Question re: Megahalems Rev.B/ASUS P8Z68-V PRO

[Infomastr]

I recently installed this heatsink on an ASUS P8Z68-V PRO motherboard (socket 1155), following the instructions for the socket 1156 chipset. My understanding is that the mounting is identical for sockets 1155 and 1156.

It was not possible to fully secure the backplate (Intel Step 4 - http://www.prolimatech.com/en/products/detail.asp?id=155&subid=413#showtab) without the use of the LGA 775 spacer. The issue was that the rivets protrude too far through the holes in the motherboard when the backplate is not raised by the LGA spacer. As a result, when the double headed screws are used to secure the backplate, the screw heads are too short and can be screwed into the rivets all the way. I found that 2 of the 4 sides of the backplate wobbled even after all four double headed screws had been fully secured. I am not sure if the issue is the thickness of the ASUS motherboard (perhaps it is too thin or the socket itself has less depth). In either case, use of the LGA 775 spacer resolved this issue and created a secure fit.

My question is this: are there any risks or problems with use of the LGA 775 spacer on a socket 1155 motherboard? I am not sure how else to secure the backplate without some additional spacing between the backplate and the motherboard. The LGA spacer does the trick but if there is another, more appropriate solution, I'm all ears.

Thanks!

 

[abekl]

You are asking a very good question and I'd like to know Prolimatech's official answer. Why don't you ask their tech support and follow up here with what they say?

 

[Infomastr]

You are asking a very good question and I'd like to know Prolimatech's official answer. Why don't you ask their tech support and follow up here with what they say?

i emailed them this exact question and cross posted here for additional info. if i receive a response, i'll certainly share.

 

[BTRY B 529th FA BN]

This i gotta see, subscribed

 

[Infomastr]

Here's the response:

Hi,

Thank you for your email.
I'm afraid that it will cause too much pressure for mother board if you use the LGA 775 spacer on LGA 1155.
Actually what you have is perfectly normal. You can find more info here: http://www.prolimatech.com/en/support/index.asp?itemid=20
If you are still worry about the gap, we would like to send to some washers to fill it.

Best regards,
Minna Yu
Prolimatech

I asked to be sent additional washers.

There are installation videos around the net of people using the LGA 775 spacer on non-LGA 775 mobos (e.g., http://www.youtube.com/watch?v=gBrLHbblHBM - this appears to be an LGA 1366 mobo based on the screw hole positioning of the front mounting brackets). These are inconsistent with the response above, but I'll take the mfg at face value and re-assemble (despite it being a pain).