console killer PC psu help

[Javier Ewe]

Hey, I'm upgrading my living room PC and allowing it to play games on it, previously it was a C2D E7500, pretty crap.

So, i plan on upgrading it with under 100USD, (live in SG to under 150SGD).

Here it is:

 

PCPartPicker part list: https://pcpartpicker.com/list/zvbKTH
Price breakdown by merchant: https://pcpartpicker.com/list/zvbKTH/by_merchant/

CPU Cooler: Scythe - SCBSK-1000 38.0 CFM CPU Cooler  ($10.00) 
Motherboard: Biostar - G41D3C Micro ATX LGA775 Motherboard  (Purchased For $0.00) 
Memory: Kingston - ValueRAM 2GB (1 x 2GB) DDR3-1333 Memory  (Purchased For $0.00) 
Memory: Kingston - 4GB (1 x 4GB) DDR3-1333 Memory  ($15.00) 
Storage: Hitachi - Deskstar 320GB 3.5" 7200RPM Internal Hard Drive  ($3.00) 
Video Card: EVGA - GeForce GTX 670 2GB Video Card  ($56.00) 
Case: Cooler Master - Elite 311 (Silver) ATX Mid Tower Case  (Purchased For $0.00) 
Power Supply: Corsair - Professional 1050W 80+ Gold Certified Semi-Modular ATX Power Supply  (Purchased For $0.00) 
Optical Drive: LG - WH12LS30 Blu-Ray/DVD/CD Writer  (Purchased For $0.00) 
Keyboard: Logitech - Value 100 Wired Standard Keyboard  (Purchased For $0.00) 
Mouse: Logitech - SBF-96 Wired Optical Mouse  (Purchased For $0.00) 
Other: Intel Xeon X5450 Processer (Q9650 equivelant) ($12.00)
Other: Cooler Master V1 Thermal Compound (Purchased)
Other: Arctic Accelero Twin Turbo (Purchased)
Other: Headway SF450W junk crap explosive power supply (Purchased)
Other: LGA 771 to 775 mod sticker ($2.00)
Total: $98.00

Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-06-25 02:07 EDT-0400

 

What do you think of it? The X5450 is a Core 2 Quad Q9650 equivalent but it is better binned with the highest quality silicon and thus better overclocks and it's cheap as well. LGA 771 to 775 mod.

Nice that the GTX 670 would come with a pre installed Arctic Accelero Twin Turbo!

Also is it possible to use the 6/8 pin connectors from my 24/7 mining rig (which is why there is such a overkill PSU). My mining rig is currently only using ~650W or so. My main PSU only has one 6 pin. Will anything detrimental to the parts happen if the mining rig suddenly shuts off while i am gaming, or must i plug out the 6/8 pin connectors to the mining PSU every time i am done using this PC.

Thanks for your time.

 

TL;DR can i use a power supply from a mining 24/7 rig to power my graphics card in this rig?