leetSmithy Posted June 3, 2014 Share Posted June 3, 2014 Please help. Even after 25 minutes of work Furmark (extreme) + Prime95 the PSU fan still not working. CPU was running at around 90-98% reaching temps of 98 Celcius. PSU RM750 1350 lot My system i5-3570k@4.4Ghz, ASUS P8Z77-V, 2x4Gb Samsung 2133 Ghz, Sapphire 7970 Ghz. ed. Vapor-x, seagate 1tb st1000dm003 + ssd OCZx vertex 4 A case temp - 38-40 'C and PSU feels extremely hot :( Does this sound like a faulty PSU? Link to comment Share on other sites More sharing options...
Corsair Employees jonnyguru Posted June 3, 2014 Corsair Employees Share Posted June 3, 2014 You have a 750W PSU and a single 7970 card. I doubt that fan will ever spin up. You could run two cards off that PSU easily.... with room to OC. If the PSU was overheating, it would have shut down by now. But it's not, so it won't. Link to comment Share on other sites More sharing options...
leetSmithy Posted June 3, 2014 Author Share Posted June 3, 2014 Thank you for response, but... 1) As CPU, the video card is overclocking too. With these settings my rig should be around 400 watts. Really close to 50% load. But the fan is still not spinning. http://images.anandtech.com/graphs/graph6994/55191.png 2) And how about temperature? I measured this from the top surface of the PSU. It was between 40-45 Link to comment Share on other sites More sharing options...
Corsair Employees jonnyguru Posted June 3, 2014 Corsair Employees Share Posted June 3, 2014 What's your room temperature? Link to comment Share on other sites More sharing options...
leetSmithy Posted June 3, 2014 Author Share Posted June 3, 2014 Usually around 25 °C Link to comment Share on other sites More sharing options...
Corsair Employees jonnyguru Posted June 3, 2014 Corsair Employees Share Posted June 3, 2014 Let me test it out this week. Right now, we have a 550W running at almost full bore (pulling about 520W from the wall while benchmarking) and the fan is spinning at it's max and even then the housing is 33°C measured at the center of the housing surface (opposite fan side). We'll try a 750W as well, knowing the fan won't spin, and see what temperature that hits after about half an hour. Link to comment Share on other sites More sharing options...
leetSmithy Posted June 3, 2014 Author Share Posted June 3, 2014 Thank you for your help! Btw, I got BSOD twice after installing new PSU. Before that I haven't seen BSOD two maybe three years. On my old PSU - Corsair TX-750M it's been okay too. Bug Check Code - 0x000000c5 0x00000019 p.s. And the fan doesn't spin at initial boot. Link to comment Share on other sites More sharing options...
Corsair Employees jonnyguru Posted June 3, 2014 Corsair Employees Share Posted June 3, 2014 Thank you for your help! Btw, I got BSOD twice after installing new PSU. Before that I haven't seen BSOD two maybe three years. On my old PSU - Corsair TX-750M it's been okay too. Bug Check Code - 0x000000c5 0x00000019 p.s. And the fan doesn't spin at initial boot. The fan in the RM doesn't spin up at initial boot. Typically, BSOD isn't related to PSU, but if you had the other PSU in there and didn't see a problem, I can understand why you would think it is the PSU. What case fans do you have in your PC? Link to comment Share on other sites More sharing options...
leetSmithy Posted June 3, 2014 Author Share Posted June 3, 2014 Only three case fans. 3 x Noctua NF-P12 PWM 120x120 mm (2 on the front panel, 1 on the rear panel) I've tested Prime95+Furmark (1920x1200 x8 MSAA) again, but all is still the same. Fan is not working, power supply is getting really hot. Lot code 1350 as i said before =( Link to comment Share on other sites More sharing options...
Corsair Employees jonnyguru Posted June 3, 2014 Corsair Employees Share Posted June 3, 2014 Lot code 1350 is good. The thread says a number of times that the problem affects lot code 1341 and below. Is the fan in the rear blowing air out of the case? And the two in the front... those are intake, right? Link to comment Share on other sites More sharing options...
leetSmithy Posted June 3, 2014 Author Share Posted June 3, 2014 That's correct. One front fan blowing on SSD, another one on the hard disk and video card Link to comment Share on other sites More sharing options...
Corsair Employees jonnyguru Posted June 4, 2014 Corsair Employees Share Posted June 4, 2014 Ok. I'll test it tomorrow or the next day, but I already know the housing on the RM can get pretty hot without the fan spinning and the PSU is perfectly fine. So even if I tell you the housing gets as hot at 60C, I'm not sure what that's going to accomplish. Any way you can turn the speed up on you exhaust fan to see if the BSODs go away? Link to comment Share on other sites More sharing options...
Memhorder Posted June 4, 2014 Share Posted June 4, 2014 My RM 750 fan doesn't turn on either and I have a AMD 9370, GTX 780, H100i. Even while stressing those components out. No problems. Link to comment Share on other sites More sharing options...
leetSmithy Posted June 4, 2014 Author Share Posted June 4, 2014 Any way you can turn the speed up on you exhaust fan to see if the BSODs go away? Forgive me for my hastiness . BSOD's were caused by bad Audigy 2 drivers. Seems like I fixed this problem. But I'm still nervous that something is going wrong with PSU. Under heavy load of Furmark and FTT's test Ptime95 PSU-fan isn't working. I didn't see that the fan did any moves at least once. Link to comment Share on other sites More sharing options...
leetSmithy Posted June 4, 2014 Author Share Posted June 4, 2014 Any ideas? Is my PSU is broken? Link to comment Share on other sites More sharing options...
Corsair Employees jonnyguru Posted June 4, 2014 Corsair Employees Share Posted June 4, 2014 No. Your PSU isn't broken. You're just not loading it enough and/or it's not hot enough in your PC. If the PSU was getting too hot, it would shut off. There's a protection inside the PSU for this. As far as I can see, you're not having any problems, so I wouldn't assume there's anything wrong. Link to comment Share on other sites More sharing options...
leetSmithy Posted June 4, 2014 Author Share Posted June 4, 2014 You represent that 3570K@4.4 + HD7970 Ghz Ed. (1200/6800) testing under Furmark and Prime95, does not give 380-400 watts (40% of 750W)? Most other tests suggests otherwise. :( http://www.legitreviews.com/images/reviews/2058/power-consumption.jpg http://www.hardocp.com/images/articles/13401556355JjpvVlbGv_8_1.gif But this fan does not even think to spin. I just want to make sure that it works. Link to comment Share on other sites More sharing options...
Corsair Employees jonnyguru Posted June 4, 2014 Corsair Employees Share Posted June 4, 2014 The PSU fan doesn't really spin up based on load. Read this: http://www.corsair.com/en-us/blog/2014/may/axi_fan-speeds Do you have your PSU mounted fan up or fan down? Link to comment Share on other sites More sharing options...
leetSmithy Posted June 4, 2014 Author Share Posted June 4, 2014 fan down PSU mounted on the top of the case Link to comment Share on other sites More sharing options...
Corsair Employees jonnyguru Posted June 4, 2014 Corsair Employees Share Posted June 4, 2014 If ALL you want to do is make sure the fan works... Take a hair dryer and blow hot air into the PSU. If you don't/can't do that, all I can say at this point is RMA it if you think you have a bad fan, but I'm telling you that IF the PSU was really getting "too hot", it would have shut down. Link to comment Share on other sites More sharing options...
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