Swiftech cooling solutions for ATI 5970, 5870 & 5850 released

The following cooling solutions have now been released, and will start shipping to the channels this week:

Epsilon HD5970 full cover water-block

Top
http://www.swiftnets.com/assets/imag..._FRONTX800.jpg

Bottom (note how ALL critical areas are cooled for max OC)
http://www.swiftnets.com/assets/imag...N-BACKx800.jpg

Installed - top
http://www.swiftnets.com/assets/imag...-FRONTX800.jpg

Installed - back
http://www.swiftnets.com/assets/imag...-BACK-x800.jpg

Flow path (for reference.. Clear PC not available at this time)
http://www.swiftnets.com/assets/imag...FRONT-X800.jpg

Pin matrix detail
http://www.swiftnets.com/assets/imag...MATRIXX400.jpg

Flow Curve
http://www.swiftnets.com/assets/imag...Epsilon-PD.jpg

Package content
Epsilon™ HD5970 AC Waterblock with black acetal housing, custom high-performance black-anodized aluminum back-plates, (2) plugs, pre-applied thermal pads, Arctic Céramique thermal grease, mounting screws, installation guide, barb fittings not included

MSRP $169.95

and...

Heatsinks for Radeon HD5800 series

Available versions:

HD5850-HS, for Radeon™ HD5850 reference design boards
HD5870-HS, for Radeon™ HD5870 reference design boards

Top view (common to both models)
http://www.swiftnets.com/assets/imag...850-HSx400.jpg

HD5850-HS & MCW60 installed - top
http://www.swiftnets.com/assets/imag...talledX800.jpg

HD5870-HS & MCW60 installed - top
http://www.swiftnets.com/assets/imag...talledX800.jpg

MSRP is $28.95

5970 Epsilon block is :eek:

Wow. Very cool the ''pre applied thermal pads'' for the HD5970. Nice block Gabe! And a replacement backplate, shorter than the stock one, delivered into the bundle, very good idea.

Do you know when (and where) this will be available for Europe?

A question about the GPUs cooling for the 5970: what is the benefit of the pin matrix? Compared with other solutions on the market for HD5970, what is the benefit of this design?

I consider to go back on a HD5970 if Fermi is not as good as I expect it. I had one (5970) with another waterblock, but swapped it for GTX295 sli because of stability issues. So... I think that you bundle for HD5970 looks very good. And some more details would be welcome :)

Best regards,
Cyril

Quote:

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Originally Posted by Scaniris

Wow. Very cool the ''pre applied thermal pads'' for the HD5970. Nice block Gabe! And a replacement backplate, shorter than the stock one, delivered into the bundle, very good idea.

Do you know when (and where) this will be available for Europe?

A question about the GPUs cooling for the 5970: what is the benefit of the pin matrix? Compared with other solutions on the market for HD5970, what is the benefit of this design?

I consider to go back on a HD5970 if Fermi is not as good as I expect it. I had one, but swapped it for GTX295 sli because of stability issues. So... I think that you bundle for HD5970 looks very good. And some more details would be welcome :)

Best regards,
Cyril

---

The pin matrix lowers the block thermal resistance at the GPU level, in other words: it means better temps at any flow rates. One of the critical benefits is the ability to run at very low flow and still get outstanding performance (like the apogee XT for example). I see for example that you are interested in silent operations. I demonstrated a silent (guesstimate at ~ 24 dBA) system at the XS party with a setup similar to yours (quad sli), and temps under furmark remained impressively low given the load.

no full cover block for the 5850 huh? Damn

Quote:

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Originally Posted by r0bot

no full cover block for the 5850 huh? Damn

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http://www.swiftnets.com/products/Komodo-gtx285.asp

;)

Look very sexy, great work gabe.

The clear version is -AWESOME-
You guys need to put that into production!

Always great work as usual Gabe.

VERY nice blocks.
Really makes me wanna jump to the ATI bandwagon.

Quote:

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Originally Posted by r0bot

no full cover block for the 5850 huh? Damn

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Um, yes there is. In fact, I got it yesterday :up:

The HD5870 and HD5850 FC block are the same (You just switch 3 stand offs around)

How well does the the unisink cool? I am planning to get one but worry about voltage regulator overheat.

Gabe, you have any result on the VRM cooling on the 5970 block ?

Quote:

---

Originally Posted by gabe

The pin matrix lowers the block thermal resistance at the GPU level, in other words: it means better temps at any flow rates. One of the critical benefits is the ability to run at very low flow and still get outstanding performance (like the apogee XT for example). I see for example that you are interested in silent operations. I demonstrated a silent (guesstimate at ~ 24 dBA) system at the XS party with a setup similar to yours (quad sli), and temps under furmark remained impressively low given the load.

