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Old July 21, 2009, 05:31 PM
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Default mcw60-4870 GPU water block

Little confused as too what to do on the memory chips for this block do ya use paste on them. The instructions didnt mention anything about the mem chips, just gpu and mosfets so am kinda lost on this one.

Thx in advance.
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Old July 21, 2009, 05:37 PM
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did your 4870 original heatsink cover the ram chips. i ask because my 4870 from palit did not cover the memory chips and to do so will cause them to run hot. ( i just have a fan blowing over mine and i have the same gpu block)
So make sure that you are supposed to cover them and if so then just use thermal tape.
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Old July 21, 2009, 05:39 PM
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The MCW60 4870 block will cool the GPU and MOSFETs, but DDR5s need RAMsinks on them.
NCIX.com - Buy Swiftech MC14 BGA Memory Heatsinks (8 Pack) - MC14 In Canada.

NCIX.com - Buy Swiftech MC14 BGA Memory Heatsinks (8 Pack) - MC14 In Canada.
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Old July 21, 2009, 05:40 PM
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Quote:
Originally Posted by gingerbee View Post
did your 4870 original heatsink cover the ram chips.

That's a good question man. Some Powercolor 4870s slipped through NCIX without RAMsinks on DDR5s, and many users reported card failures.
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Old July 21, 2009, 05:43 PM
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all palit non-reference cards do not have any memory sinks and using them is not a good idea if there not supposed to be there make sure from the company that you bought it from.
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Old July 21, 2009, 05:49 PM
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The RAMsinks are missing because Palit thinks the cooler's airflow is enough to cool the chips.
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Old July 21, 2009, 06:07 PM
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K have a mcw60 on one card now and ram sinks on the mem chips, but this block covers the mem also at the same time as the gpu it is a full cover for gpu and mem or am I missing something? The mosfets are a little distance away and are also covered on the block by a side mounted heatpipe that connects back to the main full cover block. My regular mcw60 just does the gpu and then used some the ram sink included in my kit to cool what mem chips I could, the 2 under the hose barbs I couldnt get sink onto as is no room. So this time when purchasing this new block I also bought some custom made sinks to properly cool the mosfets and the ram in a 2 piece system of alluminum sinks designed for 4890 and 70 cards. to properly cool the original card I just have the standard mcw60 on.

Links to the 2 products i bought are below.

Petra's Tech Shop

Petra's Tech Shop

Last edited by nasrott; July 21, 2009 at 06:14 PM.
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Old July 21, 2009, 06:10 PM
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OH word I forgot that the MCW60-4870 also had the extra sections for RAM cooling.

You don't need the iandh cooler. For cooling the memory, just make sure you apply some thermal compound (MX-2 for example) onto the chips. Beware that if you're using a conductive compound like the AS-5, keep it off any contacts.
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Old July 21, 2009, 06:17 PM
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ya the landh is for the other card without the mem cooler on the block
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Old July 21, 2009, 06:47 PM
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Yeah that'll work

Be sure to cool the mosfets well
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