rutger1973 Posted February 8, 2013 Share Posted February 8, 2013 Hi all, For almost a year now I have a home built system with a Corsair Carbide 400R case and the Corsair AX650 PSU. Motherboard is a ASRock Z68 Extreme4 Gen3 iZ68, SATA600 RAID. The system worked fine untill recently. Now a problem has arisen with the power up. It started when I noticed that a press on the power button had no effect. But I didn't give it much notice as the 2nd push powered up the system. But since then I started to notice that it took me an increasing amount of pushes on the power button to start up the system. It has now come to a point where pushing the power button has no effect any more. What sometimes does work to power up my system is flip the switch on the PSU from the on to the off position and then very quickly to the on position again. This action by it self causes the system to power up. Now this seems strange behaviour for a PSU on/off switch, both I am glad it does that since I wouldn't have any other way to power the system up at this point. Intially I thought the front panel power switch on the Carbide 400R was the problem, but I found that there is a powerswitch on the motherboard itself and that switch didn't power up the system either. To complete the picture: once the system is up and running keeping the power switch on the front panel or the power switch on the motherboard pressed does caus a forced shutdown of the system. Now, this is the way these switches should work, I'm merely mentioning this to indicate that both the front panel power switch and the motherboard power switch do function. The exclusion of the front panel power switch as the cause has led met to believe that something might be wrong with the PSU. I concidered the motherboard as well but since it functions properly once the system is powered up I exclude that as an option. Is this conclusion correct? Any thoughts as to determine for sure that the PSU is the problem? I did not try the paperclip method as there seems no point in that since I am able to power the system up using the "PSU switch method". Any help/thoughts/comments/suggestions would be highly appreciated! Thanks! Rutger The Netherlands Link to comment Share on other sites More sharing options...
peanutz94 Posted February 8, 2013 Share Posted February 8, 2013 To complete the picture: once the system is up and running keeping the power switch on the front panel or the power switch on the motherboard pressed does caus a forced shutdown of the system. Now, this is the way these switches should work, I'm merely mentioning this to indicate that both the front panel power switch and the motherboard power switch do function. Yes, this is normal or what is called a hard shut-down and not real good for your computer. It doesn't give it a chance to close programs and save data and WILL cause corruption. I did not try the paperclip method as there seems no point in that since I am able to power the system up using the "PSU switch method". Well there would be a point to it. If it starts EVERY time like it should with the paperclip method , but not when connected to the MB that would give some indication that your MB is having trouble somewhere. Possibly not sending enough of what is called a Power Good signal that tells the PSU to start. Or it could be the other way around. The PSU could possibly not sensing the load when it is called for. The only other thing to do is test it with another PSU just to be sure. Link to comment Share on other sites More sharing options...
rutger1973 Posted February 9, 2013 Author Share Posted February 9, 2013 Hi Peanutz, Yes, I guess you're right. There would be a point in trying. I'll do it today and post the results. Thanks for your quick reply! Regards, Rutger Link to comment Share on other sites More sharing options...
rutger1973 Posted February 9, 2013 Author Share Posted February 9, 2013 Hi everyone, I encountered a new problem. Was going to give the paperclip method a go but when I opened the PC was remembered that all wiring on the AX650 is black. No green wire to be found. In the motherboard manual there is no wiring scheme for the 24 pins ATX connector. How to know which is a "genuine" black wire (ground) and which one is the "green in most PSU's but not in mine"? Now I saw the Corsair film on YouTube explaining the paperclip method. On this films it seems that the green wire is the fourth one from the right on the side which has the clip on it (locking the ATX connector into place). I made a photo of my connector just to show you how it looks. The green arrow is indicating the one I suspect to be the green wire (:laughing: funny since it is without any doubt black, but you know what I mean). On the YouTube film it also seems that the third wire (so directly right of the "suspected green wire" on the photo) is a ground wire I can connect the "green" wire to. Now before I try this I would appreciate it if someone could confirm that I'm not making any mistakes if I were connecting these two specific wires and switch the PSU on. I wouldn't want te break the thing if it is not already broken. Then secondly. To put some load on the PSU it is suggested to attach a casefan to it. All my casefans are connected to the motherboard with a small three pin connector. How would I connect this to the connectors that came with the AX650? I made another photo showing the casefan connector (on the left) and the possible other connectors (either two on the right. The middle one is actually an extension of a connector similar to the one on the right, using a adapter). Are these 2 left connectors basically suitable to power the case fan? If so, how do I connect the 3-pin casefan to either one of the 4-pin connectors? Now these might seem like silly questions to an expert but I'm really afraid that I'll do something wrong and I'll end up in a smoke filled room with a ruined PSU (if it's not already broken) :biggrin:. So thanks again for any advice on this!! I appreciate any help! Regards, Rutger The Netherlands Link to comment Share on other sites More sharing options...
rutger1973 Posted February 9, 2013 Author Share Posted February 9, 2013 OK, after posting my last message it occured to me that there is a thing called Google :bigeyes:. "Wiring scheme 24 ATX" did the job and likewise I found the scheme for the molex connector and the case fan. So I was able to loop the correct wire ("green" one) from the 24-PIN ATX to a ground wire and I was able to connect the casefan to the proper 12V and ground of a peripheral cable. So I had the setup for the test. It looks indeed like my PSU is not working properly. When I switch the PSU on nothing happend with the casefan. When I turn the PSU off however it starts spinning for a very short while (not even one rotation). Sometimes it even does that when the PSU is already off for a couple of seconds. It then makes a single click noise and gives the casefan a short spin. Sometimes nothing happens at all. Sometimes the fan does start spinning when I switch the PSU on. So it behaves irregular. All in all, would the conclusion that my PSU is bad be justified based on these findings? Once again, thank you! Best regards, Rutger Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted February 12, 2013 Corsair Employees Share Posted February 12, 2013 Please use the link on the left and request an RMA and we can replace it. Link to comment Share on other sites More sharing options...
rutger1973 Posted February 14, 2013 Author Share Posted February 14, 2013 Thanks RamGuy! I requested an RMA and received answer with a casenumber #5611982 and the note that I would receive return instructions within 24 hr. But so far, no joy on that. Link to comment Share on other sites More sharing options...
Administrators Technobeard Posted February 14, 2013 Administrators Share Posted February 14, 2013 Thanks RamGuy! I requested an RMA and received answer with a casenumber #5611982 and the note that I would receive return instructions within 24 hr. But so far, no joy on that.It was sent automatically 3 days ago. I'll re-send it. Link to comment Share on other sites More sharing options...
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