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My ram's speed is recognized as 400 when it should be 800

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I just got done building my new machine. This was my 2nd time building it (1st one was a long long time ago) so I was kind of surprised that I built it without any trouble.

Anyways, I installed my new rams on Dual Channel Mode..

my rams: http://www.newegg.com/Product/Product.aspx?Item=N82E168...
my mobo: http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Under specification..
ram is: Speed DDR2 800 (PC2 6400)
mobo is: Memory Standard DDR2 1200(OC)/1066/800

So these two should be compatible and should be recognized as 800 right?

BUT, according to HWiNFO, it only shows 400.
Here is the screenshot.
http://img440.imageshack.us/my.php?image=81506647eu5.jp... (please tell me if you cannot see it)


Is this a compatibility issue? Maybe damaged parts or something?

Any help would be greatly appreciated..thanks guys

More about : ram speed recognized 400 800

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Memory Expert

In CPUz, under memory, does it show both 800 as well as 400? Try changing it in BIOS. I have PC2-8500 RAM, and by default it was set to PC2-6400. Quick change in BIOS and voila!
Memory Authority

"DDR" means "Double Data Rate". Therefore the correct reading for your DDR2 800 RAM *is* 400.

Also - You might consider leaving now, 'cos I predict others won't answer your question nearly as nicely.
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basically, DDR (double data rate) means the ram transfers data twice per clock cycle. so if the clock frequency is 400MHz then the transfer frequency is 800MHz. most programs will report the clock frequency while companies always advertise the transfer frequency.

Scotteq said:
"DDR" means "Double Data Rate". Therefore the correct reading for your DDR2 800 RAM *is* 400.

Also - You might consider leaving now, 'cos I predict others won't answer your question nearly as nicely.


hey, we will too...don't be a jerk like that.
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