PSU for new build

[cyruspy]

Hi!, can someone suggest a PSU to cover this configuration:

 

2 x Xeon E5-2670

1 x Intel S2600CP motherboard

128GB RAM, PC3-12800

2 x 100GB Sandisk SSD drives

15 x 4TB WD Red

3 x CSE-M35T-1B 5-in-3 disk cages

2 x Dell PERC H310 SAS HBA

1 x Nvidia GTX 760 or Quadro K4200 GPU

 

I'm thinking going with something like this one:

 

http://www.amazon.com/dp/B00IKDETOW/ref=wl_it_dp_o_pC_nS_ttl?_encoding=UTF8&colid=UYKTV7QRHWBB&coliid=I3A4U5JY61A439&psc=1

 

Edit: Still not sure about GPU

[ashman70]

Never cheap out on your PS, its one of the most important parts of any system. This might be overkill, but I would go with something from Seasonic, they are by far, the best company in the PS business.

 

http://www.amazon.com/Seasonic-SS-1250XM-ATX-Power-Supply/dp/B00607JLWU/ref=sr_1_4?s=pc&ie=UTF8&qid=1459053263&sr=1-4&refinements=p_n_feature_keywords_two_browse-bin%3A6906988011%2Cp_89%3ASeasonic

[danioj]

Hi!, can someone suggest a PSU to cover this configuration:

 

2 x Xeon E5-2670

1 x Intel S2600CP motherboard

128GB RAM, PC3-12800

2 x 100GB Sandisk SSD drives

15 x 4TB WD Red

3 x CSE-M35T-1B 5-in-3 disk cages

2 x Dell PERC H310 SAS HBA

1 x Nvidia GTX 760 GPU

 

I'm thinking going with something like this one:

 

http://www.amazon.com/dp/B00IKDETOW/ref=wl_it_dp_o_pC_nS_ttl?_encoding=UTF8&colid=UYKTV7QRHWBB&coliid=I3A4U5JY61A439&psc=1

 

There is absolutely NOTHING wrong with that PSU.

 

It is a Gold-certified, mid-capacity PSU. It is VERY well priced for its class, looking at some benchmarks it seems to come out with some top performance AND by reports appear to indicate it to be very quiet. Add a whooping 10 Year warranty well, what more do you want?

[cyruspy]

Never cheap out on your PS, its one of the most important parts of any system. This might be overkill, but I would go with something from Seasonic, they are by far, the best company in the PS business.

 

http://www.amazon.com/Seasonic-SS-1250XM-ATX-Power-Supply/dp/B00607JLWU/ref=sr_1_4?s=pc&ie=UTF8&qid=1459053263&sr=1-4&refinements=p_n_feature_keywords_two_browse-bin%3A6906988011%2Cp_89%3ASeasonic

 

Do you really think 1.2KW are needed?. From what I understand, underusing the PSU is also an issue for efficiency and it more than doubles the price of the other one.

 

Is it going to provide something more besides capacity?

[cyruspy]

Hi!, can someone suggest a PSU to cover this configuration:

 

2 x Xeon E5-2670

1 x Intel S2600CP motherboard

128GB RAM, PC3-12800

2 x 100GB Sandisk SSD drives

15 x 4TB WD Red

3 x CSE-M35T-1B 5-in-3 disk cages

2 x Dell PERC H310 SAS HBA

1 x Nvidia GTX 760 GPU

 

I'm thinking going with something like this one:

 

http://www.amazon.com/dp/B00IKDETOW/ref=wl_it_dp_o_pC_nS_ttl?_encoding=UTF8&colid=UYKTV7QRHWBB&coliid=I3A4U5JY61A439&psc=1

 

There is absolutely NOTHING wrong with that PSU.

 

It is a Gold-certified, mid-capacity PSU. It is VERY well priced for its class, looking at some benchmarks it seems to come out with some top performance AND by reports appear to indicate it to be very quiet. Add a whooping 10 Year warranty well, what more do you want?

