ubuntu 6.10 edgy 无故死机

[netguy]

平均一到两天一次，时间不固定。没有预兆，系统日志没有反应。
就是键盘鼠标齐失效，网络也断了，屏幕停止。
Linux version 2.6.17-10-386 (root@vernadsky) (gcc version 4.1.2 20060928 (prerelease) (Ubuntu 4.1.1-13ubuntu5)) #2 Fri Oct 13 18:41:40 UTC 2006 (Ubuntu 2.6.17-10.33-386)

Disk /dev/hda: 120.0 GB, 120034123776 bytes
255 heads, 63 sectors/track, 14593 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/hda1 1 637 5116671 7 HPFS/NTFS
/dev/hda2 638 1274 5116702+ 7 HPFS/NTFS
/dev/hda3 * 1275 1882 4883760 83 Linux
/dev/hda4 1883 14593 102101107+ 5 Extended
/dev/hda5 1883 2004 979933+ 82 Linux swap / Solaris
/dev/hda6 2005 14593 101121111 83 Linux

硬件：P4 2.8G
RAM: 1G
硬盘：Seagate 120G
$ lspci
00:00.0 Host bridge: Intel Corporation 82865G/PE/P DRAM Controller/Host-Hub Interface (rev 02)
00:01.0 PCI bridge: Intel Corporation 82865G/PE/P PCI to AGP Controller (rev 02)
00:1d.0 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #1 (rev 02)
00:1d.1 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #2 (rev 02)
00:1d.7 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB2 EHCI Controller (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev c2)
00:1f.0 ISA bridge: Intel Corporation 82801EB/ER (ICH5/ICH5R) LPC Interface Bridge (rev 02)
00:1f.1 IDE interface: Intel Corporation 82801EB/ER (ICH5/ICH5R) IDE Controller (rev 02)
00:1f.3 SMBus: Intel Corporation 82801EB/ER (ICH5/ICH5R) SMBus Controller (rev 02)
00:1f.5 Multimedia audio controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) AC'97 Audio Controller (rev 02)
01:00.0 VGA compatible controller: nVidia Corporation NV11 [GeForce2 MX/MX 400] (rev a1)
02:09.0 USB Controller: ALi Corporation USB 1.1 Controller (rev 03)
02:09.1 USB Controller: ALi Corporation USB 1.1 Controller (rev 03)
02:09.2 USB Controller: ALi Corporation USB 1.1 Controller (rev 03)
02:09.3 USB Controller: ALi Corporation USB 2.0 Controller (rev 01)
02:0c.0 SCSI storage controller: Adaptec AHA-3960D / AIC-7899A U160/m (rev 01)
02:0c.1 SCSI storage controller: Adaptec AHA-3960D / AIC-7899A U160/m (rev 01)
02:0d.0 Ethernet controller: 3Com Corporation 3c905 100BaseTX [Boomerang]