DL140 speed step problem

[Jacek Nykis]

Hi,

I have DL140 G2 machine running CentOS Linux.
Unfortunately I cannot use speedstep technology. Does anyone know if there are any issues or if motherboard does not support it?

My CPU model:
SL7ZC , 3.6GHz Xeon, fsb 800MHz.
According to documentation it should support it.
Any ideas?

Thank you for help,
regards,
Jacek Nykis

[James ~ Happy Dude · Accepted solution]

Hello Jacek,

SpeedStep is an INTEL proprietary.
Look at the CHIPSET required for this feature, as mentioned by intel:
http://www.intel.com/cd/channel/reseller/asmo-na/eng/products/box_processors/desktop/proc_dsk_p4/technical_reference/203838.htm

DL140 G3 has a Intel Chipset E7520 with 800MHz Front Side Bus, which DOES NOT meet the criteria;
Refer: http://h18004.www1.hp.com/products/quickspecs/12205_div/12205_div.html

Again, as per intel,
http://processorfinder.intel.com/List.aspx?ProcFam=528&sSpec=&OrdCode=
There are no 3.6Ghz processor that will support SpeedStep;


As per HP, DL140 G2 will support:
* Intel Xeon 3.6GHz processor with 2M L2 Cache
* Intel Xeon 3.4GHz processor with 2MB L2 Cache
* Intel Xeon 3.4GHz processor with 1MB L2 Cache
* Intel Xeon 2.8GHz processor with 2M L2 Cache
* Intel Xeon 2.8GHz processor with 1M L2 Cache

& only the 2.8Ghz with 2MB L2 cache fits this Criteria, PROVIDED the Chipset is a match;
http://processorfinder.intel.com/details.aspx?sSpec=SL8UB

Hence, Clearly, as per my research, SPEEDSTEP CANNOT be achieved in a DL140 G2;

Regards.

[Jacek Nykis]

Thank you very much for your help.

Regards
Jacek nykis