---

Thank you Gabe for your answer :up: Yes it could be very interesting for me to lower the pump speed to decrease the noise level. For the moment my D5 are running @ Speed # 3, and #4 if running some benchmarks with OCed CPU and GPU.

But for my nest rig, I'll try to configure a silent watercooling system, with highest power possible @ lowest noise level. So yes i'ts very interesting. I'm a hifi and home theater fan and the next rig will be dedicated for this. If I can achieve the low noise level target, the pc will be placed in my listening room.

Another question for you: what about the pressure, I mean you are talking about low flow rate, but do we need some higher pressure to compensate lower flow rate? In other words: small tubing, pump with high pressure and low flow rate? Or possible to use for example D5 and 7/16'' ID tubing?

Last question: do you have some recommendations for a European reseller in particular? For purchasing from Luxembourg. MP if you prefer ;)

Best regards,
Cyril

Very good blocks, Gabe :up:

Very nice with the heatsinks for MCW60, just wonder if there is any on the way for 5750/70 as I cant decide if 5850 is overkill for my use :X

Hummmm, im very tempted by the MCW60 and the heatsink ... cheap and modular lil thing.

@Gabe: those new blocks look great. I also see that you changed the top on the MCW60 to acetal instead of aluminum, which is also nice. The aluminum top with copper blocks on the old 8800GTX Steath gpu blocks, and the old Apogee GTX, was a huge mistake. I'm still disappointed about buying those two. But hey I still love you Gabe, because your MCR320 rad is still awesome, and it is still keeping things cool nearly 4 years after I bought it. The MCR320 is by far the best $50 I ever spent (and I'm not young, and I've spent $50 on a lot of fun stuff :up:). Also loving my micro-res's ver.'s 1 & 2. They're still working great too after many years of faithful service. But aluminum and copper? What were you thinking?

Quote:

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Originally Posted by Scaniris

Another question for you: what about the pressure, I mean you are talking about low flow rate, but do we need some higher pressure to compensate lower flow rate? In other words: small tubing, pump with high pressure and low flow rate? Or possible to use for example D5 and 7/16'' ID tubing?

---

@Scaniris: I think you are misunderstanding the relationship between head pressure and flow rate. Head pressure is generated by the pump. Generally speaking, higher head pressure will lead to higher flow rate. Lower head pressure will lead to lower flow rate. When Gabe mentions a low flow rate system, he probably means that you would be using a low head pressure pump, which is set to operate quietly. The other reason you would have a low flow rate system is if you are trying to use only one pump, in order to save on noise, in a very large loop with lots of restriction (pressure drop) which is thus causing low flow rate. To answer your question simply, you do not "compensate" for low flow with higher pressure, low flow is the result of low pressure. And presumably, the low pressure has been a conscious choice on the part of the system builder with the idea of reducing pump noise.

Quote:

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Originally Posted by exe163

How well does the the unisink cool? I am planning to get one but worry about voltage regulator overheat.

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Being an air-cooled solution, cooling of the VRM's is proportional to the amount of air flow, and of course overclocking/overvolting. At stock settings, passive is sufficient to keep the VRM temps within specs. When overclocked/overvolted, ventilation is necessary.

Quote:

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Originally Posted by EvilClocker

Gabe, you have any result on the VRM cooling on the 5970 block ?

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no hard data, but the combination of liquid cooling with the high-perf back-plate contributing to cool-off the board should yield outstanding results. We also made sure to cool everything... please refer to http://www.xtremesystems.org/forums/...8&postcount=35, in particular items 6 and 7 ;)

Quote:

---

Originally Posted by Scaniris

Another question for you: what about the pressure, I mean you are talking about low flow rate, but do we need some higher pressure to compensate lower flow rate? In other words: small tubing, pump with high pressure and low flow rate? Or possible to use for example D5 and 7/16'' ID tubing?

Last question: do you have some recommendations for a European reseller in particular? For purchasing from Luxembourg. MP if you prefer ;)

Best regards,
Cyril

---

For reference, the MCR Drive that I used for the Demo had an MCP355 with PWM, running at 1400 rpm's instead of 4500 rpms. The unit was totaly silent. Temps were great even whith substantial GPU overclock.

Resellers: please contact stephanie@bacata.net for European resellers.

Quote:

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Originally Posted by Mech0z

Very nice with the heatsinks for MCW60, just wonder if there is any on the way for 5750/70 as I cant decide if 5850 is overkill for my use :X

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I haven't worked on the 5700 series, sorry, I can't answer.

for the Unisinks, should the fins be going the other direction for a better airflow path? im think of a sidewindow fan, otherwise you will want high intake pressure on the case to force air out of the pci slots. which isnt a bad thing, just a little harder to control i think.

