[CentOS] System hangs at "Rebooting System" on VIA KM400 chipsets

[Benjamin Smith]

Dunno, but I'd be messing around with the BIOS. Usually there's something 
there that you have to tweak. Turn stuff on/off that looks right. Look for 
stuff about turning on/off power management, apci, etc. 

(Obvious: don't mess with CPU speed, clock speed, HDD settings, etc) 

-Ben 

On Tuesday 23 January 2007 17:02, nethub at gmail.com wrote:
> Hello,
> 
> We have a number of systems running KM400 chipsets from VIA (Socket 
> A/462).  Two different models have produced the same results -- DFI 
> KM400-MLV and MSI KM4M-V.  When a /sbin/reboot or /sbin/shutdown -r now 
> is issued, the system does everything you would expect from a reboot, 
> but when it gets to Rebooting System, it hangs and requires a power cycle.
> 
> The logs do not indicate anything is going wrong.  It's not a kernel 
> panic.  I've tried appending "acpi=off noapic" or just "apci=off" to 
> grub.conf and neither help.  We've tested these boards extensively with 
> various CPU's, hard drives, and RAM and they show no other issues, so 
> it's not hardware defects or hardware compatibility issues.
> 
> I'm not sure what is going on, but assistance would be greatly appreciated.
> 
> Thanks.
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