Okay, I decided to wait on that build because I wanted a PCIe 3.0 CPU and motherboard to support the upcoming HD 7xxx and GTX 6xx series graphics cards. Ivy Bridge is too far away for me right now (they are saying March or April) so I've decided on Sandy-Bridge-E. The high-end AMD graphics cards are due in January according to rumors so that is only a two month wait or even one month if they come out early January.
This is what I've planned now:
Processor: Intel Core i7-3930K ($599.99)
Cooler: Corsair Hydro Series H80 ($93.99)
Motherboard: GIGABYTE GA-X79-UD3 ($269.99)
RAM: 16 GB Corsair Vengeance DDR3 1600 MHz CMZ16GX3M4A1600C9 ($89.99)
Graphics card: 2 x XFX Radeon HD 7970 ($699.98?)
Sound card: Creative Sound Blaster X-Fi Titanium HD ($139.99)
SSD: Intel 510 Series 120 GB ($275.00) or Intel 520 Series if available by the time I buy
HDD: Western Digital Caviar Black 1 TB WD1002FAEX ($79.99?)
Optical drive: Sony Optiarc AD-7261S ($19.99)
Power supply: Corsair Professional Series Gold AX850 ($183.99)
Case: Corsair Obsidian Series 650D ($189.99)
Monitor: ASUS PA238Q ($274.99)
Speakers: Corsair Gaming Audio Series SP2500 ($199.99)
Keyboard: Microsoft SideWinder X4 ($42.77)
Mouse: Logitech G9x ($59.99)
OS: Microsoft Windows 7 Ultimate
1. Will an H80 be good enough to cool an overclocked 3930K or should I swing for the H100? I know that the 3930K is not exactly a cool running CPU.
Well, what are you hoping to OC to? Yes an H80 will be enough to cool an over clocked 3930K. Will the H100 *possibly* allow for a higher OC due to lower temps? Yes. Notice I emphasised "possibly". As always OC'ing is not a guarantee- there are other variables such as MOBO and RAM that play a big part in a units over all over-clockability.
2. Will the AX850 be enough to power this build?
I don't see why not. If you're worried about it and can afford it jump up to a 1200Watt PSU. Single or Quad Rail recommended of course. I've been using my 850Watt PSU since mid'06 so over 5 years now. Ran dual 8800GTXs without a problem and those things were far from energy efficient. I imagine the 7970s will be much more power-friendly than the top-tier G80 was so I'd say even running two of them you should be fine. But again, if you are concerned about it just bump up to a 1KW or 1.2KW PSU. If it's from a reputable vendor like Antec, Silverstone, SeaSonic, OCZ, etc you'll be fine- but just check the AMPs on the 12v rail(s) just as a precaution. Likely at that wattage you'll be more than sufficient but always a good thing to check just in case.
3. What happened to the Intel 520 SSD? Rumors were saying early November release date.
Oooh... good question- I've no idea. I don't follow SSDs too closely but I know Slawter does. Maybe he'll be able to chime in here.
4. Is it better to get two HD 7970 cards in CrossFireX or a single HD 7990?
There is no "yes" or "no" answer here. It strictly boils down to preference. So the right question is "Which would you prefer- two HD7970s or a single 7990"?