z240 SFF CPU upgrade - cooling question

[pleiophyllous]

I've purchased a refurbished barebones z240 SFF from 3rd party and got a Xeon E3-1245 v5 for it.

When I start the computer it gives me POST Error 901-Chassis Fan Not Detected (rear). As far as I was able to find the SFF z240 doesn't have any chassis fans and CPU heatsink assembly acts as a chassis fan.

However, I found a reference in QuickSpecs document that there are two types of CPU fans - Mainstream (<= 65W TDP) and Performance (<= 90W TDP), so I thought that my particular z240 came with Mainstream cooler from factory and originally had some lower-end CPU with smaller TDP installed. Now as I installed Xeon with 80W TDP the BIOS is expecting a different cooler to be installed. I'm also concerned about overheating once I start using the workstation more.

Can anyone point me to a part number for that "Performance" cooler or any compatible cooler that I can use? Ideally I want the POST error to go away, but at very least I want to make sure that the cooler provides enough performance to cool off the new CPU.

[DGroves]

the xeon E3-1245 v5 is a 80 watt part and requires the 80 watt cooler not the 65 watt one

65-Watt CPU Cooler Fan And Heatsink For Z240 Mfr P/N 834549-001

80-Watt CPU Cooler for Z240 Mfr P/N 834550-001

https://ark.intel.com/content/www/us/en/ark/products/88173/intel-xeon-processor-e3-1245-v5-8m-cache-...

http://www.dectrader.com/pdf/quickspecs/15359_na/15359_na.html

the 901 error covers  both the tower and SFF models, and is applicable for the Chassis, rear chassis, or front chassis fan and will show if the fan spins to slow, or does not spin at all

check that all fans are spinning, and use the "HP advisor" program for workstations to check fan speeds

https://www8.hp.com/us/en/workstations/performance-advisor.html#:~:text=HP%20Performance%20Advisor&t....

http://h10032.www1.hp.com/ctg/Manual/c04897695