novaBBS - comp.sys.ibm.ps2.hardware - Memory modules compatible with models 50 and 55SX

Memory modules compatible with models 50 and 55SX

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Date: Sat, 22 May 2021 00:44:09 -0700 (PDT)
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Subject: Memory modules compatible with models 50 and 55SX
From: supp...@wow-mania.com (WoW-Mania Support)
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by: WoW-Mania Support - Sat, 22 May 2021 07:44 UTC

Hi there,

I have been struggling to find 4MB modules for my machines/adapters...
I have a model 50Z and a 55SX and a couple of Kingston KTM-609/16 and wanted to get some 4MB to complete the allowed 16MB on them.

As far as I could find only these are compatible...

IBM 4MB 79F1003 85ns
IBM 4MB 87F9980 80ns
and
Kingston KTM-4000/M70 P/N 34F2933 93F5794 4MB

Unfortunately, they have been quite difficult to find...

I found two similar ones on e-bay:
https://www.ebay.co.uk/itm/274082998279
https://www.ebay.co.uk/itm/274774611332

Would any of these potentially work?

Thanks a lot for the help.

Re: Memory modules compatible with models 50 and 55SX

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Subject: Re: Memory modules compatible with models 50 and 55SX
From: wbstcla...@gmail.com (WBSTClarke)
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by: WBSTClarke - Sat, 22 May 2021 09:36 UTC

On Saturday, 22 May 2021 at 08:44:10 UTC+1, WoW-Mania Support wrote:
> Hi there,
>
> I have been struggling to find 4MB modules for my machines/adapters...
> I have a model 50Z and a 55SX and a couple of Kingston KTM-609/16 and wanted to get some 4MB to complete the allowed 16MB on them.
>
> As far as I could find only these are compatible...
>
> IBM 4MB 79F1003 85ns
> IBM 4MB 87F9980 80ns
> and
> Kingston KTM-4000/M70 P/N 34F2933 93F5794 4MB
>
> Unfortunately, they have been quite difficult to find...

I found two similar ones on e-bay:
https://www.ebay.co.uk/itm/274082998279
The "E" on the label indicates ECC, so incompatible.

https://www.ebay.co.uk/itm/274774611332
1Mx40(bit) also indicates ECC, but incompatible with *any* PS/2, which use 39-bit ECC where supported.

Re: Memory modules compatible with models 50 and 55SX

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Subject: Re: Memory modules compatible with models 50 and 55SX
From: wbstcla...@gmail.com (WBSTClarke)
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by: WBSTClarke - Sat, 22 May 2021 09:51 UTC

On Saturday, 22 May 2021 at 10:36:42 UTC+1, WBSTClarke wrote:
> On Saturday, 22 May 2021 at 08:44:10 UTC+1, WoW-Mania Support wrote:
> > Hi there,
> >
> > I have been struggling to find 4MB modules for my machines/adapters...
> > I have a model 50Z and a 55SX and a couple of Kingston KTM-609/16 and wanted to get some 4MB to complete the allowed 16MB on them.
> >
> > As far as I could find only these are compatible...
> >
> > IBM 4MB 79F1003 85ns
> > IBM 4MB 87F9980 80ns
> > and
> > Kingston KTM-4000/M70 P/N 34F2933 93F5794 4MB
> >
> > Unfortunately, they have been quite difficult to find...
>
> I found two similar ones on e-bay:
> https://www.ebay.co.uk/itm/274082998279
> The "E" on the label indicates ECC, so incompatible.
>
> https://www.ebay.co.uk/itm/274774611332
> 1Mx40(bit) also indicates ECC, but incompatible with *any* PS/2, which use 39-bit ECC where supported.

https://www.ebay.co.uk/itm/284239723957
The example picture shows tin contacts and 8 chips (implying Non-Parity), but the 1Mx36(-bit) description properly indicates Parity SIMMs. PD coding is unknown and I'd ask about gold-plated contacts (for preference) and R1-R4 solder points for faking the PD coding, plus the chips' *actual* access time (<=80ns) before buying.

