Soldato
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I suppose Seasonic is better right -.-?
OcUK recommends XFX Power Supplies for Haswell
- Thread starter Ace Modder
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If I took the GPU out of my PC, I have a 10 year old PSU which I could use to power my Sandybridge PC... I wouldn't want to, but I could.
I dont see the point of certifying a PSU to be compatible with Haswell...
Were PSU's ever 'officially certified' for Sandy/Ivy?
I dont see the point of certifying a PSU to be compatible with Haswell...
Were PSU's ever 'officially certified' for Sandy/Ivy?
Haswell has a new even more power saving C state that cheap PSU's and older branded PSU's can't do.
as long as it makes it easier for consumers I guess..
Seems to be a lot of fear creating over nothing though, how many people really give a crap about the sleep state? and I'm pretty sure it's something you can likely disable in the bios anyway
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OcUK will handle the warranty for the full period.
Associate
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Which can be disabled in the bios, so not really a major issue.
Soldato
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all XFX PSUs are made by seasonic, so would assume so, likewise my HX850w appears to be fine
although I doubt I'll go haswell, still not got round to OCing my 2500k (please forgive me forum folk, I'll get round to it soon 
)
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That's a nice little advertisement
First, Be Quiet! has announced that all of its current power supplies are compatible with the Haswell CPUs. This includes all the models that are currently in production and for sale, but not older units, which might still be on shelves, but are not necessarily compatible. Some older units are mostly compatible, it mentions. The model series that are definitely compatible are: the Dark Power Pro 10, Straight Power E9, Pure Power L8, System Power 7, and Pure Power L7 series (630 W and 730 W).
Moving on, Thermaltake has announced that the Toughpower Platinum (700 W and 600 W), Toughpower Gold (1200 W, 1050 W, 850 W, 750 W, 650 W), Toughpower XT (1475 W, 1375 W, 1275 W), Toughpower (1500 W, 1200 W, 1000 W, 850 W, 750 W), EVO_BLUE 2.0 (850 W, 750 W, 650 W), and SMART M (850 W, 750 W) are all 100 percent compatible with the upcoming Intel Haswell CPUs.
Lastly, Fractal Design has also released a list of Haswell compatible power supplies. The power supplies that it has mentioned as compatible include the Newton R3 (1000 W, 1000 W White, 800 W, 600 W) and the Tesla R2 (1000 W, 800 W, 650 W, 650 W White, 500 W). The Integra R2 lineup (750 W, 650 W, 500 W) have been rated as likely compatible, although the compatibility is questioned since Intel hasn't released any formal testing procedure or minimum qualifications.
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Associate
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What PSU's aren't recommended then? I see a few people getting messed about if they are planning on upgrading?
I have a Corsair 860w Platnium, I'm guessing i'm in Haswell's good books?
EDIT: Table below says I'm all good!
I'm pretty sure almost every modern PSU (that isn't poor quality) will be fine with Haswell. Off the top of my head I can only remember the Seasonic S12II platform does not like being crossloaded. The +12v regulation goes completely out of whack if you have a low amount of load on the +12v.
I wouldn't bother with any lists, as it's just a way to get you to buy a new PSU. Jonnyguru and TPU do crossloading tests so you can check for yourself whether your PSU will suffice or not.
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You say that, but the XFX below 650w are not managing to be 100% Haswell ready, as is the same with other brands.
So potentially an upgrader would need more than just a chip, board and RAM? WAT? Im running an old, but great Corsair VX450W on my rig which is either useless or will need some BIOS tweaks for a....... PSU? Come on Intel.. Should not be needed for a desktop chip. Im not worried about power usage!
You will be able to disable/ enable the new sleep sate in the bios.
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Yeah, because most PSU's under 550w or so tend to be group-regulated designs. The +12v and +5v voltage is generated from the same regulator, so any increase/decrease in voltage that the circuit tries to apply to the +12v also gets applied to the +5v (and vice versa, and remember that's not even accounting for natural vdroop that occurs when the load changes), which is why the voltages will get wonky when you crossload them. Independant-regulated PSU's don't have that problem, as each rail gets their own circuit... They're much more expensive though, which is why it's rare to find them in lower wattage PSU's.
The XFX Core 450/550 are both S12II - group regulated http://www.jonnyguru.com/modules.php?name=NDReviews&file=print&reid=224. Antecs lower wattage HCG/Neo ECO PSU's are S12II aswell, same story: http://www.techpowerup.com/reviews/Antec/HCG-520/5.html
The lower wattage Corsair CX units are also group regulated (CWT DSA II is the platform), so they (and a lot of other low wattage PSU's) probably wont be classed as "Haswell ready".
http://www.jonnyguru.com/modules.php?name=NDReviews&file=print&reid=239
Of course you can just disable the power saving feature and all yor potential problems will go away...
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