Took about 45 seconds for the representative to tell me it was a faulty pump.

The Pump instantly died without warning

Unfortunately the pump died only after 3 months

Just keep in mind, that the pump is noisy, and that you will most likely be spending more for better-quality static-pressure fans (I highly recommend switching out the stock Corsair fans for something of better quality).

The pump is silent

Installed this cooler on a new build and first thing I noticed was the pump making a funny noise.

worked great for roughly 6 months, then the pump died.

(After many hours of checking the unit, even changing the thermal paste, I noticed that the pump was not working.

it was fine, the pump has a hiss that drove

Hoses coming off pump are also insanely stiff and thick

Unit's pump just died

Delivered on May 15, 2017 and the pump stopped working on 10/19/2017.

I picked this up to replace a H100i v1 that stopped working - a clogged pump

But roughly half a year from purchase and installation, the pump died

I worked great for 8 months then the pump died.

I had ordered this despite the reviews telling me the pump is no good

The pump itself works fine

I had to pay over $30 shipping for Fedex in order to return THEIR FAULTY PUMP

Then all of a sudden the pump drops to 0 rpm, refuses to work, and my cpu overheats before the pc can even boot up

Ordered this about 9 months ago, already the pump has failed

when my computers goes into sleep the pump stops works when the computer is resumed.

Unfortunately the pump failed after about a year

Worked fine for exactly 1 year then the pump broke

The pump failed after 3 months

The pump will overrun and loudly click

Bought 6 months ago, was working fine until today where the pump just quit working and fried my cpu.

Product arrived DOA, the fans work but the pump is dead

From what I could determine, most likely the pump (or pumps) failed inside the system

However after very light usage the pump just died

The fans worked (needs extra washers for them though as the long screws hold them floating and one started to rattle) the pump made zero noise and had zero vibrations as well as no feeling of heat on it or the pipes with a hot CPU

But the pump on this AIO failed in under a month for me with mild use on a

sadly lots of ppl have dead pump after a short use of it i dont want you to do the same thing so dont buy

the tubes are strong and the fans are quiet but the pump makes an annoying clicking noise.

But 2 days ago the pump decided just not to work anymore

I enjoyed this pump for 9 months or so

Mine died after a little over two years of use with a 6700k, the fans were spinning but the pump must have stopped working

5 month of use and the pump is dead.

My pump failed after a few months use(March 2, 2017)

I contacted Corsair when my temps reached 87C and told them I suspected something in my unit had gone bad, perhaps the pump

It might be best for one person to focus on holding the pump flat (evenly touching the CPU) while another person secures the nuts

Worked for two months then the pump stopped working

The fans worked and ran loud as hell but the pump itself never even started

I got this in the mail and installed it and within a week the pump started grinding and gave out

The pump died after 3 months of use

This nifty utility allows you to monitor temperatures as well as pump and fan status

Having used both a high quality air cooler like the D15 and this, I wouldn't purchase the H100i v2 again on price/performance alone not to mention the Corsair Link software was bad, the pump failed, and it was loud

My first units pump failed after a little over a year of use

Just look at the one star reviews and you'll see that the majority of the reviews are from pump failures ranging from 0-6 months of use.

On December 26 the pump completely died

The pump failed after only 10 months

Worked fine for exactly 1 year then the pump broke

My mistake, it wasn't the pump making the noise, it was the power supply.

It did not take long to realize that the water cooler pump had failed

My pump failed after about 10 months of service

I worked great for 8 months then the pump died.

When i installed Corsair's iCue software and set the H100i v2 pump and fans to "Extreme" settings in iCue, I noticed the pump was extremely loud with the glass side panel off.

Here we are, 18 months later, it stops working (appears to be a dead pump)

Immediately shut off the computer and waited a litttle, when I rebooted it gave me a cpu fan error and went to bios to see the pump wasn't working

10 months later the pump failed and nearly fried my CPU as I wasn't home when it failed

connector).You must connect it to the header without any fan control(or with disabled fan control) or the pump will fail to work

I picked this up to replace a H100i v1 that stopped working - a clogged pump

I got one with a bad pump and after the CPU got to 99c with no load on

I felt this was the best choice do to its more noticeable redesign of the cooler pump, radiator, and sleeved tubing

However, the pump is still working perfectly fine other then that I cannot control the pump.

My cooler is doing a great job of keeping my temperatures down, but the pump is obscenely loud

My pump failed after seven months

Sure enough, the pump died

worked great for roughly 6 months, then the pump died.

However, after just 100 days or so, the pump has completely failed

Unfortunately, 355 days after purchasing, my pump failed

This is my first AIO cpu cooler, if the pump and other system components last, its well worth it.

The pump died on me after 6 months

Secondly, the pump by itself is rather loud

The pump is dead silent and is not moving at all or doing a little vibration on Quiet or Performance mode

but....... the pump died within 6 months.

The pump suddenly failed and my CPU tried to go into melt down.

Not going to risk my CPU over another failed pump.

AX860iThe Pump is dead silent, maybe I have received a perfect unit

Purchased and worked great for 3 months then the pump died.

After less than 6 months the pump in the AIO cooler failed causing the CPU to over heat has not worked since do not recommend but the NZXT kraken coolers are much better.

At 4x the cost, Corsair should be able to put a decent pump into their water cooler.

The reason I gave it another star is because there was no heat increase, just the pump rattle.

I have not experienced any leaks or malfunctions of any kind, and the pump and fans are really quiet

the pump failed and stopped working completely

Installed and have a defective pump that makes a loud squealing noise

I assumed the pump stopped working properly or left it heated up too long causing the coolent to be much less effective

After 6 months of use, the pump died

The pump failed and so I reached out to Corsair, they accepted a return

Fans would run and the pump would illuminate, but it would not cool

So I bought this liquid cooler pump to cool my Intel i7-8700K processor

Works great when it's new but then my pump died in 6 months :/

The pump was dead

Before you buy, google "h100iv2 loud pump" and listen for yourself

The pump died after just two months

the pump didn't work, had to send it back and bought a nzxt kraken

Very happy with this cooling pump

So in less than 10 months of usage, 2 of the 6 I ordered the pumps are dead.