The memory in a DS20E follows the same specs as the memory that fits in a
DS10.
The DS10 won't accept higher density modules. The DS20E has 16 memory slots
and supports memory boards up to 256 MB.
The DEC supplied memory boards offer very little information but my DS20E
also has a few Toshiba boards:
PC100-222-620R
32M x 72 SDRAM
100 MHz CL2 ECC
The (128 MB) Micron board partno is: MT9LSDT1672AG-10Eb1
This is 100 MHz, synchronous, unbuffered, error correcting memory.
It operates at 3.3 V.
The CL 2 latency spec is important.
Hans
You have a DS10 so you don't have to be quite as picky. The DS10L needs a shorter DIMM board. The old DEC/Compaq part number for memory was MS310-xA where A=64MB, B=128MB, C=256MB, D=512MB, E=1GB. This is total size. Each kit is 2 DIMM boards so the largest is a set of 2 512MB DIMMS.
The trick about the DS10/DS10/DS20/ES40 memory is that it's on 200-pin DIMMs. And if you Google or search in Ebay you'll get a ton of hits because it's a common notebook memory size for SO-DIMMs. These will not fit. Be wary. IIRC the basic spec is 200-pin, PC100, ECC but I can't remember if they're buffered or un-buffered (registered or not).
Okay, I pulled a DIMM out of my DS10L and it's DEC part # 20-01ESA-08 and specifically a Samsung M378S6450ATQ-C1H
Googling this tells me it's a 200-pin, PC100, Synchronous, CL2, ECC DIMM.
I found one hit on the US Ebay for memory fitting this specification, however, the picture they have with the listing is for a Micron DIMM board and the part number decodes to a 186-pin DIMM. So either the picture is wrong, or generic or the listing is incorrect. In either case, beware. Alpha Memory 256MB 200pin Synch DIMM100MHz CL2 ECC
Your best bet is going to be searching on MS310-EA or 20-01ESA-08 and on the US EBay it looks like the best deal is
1GB (2x512MB) PC100 ECC Registered ECC 200pin Memory for $59.95 US.
It's an oddball memory and tough to find in the generic market. Good luck.
Cheers,
John H. Reinhardt
On 9/21/11 2:21 PM, Sampsa Laine wrote:
Thanks for that - but what TYPE (MHz etc) are they, exactly? I was going to just buy generic RAM.
Sampsa
On 21 Sep 2011, at 16:39, hvlems at zonnet.nl wrote:
The DS10 uses the same kind of memory as the DS20(E) and the ES40. Memory must be installed in pairs and the maximum size for 1 memory board is 512 MB.
Have a look at eBay Sampsa. Check the systems and options guide for the DS10 memory part numbers on the HP site
Hans
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Van: Sampsa Laine
Afzender: owner-hecnet at Update.UU.SE
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Onderwerp: [HECnet] Noob questions #42: RAM for DS10
Verzonden: 21 september 2011 14:45
Guys, what kind of DIMMs should I be looking for on ebay to add ram to my DS10?
I'd like the largest possible ones so that I can fill it up to 2 GB.
Sampsa
Sampsa, I'll open up my DS20E (same memory) for 3rd party specs.
-----Original Message-----
From: Sampsa Laine <sampsa at mac.com>
Sender: owner-hecnet at Update.UU.SE
Date: Sat, 24 Sep 2011 15:08:58
To: <hecnet at Update.UU.SE>
Reply-To: hecnet at Update.UU.SESubject: Re: [HECnet] Anyone got a bootable firmware updater CD ISOs
forAlphaservers?
When I speed tested the IDE drive against a 5 DISK (9 GB, RAID 5) BA265, I saw no performance difference.
Test file was 100 MB of random data.
The system "Feels" faster weirdly enough, and is tiny compared to any other Alphas I've owned.
Now I'd just love to know the spec of DIMMs for the unit so I can max out the memory.....
On 24 Sep 2011, at 14:12, hvlems at zonnet.nl wrote:
Good news Sampsa. Is the IDE disk indeed noticably slower than a (wide) SCSI disk?
Hans
------Origineel bericht------
Van: Sampsa Laine
Afzender: owner-hecnet at Update.UU.SE
Aan: hecnet at Update.UU.SE
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Onderwerp: Re: [HECnet] Anyone got a bootable firmware updater CD ISOs forAlphaservers?
Verzonden: 24 september 2011 15:02
WOO HOO.
CHIMPY just booted off an internal IDE drive. No more crazy storage boxes in my rack.
Sampsa
On 24 Sep 2011, at 03:04, Oleg Safiullin wrote:
Sampsa Laine wrote:
The newer the better,.
http://pdp-11.nsk.ru/~form/files/ds10/v73.iso
When I speed tested the IDE drive against a 5 DISK (9 GB, RAID 5) BA265, I saw no performance difference.
Test file was 100 MB of random data.
The system "Feels" faster weirdly enough, and is tiny compared to any other Alphas I've owned.
Now I'd just love to know the spec of DIMMs for the unit so I can max out the memory.....
On 24 Sep 2011, at 14:12, hvlems at zonnet.nl wrote:
Good news Sampsa. Is the IDE disk indeed noticably slower than a (wide) SCSI disk?
Hans
------Origineel bericht------
Van: Sampsa Laine
Afzender: owner-hecnet at Update.UU.SE
Aan: hecnet at Update.UU.SE
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Onderwerp: Re: [HECnet] Anyone got a bootable firmware updater CD ISOs forAlphaservers?
Verzonden: 24 september 2011 15:02
WOO HOO.
CHIMPY just booted off an internal IDE drive. No more crazy storage boxes in my rack.
Sampsa
On 24 Sep 2011, at 03:04, Oleg Safiullin wrote:
Sampsa Laine wrote:
The newer the better,.
http://pdp-11.nsk.ru/~form/files/ds10/v73.iso
Good news Sampsa. Is the IDE disk indeed noticably slower than a (wide) SCSI disk?
Hans
------Origineel bericht------
Van: Sampsa Laine
Afzender: owner-hecnet at Update.UU.SE
Aan: hecnet at Update.UU.SE
Beantwoorden: hecnet at Update.UU.SE
Onderwerp: Re: [HECnet] Anyone got a bootable firmware updater CD ISOs forAlphaservers?
Verzonden: 24 september 2011 15:02
WOO HOO.
CHIMPY just booted off an internal IDE drive. No more crazy storage boxes in my rack.
Sampsa
On 24 Sep 2011, at 03:04, Oleg Safiullin wrote:
Sampsa Laine wrote:
The newer the better,.
http://pdp-11.nsk.ru/~form/files/ds10/v73.iso
WOO HOO.
CHIMPY just booted off an internal IDE drive. No more crazy storage boxes in my rack.
Sampsa
On 24 Sep 2011, at 03:04, Oleg Safiullin wrote:
Sampsa Laine wrote:
The newer the better,.
http://pdp-11.nsk.ru/~form/files/ds10/v73.iso
The newest is on the HP site, though I think Oleg's is the most recent.
------Origineel bericht------
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Onderwerp: [HECnet] Anyone got a bootable firmware updater CD ISOs for Alphaservers?
Verzonden: 24 september 2011 03:49
The newer the better,.