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Old 02-15-2006, 03:52 AM   #1
cgtueno
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Question sd-p5VA motherboard - Anyone know which intel processors it supports ?


15th February 2006

Hi All

I'm looking for some information on a particular motherboard
to prevent system lockups due to incorrect processor installation.

It's marked sd-p5va version 1.1
It's a Socket 7 motherboard
It's bios number indicates that it was manufactured by
Pro Team Computer Corp
It may have been marketed as either a supergalaxy sd-p5va
or azza sd-p5va.

The azza web site doesn't exist anymore.
I cannot find a copy of the manual on the www.

The board had an IBM 6x86L PR166+ processor on it that runs
extremely hot.

I need to know if the motherboard meets the dual supply voltage
specification for the socket 7 CPU. ie. can support intel
mmx architecture cpus (the IBM 6x86L is a dual voltage cpu
and it might be operating at an abnormal core voltage of 3.0V
instead of 2.8V !) I don't want to install a P166mmx or P200mmx
processor if the board will cause it to prematurely fail
or lockup when running Linux.

I need to use this board because I need to support three
ISA 16-bit legacy adapters, and I have a ceiling of 8 MB RAM
imposed by one of these cards (it's memory mapped).
(Board architecture is 4xPCI + 3xISA + 4xSIMM or 1xDIMM)

If anyone has some information about the CPU compatibility
and the general header configuration of this board I would
be most grateful.

Best regards

Chris

Last edited by cgtueno; 02-15-2006 at 03:54 AM.
 
Old 02-15-2006, 08:52 AM   #2
RedShirt
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http://www.google.com/search?hl=en&q...=Google+Search

Google is your friend.

Apparently that board was made by Azza, the website is dead, but I gathered the following info in about 3 minutes:

Supports Intel 75Mhz-200Mhz processors. It will not support 233mhz or higher, as those are split voltage and will damage your board.

It uses PC66 SDram to a max of 64Mb.

Can support 4PCI and 3 ISA cards.

There is also a guy here, willing to mail you the exact manual for the cost of shipping(from Australia) http://phorums.com.au/showthread.php?t=1834

Last edited by RedShirt; 02-15-2006 at 08:53 AM.
 
Old 02-15-2006, 09:26 AM   #3
cgtueno
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Cool

Thanks redshirt

I found that www page immediatly as well.

If you read the postings carefully Rod Grant
doesn't actually state whether the board supports
dual voltage CPUs such as the Intel MMX series
or IBM 6x86L.

Infact he states that he got the board running
with a 3.0V core cyrix chip.

The memory isn't a problem I have it working
with 2x 4MB SIMMs.

So my questions remain unanswered.

Yes I have emailed Rob Grant.
The last posting on that problem was in May 2003
so I'm not holding my breath.

Oh the board is unlikely to be damaged, the CPU
would be damaged by a core over voltage.

The board has two regulators close together
which seems to indicate that it might (might)
be a dual voltage socket 7 type board.

If you come across any useful information I
would be obliged.

Thanks for the enthusiasm

Best regards

Chris
 
Old 02-15-2006, 09:42 AM   #4
cgtueno
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Rob Grant's account no longer exists so no help there.
 
Old 02-15-2006, 10:07 AM   #5
RedShirt
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According to other sites/posts, actually I believe it was a mailing list...I saw explicitly listed, the board is not dual voltage and will not handle said chips.

However, to be sure, get a mobo chip identifier tool to verify which chip is running that board. My guess is it is the M571 series, which isn't Super-7, hence no socket 7 support. But if you find you have an odd revision of that board, with an updated chip, than it would work. But frankly, going by chipset and what it can handle, is going to be the only way to know for sure this many years later, I think.

Last edited by RedShirt; 02-15-2006 at 10:08 AM.
 
Old 02-23-2006, 09:02 AM   #6
cgtueno
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23/02/2006

OK

On close inspection, the motherboard has two external voltage regulators close the the CPU. Beside these two rectifiers is a header. some of the onbloard markings (between two of the ISA slots) indicate what appears to be a voltage chart.
The motherboard was configured with an IBM 6x86L PR200+ (133MHz) processor.
The requirements of this dual voltage processor match the header configuration.
Hence it appears that the mother board does support dual voltage CPUs.
I've only pushed it as far as a P200MMX running at 133 MHz and it works ok.

The heating fault appears to have been the result of poor heat transfer to the
heatsink and some silicon grease soon fixed that. It does run hot but that appears
to be consistant with other people's experiences.

I've deciphered most of the other headers. I'll post the results inthe near future.

The only way to be sure is to use a multimeter to check the voltages at pin level in the processor socket. I'm happy with things as they are though because it works and is stable.

Thanks for the help.

Best regards

Chris
 
  


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