Search the Community

I have been battling this baffling issue for months now. I have resorted to using gremlins and ghosts to explain why this is happening (I posted about it here), but here goes: I have a computer that won't turn on at times, then when I bring it to a computer store and plug it in there, it would turn on. But it never worked on any other socket at home, regardless if I had it hooked up to a UPS or not, but that changed today (I'll explain later below). Note that the computer has no other issues as it is stable when gaming or with general use. No matter what kind of troubleshooting I did, and short of replacing the motherboard and case, I replaced the PSU. The problem then disappeared... only to reappear a few months down the road. I heard about how humidity can affect computer longevity or performance. So I did an experiment. I have a thermometer/humidity meter unit that I use. Just today, the computer wouldn't turn on, and I noticed that the meter was registering 84% humidity. I then move the PC to another room, and plug it in to another socket... same issue. But this time, I turn on the AC on this room. I waited for the humidity to drop to 79%, and then.. it turns on! What is going on? What can I do to make this PC turn on like it's supposed to (without the AC)?

Hope everyone reading this is doing well, and thanks for looking this over. Hardware: Corsair 4000D Case Gigabyte B550 Gaming X V2 AMD (https://www.wootware.co.za/gigabyte-b550-gaming-x-v2-amd-b550-ryzen-socket-am4-atx-desktop-motherboard.html) Superflower 850W Silver PSU Ryzen 7 5700G CPU Palit RTX 3080 GamingPro OC GPU Dell S3220DGF Monitor (Keyboard and mouse plugged in here) Corsair K70 Keyboard Logitech G502 Hero Mouse HP ProBook 450 G3 Laptop (for work) UGreen Usb 2.0 sharing switch (https://www.takealot.com/ugreen-2in-4out-usb2-0-sharing-switch-box-bk/PLID47209914) (Monitor plugged in here, this is plugged in to laptop and PC) Windows 10 64bit (latest update) Problem This setup works fine for doing anything for work (programming), or non-gaming, but the following happens: On PC shutdown, the PC doesn't always properly turn off. It will often turn the fans and internal lights back on for less than a minute, then shut off, then back on, rinse and repeat infinitely. The only solutions I've found for this is either turn the PSU off at the back of the case, or turn the mains off, and after this, on next restart, all BIOS settings appear to have been reset (I have SVM turned on, and this disabled it again) In games, there is considerable input lag (keys register as pressed after being released, moving the mouse won't change the view, and then it will jump drastically) On PC Startup, it won't always register that the keyboard and mouse are plugged in, with the switch set to the PC, until either after a while it eventually picks them up, or I plug things out and back in again several times This was slightly mitigated by plugging in a micro-usb power cable into the switch Further testing with another keyboard and mouse (Ducky and Steelseries respectively) and my current set, each plugged directly into the PC tower on the motherboard, removed the issue. Having the keyboard and mouse plugged into the screen and that data cable plugged into the motherboard didn't help. Based on the 'improvement' made by plugging in an additional power source to the USB switch, I have a suspicion that perhaps the screen isn't outputting enough power, or perhaps the particular ports on the motherboard aren't, but I'm hardly an expert. Any assistance would be greatly appreciated.

So over the years I have had laptop seemingly randomly wake from sleep with no obvious reason. What made the occurrence stranger is that this is usually when the lid is closed and windows is set to sleep with the lid shut. Also after waking it would then refuse to stay asleep if put to sleep again. So after being puzzled for years blaming the occurrence on things like a wireless mouse being clicked or the keyboard being pressed in by the screen I believe I have finally found the reason. As it turns out when in sleep mode if the battery gets too low the machine will power back on! After testing this on an Alienware 17 R4, an old HP g6 and friends Razor I can confirm they all do this. Now I can sort of understand why but also find it damn confusing. If it were logical, it would turn back on to then go immediately into hibernation (which uses almost no power) as opposed to stand by (which uses quite a bit in comparison). However this does not happen, the machine simply turns on and bakes in my bag or chueches along on the desk until it gets a critically low battery and then sometimes hibernates and sometimes hard shuts off. It could potentially stay in stand by for several more hours if it did not power back on then sit there for 40minutes until critically low battery. However, upon thought, I realized as the battery gets older the time/percent charger will reduce. With modern SSD's standby is almost not necessary with resume from hibernation taking 15s as opposed to 60s + with a HDD however going into hibernate is pretty slow. So my solution is to make the power button hibernate and lid close standby, that way when the machine powers on randomly I can force hibernate immediately and potentially have 40 or more minutes use if needed as compared to it refusing to turn back on until AC is connected. hell this would make for an interesting video LTT.

