Thanks all. Varied feedbacks.
The overall response was it is okay to use the newer 98MHz boards onthe old
X000's since it will adjust to the other boards max speed w/c is 84MHz. On
the CPU upgrade of X000 systems to 400Mhz/8Mb CPU's - the majority says it
is okay but the CPU board as well as the clock board may need to be
replaced. The I/O boards and the backplane stay as is but the overall system
bus speed will remain at 84 MHz. One fella reported that the 400MHz CPU's on
the 83MHz CPU boards will only be 'seen' and work as a 336Mhz???
Thanks All.
Nelson
> -----Original Message-----
> From: Caparrosso, Nelson T.
> Sent: Friday, April 28, 2000 2:47 PM
> To: 'sun-managers@sunmanagers.ececs.uc.edu'
> Subject: 98mhz CPU Board on an 84mhz Backplane?
>
> Revered Guru's
>
> Is it operationally okay to have a 98mhz CPU board mixed with 84mhz CPU
> boards but all are running same speed CPU's? I noticed that one of our
> systems, a UE6000 with 10 CPU's (5 CPU boards) it's board cpu board 0 is
> 98mhz board while the rest are 84mhz:
>
> System Configuration: Sun Microsystems sun4u 16-slot Sun Enterprise 6000
> System clock frequency: 84 MHz
> Memory size: 4096Mb
>
> Brd FHC AC SBus0 SBus1 PCI0 PCI1 FEPS Board Type Attributes
> --- --- -- ----- ----- ---- ---- ---- ---------- ----------
> 0 1 5 CPU 98MHz
> Capable
> 1 1 5 1 1 22 Dual-SBus 84MHz
> Capable
> 2 1 5 CPU 84MHz
> Capable
> 3 1 5 1 1 22 Dual-SBus 84MHz
> Capable
> 4 1 5 CPU 84MHz
> Capable
> 5 1 5 1 1 22 Dual-SBus 84MHz
> Capable
> 6 1 5 CPU 84MHz
> Capable
> 7 1 5 1 1 22 Dual-SBus 84MHz
> Capable
> 8 1 5 CPU 84MHz
> Capable
> 9 1 5 1 1 22 Dual-SBus 84MHz
> Capable
> Board 0 on 6 is a x500 Board (98 Mhz Speed)
>
> Also if I upgrade the CPU only to say a 400mhz/8mb cache, will I need to
> change the CPU boards or just the PROM rev?
> All cpu boards are at the following PROM revision:
>
> OBP 3.2.24 1999/12/23 17:31
>
> Thanks for any insights.
>
>
> Nelson
>
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