Sun Microsystems CPU and Memory Module
Compatibility Tables

Compiled by Craig Dewick

On this page you will find the following compatibility tables:

I'm in the process of updating these tables since there are a lot of table compatibility matches which are not currently shown, and a few unsupported by Sun matches which everyone except Sun seems to acknowledge, but should be noted. If you can provide more field-proven information to update these tables please email me with the details.

Craig's Sun Field Engineer Handbook Archive Please note that the best place for accurate data on Sun's official position regarding compatibility of RAM and CPU modules for various platforms is the Field Engineer and System Handbooks, which I now have online! The online handbooks are direct copies of the files off the CD-ROM editions of the FEH/SH.

If you have any information about CPU or RAM module compatibility which conflicts with what is shown in the Field Engineer and System Handbooks then please let me know...

More information is also required for Ultrasparc RAM module compatibility to update the RAM module table. I am also working on an Ultrasparc CPU module compatibility table, so if you have any info for this, please get in touch.

Special Note: I would like to acknowledge the wonderful support of Leslie Connally in updating and adding to the information contained in the following tables.

TI SUPERSPARC Mbus CPU Module Table

TYPE DESCRIPTION PART # SS20 SS10
& SS10-SX		 4/6x0 SC2000 SS1000
SM-30 [1] 36MHz 501-2239 no yes no no no
SM-40 [1] 40MHz 501-2219

501-2358

 no yes

yes

 no no no
SM-41 40MHz,1MB CACHE 501-2258
501-2270		 no yes

yes

yes

 yes

yes

yes

 yes

yes

 yes

yes
SM-50 [1] 50MHz 501-2528

501-2708

 yes

yes

 yes

yes

 no no no
SM-51 50MHz,1MB CACHE 501-2352

501-2360

501-2562

501-2607

 yes

yes

 yes

yes

yes

yes

 yes

yes

yes

yes

 no yes

yes

yes
SM-51-2 50MHz,2MB CACHE 501-2353

501-2601

 yes yes no yes

yes

 no
SM-52X 2x50MHz,CACHE 501-2431 no yes no no no
SM-61 60MHz,1MB CACHE 501-2519

501-2613

501-2825

 yes

yes

yes

 yes

yes

yes

 yes no yes

yes
SM-61-2 60MHz,2MB CACHE 501-2543

501-2757

 yes yes no yes

yes

 no
SM-71 [2] 75MHz,1MB CACHE 501-2520

501-2925

501-3001

 yes

yes

yes

 yes

yes

yes

 no yes yes

yes

yes
SM-81 [2] 85MHz,1MB CACHE 501-2953

501-3033

 yes [3] yes [3] no yes yes

yes

Please read the following Notes in conjunction with the above table:

  1. - The SM-30, SM-40 and SM-50 CPU modules have no integral SuperCache, and they are not recommended for use in any multiprocessor systems.

  2. - The SM-71 and SM-81 CPU modules require a v2.22 or higher bootROM. I have the v2.25 bootROM images for both SS-10 and SS-20 machines in my Sun bootROM archive.

  3. - SM-81 CPU modules are not officially recommended for use in Sparcstation-10 or -20 machines due to overheating problems resulting from a lack of air circulation inside the two styles of case. They are, however, quite ok in the sun-4d machines, and clone systems like the Axil S/420.

For full information about Sparc processors, check out the Sparc International web site. Also check Mike Spooner's Rough Guide to Mbus Modules for a lot more technical and historical informaion.

