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You are here: MacNN Forums > Hardware - Troubleshooting and Discussion > Mac Notebooks > macbook ram. mix 533mhz ram with macbook original ram

macbook ram. mix 533mhz ram with macbook original ram
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adihez
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Oct 16, 2006, 12:18 AM
 
hi. i got a spare 512mb ram from my laptop pc. its using 1.83ghz core duo. same as the macbook. so can i mix the ram with the original ram from macbook. currently i have 256x2 ram for the macbook.i wanna make it 768. thanks in advance.

edit: my pc ram is 533mhz..will that be a problem?
antigravity..
     
C.A.T.S. CEO
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Oct 16, 2006, 01:04 AM
 
It may not fit. Processor speed has no relevance (in my experience).

Just my 2 cents....
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harrisjamieh
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Oct 16, 2006, 01:45 AM
 
I have 1 x 256 and 1 x 1GB sticks in my intel iMac giving a total of 1.25. When I bought the 1GB stick, I unknowingly bought 533 Mhz RAM instead of 667. It has been working fine for 8 months now. Just I guess I am getting a bit of a performance hit.
iMac Core Duo 1.83 Ghz | 1.25GB RAM | 160HD, MacBook Core Duo 1.83 Ghz | 13.3" | 60HD | 1.0GB RAM
     
dreamsINdigital
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Oct 16, 2006, 01:46 AM
 
It will work, but if the RAM from your PC laptop is 533 MHz, it will downclock the RAM in your MacBook (667 MHz) to 533 MHz. So both RAM sticks will be running at 533 MHz.

From what I've heard, the difference in performance between 667 MHz and 533 MHz is not much.
     
nabilanwar
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Oct 16, 2006, 01:47 AM
 
Originally Posted by adihez
hi. i got a spare 512mb ram from my laptop pc. its using 1.83ghz core duo. same as the macbook. so can i mix the ram with the original ram from macbook. currently i have 256x2 ram for the macbook.i wanna make it 768. thanks in advance.

edit: my pc ram is 533mhz..will that be a problem?

u need 667mhz. sorry.

pasted frm dealram.com
"512MB DDR 2 667MHZ PC2-5300 200 PIN DIMM FOR APPLE MACBOOK"
     
dreamsINdigital
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Oct 16, 2006, 01:49 AM
 
Originally Posted by nabilanwar
u need 667mhz. sorry.

pasted frm dealram.com
"512MB DDR 2 667MHZ PC2-5300 200 PIN DIMM FOR APPLE MACBOOK"
You do not NEED 667 MHz, but it's preferred. 533 MHz RAM will run fine in the MacBook. I've tried it myself on mine.
     
adihez  (op)
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Oct 16, 2006, 02:39 AM
 
ahh thanks dreamsINdigital..

@nabilanwar - im not buying a new one..im trying to use one i already have.
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nabilanwar
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Oct 16, 2006, 02:11 PM
 
Originally Posted by adihez
ahh thanks dreamsINdigital..

@nabilanwar - im not buying a new one..im trying to use one i already have.
didnt say anythng bout buying, was just pointing out info frm the site. And dreamINdigital answered ur question, so there u go, have fun.
     
BryanBowie
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Oct 17, 2006, 12:19 PM
 
Im running two 1GB 533MHz sticks in my BlackBook, it works perfectly fine, and the difference between 667 and 533 isnt anything to be concerned with!
     
adihez  (op)
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Oct 17, 2006, 09:55 PM
 
thanks everyone!
antigravity..
     
   
 
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