Seasonic S12II 520w doubts

Not being Haswell ready means the PC will reboot when you put it to sleep. I don't use sleep with my PC so I couldn't care less. If you do AND you have a Haswell or newer CPU then you need to care.

As for rails it doesn't matter. Single or more, at this power level it doesn't make a difference so just ignore that.

Make sure it's enabled in the bios, then make sure you aren't using always on/performance in the power settings of windows.

Or put it to sleep. If it worked it's working.

What do you mean by power up?

That's how sleep works. So it should be working just fine. When you said power up I wanted to make sure it was starting in windows and not from the bios, etc like when you first turn it on.

But the pc shouldn't connect with just a simple touch on the keyboard

Click to expand...

Why not? It should jump right back to where ever you left it when you wake it up.

I have to say first that I´m not an expert in this matter, however I can tell you about my experience with my system and that I´m a little maniac when it´s about power consumption, I have a PC with a G3258 Processor, (haswell refresh) working with a PSU Corsair CX 430, wich is not Haswell ready, ( or at least in may 2014 when I bought it , it wasn´t), I have never touched the BIOS concerning power options with this system (or any other).

I have a Kill A Watt wich is pretty handy and use it a lot.

I have measured the power consumption of my all three systems I own pretty much in every situation I use them, (well, with the exception of my A8 7600 during sleep).

My G3258 Haswell refresh processor (using Ubuntu operating system) draws a whopping amount of 0.01 watts, sometimes shows 0.00 watts during sleep, and when I wake it up, it starts right where I left it, no reboot, nothing like that, just with a touch of any key of my keybard. I put it to sleep, during Sundays, the day I´m home all day, and I´m randomly using my pc, at least 3 times it sleeps during Sundays.

My other system with a N3150 braswell processor, wich is designed for low power draw working with a SEASONIC S12II - 350 PSU shows 0.00 watts during sleep, also Ubuntu S.O.

and with those processors I have NEVER had any problems waking them up from sleep, NOT EVEN ONCE.

As you can see, eve if those PSU are not "haswell ready" they still have a incredibly low power draw during sleep, and, at least so far with my systems never had any problem with that, still, read the MoBo´s user manual to see how the "sleep mode" works.

Sorry, but I dont have any information regarding those energy saving programs related to the CPU.

Again, tested the energy consumption of my system with Pentium G3258 with and without the GPU, without the GPU it draws 35 Watts average idle, and with the GPU installed (an EVGA GTX 750ti FTW) the power consumption idle was around 43 watts, so as you can see this Graphics card increases the energy draw IDLE by roughly 8 watts, web browsing and office work (Excel for example) it has an average of 45-50 watts (with GPU installed) and during gaming the system draws between 85 and 110 watts depending of the game, now, a couple of months ago I replaced the GTX 750ti with a GTX 1050ti and the power consumption is roughly the same, however I haven't cheked que power consumption in idle, but I believe it will be similar to the one of the GTX 750ti.

It all depends on your system, the processor, the GPU, the motherboard, the PSU and even the Hard disk drive and also wich type of use you give to the system, its no the same using your pc for web browsing and Excel or Word files to video editing and video games.

If you do the math, suposing that you use the PC (wich, for exmaple purposes is identical to my system) for, lets say, 4 hours a day, every day of the year:
2 hours for web browsing and Office work, and 2 hours of gaming, thats 100 watts + 200 watts = 300 watts of daily use, times 30 days every month = 9,000 watts or, 9 kilowatts, wich normally is the measure of the energy charges the electric companies have, and lets say the price of each 1 Kw (1,000 watts) is 1 US dollar, so that PC will cost you 9 US dollar montly in electricity bill. AND I'M NOT CONSIDERING THE MONITOR OR TV YOU USE WITH THE PC.

If you want to save those 8 watts (In this example) you will only save 480 watts montly for the 2 hours you dont use the GPU, an it will help you saving 0.48 US dollars monthly

Also if you can use a CPU like the one I have (Celeron N3150) it only draws 14 watts the entire system, and some time in "heavy" work it reaches up to 19 watts, but is a lot slower, so depends a lot of the type of use you are going to give to you PC.

You should know how much the price of 1 Kw (1,000 watts) is in your country, and having a device like KILL A WATT or similar is a huge help determinig energy consumption.

Hope it helps


Any questions? just ask, if I can help you, I will

Thanks for the info tlalotoani. I was going to say I wouldn't worry about idle/desktop use with a GPU. From measurements I've seen in reviews it's only around 10W and your info agrees. 10W isn't that much and I doubt AMD/Nvidia could do better.

As for not waking on keypress, make sure that's turned on in windows and the bios. I've disabled it before due to small kids/cats.

Edit: Forgot to mention that you don't need to worry about haswell ready.

http://vr-zone.com/articles/is-your-power-supply-ready-for-haswell/19848.html

Older or bargain basement power supply units may be unable to achieve this, and might become unstable or trigger a UVP/OVP shutdown once the system enters the C6/C7 power states.

Click to expand...

This means as long as you press something and end up in windows and not boot back up you are fine. From what you've told me already you are worried about nothing.

Not Haswell-ready means usually that they are group regulated and don't come with Dc-Dc converters (at least any PSU that is Haswell-ready has DC-DC converters and the lines from Seasonic/XFX that are not do not)

However just because they're not Haswell-ready doesn't mean they immediately shut down.
There are several not officially Haswell-ready supplies that actually work with the Haswell sleep states and I think the XFX TS is one of them (while the TS Gold is Haswell-ready, might have just been an overlook by your seller)

Concerning the Corsair CX430:
Usually if you got a halfway decent motherboard with a good BIOS it should disable the sleep states by default if it's not compatible.
But best way to find out if the PSU does support it is to enable them manually.
Also many motherboards by now implement a dummy load mode to prevent shut downs.

However power savings are negligible.
We're talking about less than 10W/h

Furthermore with SSDs I find sleep modes kind of redundant unless you your computer is connected to your works VPN and you need to access it every 2 hours for home.office tasks while doing the real work on your main computer.
A SSD+fast boot boots with similar speed as the sleep mode while saving even more energy