Quote:

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Originally Posted by Manicdan

for the Unisinks, should the fins be going the other direction for a better airflow path? im think of a sidewindow fan, otherwise you will want high intake pressure on the case to force air out of the pci slots. which isnt a bad thing, just a little harder to control i think.

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I woulds just stick a 120mm somewhere under the GPU.

Quote:

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Originally Posted by Boulard83

I woulds just stick a 120mm somewhere under the GPU.

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if your running a multi gpu setup, there might not be any room between them, or not enough for a fan atlesat. and gabe did mention that there needs to be airflow on these when OCing, so im trying to understand if this fin orientation was best

For multible GPU youl could put the Fan at the Back of the 2 GPU blowing air on both card ending out of the case if you left the dual PCIE slot oponed for air flow.

It is because with the 4870x2 Caldera HS that had the fins in the direction you asked for they had people like myself asking for the other direction so we could mount a fan at the end of the board and blow the hot air out the exhaust slots. This also helps those of us without a side fan or any desire for one to properly cool the card as I couldn't fit a fan between the top of the card and the side of the case. This way if you have no side fan you can easily cool the card by either puting a fan at the end suspended from the top of your rig or just lay one on top of the HS and it would blow down all the cooling fins.

If you have a side fan just get some spacers and put a 80mm fan blowing down into the fin channels redirecting your cool case air into the channels.

IM really thinking about trying this on my HD5870. The card is kinda loud after 40% fan speed ... :)

Quote:

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Originally Posted by Baenwort

It is because with the 4870x2 Caldera HS that had the fins in the direction you asked for they had people like myself asking for the other direction so we could mount a fan at the end of the board and blow the hot air out the exhaust slots. This also helps those of us without a side fan or any desire for one to properly cool the card as I couldn't fit a fan between the top of the card and the side of the case. This way if you have no side fan you can easily cool the card by either puting a fan at the end suspended from the top of your rig or just lay one on top of the HS and it would blow down all the cooling fins.

If you have a side fan just get some spacers and put a 80mm fan blowing down into the fin channels redirecting your cool case air into the channels.

---

lol im glad that at one point they had it the other way and switched it due to popular demand. i do see both options as valid, and just curious.

Quote:

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Originally Posted by Manicdan

for the Unisinks, should the fins be going the other direction for a better airflow path? im think of a sidewindow fan, otherwise you will want high intake pressure on the case to force air out of the pci slots. which isnt a bad thing, just a little harder to control i think.

---

several reasons:

1/ users at XS asked for this
2/ it made sense to me thermally - many enthusiast cases have 120mm HD fan blowing directly in direction of back of card towarfds case exhaust
3/ this is an extrusion manufacturing process (reason why cost is so low), and we could only make the fins in that direction
5/ even when using a side panel fan, the HS still receives adequate cooling

Quote:

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Originally Posted by Boulard83

For multible GPU youl could put the Fan at the Back of the 2 GPU blowing air on both card ending out of the case if you left the dual PCIE slot oponed for air flow.

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correct

Quote:

---

Originally Posted by Baenwort

It is because with the 4870x2 Caldera HS that had the fins in the direction you asked for they had people like myself asking for the other direction so we could mount a fan at the end of the board and blow the hot air out the exhaust slots. This also helps those of us without a side fan or any desire for one to properly cool the card as I couldn't fit a fan between the top of the card and the side of the case. This way if you have no side fan you can easily cool the card by either puting a fan at the end suspended from the top of your rig or just lay one on top of the HS and it would blow down all the cooling fins.

If you have a side fan just get some spacers and put a 80mm fan blowing down into the fin channels redirecting your cool case air into the channels.

---

correct

Gabe, is there any plan on expanding the MCW60 line with more accessories? Maybe some kind of connector for SLI/CF or just extending the the G1/4 fitting above the card like most full cover blocks do. It's really hard to route the tubing correctly without putting a lot of pressure on the PCB of the card.

I love my Apogee XT block, however I fail to see how these are better than the EK 5870 blocks which actively cool the memory and VRMs.

Quote:

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Originally Posted by exe163

Gabe, is there any plan on expanding the MCW60 line with more accessories? Maybe some kind of connector for SLI/CF or just extending the the G1/4 fitting above the card like most full cover blocks do. It's really hard to route the tubing correctly without putting a lot of pressure on the PCB of the card.

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working on it

Quote:

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Originally Posted by sprayingmango

I love my Apogee XT block, however I fail to see how these are better than the EK 5870 blocks which actively cool the memory and VRMs.

