I was talking with a local retailer today who said that the MBP will only run with 666mhz RAM, and not with 533. My understanding is that the chipset does support 533 without downclocking the CPU FSB. Can anybody verrify that?
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I know in the PC world that if you put a slower memory in and (its supported) that the FSB would automatically adjust it's speed to compensate for the slower speed, thus less likely having an error.
However, why would you wanna put something slower in? -
Actually, most CoreDuo laptops don't downclock the CPU. They just run on a ram divider.
I'm wondering if the MacBook activates a divider?
Why would I? Because I already have the 533 RAM from an other machine. -
They don't downclock the CPU, they downclock the RAM. The RAM can only run at the slowest speed available. Meaning if you have 667 and 533 it will all run at 533 because it needs to be the same. Unless something has changed that I am unaware of. It really is not a big deal anyway. You cannot tell the difference unless you run benchmarks all day.
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(no i don't overclock, I don't believe in doing them)
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I'd just load up Adobe Creative Suite CS2's Photoshop and see what opens first.PS is a large program to open, so its gonna be the one that does a lot of action involving ram.
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OK, all debates asside and all questions about why, does the MacBook support 533mhz RAM? I am assuming it should, but am looking for some verification.
Thanks.
MBP with 533 RAM??
Discussion in 'Apple and Mac OS X' started by RogueMonk, Jun 29, 2006.