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New PSU needed help
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  (#1)
Cry
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Videocard: AMD 290 CF / WCed
Processor: i5 2500k @ 4.6Ghz / WCed
Mainboard: Asus Formula V
Memory: 8GB Corsair Dominator
Soundcard: Onboard & Headset
PSU: Corsair AX860
Exclamation New PSU needed help - 12-09-2013, 21:16 | posts: 585 | Location: UK

Just bought 2x 290's which are arriving tomorrow but realized when I got home that I only have a corsair HX750 not a 850 like I thought!

I've check with most retailers in UK for somthing like a seasonic 1000w etc but nothing in stock! The highest PSU in stock is the Corsair AX860, it this worth buying or shall I just hang on for a 1000w?

Will the HX750 manage the 2x 290 for the time being?

I'm running, 2500k @ 4.6Ghz, D5 pump, 1x 7200 HDD, 1x 256SSD
   
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Deathchild
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Videocard: HD7950CFX+Qnix2710
Processor: 3770K@4.8GHz delid HT off
Mainboard: Gigabyte Z77X D3H 1.1
Memory: C Vengeance 8GB 1866
Soundcard: VIA VT2021
PSU: Seasonic Platinum 760W
Default 12-09-2013, 21:24 | posts: 1,824 | Location: Estonia

Hmmmm.. dunno it's a high quality unit so it's rated output should be higher than what it is.. if you run the 290s stock maybe you'll be fine? That 860w should do the job though.
   
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Darkest
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Videocard: HD7950
Processor: i5 3570k
Mainboard: Gigabyte Z77 D3H
Memory: G-Skill Ripjaws 8gb 1600
Soundcard: Aune T1 + HD650/DT990 Pro
PSU: OCZ ZS 550w
Default 12-09-2013, 21:41 | posts: 6,698

A good 850w unit should cover it if you've no joy with your current. If you really want a more powerful PSU however, OCUK have a few. As does Ebuyer. Here's a store that's local to me with a so-so deal on also: Coolermaster Silent Pro M2 1000W. Worth looking into if you find yourself needing/wanting the extra power.
   
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Cry
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Videocard: AMD 290 CF / WCed
Processor: i5 2500k @ 4.6Ghz / WCed
Mainboard: Asus Formula V
Memory: 8GB Corsair Dominator
Soundcard: Onboard & Headset
PSU: Corsair AX860
Default 12-09-2013, 21:49 | posts: 585 | Location: UK

I've seen the ax860 at ccl which is 30mins away from me. Ebuyer dont seem to have many of the good models and I find OCuk a tad pricey.

Just seems a waste to buy a 860watt when a 1000watt is only a few quid more yet outta stock!
   
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Pill Monster
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Videocard: 7950 Vapor-X 1175/1550
Processor: AMD FX-8320 @4.8
Mainboard: ASUS Sabertooth 990FX R2
Memory: 8GB Kingston HyperX 2400
Soundcard: Audigy 2 Platinum Ex 5.1
PSU: AcBel M8 750
Default 12-09-2013, 21:57 | posts: 23,465 | Location: NZ

So then wait....
   
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Cry
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Videocard: AMD 290 CF / WCed
Processor: i5 2500k @ 4.6Ghz / WCed
Mainboard: Asus Formula V
Memory: 8GB Corsair Dominator
Soundcard: Onboard & Headset
PSU: Corsair AX860
Default 12-12-2013, 21:41 | posts: 585 | Location: UK

Hate waiting but seems that will be the way, the HX 750 seems to be holding up well atm.
   
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eclap
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Videocard: HD7950 CFX + Qnix QX2710
Processor: i5 2500k @4.5 1.2v
Mainboard: Asus P8Z77-V Pro
Memory: 8GB G-Skill RipjawsX 1600
Soundcard: SB Z/Aune T1/AD700/DT880
PSU: XFX Black 750W 80+ Gold
Default 12-12-2013, 21:54 | posts: 24,339 | Location: Hampshire UK

290x cfx running on a 750 psu should be fine for now, just don't push them too hard until you get your upgrade.
   
