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MLG JFK

In need of massive PSU

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Posted · Original PosterOP

Hey all. I'm currently in a dilemma. A good friend of mine and myself are working on a big project to make an massive rig.  The specs are 2x Xeon e5 4650 v2's , 32gb of Ecc ram @ 1866 Mhz,  2 Cpu water coolers,  4 gtx 1080ti SC2 Hybrids oc'ed (2 gpu's per person), a gtx 970 boot card,  4 hard drives, 2 ssd's, 20 rgb fans, 12 rgb strips for 2 hue +'s , fan moniters, blue ray drives, and 2 keyboards and mice. The total wattage at peak on the psu calculator came out to 1878 watts recommended. with a peak pull of 1828... We both own a Rosewill 1600 watt psu, so were were contemplating using 2 of them;however, we're not so sure how that would work.  What should we do? I know that Super Flower makes a 2000w psu but we live in the US and we don't know how to get one. and suggestions would be appreciated.

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You can short the main ATX cable in order to use 2 PSU in one system (assuming that the mobo only has 1 main ATX connector). I'm not sure how to do it exactly, but there are tutorials in the internet.

 

Of course you will need a case that can hold 2 PSUs.


CPU: i5 4460 @3.2GHz Motherboard: Asus H81M-PLUS RAM: Kingston 8GB + 4GB DDR3 @1600MHz GPU: Asus GTX 1070 8GB Dual Series Case: 2themax ATX case (black and red) HDD: Seagate Barracuda 7200RPM 500GB, Toshiba 1TB 7.2k RPM, WD AV 7200RPM 320GB SSD: Transcend SSD370 128GB PSU: Seasonic X-660 80+ Gold Monitor: LG 22MP55 22" 1080p 60Hz Keyboard: Steelseries Apex M260 Kailh Blue switches

 

Dumped parts:

CPU: Intel Core 2 Quad Q9400 2.66GHz

Motherboard: MSI G41M-P33 Combo

RAM: Xander 4GB DDR3 1333MHz

Graphics card: Gigabyte GTX 275 896MB, Gigabyte RX 470 4GB G1 Gaming

PSU: Cooler Master Extreme Power Plus 500W rs-500-pcar-a3  <--- how did these old parts survive with this crap

 

Dimensions in millimeters

Wraith Stealth: 102 * 114.5 * 53.4

Wraith Spire: 109 * 103 * ~70

Warith Max: 105 * 108 * 85

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Posted · Original PosterOP

The 

2 minutes ago, Jurrunio said:

You can short the main ATX cable in order to use 2 PSU in one system (assuming that the mobo only has 1 main ATX connector). I'm not sure how to do it exactly, but there are tutorials in the internet.

 

Of course you will need a case that can hold 2 PSUs.

The case we have right now is this: http://www.mountainmods.com/ascension-duality-mirror-black-powder-coat-original-top-p-463

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1 minute ago, MLG JFK said:

Yeah I've heard of that.  Is it safe and all to have 2 psu's?

Moderately. As long as they stay cool enough and have good airflow I'd go so far as to assume that it would all work fine. If you're looking for a case that'll support all of this, the Obsidian 900D from Corsair will work for ya.

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Should be fine to have 2 PSUs.  On the PSU 20/24 pin connector there is a green pin.  Short that to ground to turn it on.

 

Problem is that will be make the psu permanently ON and you can't control it by the motherboard.  There are special connectors though to link two psus to a single board.

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6 minutes ago, Jurrunio said:

You can short the main ATX cable in order to use 2 PSU in one system (assuming that the mobo only has 1 main ATX connector). I'm not sure how to do it exactly, but there are tutorials in the internet.

 

Of course you will need a case that can hold 2 PSUs.

What this guy said. If you're not comfortable shorting it yourself, you can get an ATX jumper on Amazon for a couple bucks.


Intel i7-7700k @ 5.1ghz | Asus ROG Maximus Hero IX | Asus ROG Poseidon Platinum 1080ti @ 2126mhz | 64gb Trident-Z DDR4 @ 3600mhz | Samsung 960 Pro 1tb @ 3500mbps/2500mbps | Crucial 240gb SSD | Toshiba 4tb 7200rpm HDD w/ Crucial 128gb SSD cache | Custom EK Water Loop for CPU & GPU | Corsair h1000i PSU | Corsair 570x Crystal RGB Case | Asus ROG Swift 27" 4k IPS w/G-Sync & LG UD68 27" 4k IPS w/Freesync |

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6 minutes ago, MLG JFK said:

If I paid a hefty premium to Super FLower, would they consider shipping a 2000w psu to me? Or do they not ship to the US period?

