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GTX470 w/ Antec Kuhler H2O 620.

post #1 of 36
Thread Starter 
So heres the deal, I was lapping my Heatsink on the GTX470, one of my heatpipes proved to be very shallow and there was a breach.

I have ordered The Kuhler H20 620 for this mod.

After much disappointment with the appearance on the side of my satisfaction with temperatures, I decided to amke some changes.

This is the 470 as I stripped her down to her skivvies.
338
338
338

After putting the Arctc VR003 kit on, things are already looking much better. thumb.gif
338

Give the GPU die a nice cleaning, because I'm just too leet like that, and run IHS-less.
338

Preparing for the Kuhler head, I had to take care of some emissions.
338

Having the Head then mounted, I took a picture.
338

Shortly after taking the picture, I realized, I didn't order a fan. so after about 1/2hr looking for something to fit, all i could find was this:
338


Old mod inside (Click to show)
Measured~: I used some imagery to measure the mounting of the block/pump to the gpu.
512

IHS Removed: I recognise that i will have to cut out some of the memory/vrm heatspreader for the block to sit flush directly on the GF100 Die.
338

After Receiving my Kuhler I proceeded directly to cutting out the part of the VRM/MEM heatspreader that's in the way of direct die contact.
I dont yet have an image of the finished spreader, its a little rougha nd embarrasing.

565

Temporarily, I used the ziptie method to fasten the Kuhler's Coldplate to the GF100 Die.
[Image coming with arrival of MX-4]

I wanted to keep the Original reference shroud, so I cut a hole in the side of the Shroud to let the wiring and tubing out.
338

Heres the difference in temperatures.

Before: Stock heatsink (Click to show)
280

After: After the mod (Click to show)
283

More After:
283
Edited by Xinoxide - 5/5/12 at 7:38am
post #2 of 36
So far so good, are you planing to use the zip tie method or the more professional custom brackets method?
btw, dude..did you remove the IHS or did it just come off? wth.gif
post #3 of 36
Thread Starter 
Quote:
Originally Posted by TheBirdman74 View Post

So far so good, are you planing to use the zip tie method or the more professional custom brackets method?
btw, dude..did you remove the IHS or did it just come off? wth.gif

I removed it, Shaving it down as well as the heatsink helped a lot. It even helped reguardless of the fact i put a hole in the heatpipe of the stock heatsink.

When i apply the closed loop It will be in contact directly with the die, and it will be bolted down.
post #4 of 36
Do you plan on removing the fan and everything? Because you might want to get a little better cooling for the VRAM and VRM too.

My absolute max I've ever see after my IHS mod is 62C...but I need to be careful because there's nothing different with the VRM and VRAM cooling. So I'm working on getting semi-accurate temps on the VRM and VRAM with a infrared thermometer... Max operating temp for the VRAM or VRM is??? I have no definitive answer on this question...no one seems to know...

Lookin good!
post #5 of 36
Thread Starter 
Quote:
Originally Posted by Cakewalk_S View Post

Do you plan on removing the fan and everything? Because you might want to get a little better cooling for the VRAM and VRM too.

My absolute max I've ever see after my IHS mod is 62C...but I need to be careful because there's nothing different with the VRM and VRAM cooling. So I'm working on getting semi-accurate temps on the VRM and VRAM with a infrared thermometer... Max operating temp for the VRAM or VRM is??? I have no definitive answer on this question...no one seems to know...

Lookin good!

Im not as worried about the VRM's as I am with my gpu.

I punctured a hole in the heatpipe of the stock heatsink, so progress just in cooling the gpu is the aim right now.

I'm going to keep the IHS off for the mod. so im going to need to cut some space for the block into the heatspreader as depicted by the filled in red lines around the GPU.

338
post #6 of 36
I had to do the same thing in order to keep the fan assembly. Cut to make room for the Antec 620 head mounted to the die. Was a pretty easy task.

Before

450

After

450
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post #7 of 36
hello, sorry dont think I quite understand your plans. are you planning to attach the cooler directly on the chip or attached to the existing cooler?

anyhoo if it was me i would go direct to the chip or to a plate including the memory.

Concerns, the coolers are built for cpus which tend to operate at a lower temps not sure if the cooler could cope.

Not the link i was looking for but may prove useful

http://www.corsair.com/blog/using-a-hydro-series-h70-on-a-nvidia-geforce-gtx480/
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post #8 of 36
Thread Starter 
Quote:
Originally Posted by Rage19420 View Post

I had to do the same thing in order to keep the fan assembly. Cut to make room for the Antec 620 head mounted to the die. Was a pretty easy task.

Before



After

450

I really like this better than my curved cut idea. It just didnt cross my mind. Things like this make me glad I made a thread. This will be the new method for allowing the kuhler to sit on the die.
Quote:
Originally Posted by naws45 View Post

hello, sorry dont think I quite understand your plans. are you planning to attach the cooler directly on the chip or attached to the existing cooler?

anyhoo if it was me i would go direct to the chip or to a plate including the memory.

Concerns, the coolers are built for cpus which tend to operate at a lower temps not sure if the cooler could cope.

Not the link i was looking for but may prove useful

http://www.corsair.com/blog/using-a-hydro-series-h70-on-a-nvidia-geforce-gtx480/

the image with the fins on was just a photoshop "measurement" to see how plausible this is. The heatsink is broken, it will be discarded.
post #9 of 36
Quote:
Originally Posted by Xinoxide View Post


I really like this better than my curved cut idea. It just didnt cross my mind. Things like this make me glad I made a thread. This will be the new method for allowing the kuhler to sit on the die.

It was much easier to mount the 620 head with the fan assembly removed. You will have a much better line of sight for positioning. Once I got them centered and mounted I plugged them in and benched to see the results. I had to wait to get some new thermal pads from FrozenCPU then mounted the fan assembly back on. With them being notched out I didnt have to remove the cooler heads at all. Just slide them on and fastened back on.

FYI I also lapped the cooler head. See worklog: http://www.overclock.net/t/1173936/gtx-480-sli-ihs-mod/0_50#

450
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post #10 of 36
Quote:
Originally Posted by naws45 View Post

hello, sorry dont think I quite understand your plans. are you planning to attach the cooler directly on the chip or attached to the existing cooler?

anyhoo if it was me i would go direct to the chip or to a plate including the memory.

Concerns, the coolers are built for cpus which tend to operate at a lower temps not sure if the cooler could cope.

Not the link i was looking for but may prove useful

http://www.corsair.com/blog/using-a-hydro-series-h70-on-a-nvidia-geforce-gtx480/


Actually these coolers work amazingly well. More people are opting for this mod (including OP) and have some seriously low temps as a result.

Heres mine: http://www.overclock.net/t/1140299/gtx-480-sli-antec-620s-mod/0_50#
My inspiration via Cravinmild http://www.overclock.net/t/1086286/complete-build-log-zotac-560ti-corsair-h70/0_50#
Extreme2: http://www.overclock.net/t/1178955/corsair-h100-mode-gtx580-directcu-ii/0_50#
angel88888: http://www.overclock.net/t/1186989/another-antec-h2o-mod-with-gtx-560-ti-hawk/0_50#
theturbofd: http://www.overclock.net/t/1167812/my-gtx-480-antec-mod-d/0_50#
rttnpig]: http://www.overclock.net/t/1153699/sli-480-with-antec/0_50#
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i7 2700k Gigabyte Z68MA-D2H-B3 Palit Gtx 480 w/Antec 620 Mod Crucial 16GB Kit DDR3  
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