Re: Memory modules compatible with models 50 and 55SX

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Subject: Re: Memory modules compatible with models 50 and 55SX
From: supp...@wow-mania.com (WoW-Mania Support)
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by: WoW-Mania Support - Sat, 22 May 2021 10:57 UTC

On Saturday, 22 May 2021 at 10:51:51 UTC+1, WBSTClarke wrote:
> On Saturday, 22 May 2021 at 10:36:42 UTC+1, WBSTClarke wrote:
> > On Saturday, 22 May 2021 at 08:44:10 UTC+1, WoW-Mania Support wrote:
> > > Hi there,
> > >
> > > I have been struggling to find 4MB modules for my machines/adapters....
> > > I have a model 50Z and a 55SX and a couple of Kingston KTM-609/16 and wanted to get some 4MB to complete the allowed 16MB on them.
> > >
> > > As far as I could find only these are compatible...
> > >
> > > IBM 4MB 79F1003 85ns
> > > IBM 4MB 87F9980 80ns
> > > and
> > > Kingston KTM-4000/M70 P/N 34F2933 93F5794 4MB
> > >
> > > Unfortunately, they have been quite difficult to find...
> >
> > I found two similar ones on e-bay:
> > https://www.ebay.co.uk/itm/274082998279
> > The "E" on the label indicates ECC, so incompatible.
> >
> > https://www.ebay.co.uk/itm/274774611332
> > 1Mx40(bit) also indicates ECC, but incompatible with *any* PS/2, which use 39-bit ECC where supported.
> https://www.ebay.co.uk/itm/284239723957
> The example picture shows tin contacts and 8 chips (implying Non-Parity), but the 1Mx36(-bit) description properly indicates Parity SIMMs. PD coding is unknown and I'd ask about gold-plated contacts (for preference) and R1-R4 solder points for faking the PD coding, plus the chips' *actual* access time (<=80ns) before buying.

Thanks a lot for the detailed info.
Does it matter if it is double-sided or single-sided?
I found this one...
https://www.ebay.co.uk/itm/284258515327

Would it be OK?

Thanks a lot!

Re: Memory modules compatible with models 50 and 55SX

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Subject: Re: Memory modules compatible with models 50 and 55SX
From: supp...@wow-mania.com (WoW-Mania Support)
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by: WoW-Mania Support - Sat, 22 May 2021 11:08 UTC

On Saturday, 22 May 2021 at 11:57:51 UTC+1, WoW-Mania Support wrote:
> On Saturday, 22 May 2021 at 10:51:51 UTC+1, WBSTClarke wrote:
> > On Saturday, 22 May 2021 at 10:36:42 UTC+1, WBSTClarke wrote:
> > > On Saturday, 22 May 2021 at 08:44:10 UTC+1, WoW-Mania Support wrote:
> > > > Hi there,
> > > >
> > > > I have been struggling to find 4MB modules for my machines/adapters....
> > > > I have a model 50Z and a 55SX and a couple of Kingston KTM-609/16 and wanted to get some 4MB to complete the allowed 16MB on them.
> > > >
> > > > As far as I could find only these are compatible...
> > > >
> > > > IBM 4MB 79F1003 85ns
> > > > IBM 4MB 87F9980 80ns
> > > > and
> > > > Kingston KTM-4000/M70 P/N 34F2933 93F5794 4MB
> > > >
> > > > Unfortunately, they have been quite difficult to find...
> > >
> > > I found two similar ones on e-bay:
> > > https://www.ebay.co.uk/itm/274082998279
> > > The "E" on the label indicates ECC, so incompatible.
> > >
> > > https://www.ebay.co.uk/itm/274774611332
> > > 1Mx40(bit) also indicates ECC, but incompatible with *any* PS/2, which use 39-bit ECC where supported.
> > https://www.ebay.co.uk/itm/284239723957
> > The example picture shows tin contacts and 8 chips (implying Non-Parity), but the 1Mx36(-bit) description properly indicates Parity SIMMs. PD coding is unknown and I'd ask about gold-plated contacts (for preference) and R1-R4 solder points for faking the PD coding, plus the chips' *actual* access time (<=80ns) before buying.
> Thanks a lot for the detailed info.
> Does it matter if it is double-sided or single-sided?
> I found this one...
> https://www.ebay.co.uk/itm/284258515327
>
> Would it be OK?
>
> Thanks a lot!
Another potential one?
https://www.ebay.co.uk/itm/144040392059

Re: Memory modules compatible with models 50 and 55SX

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Subject: Re: Memory modules compatible with models 50 and 55SX
From: wbstcla...@gmail.com (WBSTClarke)
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by: WBSTClarke - Sat, 22 May 2021 13:08 UTC

Single-sided is usual for 4MB size, although there may be 4 lower-capacity Parity chips on the reverse of some designs.
> I found this one...
> https://www.ebay.co.uk/itm/284258515327
>
> Would it be OK?

