How to decrease (set limit on) TDP of Xeon E5-1600/1620
Posted: Fri May 25, 2012 12:57 pm
Hello,
I need to upgrade my aging Q6600 silent workstation and I would probably go for LGA 2011 as there are some boards which are trustful with regarding to ECC RAM usage, i.e. not telling lies about ECC support but correctly signal corrected errors etc. to the OS. I insist on ECC so unfortunately Asus P8B/C is not trusted here well due to its SMBIOS issues: http://vip.asus.com/forum/view.aspx?id= ... -us&page=1 and unfortunately all other LGA-1155 boards I've seen and which offered ECC support probably well had badly located dimms slots (on the top of the board, hence Xeon E3 is out of way).
So, well, LGA 2011, I hope Supermicro X9SRA http://www.supermicro.com/products/moth ... /X9SRA.cfm will fit into my TNN 500 AF case with just lower dimms populated and probably with some adapter made for CPU heatpipe block screwing to board.
Anyway, the crucial question now is if I'm able to limit 130W TDP of let say E5-1620 to more saner 80-90W for which my case is designed. Supermicro's X9SRA BIOS offer nice options:
Thanks a lot!
Karel
I need to upgrade my aging Q6600 silent workstation and I would probably go for LGA 2011 as there are some boards which are trustful with regarding to ECC RAM usage, i.e. not telling lies about ECC support but correctly signal corrected errors etc. to the OS. I insist on ECC so unfortunately Asus P8B/C is not trusted here well due to its SMBIOS issues: http://vip.asus.com/forum/view.aspx?id= ... -us&page=1 and unfortunately all other LGA-1155 boards I've seen and which offered ECC support probably well had badly located dimms slots (on the top of the board, hence Xeon E3 is out of way).
So, well, LGA 2011, I hope Supermicro X9SRA http://www.supermicro.com/products/moth ... /X9SRA.cfm will fit into my TNN 500 AF case with just lower dimms populated and probably with some adapter made for CPU heatpipe block screwing to board.
Anyway, the crucial question now is if I'm able to limit 130W TDP of let say E5-1620 to more saner 80-90W for which my case is designed. Supermicro's X9SRA BIOS offer nice options:
I don't have board available here, nor processor and it might be quite expensive to buy it just to find out I've been mistaken about it, hence I'm asking here: is there anybody here with experience of capping TDP of Xeon/SB to some lower limit? If so, how was it going? What's were results?Long duration power limit - this is the processor power consumption limit (in
Watts) during a long duration time window.
Long duration maintained - this is the time in milliseconds where the Long Duration
Power Limit is maintained.
4-8
X9SRA Motherboard Series User’s Manual
Short duration power limit - During Turbo Mode, the system may exceed the processor's default power setting and exceed the Short Duration Power limit. By increasing this value, the processor can provide better performance for a short duration.
Thanks a lot!
Karel