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Memory is not recognized by the PC

paredes_mynor
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Last Modified: 2010-05-18
Hello there.

My issue is as follows:   I have a PC with a MicroStar MS-6547 motherboard, and a Pentium 4 1.7 GHz processor.  The thing is that I bought a 256MB (DDR 184 pins)memory card, and put it in the 2nd slot, and the PC just starts, makes the memory revision, doesn't recognize the added memory and continues to get Windows running.  I already put the new memory card in the 1st slot and the old memory card in the second slot and got the same results, so that means that the new memory card is compatible or the correct type one.  I already tried just letting the first slot occupied by any of the cards, and runs fine.

Is there anything I cand do to fix this thing.  I already tried to clean up the slot with contact cleaner, but nothing seems to help.

It's suppossed that the motherboard can have up to 3GB RAM, so it's not a memory overload issue.
I will appreciate a lot your help.

Mynor.
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lol, I think that we are all over this one.  tag team, your turn.  :)
and where did you find the 6547, I got a bunch of 654 (sounds like and engine)
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Top Expert 2012

Commented:
buckeyes33, check out the crucial link - there's a few 6547's there.

Author

Commented:
The memory info is:  Mushkin PC2100 DDR266(2.5) 256M*8.

The information about the motherboard is in http://www.dealtime.co.uk/xPF-Microstar_Socket_478_MS_6547.
The weird thing is that the old memory works in the first slot, but not in the second.  The same with the new one.

Thanks you both.  I hope the above info would help.
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Commented:
I was trying to get the manual for it, but there is more than one 6547 listed, as you can see: http://www.msicomputer.com.au/program/support/manual/mnu/spt_mnu_list.php

Can you narrow down the exact motherboard model?
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Commented:
Look up MSI 645 Ultra (MS-6547)...T

Commented:
Memory slot 1(Bank,0,1), memory slot 2(Bank 2,3), memory slot 3(4,5) so any combination of single or dual bank memory will work. T

Author

Commented:
Ok guys, I will try to reset the CMOS and I'll keep you informed asap.  Don't have the PC close right now, but in 2 hours, I'll try to do it.

Thanks again.
Mynor.
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Commented:
it probalbaly ain't the cmos it is the board i think the second slot is probabaly is bad or disabled there might be a little black or blue usally black on the board and it might be the enabler or disabler jumper
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