cyrus360 Posted December 3, 2013 Share Posted December 3, 2013 I had an issue this morning where my computer was cycling on and off repeatedly. I searched and searched and ended up with that my H60 seems to have busted. I posted here http://forum.corsair.com/v3/showthread.php?t=124219 and got a RMA going. I also posted on a computer forum and some of the members think it's the PSU causing the problem. Here is a pic I took while I had booted into the desktop and before the system would shut down once the CPU hit 97c. http://i.imgur.com/M1nZe2c.jpg The voltages were all going wonky since the CPU was heating up rapidly and once it hit 97c the system would shut off. They are thinking that the +12v and +5v rails are way out of spec. My guess was since the CPU was overheating the mobo regulated and lowered the voltage being delivered. So they were thinking that's why the H60's pump wouldn't run is because the PSU was failing. Then other people chimed in that they don't think the system would even boot up with how low the rails were reading. I tended to agree since it was able to power my 780GTX so I couldn't see why it wouldn't power the small pump. I am no expert in these matters so I want to make sure I explore every possibility to make sure I get it all fixed up. I should have the replacement H60 later in the week. What do you think based on the pic and the situation? Should I be concerned about the PSU as well? Link to comment Share on other sites More sharing options...
JKeifer Posted December 3, 2013 Share Posted December 3, 2013 The power supply or the integrity of the connections to the motherboard is highly suspect. I am not sure of the mechanism by which the CPU is throttled or shut down when it gets hot but I think it is an internal clocking mechanism and doesn't have anything to do with trying to regulate the +12.0vdc or the +5.0vdc voltages. Replacing the cooler won't fix the problem you are seeing. If you have access to another PS, I'd try it for sure. Link to comment Share on other sites More sharing options...
peanutz94 Posted December 3, 2013 Share Posted December 3, 2013 cyruss, the 5v rail is reading pretty high , and the 12v REALLY low...at least as far as software is concerned, but software can not be trusted to read voltages accurately. The only true way to read the voltages is with a multi-meter. For the time being i would unplug all your cables from the MB and re-plug them in and see if that reading changes. My guess was since the CPU was overheating the mobo regulated and lowered the voltage being delivered. So they were thinking that's why the H60's pump wouldn't run is because the PSU was failing. As jkeifer pointed out your CPU would throttle it's clock speed but even if it did drop voltages it would be for your CPU only. The rest of your system would still receive the power it requires. Even given a low 12v the cooler would still function but the pump would not run at it's full RPM's. Then other people chimed in that they don't think the system would even boot up with how low the rails were reading. This is why you can not trust software to read your voltages. At 8 v your PC would not even attempt to power up. Anything below about 11.4v you would start seeing stability issues. So if your system is otherwise stable I wouldn't worry about your PSU. I am no expert in these matters so I want to make sure I explore every possibility to make sure I get it all fixed up. I should have the replacement H60 later in the week. What do you think based on the pic and the situation? Should I be concerned about the PSU as well? I think your trying to analyze the death of a cooler too much. There doesn't have to be a reason for them to fail , they just do. I would wait for your replacement, instal it and see how your system reacts and go from there if you have issues. Link to comment Share on other sites More sharing options...
cyrus360 Posted December 3, 2013 Author Share Posted December 3, 2013 Yeah Peanutz, that's what I am going to do. Replace the cooler, then see what happens. My system had been perfectly stable even with it overclocked to 4.3GHz prior to the cooler failing. The cooler should be here tomorrow so we shall see how it goes. I checked all the cables and connections to the mobo and nothing was wrong. No burnt/bent pins, no loose connections. So hopefully it's just replacing the cooler and I'll be back up and running fine once it's replaced. Link to comment Share on other sites More sharing options...
cyrus360 Posted December 6, 2013 Author Share Posted December 6, 2013 UPDATE--- OK, got the cooler, got it installed and everything is back to normal. Temps are even better than before. Got my cpu OC'd up to 4.2GHz and everything is rock solid and stable. I will be keeping an eye on the temps just to make sure everything settles in OK the next few weeks. http://i.imgur.com/HcHR8YNl.jpg Link to comment Share on other sites More sharing options...
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