hp Z800 workstation failed memory error after install of dual nic pcie card

[609crew]

I have plugged in this dell dual pcie nic card ( Link ) into port 0 of my pcie slot on my HP Z800 Workstation and it is now beeping 5 times when i start the server and it also shows the following during boot:

207-incompatible DIMMS Detect
slot CPU0 DIMMS
203-Memory module failed self-test and failing rank was disabled
slot CPU0 DIMMS
207-incompatible DIMMS Detect
slot CPU1 DIMMS
203-Memory module failed self-test and failing rank was disabled
slot CPU1 DIMMS

When i allow the workstation to load it states that it is only using 8 GB out of the 12 GB that is actually installed on the Workstation

When i remove this PCIE card the workstation will load without any beeping or reported errors as above and will show it is using all 12 GB of memory installed!

Any ideas how to resolve this?

[DGroves · Accepted solution]

the dell card was made to work with specific dell servers/workstations and this card sends information to the server via the i2c bus such as card temp and diag results,..... this i2c bus usage is what is causing the errors when the card is used in a non dell system.

you can disable the i2c  on the card by masking off pins 5 and 6  on the front side of the card using tape or nail polish

https://pinouts.ru/Slots/pci_express_pinout.shtml

i personally would simply use a diffrent card as nowadays even a dual nic card is not that expensive

[609crew]

Hi DGROVES You were correct! I was able to use black electrical tape to block off pins 5 & 6 on the top/front side of the pcie card and when turning on the server with the card in it allowed the server to boot properly with the card in and it recognized all 12 GB of memory and had no errors!

This is great and thank you so much for your time! Have a great rest of the weekend!