Problem booting PC

[williamthomasfrancis]

First of all, I didn't really know where to ask this, so sorry if I've put this in the wrong category. I've been having a problem for a year or so now, that I've never gotten round to fixing although it is very annoying. When I press the power button on my PC, no signal is sent to my monitor for any amount of time that could be two seconds or a few hours. When it's done doing whatever it's doing, I get the following text on my screen:

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E7918IMS V2.10 02/16/2016

DRAM Frequency for DDR3 1600 MHz(Dual Channel)
DRAM Size is 8192 MB

USB Device total: 2KBDs, 2 MICE, 0 MASS, 2 HUBs

Detected ATA/ATAPI Devices...
SATA Port1: KINGSTON SV300S37A120G
SATA Port2: WDC WD10EZEX-00WN4A0

All settings were reset to default values.
Press F1 to Run SETUP
Press F2 to Continue

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I usually just press F2, and my PC boots with no problems after that.

I've tried reinstalling Windows 10, but nothing changed.

It used to boot just fine, and then the issue popped out of nowhere.

I've tried looking online for help, but I can't seem to find anyone with a similar issue.

Any help would be appreciated, since I am rather stuck now

Thanks

Edit: forgot to provide specs! It's a custom built PC

CPU: Intel i5 4590
Graphics card: MSI GTX 960
Motherboard: MSI H97 gaming 3
RAM: HyperX Savage 2 x 4GB
PSU: EVGA Supernova 550 G2

 

[ElectrO_90]

Battery probably flat for the CMOS/BIOS
Change it

 

[williamthomasfrancis]

Battery probably flat for the CMOS/BIOS
Change it

yep, boots up just fine now, thanks