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cell board can not power on

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leelangco_1
Frequent Advisor

cell board can not power on

hi,i have a 8400 server which has 2 cells.

and cell0 cannot power on,i want to know the possible cause of that.

PE cannot power on cell0,and all the nVRM cannot power.

thank you.
11 REPLIES
Ron Irving
Trusted Contributor
Solution

Re: cell board can not power on

Hi

Please send output from the ps on that cell. Check all the vrm's.

thx
Should have been an astronaut.
leelangco_1
Frequent Advisor

Re: cell board can not power on

HW status for Cell 1 : FAILURE DETECTED

Power status : OFF, no fault
Boot is blocked
PDH memory is not shared
RIO cable status : connected
RIO cable connection physical location : IO Chassis 1
Core cell is INVALID
Attention Led is off

PDHC status Leds : --*-

0 1 2 3
CPUs Populated *

DIMMs populated:
0 . . . 4 . . . 8 . . .12 . . .


1 1 1
VRM's 1 2 3 4 5 6 7 8 9 0 1 2
Present :
Enabled :
Pwr Good :


Cell Board DIP Switches : b'10110000
Clock type : unknown
Frequency Select reg : 0x7b
CPU Clock Select : System Backplane Clock @ 100 MHz
CPU PLL : Enabled
CPU VREF control : 1.5V
CPU Type : PA8600
CPU Speed Bits : 0x20
DIP switch settings are invalid

System Boot Rom (PDC) firmware rev 255.255
PDH controller (PDHC) firmware rev 2.02, built MON MAR 25 12:37:01 2002
IceBoy revision is 1.0
Stefan Stechemesser
Honored Contributor

Re: cell board can not power on

Hi,

I think this could be the reason:

Cell Board DIP Switches : b'10110000 <===
Clock type : unknown
Frequency Select reg : 0x7b
CPU Clock Select : System Backplane Clock @ 100 MHz
CPU PLL : Enabled
CPU VREF control : 1.5V
CPU Type : PA8600
CPU Speed Bits : 0x20
DIP switch settings are invalid <===


The DIP switch for the CPU speed settings is located on the CPU site of the cellboard in the front left corner next to DIMM 2D connector.
It's a 8-switches block but only switches 1-3 are significant for the CPU speed. The other Dip Switches may differ depending how old the cellboard is.

try setting the Dip Switches similar to the other cellboard, otherwise you may have to contact HP support and ask for help.

best regards

Stefan
leelangco_1
Frequent Advisor

Re: cell board can not power on

thank you stefan.may be you are right!

and i want to give you some details about this problem.

one night last year,the server lost all powers,and it stops working. when the power recover,i found that cell0 can not power,but fortunately,after i pull out the power cable and wait 3mins the power on the server,the cell0 can normally power.

but last month,i move the server to another room,then i power on the server,found the cell0 can not power.i try many methods,but got no result.so i seek for help here.

thank you!

but what to puzzle is that the DIP switch can make change of itself? what cause the DIP switch to change,the accident lost power?

Stefan Stechemesser
Honored Contributor

Re: cell board can not power on

if this cell really was running before, then the dip switch setting unlikely causes the problem here (if nobody has touched it), except if we assume that the dip switch is out of order.

More likely the cell does not power on due to other problems and the strange display of dip switch settings is only a side effect.

I have no complete set of dip switch settings for all possible combinations that are available. Best is if you compare your two cellboards.

You can check if the cell powers in another slot. Also you can check for error messages ("sl", then "e" on the MP) and what happens in the activity log ("sl", then "a").

Other intersting commands to post here could be the ps on the cabinet and MP and a "de" on the PDHC controller of cell 0.

Does "pe" give you and error message ?
leelangco_1
Frequent Advisor

Re: cell board can not power on

yes,i have exchange the location of the cell board,but cell0 still can not get power.

the other cell's dip switch is like this:
Cell Board DIP Switches : b'00000101
Clock type : Piranha_pll
Frequency Select reg : 0x17
CPU Clock Select : System Backplane Clock @ 130 MHz
CPU PLL : Enabled
CPU VREF control : Ground
CPU Type : PA8700
CPU Speed Bits : 0xff
Dip switch settings are valid

when use PE to power on the fault cell,it returns nothing.
Sherif A. Louis
Valued Contributor

Re: cell board can not power on

could u please post the error logs from the mp, thank you.
YAQUB_1
Respected Contributor

Re: cell board can not power on

Hi,

U can logging in MP LAN mode then execute the below command:-

MP>cm
MP:CM>pe then press "T"

Send the output & also send the MP logs.

BR/
Yaqub
JIMaestre
Occasional Visitor

Re: cell board can not power on

check if more than one fan are not working at server (check upper pci and front&rear). In some servers (74xx) don't startup cell and cabinet powerup and powerdown afterwardsif there are one overtemp alert.

JIMaestre
Occasional Visitor

Re: cell board can not power on

Example : 

 -----------------------------------------------------------------------------------------------------------------------------------------------

MP:CM> ps


Display detailed status of the selected MP bus device.

 

The following MP bus devices were found:

+---+----+----+-----+-----+-------+-----+

| | | | | | | |

| | |LAN\| Sys | | IO | |

|Cab| MP |SCSI|Bkpln|Cells|Chassis| BPS |

| # |M S|0 1| | 0 1 | 0 1 | 0 1 |

+---+----+----+-----+-----+-------+-----|

| 0 |* | *| * | * | * * | * * |

+---+----+----+-----+-----+-------+-----+


You may display detailed power and hardware status for the following items:


T - Cabinet

S - System Backplane

G - MP (Core I/O)

P - IO Chassis

C - Cell

Select Device: c


Enter cell number: 1


HW status for Cell 1 : FAILURE DETECTED


Power status : OFF, no fault

Boot is blocked

PDH memory is not shared

RIO cable status : connected

RIO cable connection physical location : IO Chassis 1

Core cell is INVALID

Attention Led is off


PDHC status Leds : --*-


0 1 2 3

CPUs Populated * * * *


DIMMs populated:

0 . . . 4 . . . 8 . . .12 . . .