NO! "Non-Parity" and "EDO" (Extended Data Out) are definite No-Nos as descriptors.

Re: Memory modules compatible with models 50 and 55SX

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Subject: Re: Memory modules compatible with models 50 and 55SX
From: wbstcla...@gmail.com (WBSTClarke)
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by: WBSTClarke - Sat, 22 May 2021 13:09 UTC

On Saturday, 22 May 2021 at 12:08:19 UTC+1, WoW-Mania Support wrote:
> On Saturday, 22 May 2021 at 11:57:51 UTC+1, WoW-Mania Support wrote:
> > On Saturday, 22 May 2021 at 10:51:51 UTC+1, WBSTClarke wrote:
> > > On Saturday, 22 May 2021 at 10:36:42 UTC+1, WBSTClarke wrote:
> > > > On Saturday, 22 May 2021 at 08:44:10 UTC+1, WoW-Mania Support wrote:
> > > > > Hi there,
> > > > >
> > > > > I have been struggling to find 4MB modules for my machines/adapters...
> > > > > I have a model 50Z and a 55SX and a couple of Kingston KTM-609/16 and wanted to get some 4MB to complete the allowed 16MB on them.
> > > > >
> > > > > As far as I could find only these are compatible...
> > > > >
> > > > > IBM 4MB 79F1003 85ns
> > > > > IBM 4MB 87F9980 80ns
> > > > > and
> > > > > Kingston KTM-4000/M70 P/N 34F2933 93F5794 4MB
> > > > >
> > > > > Unfortunately, they have been quite difficult to find...
> > > >
> > > > I found two similar ones on e-bay:
> > > > https://www.ebay.co.uk/itm/274082998279
> > > > The "E" on the label indicates ECC, so incompatible.
> > > >
> > > > https://www.ebay.co.uk/itm/274774611332
> > > > 1Mx40(bit) also indicates ECC, but incompatible with *any* PS/2, which use 39-bit ECC where supported.
> > > https://www.ebay.co.uk/itm/284239723957
> > > The example picture shows tin contacts and 8 chips (implying Non-Parity), but the 1Mx36(-bit) description properly indicates Parity SIMMs. PD coding is unknown and I'd ask about gold-plated contacts (for preference) and R1-R4 solder points for faking the PD coding, plus the chips' *actual* access time (<=80ns) before buying.
> > Thanks a lot for the detailed info.
> > Does it matter if it is double-sided or single-sided?
> > I found this one...
> > https://www.ebay.co.uk/itm/284258515327
> >
> > Would it be OK?
> >
> > Thanks a lot!
> Another potential one?
> https://www.ebay.co.uk/itm/144040392059

As above. No.

Re: Memory modules compatible with models 50 and 55SX

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Subject: Re: Memory modules compatible with models 50 and 55SX
From: wbstcla...@gmail.com (WBSTClarke)
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by: WBSTClarke - Sat, 22 May 2021 13:27 UTC

On Saturday, 22 May 2021 at 14:09:22 UTC+1, WBSTClarke wrote:
> On Saturday, 22 May 2021 at 12:08:19 UTC+1, WoW-Mania Support wrote:
> > On Saturday, 22 May 2021 at 11:57:51 UTC+1, WoW-Mania Support wrote:
> > > On Saturday, 22 May 2021 at 10:51:51 UTC+1, WBSTClarke wrote:
> > > > On Saturday, 22 May 2021 at 10:36:42 UTC+1, WBSTClarke wrote:
> > > > > On Saturday, 22 May 2021 at 08:44:10 UTC+1, WoW-Mania Support wrote:
> > > > > > Hi there,
> > > > > >
> > > > > > I have been struggling to find 4MB modules for my machines/adapters...
> > > > > > I have a model 50Z and a 55SX and a couple of Kingston KTM-609/16 and wanted to get some 4MB to complete the allowed 16MB on them.
> > > > > >
> > > > > > As far as I could find only these are compatible...
> > > > > >
> > > > > > IBM 4MB 79F1003 85ns
> > > > > > IBM 4MB 87F9980 80ns
> > > > > > and
> > > > > > Kingston KTM-4000/M70 P/N 34F2933 93F5794 4MB
> > > > > >
> > > > > > Unfortunately, they have been quite difficult to find...
> > > > >
> > > > > I found two similar ones on e-bay:
> > > > > https://www.ebay.co.uk/itm/274082998279
> > > > > The "E" on the label indicates ECC, so incompatible.
> > > > >
> > > > > https://www.ebay.co.uk/itm/274774611332
> > > > > 1Mx40(bit) also indicates ECC, but incompatible with *any* PS/2, which use 39-bit ECC where supported.
> > > > https://www.ebay.co.uk/itm/284239723957
> > > > The example picture shows tin contacts and 8 chips (implying Non-Parity), but the 1Mx36(-bit) description properly indicates Parity SIMMs. PD coding is unknown and I'd ask about gold-plated contacts (for preference) and R1-R4 solder points for faking the PD coding, plus the chips' *actual* access time (<=80ns) before buying.
> > > Thanks a lot for the detailed info.
> > > Does it matter if it is double-sided or single-sided?
> > > I found this one...
> > > https://www.ebay.co.uk/itm/284258515327
> > >
> > > Would it be OK?
> > >
> > > Thanks a lot!
> > Another potential one?
> > https://www.ebay.co.uk/itm/144040392059
> As above. No.

