23 Mar
2004
23 Mar
'04
11:37 p.m.
----- Original Message -----
From: "Joe R." <rigdonj(a)cfl.rr.com>
To: "General Discussion: On-Topic and Off-Topic Posts"
<cctalk(a)classiccmp.org>
Sent: Wednesday, March 24, 2004 7:46 AM
Subject: 256k x 4 Re: finding old RAM
Any chance you could part with 16 of them?
I only had 2 here (from an old vga card) and those ended up in my Diamond
ISA video card (tseng et4000ax) used in my 386/40 old dos game rig.
99% of the computers I deal with use either proprietary memory SIMMs or
standard 30 pin SIMMs and up, so I haven't needed to source loose drams
before.
Teo
At 01:56 AM 3/24/04 -0500, you wrote:
a
----- Original Message -----
>>
>
>I need 16 of the following for my Amiga 2091 SCSI card (just got it with 2000HD system
today):
CMOS 256K x 4 DRAMs (44C256) rated at 120 ns or faster.
Those are EASY to find. Just go to a surplus store and grab the old VGA
type video cards. A lot of them used those chips and they're frequently
socketed. You need to check the part numbers, the 4 x 256k chips are
available with a number of different part numbers but the PNs are usually
some variation of xxxx4256-xxx.
Without memory on the card the SCSI controller can't do DMA transfers, so
its running as fast as a BIG floppy drive.
Anybody have a box of these in their parts bins?
Yeap :-) I use them in my HP Viper cards. I picked up over 200 of the
ICs in video cards in one trip to a surplus store.
Joe