Hi Guy Harrison,
you wrote.
>> Do you get the same result if booting without ACPI?

GH> Yes. I'm assuming here that the [default] boot option does not have ACPI
GH> enabled (if so, how to disable it?). The boot results are identical to
GH> when I select option 2 to boot with ACPI enabled.

> I too get a page fault when trying to boot from that ISO on a P3 1GHZ
> with SiS 630 chipset. I think my memory is fine as it ran through 10 memtest 
> without a single problem (my original motivation was to install 5.2.1
> on that box to check whether the weird MySQL issue really doesn't
> exist on Intel CPUs).
> It is fine on an Athlon XP2400 using VIA KT400 based mainboard though.

Not my month this - you name it, and its gone wrong, packed up, vanished or 
plonked itself nicely into the bizarre category.

Fwiw, it appears I have a cheap Alladin V clone. Booting can be achieved by 
disabling power management in the BIOS *plus* fiddling with an IRQ3 option 
that I don't fully understand (can't get a decent bios manual). That'll get 
the machine to boot.

Next problem manifests itself as dodgy ram - gcc & bz2 failures. Default CS 
latency is "Auto" but setting it specifically to match the ram (CS=2) 
improves things greatly. The north/south bridge chips don't match any 
datasheet - iirc it appears one is off one particular release series, the 
other off the next mobo release.

Finally nailed the remaining reliability problem down to UDMA. Moment I turned 
it off, spurious faults went away and haven't re-occurred since. Obviously 
this mobo is a pile of junk. On the off-chance there's useful info to be had, 
here's how it fires up currently...

Copyright (c) 1992-2004 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
        The Regents of the University of California. All rights reserved.
FreeBSD 5.2.1-RELEASE #0: Mon Feb 23 20:45:55 GMT 2004
    [EMAIL PROTECTED]:/usr/obj/usr/src/sys/GENERIC
Preloaded elf kernel "/boot/kernel/kernel" at 0xc09e3000.
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: AMD-K6(tm) 3D processor (350.80-MHz 586-class CPU)
  Origin = "AuthenticAMD"  Id = 0x580  Stepping = 0
  AMD Features=0x80000800<SYSCALL,3DNow!>
real memory  = 201326592 (192 MB)
avail memory = 185921536 (177 MB)
npx0: [FAST]
npx0: <math processor> on motherboard
npx0: INT 16 interface
pcibios: BIOS version 2.10
Using $PIR table, 7 entries at 0xc00f7dd0
pcib0: <AcerLabs M1541 (Aladdin-V) PCI host bridge> at pcibus 0 on motherboard
pci0: <PCI bus> on pcib0
pci_cfgintr: 0:14 INTA BIOS irq 11
pci_cfgintr: 0:16 INTA BIOS irq 10
pci_cfgintr: 0:18 INTA BIOS irq 9
agp0: <Ali M1541 host to AGP bridge> mem 0xe0000000-0xe3ffffff at device 0.0 
on pci0
pcib1: <PCI-PCI bridge> at device 1.0 on pci0
pci1: <PCI bus> on pcib1
pci1: <display, VGA> at device 0.0 (no driver attached)
isab0: <PCI-ISA bridge> at device 7.0 on pci0
isa0: <ISA bus> on isab0
pci0: <multimedia, audio> at device 14.0 (no driver attached)
atapci0: <AcerLabs Aladdin UDMA33 controller> port 0xffa0-0xffaf at device 
15.0 on pci0
ata0: at 0x1f0 irq 14 on atapci0
ata0: [MPSAFE]
ata1: at 0x170 irq 15 on atapci0
ata1: [MPSAFE]
vr0: <VIA VT6105 Rhine III 10/100BaseTX> port 0xdc00-0xdcff mem 
0xdfffff00-0xdfffffff irq 10 at device 16.0 on pci0
vr0: Ethernet address: 00:40:f4:8c:7d:f8
miibus0: <MII bus> on vr0
ukphy0: <Generic IEEE 802.3u media interface> on miibus0
ukphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
ahc0: <Adaptec 2940A Ultra SCSI adapter> port 0xd800-0xd8ff mem 
0xdfffd000-0xdfffdfff irq 9 at device 18.0 on pci0
aic7860: Ultra Single Channel A, SCSI Id=7, 3/253 SCBs
orm0: <Option ROMs> at iomem 0xc8000-0xc87ff,0xc0000-0xc7fff on isa0
pmtimer0 on isa0
atkbdc0: <Keyboard controller (i8042)> at port 0x64,0x60 on isa0
atkbd0: <AT Keyboard> flags 0x1 irq 1 on atkbdc0
kbd0 at atkbd0
psm0: <PS/2 Mouse> irq 12 on atkbdc0
psm0: model IntelliMouse, device ID 3
fdc0: <Enhanced floppy controller (i82077, NE72065 or clone)> at port 
0x3f7,0x3f0-0x3f5 irq 6 drq 2 on isa0
fdc0: FIFO enabled, 8 bytes threshold
fd0: <1440-KB 3.5" drive> on fdc0 drive 0
ppc0: <Parallel port> at port 0x378-0x37f irq 7 on isa0
ppc0: Generic chipset (EPP/NIBBLE) in COMPATIBLE mode
ppbus0: <Parallel port bus> on ppc0
plip0: <PLIP network interface> on ppbus0
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port
ppi0: <Parallel I/O> on ppbus0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
sio0: type 16550A
sio1: configured irq 3 not in bitmap of probed irqs 0x10
sio1: port may not be enabled
sio1 at port 0x2f8-0x2ff irq 3 on isa0
sio1: type 16550A
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
unknown: <PNP0303> can't assign resources (port)
unknown: <PNP0a03> can't assign resources (port)
unknown: <PNP0501> can't assign resources (port)
unknown: <PNP0501> can't assign resources (port)
unknown: <PNP0400> can't assign resources (port)
unknown: <PNP0700> can't assign resources (port)
Timecounter "TSC" frequency 350796635 Hz quality 800
Timecounters tick every 10.000 msec
GEOM: create disk ad0 dp=0xc26d6160
ad0: 114473MB <ST3120022A> [232581/16/63] at ata0-master UDMA33
acd0: DVDROM <TOSHIBA DVD-ROM SD-M1612> at ata0-slave PIO4
GEOM: create disk ad2 dp=0xc2733560
ad2: 6149MB <QUANTUM FIREBALL ST6.4A> [13328/15/63] at ata1-master UDMA33
acd1: CDRW <R/RW 8x4x32> at ata1-slave PIO4
Waiting 15 seconds for SCSI devices to settle
Mounting root from ufs:/dev/ad0s4a

I wouldn't mind a hint on the audio side? Card used to work fine in another 
machine running 4.7-REL (Ensoniq AudioPCI). I'm a bit loathed to mess with it 
indiscriminately 'cos toggling the UDMA on/off is a right royal pita.

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