HP Z4 G4 memory disabled

[Nugget90]

OK, the original modules removed and the new ones inserted.  The result was no boot and beep codes.  The new ones are now on their way back to the supplier.  I have asked them to let me know if they are faulty when they test them.

[Z440Roger]

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@Nugget90 wrote:

OK, the original modules removed and the new ones inserted.  The result was no boot and beep codes.  The new ones are now on their way back to the supplier.  I have asked them to let me know if they are faulty when they test them.

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That´s some good progress. It´s very odd that two modules fail at the same time though. It makes me wonder if there is some mis-match between the pairs, new pair v.s old pair, despite having the same part numbers that throw off the motherboard.

[Nugget90]

I will report back what the supplier says.  It is a mystery to me why they did not work.