My friends, I finally got everything!!
It is very easy to disconnect the ACX heatsink and put the GPU PWM adapter, I didn't had to remove the cooler. Here is a picture of it mounted:
This is how I mounted the fans and organized the cables in order to avoid anything in the way of the fans or the ACX heatsink:
The view after getting it mounted (it gets tricky to acommodate the cables, but not really hard)
I've been playing with this all day, and I have to say I'm glad I did this modifications. The new setup is AWESOME! I will try to keep the explanations of my tests simple, so:
Prolimatech USV12 fans noise:
- PWM Controlled
- SYSTEM IDLE: Very quiet! Run about 700RPM. At this speed, they push about the same air as the Silverstone fans.
- SYSTEM LOAD: They stay quiet, about 850-1100RPM, but if you make the effort you can hear them pushing air. The case is barely at one feet away from me, so if I put it more than six feet away I will have a hard time hearing it.
- NOT PWM Controlled
- They run at 1300RPM (max speed). They are noticeable, not because they are noisy, but more because they cause vibration due to all the air they push. I'm expecting some rubber mounts I bought for testing to see how the noise changes.
- The entire system stays a few degrees cooler (CPU, Motherboard, SSD, HDD).
Prolimatech USV12 fans temperatures:
- PWM Controlled
- SYSTEM IDLE: They keep the ACX card at a fantastic 28c-29c.
- SYSTEM LOAD: Testing with Unigine Heaven Basic, everything Ultra, 8x AA, the card stays most of the time at 63c. In some scenes it goes up to 65c-66c and quickly goes down to 63c, while in other cases it goes down to 61c. GPU utilization is 99%.
With AC 4: Black Flag, the card stays in the 53c-56c range with NVIDIA optimal settings in Geforce Experience. GPU utilization is between 50%-80%, most of the time between 60%-70%. In some scenes it goes up to 60c, while in other scenes it goes down to 51c.
Edit: It seems nvidia activated vsync without my consent. After I realized, GPU utilization is between 75%-98%. Temperatures between 58c-63c. Since it is not always 99% like Unigine, when I get the rubber mounts I will test at full RPM, maybe noise gets a lot better and temperatures go lower.
- NOT PWM Controlled
- At IDLE the card stays between 26c-27c. Not a good tradeoff for the increased noise.
- With Unigine Heaven the temperatures are the same, only increases noise. WIth AC 4: Black Flag, the temperatures always stay between 52c-55c, in some scenes it goes down to 49c-51c, in others up to a maximum of 57c.
With PWM system stays a little warmer, around 1c-3c on higher on every component than with blower card. Without PWM it stays the same as with the blower, but the disks stay cooler because the card does not heats higher than 63c.
The ACX card blows most of the air to the top, so it goes through the case opening. The rest of the hot air goes to the motherboard area through the opening near the PCIE riser card, making the case feel a little warm in that area touching it from outside. The USV12 fans take care of removing all the heat really fast. The PSU area stays as cool as with a blower card.
I'm planning to build a thermometer to test the temperatures inside the case while it's closed following a guide here on OCN, but I'm pretty confident air is flowing the right way. With the PP05-E, there should be even more space for air to flow.
I still expect the Arctic Silver 5 thermal paste, to really test the ITX30 and see it's potential. I expect as well the rubber mounts for testing; if they remove most of the noise, an extra cool case without noise impact is always good
I really recommend this fans, with PWM, and a ACX cooler or one similar. It performs flawlessly. If the rubber mounts make the fans as silent as PWM in high RPM's, they will be one of the golden choices for this case.
If I left something out or you wish that I test something specific let me know
Be sure to read my edit on ac4 bf temperatures Edited by Mariolillo - 4/20/14 at 12:23am