Antec CP-1000 Haswell CPU's

The CP-1000 is old, Jonnyguru reviewed it back in 2009. http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=173

It is unlikely to support the minimum load requirement to allow a haswell chip to use its new sleep states. If you turn off the special sleep states it will do just fine, but if you have the low power sleep states enabled the system may reboot when entering or coming out of them.
 
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