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Power supply help needed

13 posts · originally from https://geek.digit.in/community/threads/power-supply-help-needed.138433/

slashragnarok
slashragnarok Original post #1
Mar 24, 2011 at 7:50 PM
What PSU is sufficient for the following,

Sandy Bridge i5 2500k overclocked to 5 GHz
2 sticks of ddr3 ram
Cm Hyper 212 cpu cooler
NZXT Tempest evo with 6 fans
1 sound card, pci
2 gtx 560 in sli
asus p8p67 pro mobo
1tb 7200 rpm HDD
250gb (dont know speed but lower than 7200 rpm) HDD
LG DVD writer
saswat23
saswat23 #2
Mar 24, 2011 at 8:08 PM
Corsair VX 550 at 4.5k

Have you purchased the rig already???
If so, then plz post the prices too.
MegaMind
MegaMind #3
Mar 24, 2011 at 8:17 PM
Corsair TX750 - 7K

@SASWAT vx550 cannot handle sli of 560ti
slashragnarok
slashragnarok #4
Mar 24, 2011 at 8:17 PM
Now I'm confused between 550 and 750..

BTW SMC lists it at Rs 6750..

Also tell me if a 550 is sufficient for one card, will a second one draw 200W of power??
MegaMind
MegaMind #5
Mar 24, 2011 at 8:22 PM
Since the OP wants to OC, 750W wil be safe

Not less than TX750
modder
modder #6
Mar 24, 2011 at 9:11 PM
2 gtx 560 in sli
Click to expand...
GeForce GTX 560 in SLi - 40A and a 650W PSU minimum

Sandy Bridge i5 2500k overclocked to 5 GHz
Click to expand...

650W + 100W headroom for OC/future upgrades/cool 'n quiet operation

= 750W (Minimum)

Component | Make & Model | Price (est.)
PSU Non-modular, Single +12V Rail | Corsair TX750 | Rs. 6,200
PSU Non-modular, Single +12V Rail | Corsair TX750 V2 | Rs. 7,500
PSU Modular, Single +12V Rail | Corsair HX750 | Rs. 8,500
PSU Fully Modular, Single +12V Rail | Corsair AX750 | Rs. 9,800

If possible, also invest in a good quality UPS.

Hope this helps :)

Its great to be back! Long live the new 'n improved TDF!
MegaMind
MegaMind #7
Mar 24, 2011 at 11:29 PM
Component | Ampere | Make & Model | Efficiency | Price
combined +12V Rail | 60 | Corsair TX750 | 80+ | Rs. 6,700
combined +12V Rail | 62 | Seasonic S12D 750 | 80+ silver | Rs. 6,500

so go for seasonic...
coderunknown
coderunknown #8
Mar 24, 2011 at 11:29 PM
get the 3rd from the list provided by modder. or the 2nd if you are short on budget.
MegaMind
MegaMind #9
Mar 24, 2011 at 11:47 PM
Seasonic S12D 750 = Corsair HX750
Prices - 6.5K | 8.5K

So no point in getting HX750...

HX750
*www.excaliberpc.com/images/resources/599220/48744d406262435d81cc889ad5639d06.jpg

S12D 750
*komputer4sale.com/image/data/POWER_SUPPLY/Seasonic/S12D-spec-750w.jpg
Bond_Killer
Bond_Killer #10
Mar 25, 2011 at 11:28 AM
Little more future proof step.

Seasonic 850W AT 80+ Silver - 6.7k

*techshop.in/store/seasonic-850w-ss...ion-power-supply-buy-online-india-p-6957.html

Not sure what will be the efficiency but its silver certified.
MegaMind
MegaMind #11
Mar 25, 2011 at 12:21 PM
What is 80 PLUS certified:

80 PLUS Certification | 230V Internal Redundant % of Rated Load | 20% 50% 100%
80 PLUS | N/A
80 PLUS Bronze | 81% 85% 81%
80 PLUS Silver | 85% 89% 85%
80 PLUS Gold | 88% 92% 88%
80 PLUS Platinum | 90% 94% 91%

Both Seasonic S12D 750 & Corsair HX750 are 80+silver
asingh
asingh #12
Mar 25, 2011 at 12:27 PM
^^
Efficiency tested at certain conditions.
slashragnarok
slashragnarok #13
Mar 26, 2011 at 10:56 AM
I'm a bit surprised that the 850W PSU is only about a 100 bucks more than the 750W PSU. Both are 80+ Silver certified by I noticed that one is a S12D model while the other is SS-AT model. What's the difference?