TheMiniMiney

oh yes , it is connected to a power extension with a fuse , so it probably has some protection.

The Machine was on when the outage occurred. No its not protected by any ups

Oh yes , now that I recall, there were a few power outages just before I left using the PC.

It was left not being used for around 4 days. it is my daily driver. I don't have a spare CMOS right now to to check.

As mentioned in the title , the pc was left for a few days and now does not boot. All the lights turn on (GPU , CPU , Chassis fan) but within a few seconds the CPU light turns off , then CPU light comes back on while the Chassis light turn off and this continues in a loop with no output to the monitor. GPU light stay on constantly. CPU Ryzen 1700 8 gb kingston ddr4 ram Gigabyte G A320M-s2h MOBO nvidia 1050ti 250gb ssd 600W Antec psu Things I've tried ->Reseating RAM ->changing with another working RAM ->unplugged GPU to test boot -> reseating some other wires Any help would be appreciated.

l have edited the post with more information

Just wiped a working laptop to clean install Win11 on it . Created own ISO from uupdump , also tested other working WIN11 and WIN10 ISOs on the laptop. The installer proceeds till 95-99% (Getting Windows files ready) and then gives the error as make sure all the required files are available for installation ERROR code 0x800701b1. Now can't even go back to windows 10. l have tried all the usb ports , no help. If anyone has any idea please help , thank you EDIT - Sorry , forgot to mention specs Acer Aspire VX15 i7 7700hq 8gb Ram ddr4 256 gb nvme SSD Using SanDisk 128 gb USB 3.0 and Rufus to put the iso in gpt mode with FAT32 file system Both WIN 10 and 11 give same error and PopOS or any other legacy mode OSes do not even recognise the nvme drive (only in UEFI mode is the drive recognised)

Is there any possibility of some other error ? Anything which I should be checking? While I am at it , whats the best solution for backing up a big HDD? Another HDD or Cloud storage ?

But dont drives usually give symtoms of slow downs in performance before they actually give up ? My SSD was performing perfect and i didnt even expect it to stop while i was playing a game off the HDD.

I have a laptop , Acer Aspire VX 15 , has 250 gig nvme ssd that came preinstalled , and a 1TB hdd which i later on installed. I was playing MSFS2020 when suddenly my laptop powered off. On pressing the power button , it says no bootable device found. I tried changing UEFI to Legacy (because i read it somewhere online) but no help , gives 'press enter after inserting bootable device' error. Then i booted into a windows 10 installation USB and launched CMD , and on listing available disks in DISKPART , it only shows the USB and the HDD , not my SSD. I have not installed anything recently and not updated my bios either , but i would get BSOD once in a while , ever since i installed VALORANT (I think due to Vanguard). This is a really bad time for this to happen , considering i need to attend online meetings. If any one has any idea on this error , I would appreciate your help. Thank You EDIT - Just to be clear , laptop with its included SSD is 3yrs old while the HDD is a bit over 1yr. And it has been less than a month since i did a fresh reinstall of windows. Start up repair doesn't anything since my windows drive isn't even detected in the BIOS. The last thing i installed was NETCUT to control my wifi network .

Might sound silly , but check whether the GPU power cable is properly connected to your GPU and PSU. Sometimes the smallest of things can be overlooked.

Ever since I have reinstalled windows and added my HDD back , its been creating some problems , especially with many windows programs , like can't change the default app save location to HDD (D:) instead of C drive (trying to download FS2020 on it) .It throws error code - 0x80070005 Even the windows store refuses to do anything when I select D drive, The store downloads anything on the C drive. Windows update has also giving me errors , where the update KB4566782 downloads and installs till 73% and then throws an error code 0x8007000d. Manual installation of the update is also not working. I've tried messing around in the permissions and ownership settings and given myself (user) full control , still no use. I suppose adding back my HDD after reinstalling fresh copy of windows has done something , where it cannot access my D drive. (Although it can create folder in the drive , like the WindowsApps folder , but can't change the save location to it.) Any help would be appreciated!

so I downloaded DirectX runtime installer which included 9/10/11 and somehow that fixed it . I will test out some more games and update whether the problems persists or not. But thanks alot for your time.

no , nothing of that sort

yes , have done it multiple times now , including multiple restarts