Robert G. Brown wrote:
>
> On Thu, 12 Nov 1998, Mike M. Miskulin wrote:
>
> ? hey now,
> ?
> ? I've only been on this list for about 2 weeks, but
> ? I've been running a SMP machine for 2 years - a self
> ? built Supermicro machine w/ 2PPro 180's overclocked to 200.
> ?
> ?
> ? No problems other than one disk vaporization last spring.
> ? Currently running 2.1.125.
> ?
> ? Observation: it seems to me there are a lot more problems
> ? with PII systems than PPro systems. At some point I will
> ? likely build a new system, but I'm a bit put off - am I
> ? justified in this observation?
>
> Not to my observation. There are always a few new problems that surface
> when a new high water clock speed is reached and various latencies
> shrink to where they expose new bugs. I think that 440LX PII's are very
> safe by now, though, and that really up to 400 MHz 440BX dual PII's are
> likely to be ok. Always exceptions, of course, but remember, Linus uses
> high end systems himself to do kernel development on so things rarely
> stay broken for long. Right now I'm running more dual PII's than I have
> dual PPros, and rate them a tossup in relative stability. That is, they
> are both so stable that I have a hard time accumulating adequate
> statistics on which one might be more stable over only four or five
> months;-) Ask me again in a year.
>
> rgb
>
We have 9 PII 400-450 systems with BX chipset (ASUS P2B-D) which
running right out of the box for several months now. We are very
happy on 2.0.34 and 2.0.35 kernels (did not try 2.0.36 yet) with
RedHat 5.1, as production machines. The problems we found are all
HW related:
1. You need 100Mhz SDRAM in good quality. Linux is more sensitive
to SDRAM than NT. We got a batch of problematic SDRAMs which can
not do ECC at the best.
2. We saw a CPU match problem (it hangs even you run a single
CPU kernel but have too CPU installed. It is OK if you have one
there). This is a suprise since the CPUs are Intel boxed with
5 (3?) years warantee.
There are a few software problems which related to network. We
have a few drops of automount (amd). But it can be restarted
without trouble. The xntp daemons were dropped due a slow net
response.
BTW, is there anyone have a benchmark result on Xeon 2/4 CPU systems?
I saw ASUS has a 100Mhz SDRAM version of MB for Xeons. And the
all the quad systems are not 100Mhz bus yet. Is this true? Fpr
our particular needs here, 100Mhz memory bus make fundamental
difference to 66Mhz bus. I am not sure this is true for a 4-way
Xeon system.
QZ
=================================================================
Qiru Zhou [EMAIL PROTECTED]
2D428 Bell Labs, Lucent Technologies tel (908) 582-4562
600 Mountain Avenue, Murray Hill, NJ 07974 fax (908) 582-7308
=================================================================
