Socket A mod: SP to MP. Any experience?

[bigbeark]

The price of MP Socket A CPUs is $50 a pair on Ebay. The regular non-MP processors such as AXDA2200DUT3C, for example, can be converted to MP by closing the last L5 bridge trace. The traces are 0-1-2-3, so you paint over trace 3 and you get an MP (multiple processor) CPU for your dual-cpu board.

Has anyone here done this, what were the results, and what did you use to paint the trace?

I have many AXDA2200DUT3C chips, several dual-CPU Tyan boards, but no spare AMSN MP CPUs. Comments?

[stj]

Re: Socket A mod: SP to MP. Any experience?

they wised up to that pretty quick, most newer cpu's have the connection fused internally.

[ratdude747]

Re: Socket A mod: SP to MP. Any experience?

I have an old set of MP chips that I was given for free a couple years ago. PM me if you want them; the board they were going to go in was a dud (one socket non functional; failed recap?) but both CPUs are known working. IIRC they're pretty fast ones too (search through my threads, I'm sure I noted this somewhere).

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Depends on the age of chip. At first, one could pencil the contacts on top. Then they added internal resistors to make that not work, so the new fix was using conductive paint and scotch tape (to mask). Finally, AMD added pits between contacts to make any paint fall in and hit the ground plane of the CPU; the fix was to mask the contacts, fill the pits with super glue, and then paint the contacts. I don't remember the contacts needed to make an XP an MP, but it's online (and maybe in one of my threads too?).

It was after the pits that AMD went to Athlon64/Opteron and they internally fused things (and used a different socket, 940 vs 939).

[ratdude747]

Re: Socket A mod: SP to MP. Any experience?

Here's a couple of threads on my Athlon MP experience:

https://www.badcaps.net/forum/showthread.php?t=17327

https://www.badcaps.net/forum/showthread.php?t=17508

From the latter the ones I have are 2600+ with a 266FSB. I'll even throw in the pair of vantec screamers (coolers) if you'd like. Pay it forward, if you like.

[bigbeark]

Re: Socket A mod: SP to MP. Any experience?

Here's a couple of threads on my Athlon MP experience:

https://www.badcaps.net/forum/showthread.php?t=17327

https://www.badcaps.net/forum/showthread.php?t=17508

From the latter the ones I have are 2600+ with a 266FSB. I'll even throw in the pair of vantec screamers (coolers) if you'd like. Pay it forward, if you like.

Thanks so much! I sent you a PM. Let me know if it didn't get through!

[ratdude747]

Re: Socket A mod: SP to MP. Any experience?

Thanks so much! I sent you a PM. Let me know if it didn't get through!

It was sent as a visitor message... I copied it and PM'd you back, hopefully a mod will nuke it before a bot adds you to a junk mail list .

Glad they're going to a good home; While I was going to leave them on the board for when I go to hang my dead/unused workstation boards on plaques as wall decor, FWIW I can get some junk durons and toss those in, as they'll only be used as cooler spacers anyway.

yes, i have weird taste... but what else am I to do with dead rare cool looking boards (one of them is AFAIK one of 300 ever made )