Received a Thinkpad 770Z http://www.thinkwiki.org/wiki/Category:770Z from ebay. It was advertised as "for parts" in unknown condition, with a mention that it came from an estate sale and condition was unknown. A bit of a risk, but for $30 shipped I took the plunge.
Plugged a power adapter in it, turned on, it gave me error 0161 and 0163. A bit of googling indicated that the likely problem was a dead CMOS battery. I located it, fortunately it's a standard CR2032 of which I have loads. The battery read 0.22V on a digital voltmeter. So I replaced it, and.. still errors 0161 and 0163 at the first boot; entered setup, set date and time, rebooted... now no errors.
I can't test it any further right now, it has no HDD and I don't have on hand any HDDs from that era (but I do have a couple on the way, probably here on Monday or so). It has no floppy drive either, but I just got one from ebay for $6, probably it will get here sometime next week.
The battery is dead, reads 0% on the small LCD after being plugged in for a full hour. Not unexpected.
All in all, not a bad haul. I have high hopes for making it a viable DOS/Win98 working machine.
(edit) Hmm, the mystery deepens. The laptop as advertised didn't have a HDD. I checked the HDD slot, and it's indeed empty. At boot, the first thing it does is pop out the CD tray if it's closed. To test if it works, I popped in the CD drive a bootable CD, whatever I could find fast (an old Ubuntu installation disk). And, lo and behold, it boots, But not the Ubuntu that I put in the drive. Instead it presents me with the boot menu of Windows NT 4. 😀 I let it boot that, and it seems that it does have a full installation of NT4 SP4 on a 2GB drive labeled C: (seems like a pretty fresh and unused install, quite vanilla except for a few utilities like Norton AV and a few games - Harry Potter and a few card games).
I don't know what this drive C: is. The HDD slot is like I said empty, and as far as I know this model of laptop has only 1 hard disk slot. maybe an internal flash drive somewhere? But given the age of the laptop it would be very unusual. Also, it will not boot without a CD in the drive, but then it doesn't boot the CD. Despite the fact that in setup the boot order is floppy, CD, HDD.
Oh, it has 256MB RAM. And I found a 3COM network card in one of the PCMCIA slots - without its dongle sadly. But I have a few other PCMCIA LAN cards if I ever need one.
(edit2) The network card in fact doesn't need a dongle, it's a 3C575 with Xjack connector. The Xjack pins are pretty badly bent, but may be salvageable with a bit of elbow grease.
Seems like I have a lot to learn about this system. BTW, the computer's name as shown in System is PLAYTHING. 😁
I/O, I/O,
It's off to disk I go,
With a bit and a byte
And a read and a write,
I/O, I/O