Hello, I’m having one of the weirdest issues on my PC. I recently migrated all my parts from my case to another, it was working fine until the next day, it just stopped. I first thought it was my PSU, so I brought in another one which was working and my system still didn’t power up. Okay, maybe loose wiring? Nope, everything was in the right place and secured. Hmm, maybe the CMOS battery? Nope, tested that multiple times and no luck there either. It’s very strage because my motherboard was receiving power as indicated by the LED, but as I goto turn it on, absolutely nothing happens, no fans, no disks spinning, dead. I have no clue what it could be, please help as I need this urgently for projects! Thanks to all that spent time on my post! Specs: CPU: i7 8700 MB: ASUS Tuf Gaming B360-pro GPU: EVGA GTX 1070 PSU: EVGA 550W 80+ Gold Ram: 2x 8gb Hyper Furry

When I try to turn on my computer every day it almost never works first try, I always have to try multiple times due to the following issues happening a random amount of times in a random order: - no post due to orange LED on mobo (DRAM error) - no post due to white led (VGA error) - just freezes during the windows boot process and hangs forever. - freezes during the windows boot process, restarts and does this forever. - Blue screens with the WHEA_uncorrectable_error stop code BluescreenView: when I manage to make it to the windows log in screen usually it stars working perfectly though, never get bluescreened out of windows and face no performance issues what so ever. Specs: Ryzen 2700x ASUS ROG STRIX X470_F Corsair Vengeance LPX DDR4 2666mhz 16gb Gigabyte GTX 1080 Nothing is overclocked and all temperatures are fine. edit: for people of the future and might somehow end up here, the problem was a defective cpu.

So this is not exactly a problem, but I am still asking just in case it is a symptom for a larger, more serious problem. Here are the specifications: Asus B85 Trooper i7-4980HQ (No, this is not a typo) H110i v2 DDR3-1600 G-Skill Aegis 8GB*2 Asus GTX 970 Adata SU650 480GB as boot drive 3TB Toshiba spinny boi CX550M Mobo, RAM and GPU is from 2016-ish and the i7 was around half a year ago, AIO 1.5 years or so, SSD about a year before now, the HDD somewhere along the lines of 4 months So when I boot up the computer, it: Starts up fine to the BIOS screen, then shuts off temporarily. The LED in the mouse turns off. Something audibly "pinged". Then, boots to windows safe mode where I have to choose safe mode or normal mode. Selecting normal mode, the LED in the mouse turns off, and something audibly "pinged" again. Then, and only then does it boot up to Windows 7. I have exactly zero clues why or how this is happening. While this is doesn't stop me from using my computer, it is kind of unsettling and annoying. Help would be appreciated, thanks! I swear to god if it is the i7 I'm gonna go punch a cup of water

Hey all, my pc, as the title says, powers up, but doesn’t boot up. My M&K, headset or anything that is connected to my pc, doesn’t power up, and my monitor is just black with nothing on it. It has been doing it for a while, and it would eventually boot up, but after my small session on world of Warcraft today, I left it for around 1-2 hours, came back, and it doesn’t boot up what so ever. My my friend said it is my PSU, but if it was that, it wouldn’t be working fine once it’s up and running would it? Then I have seen that intels meltdown update corrupts some people’s boot sequences. If that’s the case, I can’t repair it as I can’t actually access my pc as I said above, it doesn’t boot up. I have noticed, when it’s in the failing to boot up but it’s powered on phase, my exhaust fan lights, are the standard brightness for around 5 seconds, then they go really bright for a second, then back to standard brightness again, and it’s that repeated over and over again. Here are my specs if they are needed: Asrock b85m pro4 intel i7 4790k MSI GTX 1080 TI 16GB ddr3 Ram XFX 650w PSU But I honestly don’t know what it could be. also if this is in the wrong forum section, I’m sorry as this is my first time posting here, so I apologise in advance.

