As can be seen from this dmesg of NetBSD 5.1 RC 2, whilst it supports more installed memory, it is less than happy with the embedded IDE controller. I have not yet compiled a custom kernel
Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 The NetBSD Foundation, Inc. All rights reserved. Copyright (c) 1982, 1986, 1989, 1991, 1993 The Regents of the University of California. All rights reserved. NetBSD 5.1_RC2 (GENERIC) #0: Fri May 21 04:32:33 UTC 2010 builds@b8.netbsd.org:/home/builds/ab/netbsd-5-1-RC2/i386/201005210534Z-obj/home/builds/ab/netbsd-5-1-RC2/src/sys/arch/i386/compile/GENERIC total memory = 123 MB avail memory = 109 MB timecounter: Timecounters tick every 10.000 msec timecounter: Timecounter "i8254" frequency 1193182 Hz quality 100 ( ) mainbus0 (root) cpu0 at mainbus0: NS/Cyrix 586-class, id 0x540 pci0 at mainbus0 bus 0: configuration mode 1 pci0: i/o space, memory space enabled, rd/line, rd/mult, wr/inv ok pchb0 at pci0 dev 0 function 0 pchb0: vendor 0x1078 product 0x0001 (rev. 0x00) bktr0 at pci0 dev 7 function 0 bktr0: interrupting at irq 11 bktr0: Hauppauge Model 61295 B411 bktr0: Hauppauge WinCast/TV, Philips PAL I tuner, remote control. vendor 0x109e product 0x0878 (miscellaneous multimedia, revision 0x02) at pci0 dev 7 function 1 not configured rtk0 at pci0 dev 15 function 0: Realtek 8139 10/100BaseTX (rev. 0x10) rtk0: interrupting at irq 10 rtk0: Ethernet address 00:e0:c5:c9:71:25 rlphy0 at rtk0 phy 7: Realtek internal PHY rlphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto pcib0 at pci0 dev 18 function 0 pcib0: vendor 0x1078 product 0x0100 (rev. 0x00) vendor 0x1078 product 0x0101 (miscellaneous bridge) at pci0 dev 18 function 1 not configured geodeide0 at pci0 dev 18 function 2 geodeide0: AMD Geode CX5530 IDE controller (rev. 0x00) geodeide0: bus-master DMA support present geodeide0: primary channel wired to compatibility mode geodeide0: primary channel interrupting at irq 14 atabus0 at geodeide0 channel 0 geodeide0: secondary channel wired to compatibility mode geodeide0: secondary channel interrupting at irq 15 atabus1 at geodeide0 channel 1 vendor 0x1078 product 0x0103 (audio multimedia) at pci0 dev 18 function 3 not configured vga1 at pci0 dev 18 function 4: vendor 0x1078 product 0x0104 (rev. 0x00) wsdisplay0 at vga1 kbdmux 1: console (80x25, vt100 emulation) wsmux1: connecting to wsdisplay0 drm at vga1 not configured ohci0 at pci0 dev 19 function 0: vendor 0x0e11 product 0xa0f8 (rev. 0x06) intr_establish: pic pic0 pin 15: can't share type 2 with 3 ohci0: couldn't establish interrupt at irq 15 isa0 at pcib0 com0 at isa0 port 0x3f8-0x3ff irq 4: ns16550a, working fifo pckbc0 at isa0 port 0x60-0x64 pckbd0 at pckbc0 (kbd slot) pckbc0: using irq 1 for kbd slot wskbd0 at pckbd0: console keyboard, using wsdisplay0 pms0 at pckbc0 (aux slot) pckbc0: using irq 12 for aux slot wsmouse0 at pms0 mux 0 attimer0 at isa0 port 0x40-0x43: AT Timer sb0 at isa0 port 0x220-0x237 irq 5 drq 1,5: dsp v4.12 audio0 at sb0: full duplex, playback, capture, mmap, independent midi0 at sb0: SB MIDI UART (CPU-intensive output) opl0 at sb0: model OPL3 midi1 at opl0: SB Yamaha OPL3 (CPU-intensive output) pcppi0 at isa0 port 0x61 midi2 at pcppi0: PC speaker (CPU-intensive output) sysbeep0 at pcppi0 isapnp0 at isa0 port 0x279: ISA Plug 'n Play device support npx0 at isa0 port 0xf0-0xff npx0: reported by CPUID; using exception 16 attimer0: attached to pcppi0 isapnp0: no ISA Plug 'n Play devices found timecounter: Timecounter "clockinterrupt" frequency 100 Hz quality 0 wd0 at atabus0 drive 0:wd0: drive supports 1-sector PIO transfers, LBA addressing wd0: 7695 MB, 15636 cyl, 16 head, 63 sec, 512 bytes/sect x 15761088 sectors wd0: 32-bit data port wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/100) wd0(geodeide0:0:0): using PIO mode 4, DMA mode 2, Ultra-DMA mode 1 (using DMA) Kernelized RAIDframe activated pad0: outputs: 44100Hz, 16-bit, stereo audio1 at pad0: half duplex, playback, capture geodeide0:0:0: lost interrupt type: ata tc_bcount: 512 tc_skip: 0 geodeide0:0:0: bus-master DMA error: missing interrupt, status=0x30 wd0: transfer error, downgrading to PIO mode 4 wd0(geodeide0:0:0): using PIO mode 4 wd0d: DMA error reading fsbn 0 (wd0 bn 0; cn 0 tn 0 sn 0), retrying wd0: soft error (corrected) boot device: wd0 root on wd0a dumps on wd0b root file system type: ffs wsdisplay0: screen 1 added (80x25, vt100 emulation) wsdisplay0: screen 2 added (80x25, vt100 emulation) wsdisplay0: screen 3 added (80x25, vt100 emulation) wsdisplay0: screen 4 added (80x25, vt100 emulation)