Hello,
I apologize in advance for the novel, but I have an unusual problem and done lots of troubleshooting, so this is pretty thorough...
I have a Dell Optiplex 7010 that has been considerably upgraded in it's life and has now been relegated to dedicated duty as part of my DJ booth system. I use it strictly to run Rane Serato software, music editing software, playing music from youtube and basic web browsing from time to time. The system is running Win 10 x64 with an i5-3550 cpu, 12gb of matching Corsair RAM, an SSD for boot, HDD for storage and a DVD drive. At the moment, it has a 430w Thermaltake PSU in it, but I've had this issue with both the 430w and the original 250w stock PSU. I also have numerous GPUs on hand that are good fits for this system, including the onboard graphics, a GT 1030 2GB, and old Radeon Dell 2GB card an a Quadro FX 1800. I can make any of these cards work just fine in the system. But there's a catch... keep reading.
My problem is that "restart" shutdown works fine... Win 10 goes down, then comes back up again... But when I try to shut down the system completely via Sleep, Hibernate or full Shut Down commands, then windows winds itself down to it's power shutoff point, and the PC goes into a continuous loop of attempts where the it tries to post, over and over again. The case and PSU fans spin for about one second, then they stop for about three seconds, and then they spin again for a second, and so on. During those moments when the PSU is "on" but the vent fan is not spinning, I can hear a slight buzzing sound from the PSU that goes away as soon as the fans start spinning. If I long-press the power button on the PC itself, I can make the boot-up attempts stop and the PC seems to shut down completely, but I can still hear the barely-audible buzz from the PSU, until I switch off the PSU toggle switch or unplug power cable. Then the sound goes away as well. But, when I try to turn the machine back on again after I switch off the PSU, I get more of the same the moment I turn on the PSU again... continuous post-attempts with zero signal going to the monitor, ever.
Keep in mind that this behavior is the same, regardless of whether I'm using integrated graphics or any of the other video cards I mentioned before.
I tried CMOS battery removal/reset which gave me "configuration problem" message on screen and the choice to F1 (continue) F2 (setup) or F5 (diagnostics). When I select F5 and run all of the built-in diagnostic tests, the computer's components pass all with flying colors.
I have also unplugged all of my peripherals, removed GPU and tried just getting the MB to POST, and the MB does the same thing with nothing but RAM, CPU and cooling fans plugged into it.
THE ONLY WAY I CAN SEEM TO GET THE PC TO BOOT UP PROPERLY WORK AGAIN.... is if I switch GPU while the PSU is fully switched off or unplugged. So, if I had previously been running internal graphics and then install any of the PCIe cards I have on-hand , the machine goes through full boot up as soon as I turn on the power supply switch. (IMPORTANT: THIS HAPPENS WITHOUT ME PUSHING THE POWER BUTTON) and then the PC works like a champ until I try to shut it off. Or, if I had been using a PCIe card and then power the machine down completely and remove the card to use integrated GPU, the computer posts, boots and runs just fine again. (AGAIN, TURNS ON AS SOON AS PSU GETS POWER TO IT, WITHOUT ME HITTING THE POWER BUTTON TO TURN IT ON)
So, this problem happened with two different power supplies (although I don't recall hearing any sound from the less powerful OEM Dell when it was in there) so it seems to me like this could be a motherboard short, maybe somewhere around the on-switch circuit, or maybe a PCIe issue. I'd be very grateful for any insight anyone can provide...
I apologize in advance for the novel, but I have an unusual problem and done lots of troubleshooting, so this is pretty thorough...
I have a Dell Optiplex 7010 that has been considerably upgraded in it's life and has now been relegated to dedicated duty as part of my DJ booth system. I use it strictly to run Rane Serato software, music editing software, playing music from youtube and basic web browsing from time to time. The system is running Win 10 x64 with an i5-3550 cpu, 12gb of matching Corsair RAM, an SSD for boot, HDD for storage and a DVD drive. At the moment, it has a 430w Thermaltake PSU in it, but I've had this issue with both the 430w and the original 250w stock PSU. I also have numerous GPUs on hand that are good fits for this system, including the onboard graphics, a GT 1030 2GB, and old Radeon Dell 2GB card an a Quadro FX 1800. I can make any of these cards work just fine in the system. But there's a catch... keep reading.
My problem is that "restart" shutdown works fine... Win 10 goes down, then comes back up again... But when I try to shut down the system completely via Sleep, Hibernate or full Shut Down commands, then windows winds itself down to it's power shutoff point, and the PC goes into a continuous loop of attempts where the it tries to post, over and over again. The case and PSU fans spin for about one second, then they stop for about three seconds, and then they spin again for a second, and so on. During those moments when the PSU is "on" but the vent fan is not spinning, I can hear a slight buzzing sound from the PSU that goes away as soon as the fans start spinning. If I long-press the power button on the PC itself, I can make the boot-up attempts stop and the PC seems to shut down completely, but I can still hear the barely-audible buzz from the PSU, until I switch off the PSU toggle switch or unplug power cable. Then the sound goes away as well. But, when I try to turn the machine back on again after I switch off the PSU, I get more of the same the moment I turn on the PSU again... continuous post-attempts with zero signal going to the monitor, ever.
Keep in mind that this behavior is the same, regardless of whether I'm using integrated graphics or any of the other video cards I mentioned before.
I tried CMOS battery removal/reset which gave me "configuration problem" message on screen and the choice to F1 (continue) F2 (setup) or F5 (diagnostics). When I select F5 and run all of the built-in diagnostic tests, the computer's components pass all with flying colors.
I have also unplugged all of my peripherals, removed GPU and tried just getting the MB to POST, and the MB does the same thing with nothing but RAM, CPU and cooling fans plugged into it.
THE ONLY WAY I CAN SEEM TO GET THE PC TO BOOT UP PROPERLY WORK AGAIN.... is if I switch GPU while the PSU is fully switched off or unplugged. So, if I had previously been running internal graphics and then install any of the PCIe cards I have on-hand , the machine goes through full boot up as soon as I turn on the power supply switch. (IMPORTANT: THIS HAPPENS WITHOUT ME PUSHING THE POWER BUTTON) and then the PC works like a champ until I try to shut it off. Or, if I had been using a PCIe card and then power the machine down completely and remove the card to use integrated GPU, the computer posts, boots and runs just fine again. (AGAIN, TURNS ON AS SOON AS PSU GETS POWER TO IT, WITHOUT ME HITTING THE POWER BUTTON TO TURN IT ON)
So, this problem happened with two different power supplies (although I don't recall hearing any sound from the less powerful OEM Dell when it was in there) so it seems to me like this could be a motherboard short, maybe somewhere around the on-switch circuit, or maybe a PCIe issue. I'd be very grateful for any insight anyone can provide...
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