BIOS update troubleshooting

PCPartPicker part list / Price breakdown by merchant

Type	Item	Price
CPU	Intel Core i7-4790 3.6GHz Quad-Core Processor	£226.80 @ Kustom PCs
CPU Cooler	Cooler Master Hyper TX3 Evo 43.1 CFM CPU Cooler	£16.25 @ CCL Computers
Motherboard	Gigabyte GA-Z87-D3HP ATX LGA1150 Motherboard	£85.07 @ More Computers
Memory	Corsair Vengeance 8GB (1 x 8GB) DDR3-1600 Memory	£60.31 @ More Computers
Storage	Crucial MX100 128GB 2.5" Solid State Drive	£51.74 @ Amazon UK
Storage	Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive	£39.99 @ Amazon UK
Video Card	Gainward GeForce GTX 760 2GB Phantom Video Card	£172.51 @ Scan.co.uk
Case	Corsair 300R ATX Mid Tower Case	£54.99 @ Amazon UK
Power Supply	XFX TS 550W 80+ Gold Certified ATX Power Supply	£61.86 @ Scan.co.uk
Optical Drive	Lite-On IHAS324-07 DVD/CD Writer	£19.67 @ Amazon UK
Monitor	Asus VX238H 23.0" Monitor	£149.26 @ Amazon UK
Wireless Network Adapter	TP-Link TL-WDN4800 802.11a/b/g/n PCI-Express x1 Wi-Fi Adapter	£26.39 @ Aria PC
		Total
	Prices include shipping, taxes, and discounts when available	£964.84
	Generated by PCPartPicker 2014-11-17 16:25 GMT+0000

So I've built a hackintosh, but it won't boot at all. I've done my research and tried many solutions, and have concluded that I need to update my BIOS in order to use the i7-4790 with my motherboard. To do this I plan to buy a cheap CPU (celeron G1840) and use it to then update the BIOS. My question is, how can I be reasonably sure that the celeron will work?Gigabyte says the celeron need BIOS version F5 while the i7 needed F6. Since there doesn't seem to be a way check which version my motherboard is sporting, is it safe to assume it's at least F5, as I bought it just recently?

submitted by Yopiap

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What is missing? Please comment to help! ...[source] For more info try www.iatkos.net