Sapphire RX480 with Sapphire HD7870 ghz edition 4 heatpipe cooler, memory heatsink and fan shroud.. - Overclock.net - An Overclocking Community

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Sapphire RX480 with Sapphire HD7870 ghz edition 4 heatpipe cooler, memory heatsink and fan shroud..

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post #1 of 32 (permalink) Old 07-11-2016, 08:24 PM - Thread Starter
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Figured I would share this with you guys.. I found something yall will find entertaining...

I had a hunch and I was correct. I guess an old dog can get lucky from time to time..

Heres my $20 cooling mod.. I also ordered a 20gram tube of Artic mx-4.

The donor is one burnt up Sapphire hd7870 ghz edition.... The parts as needed, one 4 copper pipe heat sink, the small black memory heat sink, the shroud and fans from the HD7870 ghz edition and the retention frame from the rx480..

I do need to order two replacement fans as one of them on the shroud is bad, so I'll order a pair and have a spare.., I need to order some heat sinks for the other 4 memory chips after I figure out what I want or need, or if I even need them, I think there will be plenty of air on the rear chips..The side chips will have the black heat sink on them, they are the the chips covered by the 4 heatpipes..


I actually thought I'd need to machine some clearance some where but its pretty much a drop on install as far as I can see.. All of the the pictures below of the heatsink on the 480, it is bolted down with the factory retention plate and screws..
its been a complete bolt on.... I was thinking the bolt hole sizes were different but that wasnt the case..


The difficulty of the install has been removing the factory stuff and bolting on the hd7870 heatsink and fan shroud and using the rear rx480 support and bolt it on, like it was meant to be there...

There looks to be plenty of clearance where there needs to be for some heatsinks.. I think the rx480 support frame/fan brace will fit but the rear fan will need to be removed. and the hump of the frame that goes over the 6pin connector... I might need to trim some places here and there on the frame but thats no problem for a retired mold maker...

I havent tested it and wont be able to for a few days as I'll be waiting on fans and possibly heatsinks to arrive..


Heres what pics I've taken so far, i'll likely add some more...















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post #2 of 32 (permalink) Old 07-11-2016, 08:26 PM
 
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Are you going to put a heatsink on the voltage regulators?
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post #3 of 32 (permalink) Old 07-11-2016, 08:28 PM - Thread Starter
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Adding this in...

I havnet been able to test it yet, but the tdp of the sapphire hd7870ghz edition is 175w so I'm thinking it'll be enough.. I would have rather tried a Sapphire hd7870 vapor-x but could not find an as-is or non-working one for sale any where... I think that would work also, but not certain..
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post #4 of 32 (permalink) Old 07-11-2016, 08:31 PM - Thread Starter
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I'm thinking the stock frame will fit and I might just use it.. or i might order some off ebay when I order the replacement fans... I dont have calipers or steel rule here to do any measuring with..
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post #5 of 32 (permalink) Old 07-11-2016, 09:19 PM - Thread Starter
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The stock support frame/fan will need to be trimmed for it to fit under this.. from the rear of the pcb back (stock fan mount area) will need to be cut off at the end of the card.. also the hump on the frame going over the 6pin plug... After my fans come in and I can get a day to get out to my shop and do some more fitting I'll fill you guys in some more..
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post #6 of 32 (permalink) Old 07-11-2016, 09:20 PM
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Good luck with it! It looks awesome. Hopefully it works out well.

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post #7 of 32 (permalink) Old 07-12-2016, 11:05 AM - Thread Starter
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After tinkering with it some, the rear retention bracket is just too tight without the support frame/fan mount.. and it would be better to just bolt it on with screws with plastic washers under them or bend the retention frame so there is not so much pressure on it without the frame.. if I can get the frame cut down to fit it will be ok as is.. but running without the frame and individual heat sinks the pressure of the retention frame needs to be decreased because it pretty much bends the card without the frame.. I noticed it when I unbolted the heatsink..
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post #8 of 32 (permalink) Old 07-13-2016, 11:37 PM - Thread Starter
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A little paint on the fan shroud while I'm waiting on parts.

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post #9 of 32 (permalink) Old 07-14-2016, 02:37 PM - Thread Starter
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replacement fans came in.. stuck them on the fan shroud.. still waiting on heatsinks and thermal tape, epoxy, and paste.
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post #10 of 32 (permalink) Old 07-14-2016, 02:44 PM
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Looking good man, I'm rather interested in seeing your results.

Good luck!

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