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it depends on the application, and user circumstances.

GPU WB always cool the GPU better (better TIM), and dump less heat in the loop (better for the CPU), but HS isn't as apt to cool memory (no biggy) but more important now, VRM's.

- So, for silent & mild overclock, the hybrid does the job better and more economically, particularly in case of frequent upgrades, since the 60 has been re-used in many different form factors for years..
- for high overclock/overvolt, the FC cools the VRM better (unless you were to blow a lot of air over the heatsink in a hybrid config, but I admit that this defeats the purpose of -quiet- Watercooling). Yet many ppl who are on a budget choose the hybrid, and get as high O/C's as FC blocks.

The biggest practical problem with hybrids in the past has been closely spaced PCI slots, preventing ppl to SLI.. but with wider spacing now thanks to double slot cards, its no longer an issue.

All in all, hybrids still have a good life ahead for those who can't afford to buy a new WB everytime they buy a new card.

So if there is demand (and it is I assure you quite substantial), we will continue to make them :yepp:

gabe, Can we see a Pic of the 5970 block with the top on it.. how thick is the Base copper plate ?

Quote:

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Originally Posted by gabe

...So, for silent & mild overclock, the hybrid does the job better...

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Depends on your definition of "silent". In my "silent" build (which can still be picked up on sensitive studio mics ~2m away, incidentally) there is too little case airflow to cool anything even moderately warm. Hence, in my studio/ gaming/ OC machine, a FC is a far better option.

I will agree on pure economics, however. THe hybrid solution will ALWAYS be cheaper long-term.

As always, YMMV.

for 30$ i feel like im stealing it, its cost like 50$ more for a gpu that has a nicer heatsink, and its probably cant OC nearly as well as hybrid watercooling. i truly hope the MCW60 will last many more generations

gabe, I've noticed that the majority of the FC blocks use acetal (SP) over clear PC. I've been buying the EK FC's in the past because their use of acrylic (I like to see the inside). Any chance of offering more clear PC versions of the blocks?

Thanks

Quote:

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Originally Posted by EvilClocker

gabe, Can we see a Pic of the 5970 block with the top on it.. how thick is the Base copper plate ?

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not sure what you mean by "with the top on it" - see pic #2 in initial post, or clarify.

base body is machined from 3/8" thick flat stock. After machining, the main body is .180" thick + plus the height of the pedestals for memory & VRM's.

Hey Gabe, I know this is off topic but are you guys planning on making any new radiators similar in style to the XSPC or Fesers?

Gabe, What I meant was without the top.. Is the Channel in the in the Actel or the Copper ?

Hybrid cooling owns i use mcw60's on my gtx260's and they remain far cooler then a few mates EK blocks with similar components not to mention it has a higher resale value and i only have to invest $20-30 into each card instead of $100+ with full cover or just buy heatsinks so $30 for like 10 gpu's.

Can't wait for the HD5870-HS heatsink to be in-stock. :banana:

Thanks Gabe!

Hey Gabe, really nice blocks, any chance of seeing Unisink for the 5770, its a very popular card because of how it scales?

Quote:

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Originally Posted by EvilClocker

Gabe, What I meant was without the top.. Is the Channel in the in the Actel or the Copper ?

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Quote:

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Originally Posted by Makubex_GB

Can't wait for the HD5870-HS heatsink to be in-stock. :banana:

Thanks Gabe!

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you can tell how the channels are by looking at this:

http://www.swiftnets.com/assets/imag...TALED-X800.jpg

observe the opaque areas.. these are the channels machined into the housing.

I'm a bit late to the thread, but I'd like to say I'm glad Swiftech is continuing to design unisinks for usage with the MCW60 and new cards :D

After many remounts of the EK block with my 5970 and still getting problems with it freezing after 15mins of gaming (all temp readings are good) for no apparent reason, I think I'll get myself on of these.

Is stock now available world wide?

Quote:

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Originally Posted by mark84

After many remounts of the EK block with my 5970 and still getting problems with it freezing after 15mins of gaming (all temp readings are good) for no apparent reason, I think I'll get myself on of these.

Is stock now available world wide?

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have you checked the thread on this problem all you have to do is read man i am pretty sure the fix was to add an extra thermal pad because some brands changed the height of a certain chip which led to overheating and the freezing.

Quote:

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Originally Posted by Onoff312

have you checked the thread on this problem all you have to do is read man i am pretty sure the fix was to add an extra thermal pad because some brands changed the height of a certain chip which led to overheating and the freezing.

