Unsolved
This post is more than 5 years old
2 Posts
0
25696
August 11th, 2008 17:00
Supported Xeon: Demand Based Power management
Hello,
I would like to know which Xeon processors offered in the 1950 and 2950 server lines allow the Demand Based Power Management feature (in BIOS) to be enabled? There is an old post from a year ago that lists some for 1950. I am interested in an update to this so that I can make a good purchasing decision. This capability is critical to my application. Anyway we can get a list of supported processors from the current BIOS?
Thanks,
Bob
No Events found!
b.summers
2 Posts
0
August 14th, 2008 15:00
Dennis Smith
946 Posts
0
August 14th, 2008 15:00
Hi Bob,
Here is a list of supported processors and if they allow Demand Based Switching:
Xeon 5160 Yes
Xeon 5130 No
Xeon 5110 No
Xeon 5150 Yes
Xeon 5148LV Yes
Xeon E5310 No
Xeon E5320 Yes
Xeon E5335 No
Xeon E5345 Yes
Xeon X5355 Yes
Xeon X5365 Yes
Xeon L5310 No
Xeon L5320 No
Xeon L5335 No
david.j.wood
145 Posts
0
August 15th, 2008 05:00
If your aim is to keep power consumption to a minimum, then you want a 5400 series processor. An L series processor has the lowest Thermal Design Power, then E series, then X series has the highest consumption - so L series would be the most preferable of the three.
The Intel Processor Finder (click) will do the job for you - select Intel Xeon Processor, then filter on 45nm Manufacturing Technology (only the 5400 series is 54nm), 1333MHz FSB (1600MHz FSB parts are for a different chipset that I believe doesn't have features typically needed in a server) and select Demand Based Switching in the supported features.
I believe you'll get everything displayed apart from the 2.00GHz parts - Intel's literature for the 5400 series says that they don't support Demand Based Switching.
You will need to upgrade the server to the latest 2.3.1 BIOS for Demand Based Switching to work correctly; there's bugs in the ACPI DSDT in 2.2.6.