarmon
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Join Date: Dec 2018
Location: UK
Posts: 682
Check your power supply unit - measure the 5V and 12V rails and see if they are withing acceptable limits and is steady/stable.

Use another known working power supply if you can.

It could be failing caps in your power supply, or on the motherboard. It could also be dry joints that is causing power issues.

You mentioned about trapdoor memory. Test the A500 without this memory expansion - do you get the same issues?

Last edited by solarmon; 17 November 2019 at 23:18.
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