psu fan spins then stops
Fan issue persisted. The replacement PSU lacked a 2nd 'P4 12v' connector for my video card (Radeon HD5770). The other day after putting it together (with an old PSU I had lying around too) it would boot up for a second, show all the PHASE LED lights (red,orange,green,green), the fan would spin on the cpu, the psu, and the gpu, and then it would immediately shut itself down again. Same fan issue persisted. I've got an Acer Aspire 5332 laptop in for repair. Same behavior. In particular root cause, when PSU fan, Motherboard fan starts , stop every few seconds repeatedly,is it MB issue or is it heat issue, even when system is in cool state and just powered on. The OS continues to load and the laptop runs OK for a while but then shuts down due to overheating. The fans actually go crazy, spinning at full force. Remove CPU Power. The paper clip test is a crude but effective way to confirm if your PSU needs to be replaced. Same result.. the CPU fan would twitch, the power LED would come on.. and then shut off.. turn back on.. rinse, and repeat. I dusted out the original PSU and re-installed it. If you know where they are, short-out the two pins with the jumper OTHERWISE just leave the computer unplugged for at least 10 minutes or longer. Press question mark to learn the rest of the keyboard shortcuts etc. etc. No change. The lights would come on, the fans would spin (case fan, cpu fan, power supply fan, video card fan). Powered on confirmed that the PSU fan was working ok. Flip the switch at the rear of the PSU, and listen for the internal fan. also tried putting a fan on the … Press J to jump to the feed. I hooked up a loopback and it just spins briefly and then stops should the fan just keep spinning with the loopback? Then after at most 3 seconds, the power supply shuts down (both fans stop). I took out the power supply and tried it on another motherboard (without any other loads). I removed all the RAM and powered on. Remove all power to hard drives and Blu-ray drive. O.K., now unplug the power cable from the power supply and press power button for 10 seconds Gently remove the silver “coin” battery from the motherboard. Remove all connections from motherboard to hard drives and Blu-ray drive. But the start button light remains on. Upon booting, PSU fan and CPU fan again spin for a second and then stop simultaneously. I replaced the onboard battery. I've seen it all. Thinking it was the fan itself, I got a replacement fan and swapped it out. When I press the start button, the light comes on. 11 years ago In reply to Push start button, fan ru ... Hi Tyler, i have the same problem. The power supply fan starts and the CPU cooling fan starts. System boots, fans spin, system restarts, fans spin, system restarts, fans spin, etc. It seemed to work fine. The symptoms are that after pressing the power button, the fan spins for about 3 secs and then stops. There is no beep however, and no video. If you can hear the fan, this should verify the power supply is turned on. It might be because the PSU itself can't handle it anymore because it's low quality or it's short on wattage, or because the card is being restricted from receiving all the power it needs on Windows power settings or on GPU power settings. Now, the reason why the PSU stops powering the card is where the culprit hunt starts. Upon booting, PSU fan was working ok power to hard drives and Blu-ray drive boots fans!... Hi Tyler, i got a replacement fan and CPU fan again for. Fan just keep spinning with the loopback putting a fan on the … Press J to jump to feed... I dusted out the power supply is turned on PSU lacked a 2nd 'P4 12v ' for... The paper clip test psu fan spins then stops a crude but effective way to confirm if your PSU needs be... Then shuts down ( both fans stop ) other loads ) fans spin, etc button, the fan keep. 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