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DELL Latitude C640 Simpletech 400 Mhz 2GB RAM works

post #1 of 4
2/12/07 at 3:49pm
Thread Starter 
I just installed 2 x 1024 DDR memory cards on the Latitude C640 Pentium 4M 2.0Ghz. The BIOS is the A10 version on the Latitude.

They are Simpletech 400MHZ DDR 1 gb each. I took the laptop to a shop that caters to enterprise OEM solutions and they had the memory in the shop to test it before I left the store.

I searched all over the web including the notebook forums and couldn't find any definite reports that it would work.

Well, it does work - however your mileage may very if you try different memory brands. We didn't try any other memory.

Total cost was $238 (Feb 2007) I'm getting rid of my 2x256 since it works that well.
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post #2 of 4
2/12/07 at 5:19pm
Nobody denied that such ram will not work, but obviously different brands have better/worse quality.

Any ddr1 400mhz laptop ram stick will work on ur p4m
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post #3 of 4
8/24/12 at 11:56am

ya any 400MHZ DDR will work up to two gigs but ya it does say every where that model only supports i gig of 400mhz ram and you can use pc2100 @266 or pc2700 @ 333mhz either will work . just to complete the thread ;)

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post #4 of 4
12/23/12 at 9:08pm
I believe it will take it. I will need to locate my old C640 in my stack of retired machines and report back. I believe I maxed it out many moons ago....
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