Looks like a bad memory IC or possibly it needs the memory ICs reflowed, the heat sinks complicate it a bit.

Trashbytes wrote on Today, 07:09:

Looks like a bad memory IC or possibly it needs the memory ICs reflowed, the heat sinks complicate it a bit.

Those heatsinks look like a nightmare to remove 😗 Will try the twist method first.

Still testing resistors. Best case scenario, bank 0 has lost power (not sure where to check voltages). Or something has gone wrong with the core.

zuldan wrote on 40 minutes ago:

Trashbytes wrote on Today, 07:09:

Looks like a bad memory IC or possibly it needs the memory ICs reflowed, the heat sinks complicate it a bit.

Those heatsinks look like a nightmare to remove 😗 Will try the twist method first.

Still testing resistors. Best case scenario, bank 0 has lost power (not sure where to check voltages). Or something has gone wrong with the core.

Use some canned air, tip the can upside down and freeze the heat sinks with it, it will make the thermal bonding brittle, will help to reduce any further damage from trying to remove them.

The MATS test looks like it can detect the bank so unlikely its lost power .. check the data lines perhaps a data pin is lose.

zuldan wrote on 40 minutes ago:

Those heatsinks look like a nightmare to remove 😗 Will try the twist method first.

Either hot or cold.. I use 100°C warm hotair - let it soak the heatsink a little and then gently twist them. Worked for me so far every time without issues.

I'll check my archives later if I have a schematic laying around somewhere.