Rebooting before BIOS

asdfgazhjkl

Honorable
Sep 16, 2013
4
0
10,510
(The only reason I am posting this is motherboards is purely because I can't think of any other problem right now)
I finally got my laptop working again sometime last week, having been at war with the company I bought it from who simply refused to repair their own problems, and Royal Mail refusing to own up to causing physical damage.

Since then, I've mostly spent the time I've had it playing games, since I now have a laptop with a graphics card that can actually run the most basic of games, other activities including basic web browsing and streaming music via Spotify.

Earlier I left it in my room for about 5 minutes playing music while cleaning my hamster cages, and I came back to it looking like this (photo courtesy of my snapchat)
tumblr_n3w2hgX3gm1ql8j5uo1_500.jpg


So I gave it the one fingered salute, hoping it just needed reset, and since then when trying to boot, it will spin up for a second, (lights come on, fan / HDD come to life for a second or two) then it restarts the process. I've taken it completely to pieces, and tried using the original SSD which contained the OS (I upgraded this when I got the laptop back last week) and that made no difference. Tried moving the RAM between slots, removing BIOS battery, etc.

I have simply no idea what the problem is here, and I'm just hoping for some guidance to what's going on :c ask any question you need if I haven't given enough detail! Thanks in advance, Gaz.

Laptop:
Dell Inspiron 14z Ultrabook
Processor: Intel Core i7 3517U
RAM: 2*4GB
SSD: Crucial 120GB mSata SSD (Boot drive, holds OS, not original)
HDD: 500GB, I believe it's Hitachi?
Graphics: AMD Radeon HD7570M