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M3A770DE Mosfet Heatsinks

post #1 of 7
Thread Starter 
Basically, I need a little help in determining which MOSFETs need heat sinks.
There are 4 groups of 3 and a group of 2 on the left of the CPU, are they the only ones that need heat sinks? Because there are more around the ram slots

http://www.asrock.com/mb/overview.asp?Model=M3A770DE

See Third Post
Edited by Lolwhutsteve - 3/17/11 at 12:10pm
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post #2 of 7
Yep!

Pretty much all of the ones to the left of the CPU socket, down amongst the chokes

Don't worry about the ones on the right.
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post #3 of 7
Thread Starter 
Thank you, and now all I have to do is obtain the heat sinks, which is what this post is about

The Enzotech MOS-C1's (http://www.newegg.ca/Product/Product...-011-_-Product) are sadly out of stock on newegg, and another vendor is not an option

Then I found these, Vizo CPS-22 (http://www.newegg.ca/Product/Product...82E16835425005)
Wondering if its OK to use these on the mosfets, as they fit perfectly dimensionally wise, but they will be covering 3 mosfets per piece, and Idk if this is safe or not
For the top 2 I would have to cut a piece out of one though, is this also ok?
any help appreciated

http://www.asrock.com/mb/overview.asp?Model=M3A770DE
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post #4 of 7
The VIZO ones would be bigger but they might work for you
post #5 of 7
Thread Starter 
Yeah I know they're bigger, and besides the top one they should be perfect, its just,could there be problems tripling up mosfets on one good sized heatsink?
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post #6 of 7
Rarelly you can see such a stupid VRM layout.
That Asrock engineer should be punished seriously.
It s like he designed the area to "help" you install heatsinks in there
   
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post #7 of 7
Might wanna take some measurements... i.e. compare your board to whatever listed length of those
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