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ROSS hyperSPARC Mbus CPU Module Table

TYPE DESCRIPTION PART # SS20 SS10
& SS10-SX		 4/6x0 SC2000 SS1000
HS-11 100MHz SINGLE 370-1866 yes yes no [1] no [2] no [2]
HS-14 100MHz DUAL 370-1867 yes yes no [1] no [2] no [2]
HS-21 125MHz SINGLE 370-1865 yes yes no [1] no [2] no [2]
SM-151 150MHz SINGLE 370-1867 yes yes no [1] no [2] no [2]

Please read the following Notes in conjunction with the above table:

  1. - Hypersparc CPU modules can be used in 4/6x0 systems with the Ross v2.14.3H bootROM set fitted to the motherboard. I am not aware of any Sun bootROM versions that support Hypersparc modules in the 4/6x0 systems.

  2. - Sun's last bootROM version for the sun4d SS1000/SC2000 systems was v2.31, but I have no idea if it included support for HyperSparc modules.

Check out the Ross Hypersparc Mbus CPU module installation manual (in PDF format) for more information about using HyperSparc modules in Sun machines. Since 1998, Bridgepoint Technical Manufacturing has assumed the HyperSparc CPU production and support role from the now-defunct Ross Technology.

There are a lot of differently-configured Hypersparc CPU modules (between 1 and 4 processors, different cache sizes, and clock speeds up to 200 MHz per processor) which work flawlessly in Sun machines but are not officially endorsed by Sun. If you have any information about using these un-endorsed modules in Sun-4m machines, please email me with the details so I can add them into the above table.

Also check Mike Spooner's Rough Guide to Mbus Modules for a lot more technical and historical informaion.

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ULTRASPARC CPU Module Table

Coming soon! If you have any information about Ultrasparc CPU module compatibility, please let me know so I can investigate further.

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SIMM Compatibility Table

PART # SIZE PINS SS4
& SS5		 ULTRA
1 & 2		 ULTRA
Ex000		 ULTRA
E10000		 SS20 SS10 &
10SX		 SS2 3/80, SS1
SS1+ & IPC		 IPX
& ELC		 SLC LC
& LX		 4/3x0 4/6x0 SS1000 SC2000
501-1408 1MB 30 no no no no no no no yes no no no yes no no no
501-1625 4MB 30 no no no no no no no yes no no no no no no no
501-1698 4MB 72 no no no no no no no no no yes no no no no no
501-1739 4MB 30 no no no no no no yes yes no no no yes yes no no
501-1785 16MB 200 no no no no no yes no no no no no no no no no
501-1812 4MB 72 no no no no no no no no yes no no no no no no
501-1817 8MB ? no no no no no no no no no no no no no yes yes
501-1822 16MB 72 no no no no no no no no yes no no no no no no
501-1930 64MB 200 no no no no no yes no no no no no no no no no
501-1991 4MB 72 no no no no no no no no no no yes no no no no
501-2059 16MB 72 no no no no no no no no no no yes no no no no
501-2060 16MB 30 no no no no no no no no no no no no yes no no
501-2196 32MB ? no no no no no no no no no no no no no yes yes
501-2273 16MB 200 no no no no no yes no no no no no no no no no
501-2470 8MB 168 yes no no no no no no no no no no no no no no
501-2471 32MB 168 yes no no no no no no no no no no no no no no
501-2479 16MB 200 no yes no no yes yes no no no no no no no no no
501-2480 64MB 200 no yes no no yes yes no no no no no no no no no
501-2622 32MB 200 no yes no no yes no no no no no no no no no no
501-3136 128MB 200 no yes no no no no no no no no no no no no no
501-2652 8MB 168 no no yes no no no no no no no no no no no no
501-2563 32MB 168 no no yes yes no no no no no no no no no no no
501-2654 128MB 168 no no yes yes no no no no no no no no no no no

This list is by no means complete and I would like information about compatibility of newer RAM modules with newer machines. I may actually split the Ultrasparc machines off from the remainder into a seperate table if I can gather enough RAM module compatibility info to warrant it.

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A total of direct strikes have hit this page.

If there is anything you'd like to ask me, or you have some information which can update or expand the tables on this page, please send me some email. If this link doesn't work for you, my email address here is cdewick@lios.apana.org.au.


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