 


1 1 1

VRM's 1 2 3 4 5 6 7 8 9 0 1 2

Present : * * * * * * * * * * *

Enabled :

Pwr Good :

 

Cell Board DIP Switches : b'00000011

Clock type : Piranha_pll

Frequency Select reg : 0x13

CPU Clock Select : System Backplane Clock @ 130 MHz

CPU PLL : Enabled

CPU VREF control : Ground

CPU Type : PA8700

CPU Speed Bits : 0xaa

Dip switch settings are valid


System Boot Rom (PDC) firmware rev 255.255

PDH controller (PDHC) firmware rev 2.04, built MON JAN 12 18:20:02 2004

IceBoy revision is 1.0

 

............

 

MP:CM> pc e


This command controls power enable to a hardware device.


T - Cabinet

C - Cell

D - DVD/Tape

P - IO Chassis

Select Device: c

Enter cell number:


... Not a valid cell number ...


Enter cell number: 1


The power state is OFF for Cell 1.

In what state do you want the power? (ON/OFF) ON

MP:CM> p

Unknown Command. Type HE for a list of commands.


MP:CM> ps


Display detailed status of the selected MP bus device.

 

The following MP bus devices were found:

+---+----+----+-----+-----+-------+-----+

| | | | | | | |

| | |LAN\| Sys | | IO | |

|Cab| MP |SCSI|Bkpln|Cells|Chassis| BPS |

| # |M S|0 1| | 0 1 | 0 1 | 0 1 |

+---+----+----+-----+-----+-------+-----|

| 0 |* | *| * | * | * * | * * |

+---+----+----+-----+-----+-------+-----+


You may display detailed power and hardware status for the following items:


T - Cabinet

S - System Backplane

G - MP (Core I/O)

P - IO Chassis

C - Cell

Select Device: c

Enter cell number: 1


HW status for Cell 1 : FAILURE DETECTED


Power status : OFF, no fault

Boot is blocked

PDH memory is not shared

RIO cable status : connected

RIO cable connection physical location : IO Chassis 1

Core cell is INVALID

Attention Led is off


PDHC status Leds : --*-


0 1 2 3

CPUs Populated * * * *


DIMMs populated:

0 . . . 4 . . . 8 . . .12 . . .

 


1 1 1

VRM's 1 2 3 4 5 6 7 8 9 0 1 2

Present : * * * * * * * * * * *

Enabled :

Pwr Good :

 

Cell Board DIP Switches : b'00000011

Clock type : Piranha_pll

Frequency Select reg : 0x13

CPU Clock Select : System Backplane Clock @ 130 MHz

CPU PLL : Enabled

CPU VREF control : Ground

CPU Type : PA8700

CPU Speed Bits : 0xaa

Dip switch settings are valid


System Boot Rom (PDC) firmware rev 255.255

PDH controller (PDHC) firmware rev 2.04, built MON JAN 12 18:20:02 2004

IceBoy revision is 1.0


MP:CM> bo


This command boots the selected partition.


Part# Name

----- ----

0) Partition 0


Select a partition number: 0


Do you want to boot partition number 0? (Y/[N]) y


-> The selected partition will be booted.


Sorry, command failed: RtnCodeNoPoweredCellSlotsInPartition


MP:CM>


 -----------------------------------------------------------------------------------------------------------------------------------------------

 

 

once changed two upper fans with led off :

 

MP:CM> ps

Display detailed status of the selected MP bus device.


The following MP bus devices were found:
+---+----+----+-----+-----+-------+-----+
| | | | | | | |
| | |LAN\| Sys | | IO | |
|Cab| MP |SCSI|Bkpln|Cells|Chassis| BPS |
| # |M S|0 1| | 0 1 | 0 1 | 0 1 |
+---+----+----+-----+-----+-------+-----|
| 0 |* | *| * | * | * * | * * |
+---+----+----+-----+-----+-------+-----+

You may display detailed power and hardware status for the following items:

T - Cabinet
S - System Backplane
G - MP (Core I/O)
P - IO Chassis
C - Cell
Select Device: c
Enter cell number: 1

HW status for Cell 1 : NO FAILURE DETECTED

Power status : OFF, no fault
Boot is blocked
PDH memory is not shared
RIO cable status : connected
RIO cable connection physical location : IO Chassis 1
Core cell is cell 1
Attention Led is off

PDHC status Leds : ***-

0 1 2 3
CPUs Populated * * * *

DIMMs populated:
0 . . . 4 . . . 8 . . .12 . . .
* * * * * * * *

1 1 1
VRM's 1 2 3 4 5 6 7 8 9 0 1 2
Present : * * * * * * * * * * *
Enabled :
Pwr Good :


Cell Board DIP Switches : b'00000011
Clock type : Piranha_pll
Frequency Select reg : 0x13
CPU Clock Select : System Backplane Clock @ 130 MHz
CPU PLL : Enabled
CPU VREF control : Ground
CPU Type : PA8700
CPU Speed Bits : 0xaa
Dip switch settings are valid

System Boot Rom (PDC) firmware rev 16.011
PDH controller (PDHC) firmware rev 2.04, built MON JAN 12 18:20:02 2004
IceBoy revision is 1.0

 

Torsten.
Acclaimed Contributor

Re: cell board can not power on

Does it make sense to answer a 3.5 years old question?

Hope this helps!
Regards
Torsten.

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