Mailinglist Archive: opensuse-amd64 (380 mails)

[Mark Horton <mark@xxxxxxxxxxxx>]

Ah ok.  That explains it.  After doing a little research on those pdf 
docs I believe my cpu is revsion B3.  I'll have to take the heatsink off 
to make sure.

Does any happen to know if /proc/cpuinfo reveals anything about the cpu 
revision?  It looks like there is either B3 or C0.

Mark


Frank Pieczynski wrote:
> On Monday 23 February 2004 20:57, Mark Horton wrote:
>
> > Unfortunately I don't have a solution, but I was wondering about your
> > DDR400 with a 242 CPU.  My understanding is that this would run at
> > DDR333.  Do you have any idea if you are getting DDR400 speed?  I'm not
> > even sure how to determine this.  I have used hdparm -T for some sort of
> > rough estimate.  I'd be curious what your results are.
> >
> > Here's mine with a dual 240 DDR333 system:
> >
> > hdparm -T /dev/md0
> >
> > /dev/md0:
> >  Timing buffer-cache reads:   2680 MB in  2.00 seconds = 1339.33 MB/sec
>
>
> My Thunder K8W with 2 x 240 and DDR400; Hitachi SATA
> Timing buffer-cache reads:   3056 MB in  2.00 seconds = 1527.47 MB/sec
> Timing buffered disk reads:  176 MB in  3.03 seconds =  58.08 MB/sec
>
> In the first boot screen the BIOS display the RAM speed.
>
> In AMD pdf about the Opteron CPU 23932.pdf you will find a table on page 14, 
> Table 2. DRAM Interface Speed vs. CPU Core Clock Multiplier
> You will see a 240 runs it 166 memory only with 155 MHz, so I cannot imagine 
> this was by design. But all CPU's, independend of core frequency, can clock 
> the memory with 200MHz. So I assume, this was designed from beginning.
> And it runs perfectly.
> Also the HT bus is multiple by 200MHz
>
> Regards
> Frank