Re: Athlon/K7-Opimisation problems

[Nicholas Knight <tegeran@home.com>]

On Sunday 09 September 2001 10:07 am, Carsten Leonhardt wrote:
> Hi,
>
> here's my data regarding the K7 optimisation problem.
>
> Until last week I had a 1GHz Athlon with 133MHz FSB. I then bought a
> 1.4GHz Athlon, again 133MHz FSB.
>
> I never had any problems with the 1GHz processor, but as soon as I
> stuck the 1.4GHz processor in, the kernel oopsed itself to
> oblivion. (That was with kernel 2.4.5-ac5, approximately)

This is common enough it's becoming absurd.

>
> I also noticed that the computer booted ok with the Debian
> bootfloppies, which use a kernel compiled for i386. So after several
> kernel compile/boot cycles, I found out that I had to disable K7
> optimisation to make the system boot again.
>
> The mainboard is a Tyan Trinity KT-A (S2390B) with a VIA KT133A
> chipset.
>
> After reading here that it may be the PSU, I upgraded my 300W PSU to a
> 431W Enermax, which made no difference.
>
> The only difference I can make out between the working and the
> non-working CPU is the internal clockspeed of the CPU and the
> stepping (old: 2, new: 4).

Heat anyone? stepping 4 hasn't seemed to be the problem, at least not 
directly
What's the tempature difference between your 1Ghz and 1.4Ghz? both CPU 
and system? What kind of cooling do you have?