Although eBay has become shark-infested waters, especially for U.S.-based greed mongers, shipping costs and import duties, look at these 70ns gold parity SIMMs. They have all 4 resistor spots, so adding a bridge to the missing place would change it from 70ns PD (FRU 92F0105) to 80ns PD (FRU 92F3337):
https://www.ebay.co.uk/itm/71F7010-IBM-4002-701X-92F0105-4MB-1x-4MB-Memory-SIMM-/162346322840

An old cross-reference by Bob Eager:
https://www.tavi.co.uk/ps2pages/ohland/MemoryReference.htm

Re: Memory modules compatible with models 50 and 55SX

<s8bof7$ihi$1@gioia.aioe.org>

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From: you.want...@ask.for.it (JWR)
Newsgroups: comp.sys.ibm.ps2.hardware
Subject: Re: Memory modules compatible with models 50 and 55SX
Date: Sat, 22 May 2021 22:10:16 +0200
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by: JWR - Sat, 22 May 2021 20:10 UTC

On 22-05-2021 09:44, WoW-Mania Support wrote:
> Hi there,
>
> I have been struggling to find 4MB modules for my machines/adapters...
> I have a model 50Z and a 55SX and a couple of Kingston KTM-609/16 and wanted to get some 4MB to complete the allowed 16MB on them.
>
> As far as I could find only these are compatible...
>
> IBM 4MB 79F1003 85ns
> IBM 4MB 87F9980 80ns
> and
> Kingston KTM-4000/M70 P/N 34F2933 93F5794 4MB
>
> Unfortunately, they have been quite difficult to find...
>
> I found two similar ones on e-bay:
> https://www.ebay.co.uk/itm/274082998279
> https://www.ebay.co.uk/itm/274774611332
>
> Would any of these potentially work?
>
> Thanks a lot for the help.
>
>
>
>
>
Hi,

Maybe these tables will help:

http://ps-2.kev009.com/eprmhtml/eprm/f232.htm

Your 4MB modules are not mentioned for your 50Z or 55SX.

--
Jelte,
Admirer of the letter of IBM with blue Ishiki

Re: Memory modules compatible with models 50 and 55SX

<99c156ea-fe9d-4535-96ee-ecf62885f9a3n@googlegroups.com>

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Subject: Re: Memory modules compatible with models 50 and 55SX
From: wbstcla...@gmail.com (WBSTClarke)
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by: WBSTClarke - Sun, 23 May 2021 15:21 UTC

On Saturday, 22 May 2021 at 21:10:24 UTC+1, JWR wrote:
>
> Hi,
>
> Maybe these tables will help:
>
> http://ps-2.kev009.com/eprmhtml/eprm/f232.htm
>
> Your 4MB modules are not mentioned for your 50Z or 55SX.

Jelte, the 55SX should support 4MB 80ns Parity SIMMs
Right Table - Entry 15

Cheers,
WBST

Re: Memory modules compatible with models 50 and 55SX

<s8e4rh$q1t$1@gioia.aioe.org>

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Subject: Re: Memory modules compatible with models 50 and 55SX
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by: JWR - Sun, 23 May 2021 17:53 UTC

On 23-05-2021 17:21, WBSTClarke wrote:
> On Saturday, 22 May 2021 at 21:10:24 UTC+1, JWR wrote:
>>
>> Hi,
>>
>> Maybe these tables will help:
>>
>> http://ps-2.kev009.com/eprmhtml/eprm/f232.htm
>>
>> Your 4MB modules are not mentioned for your 50Z or 55SX.
>
> Jelte, the 55SX should support 4MB 80ns Parity SIMMs
> Right Table - Entry 15
>
> Cheers,
> WBST
>
Hi Tim,

