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Topic |
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Flash
Full Member
Australia
637 Posts |
 Posted - 21 Apr 2003 : 06:16:19
I've been spending some quality time with my Macs this weekend, and in my rummaging around I have found four sticks of 64pin RAM (not 68 or 72 pin, but 64) These can be used in a IIfx, and i'm told they are rare as hens teeth. I have no idea what size they are but I imagine they'll be 1MB each. If anyone wants them.... drop me a line.cheers
Flash! - - - - - - - - - - - - -
A little knowledge is a dangerous thing, but it sure beats a blank stare for starting a conversation. 68k ParaMedic |
The Lightning Stalker
Full Member
USA
747 Posts |
Posted - 21 Apr 2003 : 17:57:31
I think I've got one of those. It says it's a VRAM on the back.The Lightning Stalker Performa 631CD, 7.5.5
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Apple IIc 5.25"
2 Apple IIe |
Flash
Full Member
Australia
637 Posts |
Posted - 21 Apr 2003 : 18:13:12
Like I say.... not 68 pin (VRAM), it's 64 pin RAM.
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A little knowledge is a dangerous thing, but it sure beats a blank stare for starting a conversation. 68k ParaMedic |
MrLynn
Junior Member
USA
394 Posts |
Posted - 21 Apr 2003 : 20:43:26
64-pin RAM was used in the IIfx and in one Apple laser printer (not interconvertible, BTW--you can use the IIfx RAM in the printer, but not vice-versa). I've now managed to accumulate 80MB for the eight slots in my IIfx (4x16 plus 4x4), so I won't be interested unless they're 8 or 16MB sticks. But someone else was looking for IIfx RAM a while ago--check down in the Mac II forum./Mr Lynn The dinosaurs became extinct because they didn’t have a space program.
--Larry Niven |
Trash80toG-4
NIGHT STALKER
USA
2899 Posts |
Posted - 21 Apr 2003 : 20:52:39
quote:
Like I say.... not 68 pin (VRAM), it's 64 pin RAM.
List the info on the ICs and we can probably figure out if it's IIfx RAM or IIf/IIg printer RAM from the speed listed on the chips and the size of the SIMMs from the info in the chip designation.jt  ™.
Trash Hauler: call sign: eight-ball
C.O. AC-130H SpecOps 68kMLAAF |
Flash
Full Member
Australia
637 Posts |
Posted - 22 Apr 2003 : 02:02:25
<mental note>
this would be a lot easier if you set up your scanner Flash! - you've been meaning to do that for a while....
</mental note>OK, well...where to begin? For a start the RAM was pulled from an old PC that my neighbour left sitting next to the rubbish bin - I also scored two 100MB IDE hard drives (but I left all the ISA cards in the box!) There's nine chips on each board of the 20 pin variety (10 at each end in rows of 5 on opposing sides of the chip - you know, the 'standard' sort) Eight of the chips are: KM44C100ALJ-7 , and the ninth is: HM514410AS7. The sticker on the back says "Made in Hong Kong" which is not much help! The part number listed on the sticker is: HKEN9922668 + + + + + + + + + + + + + + + + ... continued OK, so there's two pair of RAM, and looking at the second there is a bit more info. It has a different controller chip (Mitsubishi) and the RAM chips are Siemens HY8514256BJ-70, which I take to mean 256k, 70 nanosecond. What do you think jt? Edited by - Flash on 22 Apr 2003 02:10:00 |
G4from128k
Full Member
USA
873 Posts |
Posted - 22 Apr 2003 : 03:59:35
quote:
64-pin RAM was used in the IIfx and in one Apple laser printer (not interconvertible, BTW--you can use the IIfx RAM in the printer, but not vice-versa).
I can attest to the fact that the Laserwriter IISC used 64-pin SIMMs. I scavenged the SIMMs from my printer after it went the the great computer lab in the sky. Unfortunately they are low capacity (only 256kB/SIMM) and too slow (120 nS) to be of use to a IIfx.G4From128k by Day: Mild-Mannered Engineer and Trapeze(tm) Artist
by Night: Colonel of Truth, Justice, and the Macintosh Way
Reserve Officer in 68kMLA Cantankerous Coot Contingent
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Trash80toG-4
NIGHT STALKER
USA
2899 Posts |
Posted - 22 Apr 2003 : 06:31:13
quote:
OK, so there's two pair of RAM, and looking at the second there is a bit more info. It has a different controller chip (Mitsubishi) and the RAM chips are Siemens HY8514256BJ-70, which I take to mean 256k, 70 nanosecond. What do you think jt?
Sounds about right to me. They may be fast enough to put in a IIfx, but they're probably too small to bother with., even for a printer.jt ™.
Trash Hauler: call sign: eight-ball
C.O. AC-130H SpecOps 68kMLAAF |
64pin RAM
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