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Need DRAM chips

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rhblake＠bigfoot.com

7 Jul 2001 7 Jul '01

3:54 p.m.

In search of 4 DRAM chips for video expansion on built-in S3 card. The ones in it are 44C256 at 60 ns and the 4 empty DIP sockets are 20 pin (10 pins each side). Anyone have 4 in their stash and want to part with them - and if so how much? Please email direct.

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jpero＠sympatico.ca

7 Jul 7 Jul

12:16 p.m.

From: "Russ Blakeman" <rhblake(a)bigfoot.com> To: "Classic computers message group" <classiccmp(a)classiccmp.org> Subject: Need DRAM chips Date: Sat, 7 Jul 2001 22:54:16 -0500 Importance: Normal Reply-to: classiccmp(a)classiccmp.org

In search of 4 DRAM chips for video expansion on built-in S3 card. The ones in it are 44C256 at 60 ns and the 4 empty DIP sockets are 20 pin (10 pins each side). Anyone have 4 in their stash and want to part with them - and if so how much?

Carefully!! What brand of this memory chips with this 44C256? There were dual ported versions, 256K x 16bit, EDO or FPM, some tad different in specs. Cheers, Wizard

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rhblake＠bigfoot.com

4:39 p.m.

The chips on the mainboard are probably different in that they are a smaller profile but here's what they have on them: .. KOREA ... 326Y ... KM44C256J-6 .. There are 4 of them soldered to the board, and they give the S3 section 512K RAM with 256 color capability. The soldered chips are 20 pin but each side has two sets of 5 pins with a space between them unlike the bare sockets that are a symmetrical 10 on each side and longer than the soldered on ones. 4 chips are supposed to brig it to 1mb and allow more color and (I hope) higher resolution without a color loss). It's a 1993 486DX2-66 server so that might give you an idea. I know it's not quite a classic (10 yr old) yet but it's close enough and I know the people here know more than most in the chip level stuff. I have no idea what the symbol made up of dots is, I've been out of the component level field too long and my "memory banks" are toast right now after a couple beers (been landscaping in the hot sun all day and it's time to relax) -> -----Original Message----- -> From: owner-classiccmp(a)classiccmp.org -> [mailto:owner-classiccmp@classiccmp.org]On Behalf Of jpero(a)sympatico.ca -> Sent: Saturday, July 07, 2001 7:16 PM -> To: classiccmp(a)classiccmp.org -> Subject: Re: Need DRAM chips -> -> -> > From: "Russ Blakeman" <rhblake(a)bigfoot.com> -> > To: "Classic computers message group" -> <classiccmp(a)classiccmp.org> -> > Subject: Need DRAM chips -> > Date: Sat, 7 Jul 2001 22:54:16 -0500 -> > Importance: Normal -> > Reply-to: classiccmp(a)classiccmp.org -> -> > In search of 4 DRAM chips for video expansion on built-in S3 -> card. The ones -> > in it are 44C256 at 60 ns and the 4 empty DIP sockets are 20 -> pin (10 pins -> > each side). Anyone have 4 in their stash and want to part with -> them - and if -> > so how much? -> > -> -> Carefully!! What brand of this memory chips with this 44C256? -> There were dual ported versions, 256K x 16bit, EDO or FPM, some tad -> different in specs. -> -> Cheers, -> -> Wizard

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edick＠idcomm.com

6:41 p.m.

You may have an easy time finding these for next to no cost at all if you find some 3-chip 256K-byte 30-pin SIMMs. You can remove two chips of this type from each of them. Dick ----- Original Message ----- From: "Russ Blakeman" <rhblake(a)bigfoot.com> To: <classiccmp(a)classiccmp.org> Sent: Saturday, July 07, 2001 10:39 PM Subject: RE: Need DRAM chips

The chips on the mainboard are probably different in that they are a smaller profile but here's what they have on them: .. KOREA ... 326Y ... KM44C256J-6 .. There are 4 of them soldered to the board, and they give the S3 section 512K RAM with 256 color capability. The soldered chips are 20 pin but each side has two sets of 5 pins with a space between them unlike the bare sockets that are a symmetrical 10 on each side and longer than the soldered on ones. 4 chips are supposed to brig it to 1mb and allow more color and (I hope) higher resolution without a color loss). It's a 1993 486DX2-66 server so that might give you an idea. I know it's not quite a classic (10 yr old) yet but it's close enough and I know the people here know more than most in the chip level stuff. I have no idea what the symbol made up of dots is, I've been out of the component level field too long and my "memory banks" are toast right now after a couple beers (been landscaping in the hot sun all day and it's time to relax) -> -----Original Message----- -> From: owner-classiccmp(a)classiccmp.org -> [mailto:owner-classiccmp@classiccmp.org]On Behalf Of jpero(a)sympatico.ca -> Sent: Saturday, July 07, 2001 7:16 PM -> To: classiccmp(a)classiccmp.org -> Subject: Re: Need DRAM chips -> -> -> > From: "Russ Blakeman" <rhblake(a)bigfoot.com> -> > To: "Classic computers message group" -> <classiccmp(a)classiccmp.org> -> > Subject: Need DRAM chips -> > Date: Sat, 7 Jul 2001 22:54:16 -0500 -> > Importance: Normal -> > Reply-to: classiccmp(a)classiccmp.org -> -> > In search of 4 DRAM chips for video expansion on built-in S3 -> card. The ones -> > in it are 44C256 at 60 ns and the 4 empty DIP sockets are 20 -> pin (10 pins -> > each side). Anyone have 4 in their stash and want to part with -> them - and if -> > so how much? -> > -> -> Carefully!! What brand of this memory chips with this 44C256? -> There were dual ported versions, 256K x 16bit, EDO or FPM, some tad -> different in specs. -> -> Cheers, -> -> Wizard

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jpero＠sympatico.ca

3:12 p.m.