True. Also true: the modules Fernando mentioned are not among them:

> As far as I could find only these are compatible...
>
> IBM 4MB 79F1003 85ns ==> entry 09 only for PS/1 and 8543 LAPTOP (same PD as entry 15 though!)
> IBM 4MB 87F9980 80ns ==> not found, but..

according to https://eprm.ardent-tool.com/eprmx/12545.htm

partno 87F9977 corresponds to FRU 87F9980 and

partno 87F9977 is listed at entry 15 as Opt P/N.

So I guess that leaves:
79F1003 : not usable for 50Z and 55SX
87F9977 : only usable for 55SX

--
Jelte,
Admirer of the letter of IBM with blue Ishiki

Re: Memory modules compatible with models 50 and 55SX

<2f3bc78d-3011-406b-a363-bea0450b5c71n@googlegroups.com>

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Subject: Re: Memory modules compatible with models 50 and 55SX
From: wbstcla...@gmail.com (WBSTClarke)
Injection-Date: Sun, 23 May 2021 19:46:33 +0000
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by: WBSTClarke - Sun, 23 May 2021 19:46 UTC

On Sunday, 23 May 2021 at 18:54:02 UTC+1, JWR wrote:
> On 23-05-2021 17:21, WBSTClarke wrote:
> > On Saturday, 22 May 2021 at 21:10:24 UTC+1, JWR wrote:
> >>
> >> Hi,
> >>
> >> Maybe these tables will help:
> >>
> >> http://ps-2.kev009.com/eprmhtml/eprm/f232.htm
> >>
> >> Your 4MB modules are not mentioned for your 50Z or 55SX.
> >
> > Jelte, the 55SX should support 4MB 80ns Parity SIMMs
> > Right Table - Entry 15
> >
> > Cheers,
> > WBST
> >
> Hi Tim,
>
> True. Also true: the modules Fernando mentioned are not among them:
> > As far as I could find only these are compatible...
> >
> > IBM 4MB 79F1003 85ns ==> entry 09 only for PS/1 and 8543 LAPTOP (same PD as entry 15 though!)
> > IBM 4MB 87F9980 80ns ==> not found, but..
>
> according to https://eprm.ardent-tool.com/eprmx/12545.htm
>
> partno 87F9977 corresponds to FRU 87F9980 and
>
> partno 87F9977 is listed at entry 15 as Opt P/N.
>
> So I guess that leaves:
> 79F1003 : not usable for 50Z and 55SX
> 87F9977 : only usable for 55SX
> --
> Jelte,
> Admirer of the letter of IBM with blue Ishiki

To my knowledge, IBM never marketed a 4MB 85ns Parity SIMM, at least not for the PS/2 range.

eBay descriptions often use IBM, PS/2 etc. keywords indiscriminately for *any old* 72-pin SIMM. 32-bit, Non-Parity, EDO and/or ECC keywords being warnings against them (except for the few Models that support 39-bit ECC SIMMs, 40-bit being exclusively used in RS/6000s) tin-plated contacts likewise. Many other or later IBM systems have used different RAM requirements, and with the multiple P/Ns (MKT, OPT, FRU etc.) for each, the potential number of different keywords becomes difficult to search for or eliminate.

Re: Memory modules compatible with models 50 and 55SX

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Subject: Re: Memory modules compatible with models 50 and 55SX
From: supp...@wow-mania.com (WoW-Mania Support)
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by: WoW-Mania Support - Wed, 26 May 2021 15:09 UTC