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Rich_Guy
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Videocard: MSi Gaming 290X 1080/1250
Processor: i7 920 D0
Mainboard: Biostar Tpower x58
Memory: 6Gb Corsair DDR3
Soundcard: Xonar DX + Logi.X-530's
PSU: Corsair AX860w
Default 12-12-2013, 22:28 | posts: 8,168 | Location: UK

The Corsair AX860w is a cracking PSU, i bought one just the other week

Last edited by Rich_Guy; 12-12-2013 at 22:30.
   
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clawhamer
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Videocard: EVGA 780 Classified
Processor: Intel i7 4770K 4.4GHz
Mainboard: ASUS M6H Z87
Memory: Corsair Pt. 8GB 1866MHz
Soundcard: SupremeFX
PSU: Corsair AX850
Default 12-12-2013, 22:41 | posts: 1,879 | Location: canada

Personally I'd take the ax860 over those other 1000w... the 850 can handle this setup with ease.
   
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Pill Monster
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Videocard: 7950 Vapor-X 1175/1550
Processor: AMD FX-8320 @4.8
Mainboard: ASUS Sabertooth 990FX R2
Memory: 8GB Kingston HyperX 2400
Soundcard: Audigy 2 Platinum Ex 5.1
PSU: AcBel M8 750
Default 12-14-2013, 07:47 | posts: 23,465 | Location: NZ

Quote:
Originally Posted by clawhamer View Post
Personally I'd take the ax860 over those other 1000w... the 850 can handle this setup with ease.
Yeah I agree the AX860 is an awesome PSU but the Seasonic Platinum 1000W has a great review on Johnny Guru. http://www.jonnyguru.com/modules.php...tory5&reid=264

Assuming it is actually the Platinum series OP is referring too....if both PSU's are a similar price I know which one I'd take. Just my 2c.

Ofc if it's not the Platinum well that's a whole different story...


Last edited by Pill Monster; 12-14-2013 at 07:52.
   
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thatguy91
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Videocard: HIS R9-280x Iceq X2 Turbo
Processor: i5-3570K
Mainboard: Asrock Z77 Extreme6
Memory: DDR3-2400 2x8GB
Soundcard: ALC898 + Microlab FC-730
PSU: Enermax Platimax 750W
Default 12-14-2013, 08:05 | posts: 3,492 | Location: Australia

Using one of the online PSU calculator (http://www.extreme.outervision.com/PSUEngine), and entering things like 3 hard drives, 1 SSD, a couple of fans, 4 USB devices for the stuff I didn't know to enter, it came out at:

Minimum: 801 W
Recommended: 851 W

That is at 90 percent total system load (meaning everything is running at 90 percent load, like the GPU's, CPU etc, as well as attached devices). Of course, could also mean the CPU is at 100 percent, GPU at 82 percent and so on.

With a 10 percent capacitor ageing, you're out to 881 W and 931 W.

If you completely bastardise the system to 100 percent, no capacitor ageing, it is 890 W minimum, 940 W recommended.

A bastardised sysem with 10 percent capacitor ageing, you're looking at 979 W minimum, 1029 W recommended.

So, an 860 W PSU should do, because you won't be bastardising the system lol. If you push the system hard though with the 750 W PSU, it will really be working hard which means more heat, capacitors age quicker, which reduce their efficiency...

On the other hand, the 1000 W PSU you were looking at gives you a comfortable headroom in the future, and means in almost all cases the PSU isn't working hard. Remember at the moment you probably won't be maxing out your GPU's with games, but never know what the future holds.
   
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Cry
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Videocard: AMD 290 CF / WCed
Processor: i5 2500k @ 4.6Ghz / WCed
Mainboard: Asus Formula V
Memory: 8GB Corsair Dominator
Soundcard: Onboard & Headset
PSU: Corsair AX860
Default 12-14-2013, 08:37 | posts: 585 | Location: UK

GPU's are prob flat out as i'm running 1600p with BF4 at ultra. On a sidenote some of the textures in BF4 are crap at 1600p!