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Heh. Have YOU read the other threads? I've already read and posted in there :)

My problem isn't driver or "cold bug" related. Besides I figured that thermal pad trick out myself before searching the web for solutions to my current issue.

Well the pad thing is no coldbug or driver issue but how do you know it is not a driver issue or conflict with something in your system? do you get the problem with stock cooling?

Great looking blocks Gabe. I have not used the unisink setup yet, but I do find it very appealing...making a note to self on that setup once I upgrade to the 5000 series. ;)

Where I can order 5850 ramsink? I emailed jabtech and they said they won't stock it, and it's not even available in swiftech's own store.

The looks of your full cover are just GREAT. I definitely love it.

I'll have to buy a 5970 just to own it... damn !

Quote:

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Originally Posted by Onoff312

Well the pad thing is no coldbug or driver issue but how do you know it is not a driver issue or conflict with something in your system? do you get the problem with stock cooling?

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With stock cooling the card works perfectly.

With the EK waterblock attached after 10-15mins gaming it'll freeze the system. I've found that disabling Catalyst AI in CCC stops this from happening, but this also disables the on board crossfire.

GPU temps are in the mid 40s and the VRMs in the 50s.

I've reattached the stock cooler once or twice and each time, it works without fault and I can game on it (with AI enabled) for hours.

There's just something this block isn't cooling that it should be. All pads are making contact correctly too.

It's got me stumped. Hence why I think it'll try the Swiftech block.

Quote:

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Originally Posted by mark84

After many remounts of the EK block with my 5970 and still getting problems with it freezing after 15mins of gaming (all temp readings are good) for no apparent reason, I think I'll get myself on of these.

Is stock now available world wide?

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Depends.. Where are you located?

Quote:

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Originally Posted by exe163

Where I can order 5850 ramsink? I emailed jabtech and they said they won't stock it, and it's not even available in swiftech's own store.

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if you are in the US, call Michelle at 1-888-85SWIFT (1-888-857-9438)
or at 310-763-0338, she'll send you one.

Quote:

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Originally Posted by gabe

if you are in the US, call Michelle at 1-888-85SWIFT (1-888-857-9438) or at 310-763-0338, she'll send you one.

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The blocks look great!

Your business is now in So Cal?

Quote:

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Originally Posted by RickCain

The blocks look great!

Your business is now in So Cal?

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Always has been. Where did you think we were?

Quote:

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Originally Posted by gabe

Depends.. Where are you located?



if you are in the US, call Michelle at 1-888-85SWIFT (1-888-857-9438)
or at 310-763-0338, she'll send you one.

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So, I can order a HD5870-HS heatsink if I call Michelle??

Quote:

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Originally Posted by Makubex_GB

So, I can order a HD5870-HS heatsink if I call Michelle??

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if you are in the US, yes. But I just noticed your _GB which I have to assume is for Great Britain, right? if so you would need to wait for Bacata to distribute in the UK as we do not sell direct outside the US.

Quote:

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Originally Posted by gabe

if you are in the US, yes. But I just noticed your _GB which I have to assume is for Great Britain, right? if so you would need to wait for Bacata to distribute in the UK as we do not sell direct outside the US.

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uhh... dude?

Join Date: Feb 2006
Location: PR, USA
Posts: 675

Quote:

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Originally Posted by ButtSprinkles

uhh... dude?

Join Date: Feb 2006
Location: PR, USA
Posts: 675

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please clarify the above remark

Quote:

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Originally Posted by gabe

please clarify the above remark

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The GB comes from Get Backers. I'm located in PR, USA. That is Puerto Rico, US Territory with a US zip code. Can I still order? It's not international.

Quote:

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Originally Posted by gabe

please clarify the above remark

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Sorry, just look under his avatar... :p:

EDIT: Gahhhh.... he beat me to it. :D

Quote:

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Originally Posted by Makubex_GB

The GB comes from Get Backers. I'm located in PR, USA. That is Puerto Rico, US Territory with a US zip code. Can I still order? It's not international.

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Yes :-) Monday when we re-open!

Quote:

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Originally Posted by gabe

Yes :-) Monday when we re-open!

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F-Yeah! :D

do you guys know when ill be able to get my hands on this block in australia? thanks
edit- epsilon 5970 that is

Oh lawd, that pin matrix must be wonderful to machine.

Ordered one HD5870-HS. Can't wait to have it installed. :up:

Ive seen a few people ask in this post but I havnt seen a response yet so here we go:

Gabe, when do you think the clear ones will be available IF ever?
Just curious cause Im hoping to build a show case and 2 of these would make quite the addition :up:

5870 heatsink installed. The heatsink is doing a great job. Much better job on the VRMs than the 4870X2 caldera.