From: "Richard Erlacher" <edick(a)idcomm.com> To: <classiccmp(a)classiccmp.org> Subject: Re: Need DRAM chips Date: Sun, 8 Jul 2001 00:41:16 -0600 Organization: Erlacher Associates Reply-to: classiccmp(a)classiccmp.org

You may have an easy time finding these for next to no cost at all if you find some 3-chip 256K-byte 30-pin SIMMs. You can remove two chips of this type from each of them.

Hi, Now bit better details here... Okay, if it is 20pin DIP sockets, fetch 256K x 4 bit 60ns or 70ns DIPs (the ramdacs on these old computers is not that high to require 60ns). Off a old video cards is easiest, very common item. If it's SOJ, unsoldering chips from 2 or 3 chip 256K pair of simms is required. I haev not seen 20 pin SOJ sockets. This SOJ are soldered on directly to PCB or regular DIP sockets. 1M will only give you 1024x768 at 16 or 256 color I think. You might want to move up to 2M video card if u need windows acceleration and more color at 1024x768. S3 Trio 64V+ is very nice one if fully expanded to 2M. Most of 1M maxed video cards aren't as fully featured compared to 2M video chipsets. Cheers, Wizard

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edick＠idcomm.com

5:53 p.m.

What's probably more important is the package. They come in various shapes and sizes. the 44C256 was once pretty popular. I bet half the old SVGA boards I handled today had those on them. Of course the other half didn't ... Some were in SO packages, though, while others might have been DIP's. Dick ----- Original Message ----- From: <jpero(a)sympatico.ca> To: <classiccmp(a)classiccmp.org> Sent: Saturday, July 07, 2001 6:16 PM Subject: Re: Need DRAM chips

From: "Russ Blakeman" <rhblake(a)bigfoot.com> To: "Classic computers message group" <classiccmp(a)classiccmp.org> Subject: Need DRAM chips Date: Sat, 7 Jul 2001 22:54:16 -0500 Importance: Normal Reply-to: classiccmp(a)classiccmp.org

In search of 4 DRAM chips for video expansion on built-in S3 card. The ones in it are 44C256 at 60 ns and the 4 empty DIP sockets are 20 pin (10 pins each side). Anyone have 4 in their stash and want to part with them - and if so how much?

Carefully!! What brand of this memory chips with this 44C256? There were dual ported versions, 256K x 16bit, EDO or FPM, some tad different in specs. Cheers, Wizard

Reply

rhblake＠bigfoot.com

11:16 p.m.

Thanks for this and the replaies from you and others. I didn't think of looking on the SIMMs but I have a box of old RAM Expansion cards I need to look through as well. I also have one message direct that states that they may help. See- I knew the people on this list knew their stuff. -> -----Original Message----- -> From: owner-classiccmp(a)classiccmp.org -> [mailto:owner-classiccmp@classiccmp.org]On Behalf Of Richard Erlacher -> Sent: Sunday, July 08, 2001 12:54 AM -> To: classiccmp(a)classiccmp.org -> Subject: Re: Need DRAM chips -> -> -> What's probably more important is the package. They come in -> various shapes and -> sizes. the 44C256 was once pretty popular. I bet half the old -> SVGA boards I -> handled today had those on them. Of course the other half didn't ... -> -> Some were in SO packages, though, while others might have been DIP's. -> -> Dick -> -> ----- Original Message ----- -> From: <jpero(a)sympatico.ca> -> To: <classiccmp(a)classiccmp.org> -> Sent: Saturday, July 07, 2001 6:16 PM -> Subject: Re: Need DRAM chips -> -> -> > > From: "Russ Blakeman" <rhblake(a)bigfoot.com> -> > > To: "Classic computers message group" -> <classiccmp(a)classiccmp.org> -> > > Subject: Need DRAM chips -> > > Date: Sat, 7 Jul 2001 22:54:16 -0500 -> > > Importance: Normal -> > > Reply-to: classiccmp(a)classiccmp.org -> > -> > > In search of 4 DRAM chips for video expansion on built-in S3 -> card. The ones -> > > in it are 44C256 at 60 ns and the 4 empty DIP sockets are 20 -> pin (10 pins -> > > each side). Anyone have 4 in their stash and want to part -> with them - and if -> > > so how much? -> > > -> > -> > Carefully!! What brand of this memory chips with this 44C256? -> > There were dual ported versions, 256K x 16bit, EDO or FPM, some tad -> > different in specs. -> > -> > Cheers, -> > -> > Wizard -> > -> > ->

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rhblake＠bigfoot.com

4:05 p.m.

I have since found that these are 256k x 4 dram and any suitable substitute will do. They'll be going into a Dell 4066/XE server. -----Original Message----- From: owner-classiccmp(a)classiccmp.org [mailto:owner-classiccmp@classiccmp.org]On Behalf Of Russ Blakeman Sent: Saturday, July 07, 2001 10:54 PM To: Classic computers message group Subject: Need DRAM chips In search of 4 DRAM chips for video expansion on built-in S3 card. The ones in it are 44C256 at 60 ns and the 4 empty DIP sockets are 20 pin (10 pins each side). Anyone have 4 in their stash and want to part with them - and if so how much? Please email direct.

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edick＠idcomm.com
jpero＠sympatico.ca
rhblake＠bigfoot.com