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Would the XFX 550W be enough for a 4670k and MSI R9 280X Gaming 3G?

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October 21, 2013 2:19:43 PM

The rest of my components:

Cooler: 212 EVO
HDD: Caviar Blue 1TB 3.5" 7200RPM
Case: Z11 Plus
Optical drive: Lite-On iHAS124-04 DVD/CD Writer
RAM: G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-1600
Motherboard: Z87-G43

Also what is the cheapest PSU I could get?

More about : xfx 550w 4670k msi 280x gaming

October 21, 2013 2:24:46 PM

yep 550w would just about cover it, you wont really be able to upgrade later with it tho, also dont just go for a cheap psu you need a good quality psu like a corsair one
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October 21, 2013 2:26:32 PM

How much power would all my components use? And would I be able to OC at all?
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October 21, 2013 2:29:21 PM

zMartin said:
How much power would all my components use? And would I be able to OC at all?


like i said 550w would only just about cover the power needs for this build so no you wont really be able to overclock, it might be worth while to buy a bigger psu so you can OC and upgrade if you need to in the future
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October 21, 2013 2:32:11 PM

Your PSU is the last component you should cheap out on. That one is enough, for a mid range GPU along with it. But I would recommend something like a 750w corsair HX or TX series, they sit around 100$ and will be more than enough for OC and that single GPU.
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October 21, 2013 3:00:04 PM

At stock with the system under full load you'll draw at most 350w DC. This means that the XFX 550w (as long as it's this one we're talking about) will give you all the overclocking headroom you could want.
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October 21, 2013 3:17:12 PM

bignastyid said:
The XFX 550w is a good PSU, but it is not Haswell certified. It will work but you will have to disable C6 and C7 sleep states.
http://techreport.com/review/24897/the-big-haswell-psu-...


What exactly does that mean? Do you know of a PSU as good as the XFX that is Haswell certified?
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October 21, 2013 4:26:54 PM

zMartin said:
bignastyid said:
The XFX 550w is a good PSU, but it is not Haswell certified. It will work but you will have to disable C6 and C7 sleep states.
http://techreport.com/review/24897/the-big-haswell-psu-...


What exactly does that mean? Do you know of a PSU as good as the XFX that is Haswell certified?


Here's a quote from the link in my last post.
"According to Intel's presentation at IDF, the new Haswell processors enter a sleep state called C7 that can drop processor power usage as low as 0.05A. Even if the sleeping CPU is the only load on the +12V rail, most power supplies can handle a load this low. The potential problem comes up when there is still a substantial load on the power supply's non-primary rails (the +3.3V and +5V). If the load on these non-primary rails are above a certain threshold (which varies by PSU), the +12V can go out of spec (voltages greater than +12.6V). If the +12V is out of spec when the motherboard comes out of the sleep state, the PSU's protection may prevent the PSU from running and will cause the power supply to "latch off". This will require the user to cycle the power on their power supply using the power switch on the back of the unit."

C7 can be disabled in the motherboards bios, and is disabled by default on most desktops.

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October 22, 2013 12:56:28 PM

The best one I could find under £60 was the GS600W http://www.amazon.co.uk/Corsair-Gaming-Series-Edition-B... what do you think of it?

Here are some Haswell ready PSUs. is that GS600W that I sent the link to one of these?
GS (Current V3): GS600, GS700, GS800
GS (Legacy V1): GS600, GS700, GS800
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