Date: Sat, 27 Jan 2007 15:32:00 +0000
From: "Dan V" <[EMAIL PROTECTED]>
Subject: RE: [LIB] 96MB in L100/110 should work!
Ugh....just when I finally found the right module, that **** sold it to
someone else.
Continuing the Great RAM Quest......sigh.
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Date: Sun, 21 Jan 2007 13:46:36 +0000
From: "Dan V" <[EMAIL PROTECTED]>
Subject: 96MB in L100/110 should work!
Hello fellow Libretto-enthousiasts!
I bought a L110ct just a while ago and did some research on its RAM. Some
facts people might find interesting:
144 pins/140 pins?
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The L100/110 uses 60ns 66MHz 3.3V EDO DRAM SODIMMs with 144 pins. You'll
notice that there are also '140 pin' sodimms you can buy, but those also
have 144 pins. Very annoying if you try to find out the difference (like
me). Example: the pa2059u module has 140 pins on one site, 144 on the
other...
64Mbit & Chipset issue
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Also, it must be 64Mbit RAM. Thus, the module must have 8x8 or 4x16 chips
(=DEPTH x size, not the amount of chips on the module).
A lot of newer EDO modules are 128Mbit (i.e 4x32) or even 256Mbit. Those
will not work at all or, at best, will result in only half or even less RAM
being recognised.
Since the 32MB expansion module has 4x16 chips, that's what I'll use, just
to be safe. It could be that the Toshiba chipset (couldn't find ANY info on
it) supports only memory chips with a 4 bits depth.
Maximum RAM
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By the way, the reason that 96 MB is the maximum (L100/110/1050) is because
there is a 32MB module soldered on. The L1100 has a 64MB module installed,
hence its maximum RAM of 128MB. The BIOS of the L1100 and L1050 are the
same, so it should also be possible to put a total of 128MB in a L100/110,
but that would mean desoldering the 32MB module and probably damaging
things.
In theory, when the BIOS allows it, it might be possible to go over 128MB.
But you'll have to find a 128MB module with only 4 bits depth, I doubt
those exist. Another problem is that such a module is probably
double-sided, which means it probably has to be in the first bank (where
32MB module is soldered).
So i'm going to install a 64MB, 64Mbit, 144pin, 4x16, 66MHz EDO module, for
a total of 96MB.
Now, if that doesn't work, the only cause can be the BIOS, in which case I
will flash the BIOS with the Libretto L1050/1100 version, which I found on
this site:
http://www.toshiba-tro.de/internet/BIOS/biosrgt.asp <-- Has anyone
tried this already?
That should work! I can't think of one reason it wouldn't (but you guys
might, heheh).
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