On Sunday, 23 May 2021 at 20:46:33 UTC+1, WBSTClarke wrote:
> On Sunday, 23 May 2021 at 18:54:02 UTC+1, JWR wrote:
> > On 23-05-2021 17:21, WBSTClarke wrote:
> > > On Saturday, 22 May 2021 at 21:10:24 UTC+1, JWR wrote:
> > >>
> > >> Hi,
> > >>
> > >> Maybe these tables will help:
> > >>
> > >> http://ps-2.kev009.com/eprmhtml/eprm/f232.htm
> > >>
> > >> Your 4MB modules are not mentioned for your 50Z or 55SX.
> > >
> > > Jelte, the 55SX should support 4MB 80ns Parity SIMMs
> > > Right Table - Entry 15
> > >
> > > Cheers,
> > > WBST
> > >
> > Hi Tim,
> >
> > True. Also true: the modules Fernando mentioned are not among them:
> > > As far as I could find only these are compatible...
> > >
> > > IBM 4MB 79F1003 85ns ==> entry 09 only for PS/1 and 8543 LAPTOP (same PD as entry 15 though!)
> > > IBM 4MB 87F9980 80ns ==> not found, but..
> >
> > according to https://eprm.ardent-tool.com/eprmx/12545.htm
> >
> > partno 87F9977 corresponds to FRU 87F9980 and
> >
> > partno 87F9977 is listed at entry 15 as Opt P/N.
> >
> > So I guess that leaves:
> > 79F1003 : not usable for 50Z and 55SX
> > 87F9977 : only usable for 55SX
> > --
> > Jelte,
> > Admirer of the letter of IBM with blue Ishiki
> To my knowledge, IBM never marketed a 4MB 85ns Parity SIMM, at least not for the PS/2 range.
>
> eBay descriptions often use IBM, PS/2 etc. keywords indiscriminately for *any old* 72-pin SIMM. 32-bit, Non-Parity, EDO and/or ECC keywords being warnings against them (except for the few Models that support 39-bit ECC SIMMs, 40-bit being exclusively used in RS/6000s) tin-plated contacts likewise. Many other or later IBM systems have used different RAM requirements, and with the multiple P/Ns (MKT, OPT, FRU etc.) for each, the potential number of different keywords becomes difficult to search for or eliminate.

How about this one:
https://www.ebay.co.uk/itm/184112084193

These memory specs are quite confusing.
I can't believe how hard it is to find something that would fit and how specific the requirement is for each machine.

Thanks a lot.

Re: Memory modules compatible with models 50 and 55SX

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Subject: Re: Memory modules compatible with models 50 and 55SX
From: wbstcla...@gmail.com (WBSTClarke)
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by: WBSTClarke - Thu, 27 May 2021 09:05 UTC

On Wednesday, 26 May 2021 at 16:09:10 UTC+1, WoW-Mania Support wrote:
> How about this one:
> https://www.ebay.co.uk/itm/184112084193
>
> These memory specs are quite confusing.
> I can't believe how hard it is to find something that would fit and how specific the requirement is for each machine.

Well, it's a TALL SIMM and the PD coding is incorrect (bridge PD3 to correct).

Better something like this:
https://www.ebay.co.uk/itm/333914156678
The chips are 70ns, but the PD coding is correct for a PS/2 4MB 80ns SIMM.

Re: Memory modules compatible with models 50 and 55SX

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Subject: Re: Memory modules compatible with models 50 and 55SX
From: wbstcla...@gmail.com (WBSTClarke)
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by: WBSTClarke - Thu, 27 May 2021 09:12 UTC

Well, it's a TALL SIMM and the PD coding is incorrect (bridge PD3 to correct).

Better something like this:
https://www.ebay.co.uk/itm/333914156678
The chips are 70ns, but the PD coding is correct for a PS/2 4MB 80ns Parity SIMM with gold-plated contacts.

Trespassers will be shot. Survivors will be prosecuted.

computers / comp.sys.ibm.ps2.hardware / Memory modules compatible with models 50 and 55SX

Subject	Author
Memory modules compatible with models 50 and 55SX	WoW-Mania Support
Re: Memory modules compatible with models 50 and 55SX	WBSTClarke
Re: Memory modules compatible with models 50 and 55SX	WBSTClarke
Re: Memory modules compatible with models 50 and 55SX	WoW-Mania Support
Re: Memory modules compatible with models 50 and 55SX	WoW-Mania Support
Re: Memory modules compatible with models 50 and 55SX	WBSTClarke
Re: Memory modules compatible with models 50 and 55SX	WBSTClarke
Re: Memory modules compatible with models 50 and 55SX	WBSTClarke
Re: Memory modules compatible with models 50 and 55SX	JWR
Re: Memory modules compatible with models 50 and 55SX	WBSTClarke
Re: Memory modules compatible with models 50 and 55SX	JWR
Re: Memory modules compatible with models 50 and 55SX	WBSTClarke
Re: Memory modules compatible with models 50 and 55SX	WoW-Mania Support
Re: Memory modules compatible with models 50 and 55SX	WBSTClarke
Re: Memory modules compatible with models 50 and 55SX	WBSTClarke