Question 1

Is the H75 a closed pump system, or should I buy some coolant along with this?
Thanks!

Accepted Answer

The H75 along with all the other Corsair Hydro series Liquid coolers is a closed loop system, which never requires refilling for the lifetime of the unit. I own the H60, H90 as well as the H75 and couldn't be more pleased with their cooling effectiveness as well as their longevity. I personally highly recommend the H75.

Question 2

The H105 (which has a nearly identical heatsink) comes with three interchangeable colored rings, like a lot of other Corsair products. Does this have the same rings included? Newegg and Corsair's site say specifically that the H105 includes them, but there is zero mention of it for the H75. If anyone who owns this knows, please let me know!

Accepted Answer

Sorry for the late response.  but no the H75 does not come with replacement color rings.  It's just the silver ring as soon in the images.  I guess if you were concerned with the look it might be better to get the H105, but in my case the double sized radiator won't fit.  I can tell you though, don't let the size fool you, this thing does a great job keeping the CPU cool no matter how much heat I throw at it.  Plus it's quieter than any of the other stock case fans I have.  I had to actually put my hand behind the fans to make sure they were moving air, its so quiet.

Question 3

does it come with thermal paste?

Accepted Answer

Yes, it comes with a nice thin coat of high quality performance paste preapplied. It's unlikely you can do better without going to extremes.

I am using it on a 4770k with temps in the 30's C idle and about 60 C with all cores maxed out. I don't over clock beyond the Gigabyte standard performance setting running all four cores at 3.8 GHz. The stock fans are very quiet, even at full load. I need to listen close to the case to hear if it is on. I also noticed that unlike the air coolers, the CPU temps drop very quickly when the CPU load is reduced after prolonged use with all cores maxed out.

I am very pleased with this cooler and recommend it highly.

Question 4

does the corsair logo light up on the pump when pumping coolant?

Accepted Answer

I purchased this CPU cooler and it works great, easy to install and dropped my temps by 7*c but like the question you asked the light does not light up that I wish it did because that would let me know that the pump is working.

Question 5

Can you change the color of the tubes?

Accepted Answer

I'm sorry I cant say for sure I believe that if you can get tubing in the same size to fit the barbed fittings and fasteners of the size or type I don't see why not.  Measure the amount of coolant that comes out when you do it if your going to take the time and trouble get clear tubes and use a florescent die in your coolant looks a lot more nicer than colored tubes

Question 6

Does this include the rings to change the color on the pump?

Accepted Answer

mine came with no color optional rings.

Question 7

I have a Gigabyte 990-fxa-ud3 AM3+ mobo, and running an AMD 8350fx AM3+ cpu.  Is this H75 cooler compatible with my system?  It says it works with AM3, but doesn't mention AM3+.  Thanks!

Accepted Answer

As far as I know AM3 and AM3+ use the same mounts. Everything I've read seems to confirm that too.

Question 8

Will it cool a 8700K processor?

Accepted Answer

Yes I will, going to put it in an old case from my old build, Cosmos 100 (cooler master).  Right now running a i7 920 with a Nivida gtx 1070 card. Going to use the 1070 with the 8700K hopefully this cooler will do the job. Not planning on overclocking before I can see what the temps are.

Question 9

is this compatible with LGA 1151 sockets?

Accepted Answer

Yes it is. The mounting pattern for Socket 1150 and 1151 are identical.  So you'll be able to mount this up no problem on that socket.

Question 10

My Dell XPS 8700 (i7-4790) has the OEM CPU fan with four screws/studs sticking up from the motherboard.  Am I able to use those or do I have to pull the MB and attach a backing plate?

Accepted Answer

After Installing this, I'm back to answer my own question.  
- The existing DELL base plate DOES work with this unit. Corsair's base plate will NOT work with DELL XPS 8700(mid 2013).  Why, because the DELL base plate includes heavy duty threaded holes for the 115X Corsair standoffs and secures the CPU holder. It cannot be removed unless you want your CPU falling out.  I placed one small washer between the MB and the standoffs to equal the height of Corsairs base plate above the MB (Corsair's base plate would have been loose had I been able to use it).
Note: The fan housings will require grooming (trimming) to fit within the case. It took me a few hours, but the end results made it worth the effort.

Questions & Answers