I've been looking at the seasonic plat and gold along with the coolermaster v1000.
   
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thatguy91
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Videocard: HIS R9-280x Iceq X2 Turbo
Processor: i5-3570K
Mainboard: Asrock Z77 Extreme6
Memory: DDR3-2400 2x8GB
Soundcard: ALC898 + Microlab FC-730
PSU: Enermax Platimax 750W
Default 12-14-2013, 09:05 | posts: 3,492 | Location: Australia

That 100 percent (the system bastardisation ) means you are running every component at 100 percent, including drives etc. The majority of the power used though would be the CPU (which I had entered as your 4.6 GHz overclock) and the GPU's, so it would probably be safer with a 1000 W PSU.
   
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  (#14)
eclap
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Videocard: HD7950 CFX + Qnix QX2710
Processor: i5 2500k @4.5 1.2v
Mainboard: Asus P8Z77-V Pro
Memory: 8GB G-Skill RipjawsX 1600
Soundcard: SB Z/Aune T1/AD700/DT880
PSU: XFX Black 750W 80+ Gold
Default 12-14-2013, 11:24 | posts: 24,339 | Location: Hampshire UK

I personally wouldn't pay 160 for the AX860i when you can get good 850W Corsair/Seasonic/XFX etc units at 80+ gold for over 40 less. Hell, the Corsair RM850 was on sale for 99.99 a week or so ago, that's some 60 less than the AX860i
   
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Cry
Master Guru
 
Videocard: AMD 290 CF / WCed
Processor: i5 2500k @ 4.6Ghz / WCed
Mainboard: Asus Formula V
Memory: 8GB Corsair Dominator
Soundcard: Onboard & Headset
PSU: Corsair AX860
Default 12-14-2013, 11:38 | posts: 585 | Location: UK

They do a 860 non i... I wouldn't pay extra for the i version.
   
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eclap
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Videocard: HD7950 CFX + Qnix QX2710
Processor: i5 2500k @4.5 1.2v
Mainboard: Asus P8Z77-V Pro
Memory: 8GB G-Skill RipjawsX 1600
Soundcard: SB Z/Aune T1/AD700/DT880
PSU: XFX Black 750W 80+ Gold
Default 12-14-2013, 12:01 | posts: 24,339 | Location: Hampshire UK

how much is the normal 860?
   
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clawhamer
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Videocard: EVGA 780 Classified
Processor: Intel i7 4770K 4.4GHz
Mainboard: ASUS M6H Z87
Memory: Corsair Pt. 8GB 1866MHz
Soundcard: SupremeFX
PSU: Corsair AX850
Default 12-14-2013, 12:14 | posts: 1,879 | Location: canada

Quote:
Originally Posted by Cry View Post
They do a 860 non i... I wouldn't pay extra for the i version.
Yeah, neither would I.

Quote:
Originally Posted by Pill Monster View Post
Assuming it is actually the Platinum series OP is referring too....if both PSU's are a similar price I know which one I'd take. Just my 2c.
Also have to agree with the Platinum if they are around the same price, not sure for the OP but around here the difference is about $70 can.

Cry, what are the prices of the units you're looking at?
   
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  (#18)
Cry
Master Guru
 
Videocard: AMD 290 CF / WCed
Processor: i5 2500k @ 4.6Ghz / WCed
Mainboard: Asus Formula V
Memory: 8GB Corsair Dominator
Soundcard: Onboard & Headset
PSU: Corsair AX860
Default 12-14-2013, 12:27 | posts: 585 | Location: UK

normal 860 is 142, Seasonic is 193. Price doesn't really bother me so I'll be going for the seasonic soon as it comes into stock somewhere.
   
