Some boards have 2 fans for CPU - especially boards designed for overclocking. The face that you don't have any voltage/RPMs across the fan3 may not be a problem. The only way you are going to be sure to tell it is a power supply is generally to replace it. You could replace CPU, memory, or board one at a time, but those are generally more expensive than a PSU. I have had many times that the PSU was the issue when running a compute cluster years ago. In one case the PSW was not getting enough airflow due to the positional design of the chassis vs the fan location of a replacement CPU which had undergone a spec change, and therefore wouls reach thermal protection shutdown. In another, a thermal expansion in a PSU component when under load would cause a short, and the system would shutoff. In another case - dirty output due to a power limiting component that was failing cause all kinds of problems, eventually causing us to have to replace RAM, CPU, MB, and a RAID card because of "brown out" type situations. We were only to know what happened after the manufacturer did some testing on the RMAed PSU. When you have 850 servers all built assembled from components (academic environment where the Professor got more systems for his grant money by buying components and using undergrad/graduate research assistants to assemble them), some interesting things happen, may of them were power supply related. Good luck, but I think you may save more in time and effort to just replace it. I have a 400W ATX powersupply you can have if you want to come get it. I am not sure how much wattage you need, but if 400 will cut it - that one can be yours for the low low price of gas money. Mac Michael via PLUG-discuss wrote on 7/13/20 8:41 PM: > inxi tells me this about my fans: > > Fan Speeds (RPM): cpu: 0 fan-1: 3139 fan-3: 0 > > So my cpu fan isn't working. I thought my computer would CRASH/FREEZE > more often if the cpu fan wasn't working. What is: fan-1: 3139 fan-3: > 0 > > I'm not sure but I think my power supply fan is running slow. Is that a thing? > > On Mon, Jul 13, 2020 at 11:26 PM Michael wrote: >> hey.... I forgot to tell ya all that last night after I put the >> system under stress I got it to freeze. >> >> On Mon, Jul 13, 2020 at 9:29 PM Michael wrote: >>> when I'm just running memory test the temp is 46 >>> >>> On Mon, Jul 13, 2020 at 8:06 PM Michael wrote: >>>> that was it under stress. >>>> >>>> On Mon, Jul 13, 2020 at 4:55 PM Brian Cluff via PLUG-discuss >>>> wrote: >>>>> If that's your idle temperature, that is terrible. I'll bet if you run >>>>> stress while monitoring your temperature you'll see it shoot up even >>>>> higher than that. >>>>> >>>>> (I cook chicken sous vide at 60C) >>>>> >>>>> Brian Cluff >>>>> >>>>> On 7/13/20 10:05 AM, Michael via PLUG-discuss wrote: >>>>>> Do 80 is bad? Mine was at 89 when I first started it >>>>> --------------------------------------------------- >>>>> PLUG-discuss mailing list - PLUG-discuss@lists.phxlinux.org >>>>> To subscribe, unsubscribe, or to change your mail settings: >>>>> https://lists.phxlinux.org/mailman/listinfo/plug-discuss >>>> >>>> >>>> -- >>>> :-)~MIKE~(-: >>> >>> >>> -- >>> :-)~MIKE~(-: >> >> >> -- >> :-)~MIKE~(-: > > -- Donald "Mac" McCarthy Director, Field Operations Open Source Context +1.602.584.4445 mac@oscontext.com https://oscontext.com --------------------------------------------------- PLUG-discuss mailing list - PLUG-discuss@lists.phxlinux.org To subscribe, unsubscribe, or to change your mail settings: https://lists.phxlinux.org/mailman/listinfo/plug-discuss