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Re: Drive upgrade on Thinkpads



> 512 MB is an IDE specification limit.  The newer IDE drives get around it by
> using Western Digital's enhanced IDE specification, which uses the BIOS.
> 32-bit disk access bypasses the BIOS so it won't work.  This is also why the
> TP750 will need a flash BIOS upgrade before it can use the larger drives.
> (The 360 and 755 already have the updated BIOS)

Ah, that explains it. Actually, at first, the problem looked worse than it
was, because I had the 1024x768x256 driver installed. When the WfW driver
complained, it tried to write its message in text mode, but that just
garbled the video mode. It then waited for me to press Enter, but I had
no idea it was waiting... anyway, you get the idea.

That might be handy to remember in other cases, too -- if Windows
appears to hang silently at startup, make sure you have the standard VGA
driver installed so you can see any potential driver startup complaints.

> If you really really want 32-bit disk access, you should be able to
> partition your disk as 512 MB (waste the remaining 28 MB).

What? Waste a whole 28 MB? I don't think so! :-)  But actually, my primary
DOS partition is currently only 360 megabytes -- I've set aside the rest
for another operating system.  I may try more experiments when I have
time, though.

> When did Micro Machines get the 540 MB drives?  They didn't have any a month
> ago.

Well, I called them asking about the 340 MB devices, and they didn't have
any, but said they could get them, so I just asked them if they could
get a 540 MB drive instead. No problem -- they shipped it within a couple
of days of my placing the order. I'm a satisfied customer.

--
Tim Tyhurst                  tim@excelsior.com