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Old 08-24-2009, 11:14 PM   #1 (permalink)
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Question Can i put DDR2 800Mhz in my system if my computer needs 533mhz or 667mhz?

is it still backwards compatible?

Here's my question. My laptop is currently running 1GB @ 533mhz.

It says that my laptop can run up to 4GB @ 667mhz, so if that's the case, i need 4GB @ 667mhz sticks of ram.

but... Can i put a 4GB @ 800mhz into my laptop? Is it still backwards compatible so it would run at the speed of 667mhz?

The reason for this is, 4GB @ 800mhz ram is $40. But 4GB @ 667mhz ram is $60

I know it's stupid, faster ram is more cheaper.

So i save $20 if i buy the 800mhz one. What do you think?
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Old 08-25-2009, 12:05 AM   #2 (permalink)
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It should downclock for you but I wouldn't take the chance as some laptops could be fussy with the memory they require. What model laptop is it?
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Old 08-25-2009, 12:05 AM   #3 (permalink)
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Yeah it should underclock the ram.
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Old 08-25-2009, 01:14 AM   #4 (permalink)
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it's a toshiba A100 OFH
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768mb SDram (PC-133) | 1GB DDR (PC2100) | 1GB DDR2 (PC2-4300)
40GB 7200RPM HD | 80GB 7200RPM HD | 100GB 5400RPM HD
ATI Radeon 9600 PRO 128mb | nVidia XFX 7200 GS 512mb | Intel GMA 950 128MB (Shared)
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