power supply with haswell

[hbazzi98]

i am going to get a power supply, but i want to know does a power supply HAVE to be haswell compatible? i am getting a generic 975w powersupply for $70, and i dont care if a power supply says a brand or not i just want a working one, recommendations is welcome btw.

 

[chumly]

i am going to get a power supply, but i want to know does a power supply HAVE to be haswell compatible? i am getting a generic 975w powersupply for $70, and i dont care if a power supply says a brand or not i just want a working one, recommendations is welcome btw.

From Corsair:
"According to Intel's presentation at IDF, the new Haswell processors enter a sleep state called C7 that can drop processor power usage as low as 0.05A. Even if the sleeping CPU is the only load on the +12V rail, most power supplies can handle a load this low. The potential problem comes up when there is still a substantial load on the power supply's non-primary rails (the +3.3V and +5V). If the load on these non-primary rails are above a certain threshold (which varies by PSU), the +12V can go out of spec (voltages greater than +12.6V). If the +12V is out of spec when the motherboard comes out of the sleep state, the PSU's protection may prevent the PSU from running and will cause the power supply to "latch off". This will require the user to cycle the power on their power supply using the power switch on the back of the unit."

I got that from here which has a big list of compatible PSUs.

 

[iskra]

It doesn't but advanced powerstates of haswell would not work if PSU is no compatible.
I would advise against 975W PSU for 70$. Anyway why do you need 975w?
Use http://www.extreme.outervision.com/psucalculatorlite.jsp to calculate your power draw and better buy from reputable brand

 

[hbazzi98]

alright generic out, what about my thermaltake purepower 600np, it runs on the settings on what it needs, so it adjusts on the power the Mobo needs.

http://www.newegg.com/Product/Product.aspx?Item=N82E16817153042