5870 running at 1000/1300 with 1.3v, OCCT GPU Error check stable.

Here are some not so great pics. Good point and shoot camera but horrible lighting in the room:

http://i59.photobucket.com/albums/g3...B/666ec790.jpg

http://i59.photobucket.com/albums/g3...B/e63171d1.jpg

what are you VRM temps when OCed in OCCT?

Quote:

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Originally Posted by Makubex_GB

5870 heatsink installed. The heatsink is doing a great job. Much better job on the VRMs than the 4870X2 caldera.

5870 running at 1000/1300 with 1.3v, OCCT GPU Error check stable.

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You can gain another 30c's on your VRM temps by removing the thermal pads, and dropping a dab of arctic ceramique on each vrm. I just did it here, and I have to say that temps are phenomenal. This O/C is before I flashed this 5850 to an asus5870 bios. Now working on improving the O/C. Nonetheless, the 1.25 voltage generates quite a bit of heat, and this is a good indication that a simple $29 heatsink with a hard grease mount instead of the soft pads, and adequate ventilation works as well as a F/C block.

http://www.swiftnets.com/assets/imag...D5850-HS-3.jpg


Now, this is the same test with totally passive cooling (no ventilation). It still remains under the max 125C limit despite the high overclock/high overvolt conditions, something that the stock cooling solution cannot do.

http://www.swiftnets.com/assets/imag...D5850-HS-4.jpg

Quote:

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Originally Posted by Manicdan

what are you VRM temps when OCed in OCCT?

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Overclocked in OCCT I get about 100~110C MAX IIRC (room temps 29C ~ 30C, I know it's hot, I live in PR).

Quote:

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Originally Posted by gabe

You can gain another 30c's on your VRM temps by removing the thermal pads, and dropping a dab of arctic ceramique on each vrm. I just did it here, and I have to say that temps are phenomenal. This O/C is before I flashed this 5850 to an asus5870 bios. Now working on improving the O/C. Nonetheless, the 1.25 voltage generates quite a bit of heat, and this is a good indication that a simple $29 heatsink with a hard grease mount instead of the soft pads, and adequate ventilation works as well as a F/C block.

http://www.swiftnets.com/assets/imag...D5850-HS-3.jpg


Now, this is the same test with totally passive cooling (no ventilation). It still remains under the max 125C limit despite the high overclock/high overvolt conditions, something that the stock cooling solution cannot do.

http://www.swiftnets.com/assets/imag...D5850-HS-4.jpg

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That's great to know. I thought if I used thermal paste it would leave a space between VRMs and heatsink. I'll try it out. Thanks.

Great product. Its good to see GPU solutions out early in the game. I think a few of your blocks for other GPUs, while just as great, came out a bit too late to be great sellers.

Quote:

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Originally Posted by Makubex_GB

5870 heatsink installed. The heatsink is doing a great job. Much better job on the VRMs than the 4870X2 caldera.

http://i59.photobucket.com/albums/g3...B/666ec790.jpg

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http://gigglehd.com/zbxe/files/attac...70_vrm1s_1.jpg
Interesting, it seems like the white and R23 chips are not in contact with the heatsink.

Phil

Quote:

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Originally Posted by Philwong

http://gigglehd.com/zbxe/files/attac...70_vrm1s_1.jpg
Interesting, it seems like the white and R23 chips are not in contact with the heatsink.

Phil

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These are inductors, rated for maximum operating temps of 125c. Measured temperature at full load in passive cooling mode of the CPL2-4 multi-phase power inductor was comprised between 72 and 75C, and R23's in the low 50's.

Quote:

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Originally Posted by gabe

These are inductors, rated for maximum operating temps of 125c. Measured temperature at full load in passive cooling mode of the CPL2-4 multi-phase power inductor was comprised between 72 and 75C, and R23's in the low 50's.

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Meaning the CPL2-4 and R23 do not require extra cooling?

Phil

Quote:

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Originally Posted by Philwong

Meaning the CPL2-4 and R23 do not require extra cooling?

Phil

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Correct. By the way, I should have clarified that I measured these temps while running this board at 1.35v !!!

Also, here is a temp update for this 5850 at 1000/1200 @1.35v


http://www.swiftnets.com/assets/imag...D5850-HS-5.jpg

Regarding VRM temps, what we see here is just fine in active cooling (HD fan blowing in the direction of the heatsink for example, or side panel fan), in fact we even have room to spare if needed; but it wouldn't work in a totally passive cooling mode under a benchmark such as Furmark like in the example I was showing in the above post. So we just witnessed the upper over-volt limit of this thermal solution in PASSIVE mode (no fan), under Furmark: probably between 1.25v and 1.3v.

