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ML370 Memory upgrade

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NCJJC
Occasional Advisor

ML370 Memory upgrade

I wanted to attempt to add more Ram to a very old Compaq ML370 tower server I have. It's got two DIMMs available. However, I need to find out the following:
1. Is there documentation available on how to get the tower style case open?
2. How do I know how much RAM this old motherboard can support?

It currently has 128mb in Dimm1 and 512 in Dimm2. It has a 133 bus and a 1000 megahurts pentium 3 so it needs all the help it can get.

Thanks.
10 REPLIES
TY 007
Honored Contributor

Re: ML370 Memory upgrade

Hello,

>> Is there documentation available on how to get the tower style case open?
- Need some strong fingers :)
- Open the front bezel
- Loosen the two thumbscrews securing the large access panel
- Slide the large access panel back, then pull it away from the chassis

>> How do I know how much RAM this old motherboard can support?
- Maximum memory capacity is 4 x 1 GB
- 133-MHz Registered ECC SDRAM DIMM

Thanks
Aks2
Valued Contributor

Re: ML370 Memory upgrade

these links should help:

http://h20000.www2.hp.com/bizsupport/TechSupport/DocumentIndex.jsp?〈=en&cc=us&contentType=SupportManual&docIndexId=179166&prodTypeId=15351&prodSeriesId=254940〈=en&cc=us+


http://h20000.www2.hp.com/bizsupport/TechSupport/Home.jsp?〈=en&cc=us&prodTypeId=15351&prodSeriesId=254940〈=en&cc=us


cheers
Akarsh
NCJJC
Occasional Advisor

Re: ML370 Memory upgrade

Thanks for the quick help guys. I was going to try and throw in some old SDRAM from a machine with 100mhz bus clock, but would that even work? I'd rather not waste my time if there is absolutely no chance of it happening.
NCJJC
Occasional Advisor

Re: ML370 Memory upgrade

Also...

I tried tugging on that front cover a little before posting on here to make sure that was the first step. You weren't kidding about the strong fingers. I'm 100% sure I'm going to break that thing upon removal. Oh well it will give it some character...
Brian_Murdoch
Honored Contributor
Solution

Re: ML370 Memory upgrade

Hi,

Forget about putting PC100 memory into this system - it won't work. Memory must be 3.3V 133Mhz Registered SDRAM with ECC.

I have put together a small chart with memory layout, type required, option and spare part numbers etc. Please see attached file.

The Option part number is a Compaq sales part number. The Spare part number is used for service calls by engineers. You can obtain parts using either option or spare part numbers on Ebay for example.

Here using Spare Part numbers for 512Mb and 1Gb dimms....
http://cgi.ebay.com/HP-512MB-PC133-SDRAM-MEMORY-P-N-159227-001_W0QQitemZ250092566976QQihZ015QQcategoryZ11210QQrdZ1QQssPageNameZWD1VQQcmdZViewItem

http://cgi.ebay.com/Genuine-Compaq-HP-1GB-133-RAM-128280-B21-163902-001_W0QQitemZ200144603888QQihZ010QQcategoryZ11210QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

You don't have to fit dimms in pairs on this system so you could obtain a single 1Gb dimm, 2 X 1Gb dimms or 2 X 512Mb dimms depending on your spending limits.

The side panel should come off with a little help. The removal procedure is included at the bottom of the attached file.


I hope this helps.

Brian
NCJJC
Occasional Advisor

Re: ML370 Memory upgrade

Brian,

Thanks for the additional help. That word document is perfect.

I have two more quick questions. Does it have to be an HP brand? I found one on ebay with the same voltage/bus but it's kingston and much cheaper in price:

http://cgi.ebay.com/Kingston-512mb-133mhz-Sync-ECC-SDRAM-DIMM-1-48-S-H_W0QQitemZ150152705331QQihZ005QQcategoryZ14918QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

I also found a HP 1gb module but its 3.5V. Would that work by any chance?

TY 007
Honored Contributor

Re: ML370 Memory upgrade

Hello,

>> Does it have to be an HP brand?
It depends whether the Machine still has HP Support Warranty :)

>> I also found a HP 1gb module but its 3.5V. Would that work by any chance?
Be careful, the Server Motherboard might just get burnt off :)

Thanks

Brian_Murdoch
Honored Contributor

Re: ML370 Memory upgrade

Hi,

The Kingston memory should be OK. I think the 3.5V reference for the 1Gb dimm is possibly an error but just in case, avoid it.

Brian
NCJJC
Occasional Advisor

Re: ML370 Memory upgrade

I just won an auction for the following

COMPAQ PROLIANT 1GB (2 X 512) 133MHz SYNC ECC SDRAM

Two New in original packaging DIMMS of memory:

**GENUINE** COMPAQ (HP) P/N: 128279-B21 512MB, SYNC, SDRAM DIMM, 133MHz, CL3 , ECC Module

Manufacturer: Compaq
Part Number: 128279-B21
Description: 512MB SDRAM ECC 168-pin DIMM for Compaq ProLiant DL360 and other servers
Comments: This is a genuine, original part
Note: Buyer responsible for determining suitability before bidding

I got it for way less then all retail sites I've found and will be sure to update the thread when they're in.

Thanks again everyone.
tkc
Esteemed Contributor

Re: ML370 Memory upgrade

Following are the part numbers I found for Proliant ML370 with 1GHz PIII CPU :

159304-001 256MB, 133MHz ECC SDRAM buffered DIMM
159377-001 256MB, 133MHz ECC SDRAM buffered DIMM
163902-001 1.0GB, 133MHz, ECC SDRAM buffered DIMM memory module
164278-001 128MB, 133MHz ECC SDRAM buffered DIMM
177628-001 512MB, 133MHz, buffered ECC SDRAM DIMM memory module