BSOD - Struggling to understand

Hi all, im new here as you can see and i'm sorry if this seems like a simliar post, but believe me ive been struggling for last few hours over internet on information and how to do things and getting in all kinds of trouble (i will admitt im not 100% best at computers), so here goes whats been happening with my new machine last few weeks.

2 weeks ago i had both monitors go black, then blue with the whole "prevent damage....etc" with code 0X00000116 (display drivers). It happend 3x times and that was just browsing normal on the internet, no games etc. The company of the computer told me to unistill catalyst programme and re-install. updated all windows, seemed to be fine from there on.

Few days later after the screen saver went off and monitors to black i noticed when moved mouse and come back on, it said "display drivers were not responding, but succesfully recovered" on the bottom bar, but i thought nothing of it and it seemed fine.

I now had today the BSOD again but this time code: 0x00000124 (uncorrectable hardware issue), i restarted, researched on internet and found some different answers.

after leaving the computer on as was downstairs on phone, come back to see screen saver went off and screens black, moved the mouse, but they just stayed black. NOTE: This has happened once before also. restarted as only thing i could do

last hour ive had BSOD once again with code: 0x0000019 (bad_pool_header).

Im puzzled now as to whats going on. as i speak its working all ok, but i keep getting these Odd BSOD come up.

I've read about getting the minidump up, but im struggling as even though im classed as administrator it says access denied and im unsure what or how you open them. ive tried ways it said on internet but i think im doing it wrong, so was hoping you fine people could give me a very clear step by step to someone like me.

here is my computer that ive purchased.

Cooler Master Silencio 550 All Black Silent ATX Case
Modular 850W Quiet 80+ Dual Rail High Efficiency Power Supply
ASUS P8Z77-V LX, USB 3.0, SATA 6GB/s, Quad-GPU CrossFireX™
Intel® 3rd Gen. Ivy-Bridge Core™ i7-3770K Processor (8M Cache, 3.50 GHz)
Corsair H60 High-performance CPU Liquid Cooler
Overclock Configuration (available when Liquid CPU Cooler is selected)
16GB DDR3 1866MHz (2x8GB) Memory Kit - G-Skill RipjawX
2GB AMD RADEON™ HD7870 - DVI-I,HDMI,2 mDP,EyeFinity 4 Capable
Active Mini Display Port to DVI Adaptor (Eyefinity 3x Monitor Setup)
2TB SATA III 6Gb/s, 7200rpm, 64MB Cache, 8ms Hard Drive
Blu-Ray Combo Optical Drive (12x BD-R Read, 16x DVD Writer)
Multi-Format Memory Card Reader -(52-in-1 Internal)
Genuine Windows® 7 Home Premium 64 bit - inc DVD & Licence(R)
FREE Microsoft® Office 2010 Starter Edition
Creative Sound Blaster Recon3D PCI-E Soundcard 7.1Ch - 70SB135000002
Edimax 300Mbps Wireless 11n 32Bit PCI Adapter, Twin Antenna - EW-7722In
24" IIYAMA E2473HDS LED Widescreen- 2x HDMI/DVI-D 1920x1080
24" IIYAMA E2473HDS LED Widescreen- 2x HDMI/DVI-D 1920x1080
Creative Inspire T6160 5.1 Surround Sound Speaker System -- NOT INSTALLED YET
Logitech MK260 Wireless Keyboard & Optical Mouse - Black
Eyefinity Technology


As i say, i really am struggling as im trying to get stats etc so i can show and people could possibly tell me what is the fault here. I know its quite a high spec machine for someone who is not very clued up on computers.