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A6435 CPUs Operating at 750, not 875mhz

 
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Rocco J Grasso
Occasional Visitor

A6435 CPUs Operating at 750, not 875mhz

We have three CPU pairs installed in an rp8400 SEU that are performing below their rated speed. Every other Part# A6435 in our five other rp8400s are operating at 875 mhz, but the ones in the SEU are not. Any ideas?

FYI: There is an open case with HP.

Thanks.
IT Manager responsible for the company's UNIX, Linux and z/OS infrastructures, all SANs&Veritas NBU
7 REPLIES 7
timmy b.
Honored Contributor

Re: A6435 CPUs Operating at 750, not 875mhz

Rocco,

What is your case number? When did you call it in?

Where are you getting the information from? What are the symptoms? What tools are you using to determine the speed? Are the cells in the SEU in any of the same partitions in the 8400? Are there any other speed cpus in the server/seu?

Lots of questions, I know, but we need more info...

Tim
There are 10 kinds of people in this world: Those who understand Binary, and those who don't.
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Rocco J Grasso
Occasional Visitor

Re: A6435 CPUs Operating at 750, not 875mhz

Tim,

Here are some of the answers. I'll get the rest Monday morning from staff. Processor speed is near the bottom, 750000000.

The rp8400 has four physical partitions. The original two servers are operating at 875mhz, but the two in the SEU are not.
----------------------------------------
MP:CM> df

This command displays the FRU ID information for the selected FRU.

Do you want a specific FRU or a dump? ([S]/D) S

S - System Backplane
U - CPU - CPU (located on Cell)
Select FRU : U
Enter cell number: 2
Enter the CPU number on the cell: 0

The Entity you have selected is CPU
FRU ID Definition Revision : A
Artwork Revision :
Engineering Date Code :
Part Number : A6435-04001
Serial Number : VU1U5VY 481P
FRU Name : Processor
Scan Revision : 0x0
FRU Specific Information : PA8700 Rev 3.1
Manufacturing and Test History :
Field 0 0x000000000000000000
Field 1 0x000000000000000000
Field 2 0x000000000000000000
Field 3 0x000000000000000000
Field 4 0x000000000000000000
Field 5 0x000000000000000000
Field Spare 0x0000
MP:CM>
+++++
.... monroe : 10.150.73.14 ....

Information Tool Log for CPU on path2/10

Log creation time: Mon Aug 15 06:05:06 2005

Hardware path: 2/10


Product ID: CPU Module Type: 0
Hardware Model: 0x5e4 Software Model: 0x4
Hardware Revision: 0 Software Revision: 0
Hardware ID: 0 Software ID: 1989273701
Boot ID: 0x2 Software Option: 0x91
Processor Number: 0 Path: 2/10
Hard Physical Address: 0xfffffffffc478000
Soft Physical Address: 0

Cabinet Number: 0 Cell Slot Number: 2
CPU Number: 8
CPU Slot Number: 0
PDC Firmware Revision: 17.8
=========================================
Processor Speed: 750000000 <------------
=========================================
Processor State: CPU Present, Not Deconfigured
Monarch: Yes Active: Yes
Data Cache [Kbyte]: 1536
Instruction TLB [entry]: 240 Processor Chip Revisions: 3.1
Data TLB Size [entry]: 240
2nd Level Cache Size:[KB] N/A
IT Manager responsible for the company's UNIX, Linux and z/OS infrastructures, all SANs&Veritas NBU
timmy b.
Honored Contributor

Re: A6435 CPUs Operating at 750, not 875mhz

Rocco,
Do me a favor and send a sysrev output from the CM prompt. This could be related to your firmware level.

Tim
There are 10 kinds of people in this world: Those who understand Binary, and those who don't.
Torsten.
Acclaimed Contributor

Re: A6435 CPUs Operating at 750, not 875mhz

Hi Rocco,

if you would provide a

MP:CM>PS

for the cells, this will give us a more detailed view.

BTW, all cells and CPUs are in the server main chassis, the SEU only hosts the IO.

Hope this helps!
Regards
Torsten.

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Jon Steele
Valued Contributor
Solution

Re: A6435 CPUs Operating at 750, not 875mhz

Did you make sure the switch settings are correct?For 875 procs they should be 1,3 off 2,4,5,6,7,8, on.The switch settings are on the cell board.
Matthew Ghofrani
Regular Advisor

Re: A6435 CPUs Operating at 750, not 875mhz

Rocco;
Your Cell Board in SEU with part number A6094A is capable of running both CPU speeds. Perhaps in your case, it is throttled down to 750 MHZ. If indeed you have an 875 MHZ CPU, have the CE come in and 1st verify your CPU and then reset the chip setting on the Cell Board.

Good Luck and let me know how you did

Matthew from Boston, MA
Life is full of bugs
Rocco J Grasso
Occasional Visitor

Re: A6435 CPUs Operating at 750, not 875mhz

Jon and Matt,

You have hit upon the problem. Thanks!

Rocky
IT Manager responsible for the company's UNIX, Linux and z/OS infrastructures, all SANs&Veritas NBU