Corsair XD3

[Perezz]

I have gone through 3 of the pumps now in the space of a year am I doing something wrong or are they just bad and I should just get a EK pump.

I originally had 1pump in my system and then had to rma that pump as it wasn't starting when my pc starts and I needed to open my side panel every time and tap or bang the pump for it to start up, I then got my new pump then decided to get another pump for redundancy incase this happened again but my pc has now had 2 pumps in it for the past month and hardly been used yet both pumps are not not starting when my pc starts.

My pumps are in 4pin mode in my commander pro iv tried them in my mobo with PWM and the same thing happens im starting to get annoyed with corsair pumps at this point as I did not go custom loop to get thermal throttling and did not spend £1000 on a hydroX loop to get worse performance and reliability.

 

Has anyone got an idea why this could be happening my PSU is a RM750x from corsair.

 

[emosun]

Have you taken any of the dead pumps apart and inspected for damage/problems

Have you tried just manually wiring the pump to the 12v rail to see if that fixes it?

[Somerandomtechyboi]

1 minute ago, emosun said:

Have you tried just manually wiring the pump to the 12v rail to see if that fixes it?

Aaaaaand you beat me to it

 

Though to manually wire the pump go look up the pinout and start jamming some wires

[Perezz]

7 hours ago, emosun said:

Have you taken any of the dead pumps apart and inspected for damage/problems

Have you tried just manually wiring the pump to the 12v rail to see if that fixes it?

I have taken them apart they look fine just find it strange as they went from work completely fine yesterday and now this they work when I drain the loop then put the same water back in but only for a couple months its weird.

 

Would it be because I use them at such a slow rpm they cant push water through my radiators so they cut out or something when idle i have them run at 1300/1400rpm and under gaming load around 2000rpm

[fonzz1e]

did ddc pcb burn up from overheatig?

 

afaik ddc usually have heatsinks for their pcb

[Perezz]

2 hours ago, fonzz1e said:

did ddc pcb burn up from overheatig?

 

afaik ddc usually have heatsinks for their pcb

I don't think so it also didn't smell of burnt PCB or burning in general either, the back pump in the back of the case I noticed a bubble from top of Res would go into the pump inlet if the pump span up to 5000rpm but I didn't see that as a issues as I only run the loop at a max rpm of 3000 and a max water temp of 55c in a hot ambient around 30c or a average water temp 40c at 20c ambient with fans at 1000rpm or lower a12x25.

 

Is there like a thermal paste on the mini heat sync as you mentioned cos maybe if it's hot I could try add paste or thermal pad but I can't see heat being a issue I feel like getting a new case and have a distribution pump combo instead of these pumps as iv been so unlucky with them and it's my first water cooled pc with some tosty parts 2080 ti FE OC 320w and i9 9900KS no power limit 250w so 570watt of heat to deal with.

[HM-2]

3 dead DDC pumps...that strongly suggests to me the issue is elsewhere in the system. As others have said, they do NOT like being run hot for prolonged periods of time. 

 

You wouldn't smell burned PCB in the conventional blown component sense from persistent overheating, much likelier that you'd have a solder joint or integrated component fail with no outward signs. 

 

What's airflow over the DDC pump like? Have you run it dry?

[Perezz]

8 hours ago, HM-2 said:

3 dead DDC pumps...that strongly suggests to me the issue is elsewhere in the system. As others have said, they do NOT like being run hot for prolonged periods of time. 

 

You wouldn't smell burned PCB in the conventional blown component sense from persistent overheating much likelier that you'd have a solder joint or integrated component fail with no outward signs. 

 

What's airflow over the DDC pump like? Have you run it dry?

Sorry late reply, No never run them dry, as for the air flow I use the cooler master sl600m 3x120mm top and bottom (a12x25), 1000rpm with water temp between 35c to 45c then if water hits 50c my fans spin up for 2000rpm to keep the temp below 50c as my pumps and tubing are rated for 60c. However one of the pump are at the front of the case behind the panel for ease of access but has no air flow or very limited but that part of the pc has no hot components in it so the heat would only be water temp.

[fonzz1e]

if yer curious what fail, can always disassemble the pump motor & check its pcb

 

https://www.techpowerup.com/review/corsair-hydro-x-icue-xh303i-rgb-pro/5.html

[Ravendarat]

On 4/8/2022 at 9:50 AM, Perezz said:

I have gone through 3 of the pumps now in the space of a year am I doing something wrong or are they just bad and I should just get a EK pump.

I originally had 1pump in my system and then had to rma that pump as it wasn't starting when my pc starts and I needed to open my side panel every time and tap or bang the pump for it to start up, I then got my new pump then decided to get another pump for redundancy incase this happened again but my pc has now had 2 pumps in it for the past month and hardly been used yet both pumps are not not starting when my pc starts.

My pumps are in 4pin mode in my commander pro iv tried them in my mobo with PWM and the same thing happens im starting to get annoyed with corsair pumps at this point as I did not go custom loop to get thermal throttling and did not spend £1000 on a hydroX loop to get worse performance and reliability.

 

Has anyone got an idea why this could be happening my PSU is a RM750x from corsair.

 

Hmm, super odd to me, I have two of these currently running in systems and no issues what so ever and im coming up on a year plus of "always on" operation. I wonder whats happening with yours?