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Empty Slot 3 Ram Not Recognized in Bios or WIN98SE

by janal95 / September 10, 2008 10:35 AM PDT

This computer works fine running WIN98SE.
Memory slots 1 and 2 each have 64MB.
Memory slot 3 was empty.
Dial-up modem works fine.
Ethernet connection to XP Home for file transfer works fine.
Video works fine.
Sound works fine.
CD-ROM and CD-RW work fine.
I had a 64MB memory card from an old Compaq Presario I put in slot 3.
It was not recognized in the BIOS or WIN98SE, only slots 1 and 2.
I moved the compatible memory to slot 1 and moved slot 1 to slot 3.
Only the DIMM in 1 and 2 were recognized.
MSCONFIG in ADVANCED was always unchecked.(orig shaded 120 MB)
The motherboard is PCCHIPS 742M.(American Mega Trends Bios)
I think this is really a Compaq Presario in a larger unmarked chasis.
The motherboard pictures look like a variation of EXCEL 2000.
I'm stumped searching over the internet for clues.
I don't think there's if there is anything in the BIOS that s/b changed, but I don't know.T This confiq with a hint of slot 1 combo info is something I don't understand or not relevant.
Ideas? Thanks.

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Stumper.
by R. Proffitt Forum moderator / September 10, 2008 11:12 AM PDT
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My TYPO...IT's A M741T...INTER CELERON 366 Mhz
by janal95 / September 10, 2008 7:08 PM PDT
In reply to: Stumper.

The original numbers on the 1 and 2 memory and the pulled 3 memory looked like they were compatible 168-pin boards.

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Link please.
by R. Proffitt Forum moderator / September 10, 2008 10:48 PM PDT

Since you typo a lot let's just have you do the work for us. Post links to your board so I can check. But remember that old boards did have limits on chip selects so they ran out and in some old boards the 3rd slot had issues.
Bob

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American Megatrends bios util M741
by janal95 / September 10, 2008 7:30 PM PDT
In reply to: Stumper.

The utility says M741.
The running setup says M741-H.
I found the lookalike image in Google images.

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Success
by janal95 / September 13, 2008 10:06 PM PDT
In reply to: Stumper.

The server was down on the PCHIPS site the first time.
My bios said 741-H.
I had an image of M741LMRT with no idea what the "LMRT" meant.
Later, on the second try to PCCHIPS, I found the old stuff.
It contained the manual and all information concerning this product.
Now, I'll be able to locate the correct 168-pin memory module for the additional empty slot.

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ECC and non-ECC ram issue
by Willy / September 10, 2008 11:48 PM PDT

Unless already answered, your ram probably the wrong type. In older systems, there were ECC and non-ECC. These in most cases couldn't be mixed and thus not seen if used in an orderly slot fashion. I'm sure if you look-up the Compaq ram product# you used, it was ECC type. Far too many system used non-ECC and if possible you could set the bios to disable the ECC feature(rarely) so such ram could be used. If you check the specs of the system you got the 3rd ram from, it should confirm that. Something a Compaq system would provide info on some decal/sticker stuck on the inside case cover. Of cosuee, Compaq provides websupport, locate it under that.

tada -----Willy Happy

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RAM part numbers
by janal95 / September 11, 2008 12:47 AM PDT

Thanks for the response.
This M741 will be regifted to the computer club for distribution.
I'm not the original owner.
My limited knowledge and RAM research as follows:
Slots 1 and 2 PC100-222-620 64MB.
Slot 3 empty.
Filled slot 3 with a pull from a Presario 6746C that had no power.
The above above was PC100-222-620 64MB.
Additional info on memory 64MB SYNCH, 100Hz, CL2.
And M8BLSDT864AG-10EV7.
Painful but interesting education.
I'll read about ECC and non-ECC issue.

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Extra Memory Recognized
by janal95 / September 22, 2008 10:39 PM PDT

I cleaned memory slot 3.
I cleaned the memory module.
It was the 8X64 type.
Meanwhile loaded my extra XP for 30 day period to look at Firefox.
The forum is truly helpful.
Hardware rules.

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