Numerous PC issues (?)

[PlainBread]

This is my first PC build, and it’s been working good for around 2 years now. Recently when I turn on my PC, it starts then shuts off. Seconds later the system turns back on and a series of lights glow on the motherboard from red, orange, white then green. This will always opt me to start the bios screen then exit from there. (Previously never did that.) Ive looked at my manual and tried numerous solutions like rewiring, cleaning dust, removing and replacing the ram stick, etc but the issue is consistent. I am also now getting prompts that my drives are being repaired every time I start up, as well as my first ever bluescreen on this PC. I was told windows didnt start properly and got a few weird script errors. After 2 restarts it worked fine again. 

Specs: 

Intel i5-7600k 
Asus GTX 1060 3gb
Cooler Master - Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler 
Asus - STRIX Z270-E GAMING ATX LGA1151 Motherboard
Crucial - Ballistix Sport LT 16GB (1 x 16GB) DDR4-2400 Memory
Samsung - 850 EVO-Series 250GB 2.5" Solid State Drive
Western Digital - Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive

EVGA - 850W BQ
Microsoft - Windows 10 Home OEM 64-bit

[Spotty]

4 minutes ago, PlainBread said:

This is my first PC build, and it’s been working good for around 2 years now. Recently when I turn on my PC, it starts then shuts off. Seconds later the system turns back on and a series of lights glow on the motherboard from red, orange, white then green. This will always opt me to start the bios screen then exit from there.

When you turn your computer off at night do you switch it off at the wall/power strip/power supply?

[Master Disaster]

10 minutes ago, PlainBread said:

SNIP

I'd start by changing the CR2032 coin cell battery on the board for a new one since your system seems to be having issues saving a bios profile.

[PlainBread]

Just now, Spotty said:

When you turn your computer off at night do you switch it off at the wall/power strip/power supply?

I shut down regularly from windows, then switch off the PSU once the system is off, or else my MOBO RGB will never turn off

[Spotty]

4 minutes ago, PlainBread said:

I shut down regularly from windows, then switch off the PSU once the system is off, or else my MOBO RGB will never turn off

Mmm, that'll do it. Replace the CMOS battery on the motherboard. Normally the CMOS battery keeps the BIOS settings when there's no power to the system, but it really isn't meant to be constantly keeping power to the board so you've drained the battery by turning the PSU off. Now it's unable to save the settings and each time you boot it's effectively booting for the first time and it needs to reconfigure itself, hence why it starts up for a second and then reboots.

 

Leave your power supply switched on. There should be a setting in the BIOS to disable the RGB lights when the system is shut down.

[mariushm]

14 minutes ago, PlainBread said:

I shut down regularly from windows, then switch off the PSU once the system is off, or else my MOBO RGB will never turn off

Your computer power supply gives a low amount of power to your computer even when it's turned off. 

A small amount of that energy is used to keep the time and bios settings saved properly, instead of using the battery on the motherboard. The battery is supposed to be backup, for when your computer loses power or you move the PC somewhere else.

If you constantly turn computer off completely, the battery will probably last less than a year, so stop doing that.

 

Also, your motherboard may think that the power loss caused by you turning off the power supply is actually computer shutting down due to you overclocking memory or the processor, so it's quite possible every time the motherboard detects the power supply was shut down, it tests the memory to see if it's stable with the frequency and memory timings configured, and when it decides everything's fine, it restarts and then your computer works.

 

So I'd suggest buying a CR2032 battery to replace your existing one (do it while the pc is turned off) and to stop turning off your power supply from the switch.

If  leds inside the case bother you, then look in bios at various options to disable them when the PC is turned off.

 

[PlainBread]

Just now, Spotty said:

Mmm, that'll do it. Replace the CMOS battery on the motherboard. Normally the CMOS battery keeps the BIOS settings when there's no power to the system, but it really isn't meant to be constantly keeping power to the board so you've drained the battery by turning the PSU off. Now it's unable to save the settings and each time you boot it's effectively booting for the first time and it needs to reconfigure itself, hence why it starts up for a second and then reboots.

 

Leave your power supply switched on. There should be a setting in the BIOS to disable the RGB lights when the system is shut down.

.............................. wow. I genuinely had no idea thats what all of that meant, it just made sense to fully shut off the machine entirely especially if I knew I wouldn't use it for a while. Thats pretty embarrassing too ... ill look into it ASAP