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Voltage regulation or 80 Plus Certification

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October 10, 2011 1:23:31 PM

Hi guys,

very important question. I'm about to buy a new PSU and obvioisly I want to buy the best but not sure what should I pay more attention on 80 plus cert or voltage regulation. I've read so many discussions about this and paople always talk about voltage regulation more than anythiong else when It comes to PSUs. I picked Enermax Platimax 1200W 80PLUS Platinum Cert PSu but after reading reviews I'm not that impressed.

Please share you opinion on this subject and maybe post what you've got/experience etc

Many thanks for your help!
a c 276 ) Power supply
October 10, 2011 2:08:43 PM

Above basic 80+ certification higher levels dont necessarily get you that much, and the price premium between a gold and platinum unit is much more than the amount of energy saved with the platinum unit so its often better to pick a good silver unit than to pay a ton for a platinum unit.

The platimax, while a large high efficiency unit, isn't what i would consider a "great" unit, since you can pick up something like the Corsair AX 1200 for less which is a very good unit, but slightly less efficient.
a b ) Power supply
October 10, 2011 3:13:53 PM

i would agree. to better help you though, we need to know system specs on your hardware. 1200W is a TON of power. What are you building? 80+ cert is enough, im a silver junkie, but thats really just preference. If you can list some system hardware like cpu, hdd/ssd, cd drives, gpu, fans, etc, we can help you get a psu that will be suited for your needs as well as great performance.
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a c 104 ) Power supply
October 10, 2011 3:15:58 PM

Edited
a b ) Power supply
October 10, 2011 3:19:28 PM




Are we really going to start spamming "solve all" threads without giving personal relevance to the OP like some others on here? I know your are smarter than that. please, if you aren't going to give personal help on threads, dont even bother. let them find the stickies themselves.
October 10, 2011 3:35:31 PM

casualbuilder said:
i would agree. to better help you though, we need to know system specs on your hardware. 1200W is a TON of power. What are you building? 80+ cert is enough, im a silver junkie, but thats really just preference. If you can list some system hardware like cpu, hdd/ssd, cd drives, gpu, fans, etc, we can help you get a psu that will be suited for your needs as well as great performance.


Thanks for the reply!
My specs are:
Core 2 Due E8500 @ 4.4Ghz with Noctua NH-D14 Cooler
4GB Corsair Dominator GT DDR2 @ 1100Mhz
MSI 580 Lightning
2 x 40GB SSD in RAID 0
1TB Samsung Spinpoint F3
Antec 1200 Case
Optical Drive

This is it. I think maybe a good 850W to 1000W would do the job. BUT PSUs are most efficient at 50% load so I want to find that sweet spot if poss.

a b ) Power supply
October 10, 2011 3:55:45 PM

OK! Awesome. Here are some PSU's i know would be plenty, and still not break the bank, all under $200, most around $160.

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

They will be reliable, and give you the juice you need. remember, you are only needing roughtly 500W max tdp...so even with an 850W gold or silver, you are running at 65%. Not a heavy load for a good quality psu, and really shouldn't take a noticeable amount of life off of it. I ran an old Rosewill that was barely 80+ for almost 7 years continuously...dont think i paid more than $40 for it, so imagine what a good psu will get you today. The OCZ is probably my favorite in the list at 1000W, but the Corsair HX850 is a close 2nd, and both will give you wiggle room for upgrades. However, if you are going with the idea you will SLI 580's, 1000W or greater would be recommended. Hope this helps.
October 10, 2011 4:02:11 PM

casualbuilder said:
OK! Awesome. Here are some PSU's i know would be plenty, and still not break the bank, all under $200, most around $160.

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

They will be reliable, and give you the juice you need. remember, you are only needing roughtly 500W max tdp...so even with an 850W gold or silver, you are running at 65%. Not a heavy load for a good quality psu, and really shouldn't take a noticeable amount of life off of it. I ran an old Rosewill that was barely 80+ for almost 7 years continuously...dont think i paid more than $40 for it, so imagine what a good psu will get you today. The OCZ is probably my favorite in the list at 1000W, but the Corsair HX850 is a close 2nd, and both will give you wiggle room for upgrades. However, if you are going with the idea you will SLI 580's, 1000W or greater would be recommended. Hope this helps.


Thank you so mcuh for the quick reply!

I'll have to read reviews about the, but the corsair looks promising.
On the 580 SLI upgrade.......I think I have to upgrade my CPU+motherboard+RAM first otherwise no point doing it ;) 

Thanks again!
a c 276 ) Power supply
October 10, 2011 11:38:37 PM

While it is true that PSUs are most efficient around 50% load, with units that are bronze or higher the difference between max and min efficiency between 20% load and 100% load is usually only about 3%, hardly worth spending an extra $80 on the extra headroom to run at 50% load when an 850W unit can run 2 GTX 580s.
a b ) Power supply
October 11, 2011 10:19:14 AM

^ +1

Best bang for your buck is an 80+ Bronze or Silver at rebate price. The HX series from Corsair is a great buy, and the XFX psu is a great price for what you get.

Great point hunter315, thats a pretty accurate %.
!