Thermalright HR-07 Trio Heatpipe Coolers Page: 1
Ask any enthusiast worth his salt which manufacturer makes the best air coolers and more often than not, the company that gets the honours is Thermalright. The all conquering Thermalright Ultra Extreme CPU air cooler was widely accepted to be the best CPU cooler for the s775 based motherboards. Along with the TRUE, Thermalright expanded on the successful design with chipset and MOSFET heatsinks. They also made memory heatsinks which worked perfectly for those using two slots.
Problems however were encountered with using the same heatsinks for the latest Intel chipset because the new design heralded the advent of 6 memory slots, all packed closely together meaning the old Thermalright design could not be used successfully with all six ram slots populated. Never ones to stand still, Thermalright have just released the HR-07 Trio pack which consists of either Type H (high) or Type L (low) heatsinks to combat i7 fitment. Should you wish to cool all six modules together then you now can with the latest kits. 
Here's what Thermalright had to say about their latest cooling product:
- You won't have to worry about space. Easy installation, no tools needed, able to install 6 DIMMs, high cooling performance and extends life expectancy of your memory module. What more could you ask for?
- Double heatpipes to double heatsinks for fast and efficient cooling
- Proprietary through holes on every fin for efficient ventilation in passive mode
- Vast compatibility across multiple types of memories
- No tools needed for an easy installation keeping manufacturer’s warranty in tact without voiding it
- Supports triple-channel Mode. Option to install on all four memory slots
- Warranty in tact without voiding it
The following specifications were taken directly from the Thermalright product page:
HR-07 TRIO TYPE H Technical Spec
* Dimension : L128 x W19 x H85.28mm ( High Version)
* Weight :85g ( High Version)

HR-07 TRIO TYPE L Technical Spec

* Dimension : L128 x W19 x H56.28mm (Short Version)
* Weight :80g (Short Version)
Memory module Compatibilities
* DDR1/ DDR2 / DDR3 (only support duble sided memory module)
*without ECC&FB-Dimm memory
Let's take a look at the packaging and presentation of the HR-07 Type H and Type L memory coolers...

Thermalright HR-07 Trio Heatpipe Coolers Page: 2
Packaging & Appearance
Because of the close proximity of the memory modules on i7 motherboards, Thermalright recommend both the Type H (High) and Type L (low) profile kits so that both kits can be used in unison with one another. Here, we look at each kit in greater detail:
The packaging the Ram cooler arrives in is a standard Thermalright affair with a plain brown cardboard box, printed with the Thermalright logo and product name on the front with a small window cutout displaying the cooler inside. The rear of the box  features much the same but this time including the product specification.
front box box rear
Opening the box up we are a greeted with the coolers themselves which are held tightly in place by means of moulded Styrofoam. Also included in the box are 6 full length thermal pads complete with removable backing. A large sticker and an easy to follow instruction leaflet are also included.
pads instructions
The Type H variant of the Ram cooler is unsurprising the highest of the two kits, standing 60.37mm high (almost 2.5" for those still working with imperial measurements). Two nickel plated copper heatpipes attach the finned array to the ram cooler plates ensuring super efficient thermal transfer from the plates to the outside air with minimal fuss. 
cooler 1 cooler 2
The base plates are very thin yet sturdy enough not to bend accidentally and because the heatpipes are flattened to the plates on both sides, the ram cooler should not foul any module sitting along side. The main fin array may however cause difficulties in this area, something I will investigate later in the review in the test setup area.
cooler base cooler perspective
The Type L kit is packaged in near identical format to the Type H above. Despite the large 'TYPE L' font, I initially thought I had been sent two lots of the same kit. I even chastised the editor, calling his and indeed Thermalrights intelligence into question. It wasn't until I opened the kit up that I realised that the two kits were in fact slightly different and labelled as such on the outside of the boxes. Needless to say I ate humble pie for dinner that night.
box front box rear
Being an 'L' kit, the Type L sits shorter than the Type H at just 34.27 (1.35"). Sitting at approximately the same height as most other memory modules that comprise a double height cooler, the Type L is perfect for those who are short on space but still require good memory cooling.
cooler 3 cooler 4
The Type L uses the same design features of the Type H in that each module has a heatpipe attached to both sides of the base plate. This heatpipe then winds through 180 degrees, threading itself through the finned array to dissipate the heat it wicked away from the base plate.
perspective 1 cooler 4
With each cooler sitting side by side it is clear that it is going to be a tight squeeze fitting these next to each other in the DIMM slots on any motherboard. However, once both are 'test fitted', there does indeed seem to be sufficient space to use both kits alongside one another.
together 1 together 2
Installing the modules was very straightforward. After taking the usual anti static precautions and banning the editor from sneaking up behind me to rub a balloon on my head after the previous comments I made, I set about installing each of the six kits. Luckily for me I happened to have 12GB of Kingston Value ram laying around which was perfect for this test in that I did not have to remove any heatspreader to get to the modules inside. After giving the IC's the once over with some Isopropyl Alchohol, I removed the backing from one strip of the thermal pads and then attached the pad to the module. While the 0.5mm pads were sticky, they were not overly so and could be used on multiple mounts with the minimal of fuss.
stock memory pad1
With the pads in place, I then began to attach the memory cooler which simply slid over the thermal pad with very little force. The memory cooler exacted just enough force to clamp down on the memory module to hold the thermal pad in place. Rinse and repeat for the rest of the modules and I was then ready to test them out to see the fruits of my labour.
slide on in place
Let's take a look at the test setup I used and installation of the Thermalright HR-07 modules on the motherboard...

