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Intel Core i7 CPU Water Block Roundup May 2009

Cooling/Water Cooling by leeghoofd @ 2009-05-20

Cooling down Intel´s latest CPU with air cooled heatsinks is fine if you don’t plan on extensive overclocking, once you want more though you will have to look for better cooling solutions. We take a look at seven CPU water blocks from EK, Enzotech, Koolance, OCZ, XSPC and Swiftech to see if they can tame the i7 heat monster, also known as Nehalem.

OCZ FLow MK1

OCZ FLow MK1

OCZ is mainly known for their ram products. Though over the years they have enlarged their gamma with power supplies, air and water cooling products and OCZ even managed to got a phase unit in limited quantity on the market.

OCZ about the HydroFlow HF-MK1 CPU Waterblock :

Designed with the highest possible exchange rate between the block and coolant, the HydroFlow can be easily integrated into any enthusiast water cooled system and help efficiently lower the processor temperature. The HydroFlow is compatible with AMD and Intel processors, including the latest generation Core i7 CPUs.

The triangular fins in the HF-MK1 provide the highest volume to surface ratio of any geometric shape for best dissipation possible, and this special design also creates sufficient turbulence to eliminate the “skin” effect caused by laminar flow. The base block of the HydroFlow increases center contact with the processor core for the greatest possible cooling potential, ensuring maximum exchange and functionality between the waterblock and CPU.

OCZ opted for big triangular pins (if you ever dissemble the block please make sure you remount it in the correct way)

OCZ differs from most blocks with the bottom surface. There's a small protrusion (24 x 24mm), while most blocks are flat for maximum surface contact with the Heat Spreader of the CPU.

Madshrimps (c)

The Flow's mounting mechanism is also very easy to assemble and ensures a solid mount over and over again.

Madshrimps (c)

Comment from Kougar @ 2009/05/22

Apogee GTZ has problems... screwing it down can grind off a layer of motherboard PCB if the person doesn't tighten with fingers only. The GTZ LGA1366 backplate is extremely easy to strip the threads on as well.

Starting to wish I had gone with the D-Tek block instead.

Comment from leeghoofd @ 2009/05/22

I only used my fingers the tighten down the GTZ screws. Normally you can only tighten it as much as the backplate allows, unless using brute force. Do you have any pictures of your damaged backplate, mobo ? You can always ask for a replacement plate. I'll pass the info at Swiftech if you wish.

One of my screws was a bit damaged and I needed to some abrasive sponge to clean its thread. Then a drop of oil in the backplate and now it went in 100%

Performance wise I have my doubts if the Fuzion v2 is better then the GTZ (sadly I never got a sample, D-Tek never responded once)

Comment from Kougar @ 2009/05/23

Wasn't trying to brute force it, just tighten until the screws "lock"... but apparently they don't lock with this choice of backplate. On the Apogee GT they "lock" with the old style mounting mechanism.

The Apogee GTZ LGA1366 backplate does not fit well on Gigabyte boards, the foam inserts overlap three solder points on the Extreme/UD5/UD4 models and prevents the backplate from sitting flush. If you remove the foam then you will short out the socket. Instead I stripped the threads on one corner of the backplate and scratched up the PCB in three corners trying to get a flush, tight mount.

I do not have photos, but that is a good idea. I appreciate your offer but I am planning to write Gabe personally, in the very least I'm not paying another $10 + shipping for a stupid backplate design. I don't understand why there are clear plastic washers on the backplate, but not on the underside of the mounting screws to prevent shorts/PCB damage.

I am using the Thermalright LGA1366 backplate kit right now... much better design. The screws also "lock" into place and cannot be overtightened and they do not touch the PCB at all. It also fits fine and does not have issues with the solder points.

Comment from leeghoofd @ 2009/06/12

Sadly I don't think their wil be a follow up to this test as we haven't heard anything from Aquatuning since end of April ( to get some european samples ). Samples were being readied, but no reply to any mail requesting a status update... bummer

Comment from Kurgan @ 2009/06/12

OT but I'd love to see a review on Primochills new TYphoon III. Any chance we can see one in the near future?

Comment from leeghoofd @ 2009/06/12

We asked for a corsair L50 sample, looking forward to give that one a go

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