Incidentally, I double-checked the VRM temps under the Unigine Heavens benchmark, and they were all in the 50's, as opposed to Furmarks' 70's.

Now, with reference to the above, I installed the Komodo HD5800 to this card, AND ALSO removed the VRM thermal pads. low and behold, we are getting very good temps at 1.35v as shown below:

http://www.swiftnets.com/assets/imag...O-HD5850-1.jpg

But since I am on a roll testing, I decided to tune-down the card to a more reasonable voltage and to drop the OC to 950. Incidentally, these are the same settings than those found in the recent comparative published by the German site PCgameshardware here: http://extreme.pcgameshardware.de/wa...d-5870-oc.html

Assuming that this number is an average, they found 69.2C at the VRM temps with their stock Komodo, as shown below:

http://extreme.pcgameshardware.de/at...70-oc-vddc.jpg

And this is what I am finding, with the thermal pads removed:

http://www.swiftnets.com/assets/imag...O-HD5850-2.jpg

This is an average of 49.6C to be compared to 69.2C. I know that the cards are different, the cooling loops are different, but what's important here is the order of magnitude of difference. 20C! this is very indicative of what removing the thermal pads and going grease instead will yield as an improvement.

These results were also confirmed during extensive testing we recently did on the Epsilon HD5900.

Conclusions: pads are out, grease is in, welcome to the new king of VRM TIM!

Hi, sorry for my bad english I'm french :)

I haved buy a HD5850-HS with a MCW60 and my temperatures are bad :(
The GPU temp 1 is good, it don't go over 55° (I don't search extremely good temperature, just silent :) ) on furmark
But the GPU temp 2 is more annoying, it go over 85° in less than 10 second
The same for the GPU temp 3 just the temperatures go to 70°

The VRMs go over 90° if I let furmark for a long time.

Thank you in advance :)

@Moguy

Spec, Rad, pump, Tubing, room temp, ?

I think your using 3x 5850HS + 3x MCW60 ( so your running 3Fire )

Went from DTek GFX 2 with ram sinks to MCW60 with "unisink". With active airflow. VRMs went from 70s to high 40's in Furmark. This is at 1000Mhz Core, 1300mhz ram 1.187v flashed with Asus bios and using MSI Afterburner for voltage. Core still loads up to about 37c, idle 25c. Gabe - thanks for bringing this product to the market!! I'd rather use my core GPU blocks and pickup a $28 unisink every generation!

http://3dxtreme.net/other/HD5870%20u...280x768%5d.JPG

http://3dxtreme.net/other/HD5870%20u...280x768%5d.JPG

http://3dxtreme.net/other/HD5870%20u...1600x1200].JPG

@boulard83

I use juste one HD5850, my core i5 is watercooled but it run at idle when i launch furmark, I have a 240 rad and a 120 rad.
My pump is a DDC 10 W and my room temp is 25°, the HD5850 isn't overclock and the tubing is in 10/13 :)
EDIT : My HD5850 doesn't benefit of a direct airflow, my case doesn't have a good airflow (just 2 kaze jyuni at 500RPM for the 240 rad in front, a 120 rad in push pull of kase jyuni behind the case and a noctua NF-P12 at the top which is controlled by speedfan to run when the processor is too hot :)

Thank you for interesting to my problem ;)

so ive been trying to find a solution to getting these dang thermal pads off the vrms for better temps as stated by the new instruction manual but i cannot for the life of me get a solution to get the sticky substance off, ive tried acetone and brake cleaner, neither have worked to well. What have you guys used?

Quote:

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Originally Posted by Moguy

@boulard83

I use juste one HD5850, my core i5 is watercooled but it run at idle when i launch furmark, I have a 240 rad and a 120 rad.
My pump is a DDC 10 W and my room temp is 25°, the HD5850 isn't overclock and the tubing is in 10/13 :)
EDIT : My HD5850 doesn't benefit of a direct airflow, my case doesn't have a good airflow (just 2 kaze jyuni at 500RPM for the 240 rad in front, a 120 rad in push pull of kase jyuni behind the case and a noctua NF-P12 at the top which is controlled by speedfan to run when the processor is too hot :)

Thank you for interesting to my problem ;)

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I think you need better fan/speed for better temp. 500rpm is too slow for a radiator. The minimum to reach correct dissipation VS noise is ~1000rpm. This can vary from a fan model to another but its a good base line.

Slipstreams are not very good on rads, Vapor proved this in his testing.

I had split stream on my TFC360. Switching to Gentle typhoon gave my 1°c on water temp for the same fan speed. Split arnt BAD but there are better fans for rads. Maybe splits are bad with very high FPI rad.

