Downclocking RAM on MacBook White Unibody Mid 2010 model

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Hello. I recently bought 2 4GB RAM @ 1333mhz. The thing is, since Mac OS X does not have BIOS, it does not change the RAM's clock speed to its required speed. When i mix the ram, however, with one of my previous 1GB RAM, it works as 5GB. I have bootcamp and tried using Thaiphoon but it seems like you can only write the SPD with registered version. :\ any help?
The RAM brand is Micron, btw.
 

chscag

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Your Mac's Specs
2017 27" iMac, 10.5" iPad Pro, iPhone 8, iPhone 11, iPhone 12 Mini, Numerous iPods, Monterey
Return the memory and purchase the correct modules for your 2010 MacBook. Macs are very fussy about using the correct memory. Faster memory only causes problems.
 

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