Thermalright HR-07 Trio Heatpipe Coolers Page: 3
Test Setup

For today's testing we will be using the Lanparty T3eH6 DK, a mid-range Core i7 motherboard from DFI that will allow us to push the memory on test to its absolute limit. Here's a breakdown of the rest of the components:
Intel Core i7 920 'Nehalem' @ 2.66Ghz

DFI Lanparty T3eH6 DK

Kingston Value CL9 1333MHz 9-9-9-24 6x2GB kit
Kingston Value CL9 1333MHz 9-9-9-24 6x2GB kit(Overclocked to 8-8-8-24 @ 1600MHz)

Kingston Value CL9 1333MHz 9-9-9-24 6x2GB kit

Kingston Value CL9 1333MHz 9-9-9-24 6x2GB kit(Overclocked to 8-8-8-24 @ 1600MHz
Measuring the temperature of the DIMMs is no easy feat. While some DDR3 modules do have an in-built digital temp diode, allowing the temperatures to be read from a software based monitoring program, the kit I have today does not so I will have to rely on a temperature probe which was affixed in the same place both with and without the coolers attached.
 temp temp
As you can see from the pictures below, the memory modules on their own (6GB pictured) look very basic. Add the Thermalright coolers and hey presto! A bog standard memory kit is transformed into a work of art. If bling is your think then you will certainly adore the Thermalright HR-07 memory coolers!
memory stock better?
Fitting the modules to the motherboard was a tricky affair with a H-L-H-L-H-L configuration used. This allowed all six modules, three high and three low, to be fitted into the six DIMM slots. A small amount of wriggling the modules was needed to fit them all and they had to be fitted in a specific order to get them all to fit.
front rear
perspective clearance 1
With the fan re-attached to our CPU cooler, space was very tight but all six modules were clear of fouling the fan. Larger CPU coolers (such as the TRUE will have to be orientated such that the width will have to be adjacent to the coolers rather than playing against them otherwise I cannot see how it will fit. Luckily for me I already had the CPU cooler fitted this way so not to intrude on the HR-07's airspace. You can also see from the picture below that the coolers do not overhang the DIMM slot's tabs nor interfere with the GPU spacing which is great news for those tight on space.
clearance close clearance GPU
With everything now in place, all that remains is to test the modules performance out. Let's see how I got on...

Thermalright HR-07 Trio Heatpipe Coolers Page: 4
To stress the memory as much as possible, in turn heating up the modules to the maximum possible, I ran multiple instances of Prime 95 25.8 64bit version. Both 'Blend' and 'Large fft's' were run with 'realtime' priority and average temperatures were taken after 30 minutes of priming. Ambient temperatures were kept as close to 23c as possible throughout the testing to eliminate any bias.
Wow! Those readings sure are something to behold. While the ram I am using in this review is nothing too hot, temperatures under load began to nudge the 60c mark. While those temperatures are still well within specification, I do wonder how higher end modules with tighter timings and higher speeds would fare. Not only that, but running at those temperatures will almost certainly shorten the lifespan of the memory.
Adding the Thermalright coolers knocked almost 17c off those temps when the modules were placed under 100% load. This is an amazing feat and while the differences would no doubt be less with modules which already have heatsinks attached, I would argue that the Thermalright coolers are much more efficient at cooling than any pre-heatsinked module could offer.
I did try overclocking the memory further but alas on this occasion, temperature wasn't the limiting factor in the memory overclocking department. Should your memory be cooking itself though, I would certainly suggest adding a set of these coolers and even if it's not, for the bling factor alone, these colours are the business!
Let's head over to the conclusion where I compose my thoughts...

Thermalright HR-07 Trio Heatpipe Coolers Page: 5
Memory cooling is often overclocked as a needless accessory. Much the same as MOSFET cooling adds little, if anything, to overclocking, memory coolers appear to be little more than a fashion accessory. If memory doesn't have a heatsink then you will be seen as an outcast in the overclocking community. E-peen, it seems walks hand in hand with bling these days and if bling is what you need, then the Thermalright has it in bucket loads.
The packaging of the product was excellent. Despite the bland printed cardboard box, this did have an aura of excellence about it, perhaps because I am influenced by previous Thermalright products I know to be good. That said, the interior packaging was excellent and I find it hard to criticise what is almost a perfect example of how a product of this nature should be packaged.
Performance of the HR-07 was nothing short of amazing. With no fan to aid airflow, the coolers managed to keep temperatures of the memory well within check. I was sorely tempted to wind up the voltage dial to see if the extra volts could enable me to push the kit further but feared killing the modules with overvoltage as they are sadly just a test sample. That said I have little doubt that the HR-07 would still keep the temperatures within limits even if the voltage were to be increased and they will almost certainly extend the life expectancy of the ram which is perhaps, aside from the bling I mentioned earlier, one of the most attractive features of ram cooling.
The price of the kit may be the one thing that prevents this product from becoming a top seller. $50 for each 3 piece kit on the outset appears to be very expensive, especially if you have six modules to cool ($100) but when you consider that a high end CPU heatsink costs more than this and there is perhaps more work involved with the three memory coolers, the price does not seem too bad. How much you value your memory will perhaps be the defining factor of whether you see these memory cooling kits to be a sound investment.
So with the Thermalright HR-07 modules you get almost the best of everything, low temperatures, higher overclock potential, extraordinary looks. In the product description Thermalright pose the question 'What more could you ask for?'. Apart from a lower price? Nothing is the answer I would give.
The Good
- Exceptional cooling performance
- Totally silent
- Stunning looks
- Great packaging
The Mediocre
- Price may be an issue for some
The Bad
- Nothing
Thanks to Thermalright for supplying both HR-07 kits for today's review. Discuss in our forums.