[ATrpms-devel] Re: Pentium 4 HT
paulo_roma at hotmail.com
Fri Dec 3 09:29:25 CET 2004
>>Recently, I realized that whenever I shut down in XP, removed and
>>reinserted the power cable, the machine started for a second and
>>stopped. Then I had to press the power button. This is the normal
>>However, when I shut down in linux, removed and reinserted the power
>>cable, the machine started without pressing the power buton. This
>>caused some problems that are not important here.
>Isn't that a pure BIOS setting? Perhaps this is hardware related?
I thought too. But with this mobo, it is not. I always set in the bios
STAY OFF on power failure. When using dual boot, acpi guarantees
a clean shutdown. Also, without acpi the smp kernel does not recognize
two processors, bu just one.
Anyway, it suffices to load only a single module: buttons.
>Then I booted using the new kernel. Everything seemed to be goot until I
>tryed to reboot.
>The screen became black and the computer froze completely. Then I rebooted
> using the same version,
>Please upgrade to the latest nvidia drivers and make sure they are
>matching their version. Use nvidia-grpahics-switch to make sure all is
I installed 6629 and everything is fine until now.
I think my hardware is OK. But dual channel is really a pain on the neck.
I use 4 sticks of 512 MB, and it was very hard to get two matched pairs
approaved by memtest86. To be able to use the smp kernel without
problem I had to raise the memory latencies in the BIOS, from 3 3 3 to 3 4
Doing that the tranfer rate of the two pair of sticks dropped from 2480 MB/s
to 23?? MB/s.
Using just one pair the transfer is just 2274 MB/s, and everything also
works fine with
memory defaults (3 3 3). Without dual channel (only one stick) the transfer
is just 16?? MB/s.
Therefore, there is an increase of almost 50% in the transfer rate if one
uses all of the 4 memory slots.
But I do recommend using just a single pair. It is safer, and the system
will be more stable.
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