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clawhamer
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Videocard: EVGA 780 Classified
Processor: Intel i7 4770K 4.4GHz
Mainboard: ASUS M6H Z87
Memory: Corsair Pt. 8GB 1866MHz
Soundcard: SupremeFX
PSU: Corsair AX850
Default 12-14-2013, 13:05 | posts: 1,879 | Location: canada

Sounds good, no point not to if price isn't an issue.
   
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  (#20)
eclap
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Videocard: HD7950 CFX + Qnix QX2710
Processor: i5 2500k @4.5 1.2v
Mainboard: Asus P8Z77-V Pro
Memory: 8GB G-Skill RipjawsX 1600
Soundcard: SB Z/Aune T1/AD700/DT880
PSU: XFX Black 750W 80+ Gold
Default 12-14-2013, 13:24 | posts: 24,339 | Location: Hampshire UK

Platinum costs a lot more than gold. Is the normal 860 gold? If so, avoid it, get yourself a Seasonic oem gold unit like xfx 850w for around 115.
   
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  (#21)
ground_zero298
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Videocard: integrated
Processor: i7
Mainboard:
Memory: Mushkin Essential 16gb
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PSU: Apple
Default 12-14-2013, 13:48 | posts: 554 | Location: michigan

I know from testing reviews the seasonic X850 golds are listed as 850 but in testing was capable of 1k stable.. 1 of the reasons I bought mine.
   
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  (#22)
Cry
Master Guru
 
Videocard: AMD 290 CF / WCed
Processor: i5 2500k @ 4.6Ghz / WCed
Mainboard: Asus Formula V
Memory: 8GB Corsair Dominator
Soundcard: Onboard & Headset
PSU: Corsair AX860
Default 12-14-2013, 13:50 | posts: 585 | Location: UK

http://www.cclonline.com/product/106...-Unit/PSU0529/ Is the corsair one, platinum.

Seasonic do an x series which is 1005w which is gold rated rather than plat.
   
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  (#23)
eclap
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Videocard: HD7950 CFX + Qnix QX2710
Processor: i5 2500k @4.5 1.2v
Mainboard: Asus P8Z77-V Pro
Memory: 8GB G-Skill RipjawsX 1600
Soundcard: SB Z/Aune T1/AD700/DT880
PSU: XFX Black 750W 80+ Gold
Default 12-14-2013, 16:37 | posts: 24,339 | Location: Hampshire UK

That's not too bad. Up to you if you really want plat that's a decent deal. You can save 30 if you go gold though.
   
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Deathchild
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Videocard: HD7950CFX+Qnix2710
Processor: 3770K@4.8GHz delid HT off
Mainboard: Gigabyte Z77X D3H 1.1
Memory: C Vengeance 8GB 1866
Soundcard: VIA VT2021
PSU: Seasonic Platinum 760W
Default 12-14-2013, 17:53 | posts: 1,824 | Location: Estonia

Yo guys I got a question, don't mean to derail the thread here though but, there's a 3930k for sale at 300 (if I sorta "preorder" it, as I can only pay the dude next month) .. now.. the thing is, I can sell my old 3570k, would get like 150-180 for it.. so

A 3930k for approx 130 more euros - is it worth it?

That means I gotta buy a 2011 board too, for 180 .. I'd sell my old board for 80-90 then...

So.. all in all a ~230 euro upgrade.

(lol I just checked, otherwise the cpu costs 490 o,O)

Last edited by Deathchild; 12-14-2013 at 17:59.
   
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eclap
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Videocard: HD7950 CFX + Qnix QX2710
Processor: i5 2500k @4.5 1.2v
Mainboard: Asus P8Z77-V Pro
Memory: 8GB G-Skill RipjawsX 1600
Soundcard: SB Z/Aune T1/AD700/DT880
PSU: XFX Black 750W 80+ Gold
Default 12-14-2013, 17:58 | posts: 24,339 | Location: Hampshire UK

I'd rather have another 7950 in that rig tbh
   
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