NetServer LH 3000 Event Issues

[Tom Terronez]

An HP NetServer that I am have been working with all of the sudden started having a red flashing light on the front of the unit. I quickly looked through the Event Log on the front panel of the server and it listed Voltage (over and under) and Temperature Events, but the server itself seems to be functioning correctly. Any thoughts on what might have caused this or how to solve the issue? Is it safe to use? Thanks in advance.

Tom

[Alicia White]

I would make sure the server's firmware & BIOS are all up to date.

If the voltage & temperature readings don't go away after that, there may be a problem with the system

Temperature problems may indicate a problem with air flow or a bad fan. Are you getting any fan errors in addition to the temp ones? Check to make sure that the air vents in the system aren't clogged with dust or otherwise blocked. Make sure you actually feel air coming out where the fans are (check optional fan next to CPU, system fan on same side as PCI cards).

The voltage errors may indicate problems with the Voltage Regulator Modules (VRMs).

But, you can't be sure the warnings are genuine until you've updated the firmware & BIOS.

Please, let us know if that helps.

Alicia

[e4services]

If the problem is not a fan not spinning up, I would replace the power supply. Is one of them more hot than the other? They are a common mode of failure.

[Sean T. Craig]

Hi Tom,

Which Operating System are you running? If it is Windows based, try installing Instant TopTools from this link:
http://h20000.www2.hp.com/bizsupport/CoreRedirect.jsp?targetPage=ftp%3A%2F%2Fftp.hp.com%2Fpub%2Fsoftlib%2Fsoftware2%2FCOL3288%2Fns-11142-1%2Fitt_win2003_win2000_nt40_555_2.exe

The utility will show you the status of all your voltage, temp & fan speed sensors. If there is a failed fan, it will tell you which one which is important because there are several in the LH3000.
If you are getting a voltage error, it is imperative that you update your BIOS because it includes an update to the Netserver Management Controller which has all the tolerance levels for the sensors.
The latest BIOS revs. for the LH3000 are 4.06.33 PT for the U2 version and 4.06.04 RN for the U3 and they can be downloaded from this page:
http://h20000.www2.hp.com/bizsupport/TechSupport/DriverDownload.jsp?locale=en_US&pnameOID=19611&taskId=135&prodTypeId=15351&prodSeriesId=50440〈=en&cc=us&swEnvOID=54

If your BIOS has been updated and you are still getting the message, you can try reversing the VRM's (Provided you have 2 installed) and see if the error follows the VRM. You can check the values of the VRM's using Instant TopTools and looking at the Voltage section on the Status Page.

If you're stuck, call Netserver Support at 1-800-474-6836 and say "Netserver" at the prompt. Free phone support is still offered on this model of Netserver so you may as well take advantage of it.

Let us know how that goes,

Sean T. Craig Sr. C.E.T., M.C.P.

[Tom Terronez]

Thank you for your help! I upgraded the bios and MMC firmware, but I still am having issues with the VRM and Temperature. Listed below are the details from the power and temp sections of TopTools. Any more ideas before I start replacing parts? Thanks again!

# Status Sensor Reading
0 - BBU Voltage - Volts
1 System +5V 5.51 Volts
2 System -5V -5.77 Volts
3 System +12V 13.06 Volts
4 System -12V -13.83 Volts
5 System +3.3V 3.62 Volts
6 Primary VRM 1.84 Volts
7 Secondary VRM 1.86 Volts

# Status Sensor Reading
0 Backplane Temp 26.00 C
1 Pri. CPU Temp 31.00 C
2 Sec. CPU Temp 31.00 C
3 System Bd Temp 57.00 C

Tom

[Tom Terronez]

Note also that all fans are clean and working well.

Tom

[Sean T. Craig]

Hey Tom,

It is possible that those events are now corrected. Have you tried clearing the hardware event log? From the Status page, click on "System Event Log" on the left-hand side and click on the "Clear Event Log" button in the top right corner. When you restart the server, the red LED should go out and the green one should turn on.

Best of luck,

Sean T. Craig Sr. C.E.T., M.C.P.

[Tom Terronez]

I have cleared the event log and the red light stops showing, but it comes right back up everytime I reboot. Thanks!

Tom