From: Iain Barker (ibarker@aastra.com)
Date: Thu Sep 11 2003 - 23:26:19 EDT
I'm still unsure if 200pin is a standard memory size, or proprietary to HP,
but here is what I found out for sure.
HP use Infineon memory on DS10, the part code for 256MB is HYS72V32120WR-8-B
There is an Infineon part code to capabilities decode matrix on their
website. The DS10 part decodes as:
HYS = SDRAM-based Memory Modules
72 = ECC
V = 3.3v
32 = 32 Mbit
1 = Data Sheet defined
2 = Two Memory Module Banks
0 = Product Variation (?)
W = Package Type (?)
R = Registered DIMM
8 = Speed 8ns @ 2-2-2 cycle
B = Die Revision (?)
The DS15 version should be similar but 133MHz. My best guess is that it
would be 7ns or 7.5ns using the speed table below for comparison:
6 =166 MHz (PC166 3-3-3)
7 =133 MHz (PC133 2-2-2)
7.5 =133 MHz (PC133 3-3-3)
8 =100 MHz (PC100 2-2-2)
Thanks also to Benjamin Ingwersen for offering to locate a cheaper source of
OEM/generic memory if we go ahead with the DS15 purchases.
> -----Original Message-----
> From: Iain Barker
> Sent: Thursday, 11 September, 2003 09:51
> To: Tru64-Unix-Managers (E-mail)
> Subject: DS10 and the new DS15 - memory requirements
>
> Managers,
>
> A quick question regarding DS10 memory requirements, and the new
> replacement DS15 servers just announced.
>
> They are listed as "100MHz 200pin ECC DIMM" but the only 200 pin devices I
> have seen are SO-DIMM used on laptops.
>
> For DS10 Kingston etc. have equivalents for the HP MS310 memory kits, but
> are the actual DIMMs themselves generic parts or is the 200 pin
> form-factor proprietary to HP?
>
> I ask because on the new DS15 server announced last month, the memory is
> specified as:
>
> " Industry-standard DIMMs with ECC support
> 512-MB memory kit, two 200-pin, 133-MHz, 256-MB DIMMs 3X-MS315-EA
> 1-GB memory kit, two 200-pin, 133-MHz, 512-MB DIMMs 3X-MS315-FA
> 2-GB memory kit, two 200-pin, 133-MHz, 1-GB DIMMs 3X-MS315-GA
> "
> (from
> http://h18002.www1.hp.com/products/quickspecs/11748_div/11748_div.HTML)
>
> It sounds like a faster 133Mhz version of the DS10 memory. But the DS15
> servers are so new that no vendors have generic memory listed yet for
> MS315 equivalents.
>
> If the DS10 100MHz DIMMs are generic parts, then chances are the DS15
> 133MHz will be too. But if the DS10 is proprietary then at the moment
> there are no alternative vendors to HP for memory on the new servers.
>
> HP memory of course is rediculously expensive (>$3k per GB) for this
> entry-level AlphaServer.
>
> thanks.
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