https://community.hpe.com/t5/proliant-servers-ml-dl-sl/performance-issue-on-dl385-g5p-cpuspeed/m-p/4632634#M102601 We have had some problems with 3 DL385 G5p using RHEL 5.4. The cpuspeed is stuck in 800 Mhz or 1500Mhz.<BR />2 of them have been solved and we're waiting for a service window on the last one.<BR /><BR />The step we have used to solve them is:<BR />1) Upgrade firmware to 8.70<BR />2) Change to "HP Static High Performance Mode" in BIOS (or ILO)<BR />3) Upgrade Power Management Controller Firmware to 2.9. In one of the cases the firmware where 2.3 where HP has published a know bug. In the other case the firmware where &lt;2.3 where the upgrade didn't help or it helped in combination of all the other steps.<BR />4) Disable "Ultra Low Power Mode" in BIOS<BR /><BR />Not sure if this helps anybody with the same problem, or if it's the supported way to do it. Wed, 12 May 2010 18:44:18 GMT edbuser 2010-05-12T18:44:18Z https://community.hpe.com/t5/proliant-servers-ml-dl-sl/performance-issue-on-dl385-g5p-cpuspeed/m-p/4632634#M102601 We have had some problems with 3 DL385 G5p using RHEL 5.4. The cpuspeed is stuck in 800 Mhz or 1500Mhz.<BR />2 of them have been solved and we're waiting for a service window on the last one.<BR /><BR />The step we have used to solve them is:<BR />1) Upgrade firmware to 8.70<BR />2) Change to "HP Static High Performance Mode" in BIOS (or ILO)<BR />3) Upgrade Power Management Controller Firmware to 2.9. In one of the cases the firmware where 2.3 where HP has published a know bug. In the other case the firmware where &lt;2.3 where the upgrade didn't help or it helped in combination of all the other steps.<BR />4) Disable "Ultra Low Power Mode" in BIOS<BR /><BR />Not sure if this helps anybody with the same problem, or if it's the supported way to do it. Wed, 12 May 2010 18:44:18 GMT https://community.hpe.com/t5/proliant-servers-ml-dl-sl/performance-issue-on-dl385-g5p-cpuspeed/m-p/4632634#M102601 edbuser 2010-05-12T18:44:18Z