Question Purchased replacement RAM for DELL Precision Tower 5810 no output on boot

Jun 17, 2020
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Hi

I purchased 4 X 16GB Corsair DDR4 2133MHz replacement RAM for DELL Precision Tower 5810 and inserted them in DIMM slots 1-4, but there's no output on boot.

The old RAM that was in the PC is 8 X 4GB PC4-2133P SK Hynix. The PC boots fine if I put the old RAM back in.

I also tried putting 4 of the old RAM in slots 5-8 along with the new RAM and this didn't work either, power button was flashing orange.

Any suggestions is greatly appreciated

Thanks
Seamus