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PSU advice

post #1 of 9
Thread Starter 
Hi all

Looking for advice please on what size PSU for my build. I am looking at the Antec HCP 850 platinum if that will cover my needs. Not too fussed on price just want the best psu that's the right size wattage.
I have tried the power calculators but still unsure.
CPU and card/s will be overclocked and I like benching, water only.

I have
Asus P9X79
i7 3930K
2 X Saphire R9 290
2 X D5 pumps
32 X GT AP-15
1 SSD
1 HD
Edited by glnn_23 - 3/3/14 at 9:39pm
post #2 of 9
I am not sure about what is available in your area, but for what you mentioned, I would suggest the Cooler Master V1000. Should give you the headroom for benching and overclocking like you mentioned and be rock solid reliable and efficient.

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post #3 of 9
I agree with shlunky. You need to get a good 1000-watt PSU for that setup.
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post #4 of 9
No he does not need a 1000 watts even 750 watts could power that system
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post #5 of 9
Warning: Spoiler! (Click to show)
Quote:
Originally Posted by glnn_23 View Post

Hi all

Looking for advice please on what size PSU for my build. I am looking at the Antec HCP 850 platinum if that will cover my needs. Not too fussed on price just want the best psu that's the right size wattage.
I have tried the power calculators but still unsure.
CPU and card/s will be overclocked and I like benching, water only.

I have
Asus P9X79
i7 3930K
2 X Saphire R9 290
2 X D5 pumps
32 X GT AP-15
1 SSD
1 HD

A single R9-290 mildly OC'ed to 1075MHz consumes 300W on its own (Source).

Since you're custom cooling, If you like OC'ing to the maximum of what your system can handle, then yeah, a 1KW unit is a better alternative.
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post #6 of 9
Quote:
Originally Posted by shilka View Post

No he does not need a 1000 watts even 750 watts could power that system

Power it, yes. But he mentioned overclocking and benching. Having seen more than a couple of 780's that pull 300w+ when OC'd and knowing the 290 to consume more power is the reason I suggested a 1kw unit.

Quote:
Originally Posted by eXXon View Post

Warning: Spoiler! (Click to show)

A single R9-290 mildly OC'ed to 1075MHz consumes 300W on its own (Source).

Since you're custom cooling, If you like OC'ing to the maximum of what your system can handle, then yeah, a 1KW unit is a better alternative.

^^ This
That is how I interpret the term benchmarking.
My 4930k oc'd to 4.25ghz with the following system [32gb (4x8gb) 1.35v DDR3 1600, zxR sound card, gtx 780 idle, 3 ssd's. 1 hdd, AX850, x79 Sabertooth] drew 247w from the wall while at 100% load.
With his system he has listed, I could see everything minus the cards pulling 300w when OC'd, then for headroom, allowing 350w for each gpu. I understand this is simply pull from wall, not produced from the PSU, but I would feel more comfortable with some headroom personally.

Just my experience. GL to OP! smile.gif
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Corsair AX850 Lian Li PC-K62 
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CPUMotherboardGraphicsRAM
3770k Z77x-UD5H v1.1 GTX 560ti 1050/2100/1100 Crucial Ballistix 32g 1.35v 
Hard DriveOptical DriveOSMonitor
256g 840 Pro/ 250 Evo x2 Raid 0 / 2TB F4 Samsung BD +/- RW Win 7 x64 Ultimate LG IPS237L-BN 
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Corsair AX850 Lian Li PC-K62 
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post #7 of 9
A good 1000W may be a bit overkill, but I'd endorse the choice in this case. I normally would size a PSU as sensibly as possible with regards to what the computer will actually draw, but enthusiasts are like to change their builds all the time on a whim, and a good 1000W unit will run that setup very comfortably with plenty of room to grow as desired, so I think it's a good choice. The HCP-850 would be fine, too, though.
post #8 of 9
Quote:
Originally Posted by shlunky View Post

Power it, yes. But he mentioned overclocking and benching. Having seen more than a couple of 780's that pull 300w+ when OC'd and knowing the 290 to consume more power is the reason I suggested a 1kw unit.
^^ This
That is how I interpret the term benchmarking.
My 4930k oc'd to 4.25ghz with the following system [32gb (4x8gb) 1.35v DDR3 1600, zxR sound card, gtx 780 idle, 3 ssd's. 1 hdd, AX850, x79 Sabertooth] drew 247w from the wall while at 100% load.
With his system he has listed, I could see everything minus the cards pulling 300w when OC'd, then for headroom, allowing 350w for each gpu. I understand this is simply pull from wall, not produced from the PSU, but I would feel more comfortable with some headroom personally.

Just my experience. GL to OP! smile.gif
§

Overclocking and overvolting is not the same thing
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Seravee
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CPUMotherboardGraphicsRAM
Intel Core I7 6850K Gigabyte X99 Ultra Gaming EVGA GTX 1080 FTW2 Kingston HyperX DDR4 Savage 3000 MHz 
Hard DriveHard DriveHard DriveHard Drive
Samsung 840 Evo WD Green WD60EZRX  WD Red WD80EFZX 8TB  Seagate Ironwolf Pro 10 TB 
Optical DriveCoolingCoolingOS
LG CH12NS30 x5 Noctua NF-A14 FLX Noctua NH-D15S Windows 7 64 Bit 
MonitorMonitorKeyboardPower
Asus PG279Q LG 49UH750V 4K LED TV Corsair Gaming Strafe RGB EVGA SuperNova G2 750 watt 
CaseMouseMouse PadAudio
Phanteks Enthoo Luxe Roccat Kone EMP Roccat Sense Metor Sennheiser HD 598 
AudioAudioAudioAudio
Onkyo TX NR646  Harman Kardon HKTS 60 Dali Opticon Vokal x2 Dali Opticon 2 
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x2 Dali Opticon 1 CableMod E series PSU cable set CableMod LED Strips 
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post #9 of 9
Thread Starter 
Thanks for all your input guys, much appreciated.
I'll look into the Cooler Master V1000 as it is available here.
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