Havent seen companies reject money so far


CPU: i5 4460 @3.2GHz Motherboard: Asus H81M-PLUS RAM: Kingston 8GB + 4GB DDR3 @1600MHz GPU: Asus GTX 1070 8GB Dual Series Case: 2themax ATX case (black and red) HDD: Seagate Barracuda 7200RPM 500GB, Toshiba 1TB 7.2k RPM, WD AV 7200RPM 320GB SSD: Transcend SSD370 128GB PSU: Seasonic X-660 80+ Gold Monitor: LG 22MP55 22" 1080p 60Hz Keyboard: Steelseries Apex M260 Kailh Blue switches

 

Dumped parts:

CPU: Intel Core 2 Quad Q9400 2.66GHz

Motherboard: MSI G41M-P33 Combo

RAM: Xander 4GB DDR3 1333MHz

Graphics card: Gigabyte GTX 275 896MB, Gigabyte RX 470 4GB G1 Gaming

PSU: Cooler Master Extreme Power Plus 500W rs-500-pcar-a3  <--- how did these old parts survive with this crap

 

Dimensions in millimeters

Wraith Stealth: 102 * 114.5 * 53.4

Wraith Spire: 109 * 103 * ~70

Warith Max: 105 * 108 * 85

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15 minutes ago, Jurrunio said:

You can short the main ATX cable in order to use 2 PSU in one system (assuming that the mobo only has 1 main ATX connector). I'm not sure how to do it exactly, but there are tutorials in the internet.

 

Of course you will need a case that can hold 2 PSUs.

You're supposed to use something similar to this so you don't set something on fire..

 

http://www.ebay.com/itm/Stable-24Pin-Dual-PSU-ATX-Power-Supply-Adaptor-Cable-Connector-For-Mining/282568412399

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get a Phanteks Power Combo or something


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Apollo: i5 4670K @ 4.6Ghz, Corsair H100i, MSI Z87I, EVGA GTX 1070 SC ACX3, Corsair 250D, 840 EVO 120GB, 1TB Seagate Barracuda, SeaSonic 520W PSU. Planned upgrades: 16GB RAM, 480/512GB SSD, new HDD

Sputnik: HP EliteBook 2570p, i5-3360M, 16GB DDR3, 256GB 840 EVO - Running Win10/Sierra dual-boot.  Future upgrades: i7-quad

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Main peripherals

- Corsair Strafe RGB MX Reds

- SteelSeries Siberia 650

- SteelSeries QcK+ CS:GO Camo 

- SteelSeries QcK+ Na'Vi Splash (Secondary pad, used for second rig)

- SteelSeries Rival 700

- SteelSeries Rival 300 (Secondary mouse, used for second rig)

 

 

 

NO ONE SLEEPS IN TOKYO, ALL RIGHT CROSSING THE LINE, NO ONE QUIT THE RADIO, TOKYO IS ON FIRE! 

 

 

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29 minutes ago, MLG JFK said:

Yeah I've heard of that.  Is it safe and all to have 2 psu's?

My dual Xeon rack server has two PSUs, some have 4. It's very safe, safer than one in fact. 


Come hug me please, I won't bite... much

Come hug me please, I won't bite... much

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2 minutes ago, Crunchy Dragon said:

I'm pretty sure he doesn't have a server rack(I could be very wrong however).

If he wants a kind of VM box for VM gaming (that seems to be what he wants, idk if you can SLI through a VM though) then a rack chassis would probably be better. 5 full size GPUs isn't something any normal board will support


Come hug me please, I won't bite... much

Come hug me please, I won't bite... much

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13 hours ago, MLG JFK said:

The total wattage at peak on the psu calculator came out to 1878 watts recommended. with a peak pull of 1828...

Yes, when CPU and GPUs are at 100% load (wich rarely happens) _AND_ all drives start spinning at the same times.

Both conditions have to be met to draw this 1878W wich is clearly impossible, especially for a longer period of time.

So the fact is that the PSU calculators are just utter nonsense and far from reality.

 

I'd suggest to just use one PSU and something like a Kill-A-Watt Thingy.

 

If your rig really uses 1878W wich equals to around 17A@110VAC. So with a 15Amps Breaker (and possibly other things on it as well), it will trip from time to time. So even two PSU won't help at all.

And it's not desirable if it can be avoided for various reasons.

 

So no, you don't need that much. Especially if you don't do overclocking (wich can ruin the GPU in a Year or less accoding to nVIDIA).


"Hell is full of good meanings, but Heaven is full of good works"

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