Hi Oscar,
So, you still have problems...
http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=667220
Do you have terminator boards installed on all processor positions where no processor is
installed?
Are both memory expansion boards installed?
In another forum entry you are mentioning that "maintenance" has been done before the error
occurred. What exactly has been done during that "maintenance"
Description Interlock LEDs: – The interlock LEDs (when on – AMBER) indicate that something in
the interlock
chain has been broken (cable or board not properly installed). The interlock chain is simply a
pulled
up signal that runs through boards and cables that is grounded on one end of the chain and
sensed on
the other end. If any of the boards/cables in the chain are not properly installed, the chain is
broken,
the grounded signal can not get through and the sensed end (that is pulled up) will see the break
as a
high signal (instead of a ground). When an interlock signal is on, it is indicating that the boards
and
cables should be checked for proper installation/seating. There are two interlock LEDs in the
system
(both on I/O board). The overall System Interlock LED (CR46) is located on the front edge of the
I/O
board, between slots 8 and 9, right beside the main power connector J14. The Processor Board
Interlock LED (CR20) is also located on the front edge I/O board, between slots 4 and 5, to the
right of
the main power connector J14. The Proc Bd Interlock LED (CR20) is an indication that one of the
following is the source of the problem: Processor board power cables (2), Processor board to I/O
board connection, Processors (1-4), Processor Terminator boards (0-3), Memory Expansion Boards
(2)
or Interlock/air sensor cable. The Sys Interlock LED (CR46) will be on if the Proc Bd Interlock LED is
on and/or if there is a problem with one of the following: the Standard Peripheral Board (STP), the
Power Switch Cable (connected to E4 on the I/O board). If the Proc Bd Interlock LED is also ON,
correct the problems with those items first and then if the Sys Interlock LED is still on check the
STP
board seating and the Power Switch cable. The I/O Board Power Cable (connected to J14) is the
path
the Interlock signal takes back to the power supply to indicate whether the power supply should
turn
on or not, so if the I/O board power cable is not properly connected the system won’t power up.
If the
Interlock LEDs are both off and the system will not power up, check this cable first.
Verify that at a minimum the following components are installed in the system:
1) Processors
· At least one processor and its VRM (voltage regulator module, power module, DC-DC converter)
installed on the processor board.
· A terminator board must be installed in any unused processor slots (a processor or a terminator
board must be installed in each of the 4 processor slots)
2) Power Modules
· A Power Module installed in the processor board for each processor
· A Power Module is embedded in the processor board for the Processor terminator voltage.
3) Memory
· Both memory boards must be installed in the processor board
· Supports DIMMs of 16MB, 32MB, 64MB, 128MB and 256MB
· EDO
· DIMMs are used in groups of four (all four in a group must be of same type, size and speed)
· Minimum amount of memory is 64MB up to a maximum of 8GB
4) Power Supply
· minimum of one power supply installed
· power supply cables properly installed on I/O board, backplane and fan control board
· AC cord connected to unit and both LEDs on the rear of supply solid green
5) Fans
· Minimum of 1 fan required for the I/O board zone (either fan 1 or 2).
· Minimum of 2 fans (one assembly) for the processor zone (in the back of the unit - there is an
internal assembly and an external hot-plug assembly. It can be either).
· If these conditions aren’t met, the system will begin to boot and then shut down. The LCD
display
will have just finished the memory initialization test (signified by a check mark) and there will be
2 long beeps followed by 2 short beeps.
· The two hot-plug fans in the I/O board zone have a green LED to indicate good and a amber
LED
to indicate a fan failure.
6) Standard Peripheral Board (STP)
· The STP board must be installed for the system to operate.
INTERLOCK
1) System will not power up with an interlock signal broken.
2) If power ribbon cable connected to I/O board (J13) and power back-plane board (J7) is
disconnected –
System will not boot and the interlock LEDs and the AUX 5V LED will NOT come on.
3) If the power cable for the I/O board (J14) and power back-plane board (J1) is disconnected, the
system
will not power up even though the interlock LEDs indicate status is normal. This is the cable that
routes the interlock signal to the power supply.
4) The Processor Power Modules (PPM) or Voltage Regulator Modules (VRM) are not part of the
interlock chain. However, if a processor is detected as installed, the system will power up but not
come out of reset if the processor’s corresponding PPM isn’t installed (install pin asserted) or the
PPM
isn’t asserting its power good signal.
5) There are NO Panel interlocks on this system.
Leon