@Moguy
EN : To reach nice VRM's temp you will need to actively cool the vrm. Add a 120mm fan that blow to the heatsink.
FR : Pour avoir de belle température sur tes VRMS tu aurras besoin de les refroidire activement. Ajoute une 120mm qui pousse directement sur le refroidisseur.

Quote:

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Originally Posted by Waterlogged

Slipstreams are not very good on rads, Vapor proved this in his testing.

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Thought twas Martin who tested them? Ahh well, you're right in the end, slipstreams aren't great for rads at all.

If I remember correctly, they had a tendency to lose CFM over time (fast), and started making funny noises :down:.

Its not a problem of a too hot water, when the system is idle, the water is cold and the GPU temp 2 go over 80°C in just 10 second, so the water haven't done one loop in the circuit.

Quote:

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Originally Posted by Moguy

Its not a problem of a too hot water, when the system is idle, the water is cold and the GPU temp 2 go over 80°C in just 10 second, so the water haven't done one loop in the circuit.

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We need a pic (preferably a good one) of your loop.

Quote:

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Originally Posted by Alexandr0s

Thought twas Martin who tested them? Ahh well, you're right in the end, slipstreams aren't great for rads at all.

If I remember correctly, they had a tendency to lose CFM over time (fast), and started making funny noises :down:.

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http://www.xtremesystems.org/forums/...d.php?t=193126

Quote:

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Originally Posted by Waterlogged

http://www.xtremesystems.org/forums/...d.php?t=193126

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:up: Fair nuff', you got me :p:.

This is the picture :
http://img51.imageshack.us/img51/5544/watercooling.jpg


I have stick some memory radiator on the HD5850 vrm for a little dissipate heat.

As i told. speed up your fan 2x120mm on the front to at least 1000rpm.

You tried to reseat your block ? and what kind of paste are your using on the GPU ?

For the VRM you need to add a fan that blow to the heatsink.

I get an antec tricool set to high speed on the vrm and I set to 12V my kase jyuni (they run at 800rpm at 12V), my thermometer measure 33°C on the HD5850-HS, but the vrm where to 100°C (in OCCT)
The GPU temp 2 was stabilized to 80°C on furmark and 90°C on OCCT

For the vrm, I think that the contact is poor.
But for the GPU temp 2, I don't know.
I used the arctic ceramique that is with the waterblock.

Moguy, Your problem is 3 fold.

1. Weak fans.

2. What air you have going through the rads is pretty much all warm air.

3. The air that is getting through the 240 rad is getting even warmer and blowing directly on your video card making the air cooled heat sinks even warmer.

You can start to fix the problem with better static pressure fans for the rads and getting fresh air through the entire 240.

100c is damn high even for kinda poor ventilation. I think you need to reseat everything FIRST and improve your airflow. (better fans)

Its not a probleme of airflow, a antec tricool set to high speed and a open case is suffisant for cooling the vrm.
My prob measure 33°C on the radiator, so I think the contact is poor like gabe say before.
I don't know where is the GPU temp 2 (name of a measure on GPU-Z), if this is a part of the GPU, I think the waterblock is not good mounted.
If this is a part of the pcb that is cooled by the HD5850-HS, I think this is like the vrm and the contact is poor.

Quote:

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Originally Posted by Boulard83

100c is damn high even for kinda poor ventilation. I think you need to reseat everything FIRST and improve your airflow. (better fans)

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:stick:

I remove the heat sink, and the thermal pad don't do a good contact with two memory chip :
http://img405.imageshack.us/img405/3...ercooling2.jpg

I apply thermal paste on the vrm and on the chip which don't do a good contact.

Now the temperatures are realy better :

The vrm don't go over 80°C on OCCT without any airflow ( vs 100°C with antec tricool set to high) but the gpu temp 2 continue to go to 80°C.
I hoped that the GPU temp 2 where the ram chip who don't do a good contact but apparently not :(

You correctly applyed paste on the GPU block too ?

Yes I applied the thermal past on to totality of the aera of the GPU.
I think the GPU temp 2 is a another component of the graphic card.
And the GPU temp 3 is also hot but just to 70°C so I don't know wath are this component :confused:

Heatsink looks great, just what i need for vrm cooling.
But i cant find any resellers in EU that have it in stock :(
Any suggestions?
Thanks.

Quote:

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Originally Posted by bratka

Heatsink looks great, just what i need for vrm cooling.
But i cant find any resellers in EU that have it in stock :(
Any suggestions?
Thanks.

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http://www.sidewindercomputers.com/swhdhecotomc1.html

they ship international too...