Vista RC2 x64 spontaneously turns power off (not sleeping), no cra

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Guest

This is an odd problem I never saw on RC1 - all of a sudden the machine just
turns the power off, hard. When powering on again I get the "Start Windows
normally" prompt. This seems to occur more frequent when trying to install
old 32-bit apps, but did occur just after a fresh install as well, with the
stock MS driver for the ATI card and no Aero interface.

Power management is set to max performance without any sleeping, but I've
also tried the balanced mode with exactly the same results.

Note also that the system sometimes runs for 8 hours+ without experiencing
this behaviour, but sometimes it turns off a few seconds after logging in...

What's odd is that Vista doesn't complain that it experienced an unexpected
crash when starting in graphics mode again, and I can't see anything in the
logs, so it seems that something just told the power supply to shut down!?

I have even replaced the power supply without any difference and tried
reinstalling several times, and I've never seen it happening on RC1 or on
standard XP 32-bit on this hardware.

Installation is done on a ECS nForce4 A939 mainboard with an Athlon64 4000+
and 2GB RAM on a 250GB Maxtor MaxLine III SATA2 disk connected to the nForce4
SATA2 controller. Graphics card is an ATI Radeon X800GT with 256MB of RAM on
the PCI-E bus.

Has anyone experienced similar things, I though that I was supposed to see a
bluescreen at least if there was some kind of crash, but nothing... The
system has been configured NOT to automatically reboot after a bluescreen,
but this still happends, sp I guess that it's not a normal bluescreen crash
I'm seeing?

Hopefully someone can enlighten me what's going on here! Thanks in advance!

/Werner
 
The web page gave me an error the first time stating that the posting didn't
go through, which it obviously did anyway, sorry about the double post!
 
It seems that this wasn't an easy thing to answer... I've been digging around
and found some other people that have had crashes with more that 1GB of RAM
(but it seems strange that it would be the real cause of error).

I have also now tried the x86 version of RC2 on my ThinkPad T41p laptop
(Pentium M 1.7GHz 1.5GB RAM FireGL-T2 graphics w/ 128MB) and it's working
flawlessly there (even Aero Glass, wow, experience index 3,4 - not bad for a
laptop a couple of years old!)... I'll give the x86 version a spin on my
Athlon64 as well, and I'll try to remove half the memory just to make sure
everything's OK there...

/Werner
 
A really silly thing it turns out - my SATA cables were not 100% up to the
task of running SATA-300 (SATA-II), and for some reason RC2 was way pickier
than RC1 (and XP for that matter). I haven't figured out why it actually
killed the power, but it might be some attempt to make sure that as little
corrupt data as possible gets committed to disk? Replacing the cables with
certified SATA-II cables solved the problem, and now after a reinstall no
issues at all...

I read somewhere that the older SATA drivers was a lot slower which might
explain this? Anyone else that has seen the same thing?

/wj
 
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