X40 lockups- is it dying?

[Gargoyle]

I have a three year old Thinkpad X40; it's been a workhorse, but it's been through a lot of use and travel. In the past week it's started freezing up. Either it won't wake up from sleep mode and I have to force a reboot, or it freezes, generally while moving the mouse. Sometimes it freezes in the middle of a reboot.
I've done full virus and spyware scans, defragged, installed all the update patches, and run all the diagnostics available when rebooting to the "access IBM" blue button. I've updated the bios, added all the latest patches (running XP), run chkdsk (showed nothing wrong). I have about 12 or 13% free space on the HD, I can clear up to 15% if I eliminate hybernation. I've emptied out the startup folder.
The only error messages I saw in the diagnostics had to do with the parallel port; I've never used that port.

The only recent errors in the eventvwr are:

• The IP address lease 192.xxx.xxx.xxx (my wifi network) for the Network Card with network address 000CF1265D59 has been denied by the DHCP server 0.0.0.0 (The DHCP Server sent a DHCPNACK message).
  
  Timeout (30000 milliseconds) waiting for a transaction response from the WZCSVC service.
  
  Your computer has lost the lease to its IP address 10.0.0.22 on the Network Card with network address 000CF1265D59.
  
  Your computer was not able to renew its address from the network (from the DHCP Server) for the Network Card with network address 000CF1265D59. The following error occurred: The semaphore timeout period has expired. . Your computer will continue to try and obtain an address on its own from the network address (DHCP) server.

Note that the freezes also occur when I am no where near my wifi network.

There've also been some eventvwr errors about corrupt content in the index metadata (catalog.wci)

I'm going to pull out and reseat the ram, h/d, this evening, and blow out the dust inside.

Any suggestions, or am I SOL?

[K0LO]

I'm going to pull out and reseat the ram, h/d, this evening, and blow out the dust inside.

I would also download a copy of memtest86+ and run it for several hours. Bad RAM could be one of the causes of your symptoms.

[Gargoyle]

I would also download a copy of memtest86+ and run it for several hours.

Looks like that requires booting to DOS? Don't have a floppy or CD drive for this thinkpad, it seems like creating a bootable USB is a bit of a PITA, and doesn't appear that XP has a dos boot built in the way NT 4.0 did.
?

[K0LO]

memtest86+ runs from a bootable CD or floppy. The download page also lists a "pre-compiled exe file for USB key" version.

Does your ThinkPad have PC-Doctor installed? If so, try running their memory diagnostics. If not you can download the Windows version of PC-Doctor from Lenovo.

[Gargoyle]

Does your ThinkPad have PC-Doctor installed? If so, try running their memory diagnostics.

I ran that twice from the boot option, not through windows. Everything passed except parallel port: LPTI comand and data port faild base 3BC4

But I'd think that doesn't signify anything, since I've never used LPT1.

I reseated the ram, I'm doing another full backup, then I'll see how it's behaving. Thanks,