IBM HS40 manual Memory errors

The following illustration shows the LEDs on the I/O board.

Board error (DS7A2)

Processor board

error LED (DS8A2)

Light path diagnostics button (S8A1)

Light path

diagnostics LED (green) (DS8A1)

Secondary IDE	Primary IDE
error LED (DS6H1)	error LED (DS2H1)

BMC error LED (DS7B1)

NMI error LED (DS7A3)

Temperature error LED (DS7A4)

I/O board error LED (DS7A1)

For example:

A blade server error has occurred and you have noted that the blade server blade-error LED is lit on the blade server control panel. You then:

1.Remove the blade server from the BladeCenter unit.

2.Place the blade server on a flat, non-conductive surface.

3.Remove the cover from the blade server.

4.Press and hold the light path diagnostics button to relight the LEDs that were lit before you removed the blade server from the BladeCenter unit. The LEDs will remain lit for as long as you press the button, to a maximum of 25 seconds.

Use the table at “Light path diagnostics” on page 86 to help determine the cause of the error and the action you should take.

Memory errors

If a memory problem occurs, complete the following steps before replacing a DIMM:

1.Reseat both DIMMs in the bank.

2.Check for a memory type mismatch in the bank.

3.Run the diagnostic programs.

For more information about memory, see “Installing memory modules” on page 44.

Chapter 3. Diagnostics 29