Can 1GB pc2-6400 800mhz ram replace pc3200 d

May 19, 2011 at 14:06:05
Specs: Windows XP, Intel pentium 4 CPU 2.66 Ghz
My Desktop pc has a MSI motherboard MS-7071(PM8M2-V) It has 2 memory slots and 2048MB max ram. I want to add max ram. Currently have 2-512mb PC3200 DDR400 cards installed.
A friend has offered 2-1GB ram cards mfgr. Patriot PC2-6400 800Mhz
Are these compatible? Will they do the job? ie give me max RAM performance?
Thanks for any help

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May 19, 2011 at 14:21:21
See the mainboard manual. Most likely, they are NOT interchangable.

Quote from web site -
• Supports four memory banks using two 184-pin DDR DIMM.
• Supports up to 2GB DDR333/400 SDRAM.
• Supports 2.5v DDR SDRAM.

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May 19, 2011 at 18:54:15
PCxxxx = DDRxxx = 184-pins at 2.5v

PC2-xxxx = DDR2-xxxx = 240-pins at 1.8v

Notice how they snuck the 2 in there? It was done for a reason. PC/DDR is not PC2/DDR2 & vice-versa. Is it that difficult to look these things up?

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May 21, 2011 at 15:12:36
Yes it is to a non-computer expert. I have been to the local computer/electronic stores and pretty much always there is no one who can answer this type of question. Their solution, buy a new computer. Thanks anyway

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