EVGA vs Corsair PSU's (Concerning 'Hold-Up Time')

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Kaziel

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My Seasonic x760 has finally died after almost 3 years of acting strange, e.g. not powering back on after sleep or wiggling of power cable needed to spark it into life (literally heard sparks everytime I needed to do that). According to reviews, it was one of the best back when I bought it in 2012, but didn't pass the (iirc) 5 year warranty. So I want to try another brand this time around.

My rig at the moment is a P8Z68 Pro/GEN3, i5 2500k (OC'd to ~4.0+), and a EVGA 770 SC (OC'd).
I'm kinda on a budget and assume a 650w PSU will suffice. So I've narrowed it down to two brands but have some concerns after reading some information about new 'Hold-Up Time' tests by Aris, especially because I currently work in Malaysia where the power is unpredictable and I often get Brownouts and occasionally Blackouts.

EVGA: SuperNova 650 P2

Pros:
-Good reviews (Both J.Guru & T.Hardware)
-Good Customer Service reputation
-Good prices

Cons:
-Hold-Up Time issue with it being Super Flower made;
Aris's review was on the 25th of December 2015. The review states there are no problems with Hold-Up Time. Afaik, the new tests only started in 2016. So I'm worried that the review is outdated and the PSU has not gone through the newest tests to determine if it's all good in that department.

Corsair: RM650x

Pros:
-Good reviews (Both J.Guru & T.Hardware)
-No issues with 'Hold-Up Time' as it's not made by Super Flower

Cons:
-More expensive (being that EVGA's Platinum PSU is the same price as Corsair's Gold)
-Bad Customer Service reputation

Can anyone please help me out with my decision. Maybe a guarantee that the EVGA SuperNova 650 P2 has been through the new tests and passed with flying colours? I'd really like to give the EVGA Platinum PSU a try, but I'm really worried about all the talk about motherboards, CPU's and GPU's frying because the Super Flower PSU's can't handle Brownouts or Blackouts.
 
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turkey3_scratch
Those calculators are terrible (especially Cooler Master). They overexaggerate either to accomodate crappy PSUs or just so you spend more money on a higher-wattage PSU from that company. That system should probably fall ~400W in terms of gaming power consumption, it very well could be less, and that's with the overclocking. My head is usually a very good calculator but older hardware like your CPU and GPU I'm not as skilled at. The GTX 770 is typically a 230W GPU, overclocked probably will bring it around 260W. The CPU with that overclock, when gaming, probably another 100W. 360W. Then throw in motherboard and other tiny stuff it should add up to around 400W.

So there are two philosophies here. There are those who have hardware that...
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Kaziel

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First of all, thanks for the quick reply.

I checked out the review for the 750w P2, glad that it passed the test. But according to this thread (https://linustechtips.com/main/topic/585894-why-you-should-not-purchase-the-evga-g2-lineup-especially-in-homes-with-frequent-brownouts/#comment-7637135), the Super Flower Leadex Platinum 550W PSU also has the same problem.

Furthermore, as you said (and others), some G2 models are fine and others aren't. So I would assume that there's still the risk that the 650w P2 has this problem even though the 750w P2 has been deemed safe to use.
 
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turkey3_scratch

turkey3_scratch

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I actually made that LinusTechTips post a long time ago. You can always get the 550G2, that one should be safe and not drop the PWR_OK signal late based on strong evidence. See, there is no EVGA 550 P2, and using the Leadex isn't necessarily exact since EVGA can make some changes.
 
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Kaziel

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Ah I see. I think I may just take the risk on the EVGA 650 P2 then seeing as the Corsair RM650X has just gone up to $114 because of low stock (Amazon).

Now my final question would be, is 650 watts enough to power this:

-Asus P8Z68 Pro/Gen3
-i5 2500k (OC'd to ~4.0+) + Hyper 212 Plus
-EVGA GeForce GTX770 SuperClocked (OC'd)
-Corsair Vengeance White 8GB (2x4GB) DDR3
-Seagate Desktop SSHD 1.0TB (ST1000DX001)
-Western Digital Caviar Green 1.0TB (WD10EARX)
-4 x 120mm AF 120 (Blue LED) and 1 x 200mm (C.Master Led Fan)

I know, I know, old parts :)

I've used the C.Master and the other calculators. But don't know the exact numbers to put in when it comes to the Overclocking sections (I'm using my mac at the moment and can only remember the automatic Asus Turbo Boost OC number for the CPU which is somewhere around 4.0+).
 
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turkey3_scratch

turkey3_scratch

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Those calculators are terrible (especially Cooler Master). They overexaggerate either to accomodate crappy PSUs or just so you spend more money on a higher-wattage PSU from that company. That system should probably fall ~400W in terms of gaming power consumption, it very well could be less, and that's with the overclocking. My head is usually a very good calculator but older hardware like your CPU and GPU I'm not as skilled at. The GTX 770 is typically a 230W GPU, overclocked probably will bring it around 260W. The CPU with that overclock, when gaming, probably another 100W. 360W. Then throw in motherboard and other tiny stuff it should add up to around 400W.

So there are two philosophies here. There are those who have hardware that consumes about 400W they like to buy something like a 750W PSU, they prefer to run the PSU in about 50% load since it's most efficient in that territory so it's implied there is less waste heat and they could last longer. However, remember a quality 750W power supply costs a lot more than a quality 550W power supply. There are people like me who would be fine with a good 550W power supply then. Or your middle ground is perfectly fine also with 650W. So I think the options you are looking at are fine. A good 450W power supply should be fine even as long as overclocking doesn't go further.
 
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Kaziel

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Going for EVGA 650 P2.

Thanks for all the advice turkey3_scratch and take care :)
 
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