Use a 4 pin to 8 pin adapter, I'm using it and it works just fine. Just a heads up i have the exact combo the op is talking about i5- 3570k + pro-3.
Also a heads up the pro series motherboards are not true SLI/Crossfire. They use a 16x/4x lane. If you want to crossfire you will need to use at least a x8/x8 lane or you will experience a ton of microstutter.
Also, if you're into overclock the pro series motherboards are not really recommended, they use a 4 phase power for the cpu. You can get around 4.4 overclock though, but with higher voltage.
Another note is that the Ivy bridge processors run hotter on higher voltage in comparison with the sandybridge since Intel used a cheap TIM on the processors.
I wouldn't say that it's required, but I've never seen a motherboard that OCs well with a 4 pin CPU power connector. As far as pointing you in the right direction for a PSU, any direction will do. Seriously, I don't think that I've bought a PSU in the last 10 years that didn't have a 8 pin CPU connector. At this point in time I believe that you would actually have to go out of your way to find a PSU that didn't come with an 8 pin connector unless you bought an ultra cheap one. It's hard to recommend a good PSU without knowing your plans (I don't know if you're planning on running dual 6970s). If you're looking for just a basic system with just a few fans, a couple of hard drives, mid range video card such as a 7850 or 660, then something like an Antec Earthwatts or Corsair in the 400-500 watt range should work well. They go on sale and are posted on here all the time. Just check the reviews and see what other people on here are saying about them.
thanks! my current build ive used for 5 years but it's beginning to die on me - had an amd 5400+ in there lol! back when 2gb of ddr2 memory was 125$.
i'm basically just building a basic one like you said - thanks for the recommendations. maybe light gaming, basic workday stuff, that'll last me a while!
That's a given. It's just that I feel cheated when 3 years ago, I could get a low-end S1366 mobo that could solidly deliver 150W+ for ~$150 (not to mention a crapload of other features like multiple x16 slots and tripple channel memory).
Nowadays, you get a dinky little 4 + 2 phase VRM (on the Pro4) that can barely handle 120-130W (OCed 2500K) without running home crying to mama.
I have no idea what this means... Might as well be in a foreign language.
I'd like to update my rig now, but honestly I'm lost when it comes to mobo discussions. Is there a 'for idiots' primer I can read to become slightly less stupid?
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