I thought they might be the same as the old 4256 (and possibly the 41256)
dram that we used to use in them. The chips soldered on don't have the speed
on them so I'm sure just testing some 70's and 80's will let me know if
they'll work. I'm almost into my old chip stashes in storage so maybe I'll
have an LJ III with 5 mb soon. Thanks
> -----Original Message-----
> From: owner-classiccmp_at_classiccmp.org
> [mailto:owner-classiccmp_at_classiccmp.org]On Behalf Of Ethan Dicks
> Sent: Thursday, May 03, 2001 9:52 PM
> To: classiccmp_at_classiccmp.org
> Subject: RE: 1mb x 1 memory chips for printers
>
>
>
> --- Russ Blakeman <rhblake_at_bigfoot.com> wrote:
> > So am I to assume (since I haven't dealt with loose DRAM in
> years) that the
> > HY51C4256S-C printed on the 20 pin DIP chips are 4x256, and if so anyone
> > have a source? I need at least 16 to pop this Laserjet III up
> to the full 4
> > mb. I don't imagine they are the same as the old 256k DRAMs in the older
> > PC,XT and some AT class machines...
>
> Depends on the machine. Some yes, some no. If you find an XT or AT or
> video card with 20-pin DRAMs with 4256 in the middle of the number and
> they are fast enough (don't know what yours requires, but my 3rd party
> card has 60ns parts; probably only needs 80s) they should work.
>
> -ethan
>
>
>
> =====
> Visit "The Seventh Continent"
> http://penguincentral.com/penguincentral.html
>
> __________________________________________________
> Do You Yahoo!?
> Yahoo! Auctions - buy the things you want at great prices
> http://auctions.yahoo.com/
Received on Thu May 03 2001 - 23:31:20 BST