help with a motherboard

I have an ASUS Rampage IV Extreme and was wondering if any one knew of the dimensions down to the millimeter for the heatsink closest to the i/o ports?

Thanks
jschultz0614Asked:
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dbruntonCommented:
Board dimensions 12 inch x 10.7 inch ( 30.5 cm x 27.2 cm )  from http://www.asus.com/Motherboards/RAMPAGE_IV_EXTREME/#specifications

Extremely large graphic of the board http://cdn.wccftech.com/wp-content/uploads/2013/04/ROG-Rampage-IV-Extreme.jpg

Copy picture into IrfanView http://www.irfanview.com/main_download_engl.htm and scale to a size appropriate to your monitor screen.

Drag lines across the graphic and measure in pixels the board length and width.  Repeat but measure the heat sink.  You can now calculate the length and width of the heat sink using ratio formula.  Height of the heat sink I can't calculate and neither the thickness or any of the cutouts.

If unsure about the ratio formula then ask.
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jschultz0614Author Commented:
it is too early to think, so if you could provide that ratio, thanks.
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jschultz0614Author Commented:
I Think I've got the mm dimensions of the heatsink, however, ASUS appears to have placed a mounting hole one complete rib back from the top edge (sneaky jerks)So, I wil finish this question as soon as I can verify with calipers.

thanks again.
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jschultz0614Author Commented:
However in the meantime would you provide those ratios, also for verification.

Thanks

BTW
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here is what I found.

width = (27.2 cm * 80 px) / 1077 px = 2.020427 cm

height = (30.5 cm * 309 px) / 1208 px = 7.081738 cm

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Thanks again
John
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jschultz0614Author Commented:
I've requested that this question be closed as follows:

Accepted answer: 450 points for dbrunton's comment #a39542366
Assisted answer: 0 points for jschultz0614's comment #a39548440

for the following reason:

never came back on to provide ratios.
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dbruntonCommented:
Apologies.  Got distracted elsewhere.

But yep it looks like you've done the work so close the question.
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jschultz0614Author Commented:
I started thinking about something with that heatsinc. The size of the sinc does not match the mounting bracket or the mounting holes, except the bottom one. The top off set hole for the bracket is bit way back under the heatsinc.

According to EK if you cool the other set of mosfets/vrms then the set ive been beating my head against my desk for the past year and the just of this question originally is all about. any other ideas before I really break out the calipers? lol
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dbruntonCommented:
What exactly are you trying to do because I'm not understanding your last comment?
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jschultz0614Author Commented:
Sorry about that. EX manufacturers water cooling blocks (if you already knew that my apologies.) The full board water block they have for this board is missing that mosfet/mvr plate. When I opened my case, I was able to get a fairly good look at it and noticed that is you look, from the top, about 2 ribs down, there is a screw hole. When looking at the heatsinc from the top, it overhangs from that mounting spot. Also, I used a pair of calipers on the length and I averaged 75.675 mm. So based on the caliber reading vs the math, looks like there is a +/- 3mm variance. I could not measure the width, the processor cooling tower was in the way.

Segueing back, EK has told one of the vendors I am dealing with. that if you cool the mosfets/vrm between the ram banks it should cool the othrs.
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jschultz0614Author Commented:
so in a nutshell, I am trying to figure out the size the the heatsinc.
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dbruntonCommented:
I think you are after the heatplate, the piece of metal that sits on the MOSFETs and transfers the heat to the waterblock.  It appears that the waterblock sits on the heatplate.

For example Koolance here http://koolance.com/mvr-40-motherboard-vreg-water-block has a water block and recommendations for heat plates and diagrams as well.  A link leads to this Asus heat plate http://koolance.com/mvr-heat-transfer-plate-72mm which may or may not be the one you want.

This site http://www.frozencpu.com/cat/l2/g30/c293/list/p1/Liquid_Cooling-Water_Block_Mosfet_Volt_Reg.html has various heatplates.  This one http://www.frozencpu.com/products/7366/ex-blc-483/EK_Mosfet_Backplate_ASUS_1_3_3a.html?tl=g30c293&id=mgqQZJQG is possibly for RAMPAGE boards 1-3

But there are a lot of different ones there.  For example the one above has dimensions of 75.5 by 13 and there is one of 72 by 16 and 76 by 16.
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jschultz0614Author Commented:
OK, I ordered both the MVR-40 and MVR-PLT72 we'll find out. I might have to order a shorter plate. not shure yet. Thank you so much for the assist and I will post my findings as soon as the package arrives.
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jschultz0614Author Commented:
addendum...

The MVR-PLT72 is too long, the maximum plate length has to be no more then 59.84 or 60 mm by 19.45 or 20 mm. Im going to go with the mvr-40 itself and se if I actually need a transfer plate.
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