3 months ago, my old PSU (shitty brand, 600W) started making rattling noises so I decided to buy a new one, a Seasonic G-550. Several days ago, my PC suddenly didn't want to start anymore when I pressed the power button. Furthermore, my PC started crashing while playing games. About the issues: When pressing the power button, sometimes nothing would happen at all, and sometimes it would start, however, this would happen instantly or anywhere from 5 seconds up to 5-10 minutes after I pressed the power button. My PC first crashed while playing WoW. Now, this usually happened while there were a lot of other players around and there was a ton of stuff happening on screen. I tried playing The Witcher 3 and the crashes also happened, anywhere from within seconds of loading a game up to 2 hours of playing. What I tried: I checked game specific solutions, lowering the graphics quality, removing addons from WoW. Cleaned the case from dust, which I do regularly anyway. Checked if all cables were properly plugged in and switched the PSU cable to go directly into the wall. Clean install of new drivers. Checked the temperatures of the GPU and CPU while playing. CPU was okay, GPU was sligtly high on WoW with 75-80 degrees and it was over 90 degrees Celsius almost all the time while playing TW3. Mind you, my GPU is an MSI R9 290 which runs somewhat hotter normaly. Checked if the power button is broken by trying to turn on the PC by short cutting the power pins on the mobo. Nothing happened. Put in my old PSU with which there were no problems when trying to power on the PC,m however I don't trust it enough to put it under more stress. My build What is the cause of my problems and what would be a solution in your opinion? I am looking forward to your answers P.S.: I might post this on other forums to get as much info as possible and solve this asap. Edit: grammar and a few words

Just bought a Maximus VIII Hero with Core i5 6600K. The motherboard doesn't boot. Sometimes the on-board Start and Reset buttons are lit, otherwise they don't. When they do, if i plug in any USB peripheral in the USB Bios Flashback port, the Start and Reset buttons start to blink. Tried pressing the Bios flash button for 3-10 seconds, nothing happens. There is no Q-Code on the digital display no matter what. There is no on-board LED lit up no matter what. The CPU fan doesn't start. The ROG logo doesn't light up. I tried everything I found on the web, nothing worked. What I have tried includes: - CMOS battery plugged out for few mins and then put back in - Used a screwdriver to short the CMOS battery connectors - Switched the CMOS reset jumper and powered on - Checked CPU socket pins, they are not bent or anything - Took out the board out of the case - Only CPU, Cooler, 8-pin CPU power and 20+4 power and CPU fan connected - Took out the CPU and tried booting the board only - Tried with 1 DIMM in proper slot - Tried without DIMMs - no beeps - Tried USB Bios flash (with BIOS update appropriately named) - Tried on-board buttons for Start, Reset, Bios reset, MemOK With the mobo and CPU included, my build is: Skylake Build Before, and currently, because the new board isn't working, my build is: Old Core 2 Quad Build I know the PSU isn't great, and should have been replaced for the upgrade. But it has no problems whatsoever with Q6600 and a GTX970 installed, even when I let it run thru the night or when I play games. One thing to note though, my old board requires only 4-pin CPU power. I'm thinking it might be a PSU issue (maybe the other 4-pins aren't working). So my question is: 1. Is there something else I can try before returning the mobo 2. Is there any part in my build that requires attention, other than mobo problem Points to consider (if it comes to buying/replacing parts) I live outside the US After spending this much on Hero and 6600K I'm really tight on budget Specs: Intel Core i5-6600K 3.5GHz Quad-Core Processor Cooler Master Hyper TX3 Evo 43.1 CFM CPU Cooler Asus MAXIMUS VIII HERO ATX LGA1151 Motherboard Corsair Vengeance LPX 4GB (2 x 4GB) DDR4-2400 Memory Asus GeForce GTX 960 2GB Video Card Cooler Master Elite Power 460W ATX Power Supply