Thought I'd share my recent experiences with two CS requests.
Got 4-pin PWM fan replacements for the 3-pin fans that shipped with our two H80i's and one H100i. Mounted two of them on the H100i to see how they are. Amazed at the difference in decibel level at all speeds. It's like a different machine now.
While waiting for the PWM fans to arrive, the H100i spontaneously exhibited high temps following waking from sleep. 70°C at no load. Output tube hot, input tube cool. Tilted the case in various orientations to purge a possible bubble, as the pump was reading about 150RPM too high. No definitive positive results. Underclocked the box, to get the temps down, so I could continue to minimally use the workstation by pulling assets off of it to another box. This dropped the idle temp to 40°C and load temp to 70°C.
Once that was under control, I initiated an Express RMA. Took a while for it to ship, but I wasn't really in a crunch, so just waited. Replacement unit arrived and got it installed. I tested one of the fans that shipped with the new H100i and, when blowing upward, I could faintly hear the bearing noise; but only when the running fan was placed very close to my ear. Any amount of blockage of the airflow, either on the input side or the output side would eliminate the faint ticking, as would any other orientation.
Rather than chance the fans that shipped with it, I transferred the two that I was testing and used them, as they are nice and quiet. Finished the installation, booted the box and the initial CPU core temps were 29°C. Slowly climbed to level off at 32°C by the time Windows had fully booted. All remained quiet at idle.
Running Prime95, it barely got to any level of noise at all. Core temps leveled off at 59°C. Cool, not to make a pun. I fired up CL, having previously installed 2.7.5339. Everything showed up, even the custom profile I had. No uninstall/reinstall. No deletion of profiles. It just worked. The water block and fans were not detected on the old cooler with the original as-shipped firmware and PWM fans. This cooler with the new firmware already in place allowed them all to appear right outta the gate.
One thing that may have made a difference is that I had moved the case fans from the Cooling Node to the motherboard headers and am controlling them through BIOS, to remove potential conflicts with the Corsair-specific components. Just let each do its own thing and spread the workload out. BTW, CL reported that the Cooling Node needed a firmware upgrade. I chose to not step on that potential land mine. Not broken; not going to fix it.
Ok, time to put the modest OC back in and see how it does. It's a critical workstation, so insane OCs are out of the question. A bit of a performance boost is fine, but the system needs to be stable. Because the temps are lower, the LED temp settings needed to be adjusted down by a few degrees, so that the low end shows blue, mid range green, and I adjusted the fan curves a bit lower, so they'd ramp up earlier. With a 4.4Ghz OC, idle core temps were 35°C. Under Prime95 load, core temps leveled off at 68°C and the box is still delightfully quiet, compared to the original H100i cooler and fans.
With these two RMAs, now completed and my original H100i now on the UPS truck back to Hayward, I am happy to thank the CS staff and especially "The Beards" for their assistance. The workstation is now better than it ever was and is a joy to work with. Good Goin'.
Got 4-pin PWM fan replacements for the 3-pin fans that shipped with our two H80i's and one H100i. Mounted two of them on the H100i to see how they are. Amazed at the difference in decibel level at all speeds. It's like a different machine now.
While waiting for the PWM fans to arrive, the H100i spontaneously exhibited high temps following waking from sleep. 70°C at no load. Output tube hot, input tube cool. Tilted the case in various orientations to purge a possible bubble, as the pump was reading about 150RPM too high. No definitive positive results. Underclocked the box, to get the temps down, so I could continue to minimally use the workstation by pulling assets off of it to another box. This dropped the idle temp to 40°C and load temp to 70°C.
Once that was under control, I initiated an Express RMA. Took a while for it to ship, but I wasn't really in a crunch, so just waited. Replacement unit arrived and got it installed. I tested one of the fans that shipped with the new H100i and, when blowing upward, I could faintly hear the bearing noise; but only when the running fan was placed very close to my ear. Any amount of blockage of the airflow, either on the input side or the output side would eliminate the faint ticking, as would any other orientation.
Rather than chance the fans that shipped with it, I transferred the two that I was testing and used them, as they are nice and quiet. Finished the installation, booted the box and the initial CPU core temps were 29°C. Slowly climbed to level off at 32°C by the time Windows had fully booted. All remained quiet at idle.
Running Prime95, it barely got to any level of noise at all. Core temps leveled off at 59°C. Cool, not to make a pun. I fired up CL, having previously installed 2.7.5339. Everything showed up, even the custom profile I had. No uninstall/reinstall. No deletion of profiles. It just worked. The water block and fans were not detected on the old cooler with the original as-shipped firmware and PWM fans. This cooler with the new firmware already in place allowed them all to appear right outta the gate.
One thing that may have made a difference is that I had moved the case fans from the Cooling Node to the motherboard headers and am controlling them through BIOS, to remove potential conflicts with the Corsair-specific components. Just let each do its own thing and spread the workload out. BTW, CL reported that the Cooling Node needed a firmware upgrade. I chose to not step on that potential land mine. Not broken; not going to fix it.
Ok, time to put the modest OC back in and see how it does. It's a critical workstation, so insane OCs are out of the question. A bit of a performance boost is fine, but the system needs to be stable. Because the temps are lower, the LED temp settings needed to be adjusted down by a few degrees, so that the low end shows blue, mid range green, and I adjusted the fan curves a bit lower, so they'd ramp up earlier. With a 4.4Ghz OC, idle core temps were 35°C. Under Prime95 load, core temps leveled off at 68°C and the box is still delightfully quiet, compared to the original H100i cooler and fans.
With these two RMAs, now completed and my original H100i now on the UPS truck back to Hayward, I am happy to thank the CS staff and especially "The Beards" for their assistance. The workstation is now better than it ever was and is a joy to work with. Good Goin'.
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