 

Sounds good enough, I'm trying to validate if I'm missing something here

[danioj]

Hi!, can someone suggest a PSU to cover this configuration:

 

2 x Xeon E5-2670

1 x Intel S2600CP motherboard

128GB RAM, PC3-12800

2 x 100GB Sandisk SSD drives

15 x 4TB WD Red

3 x CSE-M35T-1B 5-in-3 disk cages

2 x Dell PERC H310 SAS HBA

1 x Nvidia GTX 760 GPU

 

I'm thinking going with something like this one:

 

http://www.amazon.com/dp/B00IKDETOW/ref=wl_it_dp_o_pC_nS_ttl?_encoding=UTF8&colid=UYKTV7QRHWBB&coliid=I3A4U5JY61A439&psc=1

 

There is absolutely NOTHING wrong with that PSU.

 

It is a Gold-certified, mid-capacity PSU. It is VERY well priced for its class, looking at some benchmarks it seems to come out with some top performance AND by reports appear to indicate it to be very quiet. Add a whooping 10 Year warranty well, what more do you want?

 

I want to add something to this BUT felt like it deserved another post. While that IS a good PSU on reflection I thought it might be slightly underpowered when I pondered your Hardware list again.

 

So I plugged it into an online calculator:

 

http://outervision.com/b/wuICPg

 

It appears (according to this tool and without doing the math myself) that a higher capacity PSU is recommended:

 

Load Wattage: 790 W

Recommended UPS rating: 1400 VA

Recommended PSU Wattage: 840 W

 

Amperage (combined)

+3.3V +5V +12V

12.4 A 45.0 A 47.8 A

267 W         574 W

 

[cyruspy]

Something like the 850w version of the one I posted?

[danioj]

Something like the 850w version of the one I posted?

 

According to those numbers, I would say Yes, that would do.

 

HOWEVER, have a think about headroom for the future though. Is anything going to change?

 

For a laugh I changed the drives from 5400rpm drives to 7200 rpm drives and (once again), using the calculator it upped the load wattage to: 853W and Recommended PSU to: 903W

 

http://outervision.com/b/YHO5mO

 

Are you going to add any more drives?

 

Using the calculator I added 2 more SSD's and 5 more 5400 rpm HDD's and it upped the load wattage to: 830W and Recommended PSU to: 880W

 

http://outervision.com/b/qgCEZb

 

Think about what you would need if those were ALL 7200 rpm drives too?

 

Combining the two examples above into 4 SSD's and 20 (5 more) 7200 rpm HDD's that upped the load wattage to: 912W and Recommended PSU to: 962W

 

http://outervision.com/b/dJvu8Q

 

Then (Just for Giggles) even think about a higher powered GPU?? Something like an GeForce GTX 980i. That upped the load wattage to: 1006W and Recommended PSU to: 1056W

 

http://outervision.com/b/v23Ooi

 

Anyway, in conclusion I think you might be best off going for the 1300W version IF you're going to get anywhere near that extreme example I have given above OR select one closest to where you think you will scale the server to.

[cyruspy]

I'm not going to add more disks for sure, GPU side is uncertain, I want to create VM for CAD and rendering, so might scale to 2, but might go to a single more powerful one.

 

The thing is, over the years I've seen better ROI/CAPEX investments going with maximum configuration and doing a complete swap later, in 5 years all the components become either underpowered or inefficient by modern standards.

 

Found this other PSU which supports PMBus, again way more expensive (1.2kw version reaches 300 dollars  ):

 

http://www.amazon.com/Corsair-Modular-Digital-Platinum-Certified/dp/B00A0HZNDW/ref=sr_1_1?ie=UTF8&qid=1459088981&sr=8-1&keywords=AXi+860+PSU

[nthu9280]

I'm not going to add more disks for sure, GPU side is uncertain, I want to create VM for CAD and rendering, so might scale to 2, but might go to a single more powerful one.

 

The thing is, over the years I've seen better ROI/CAPEX investments going with maximum configuration and doing a complete swap later, in 5 years all the components become either underpowered or inefficient by modern standards.

 

Found this other PSU which supports PMBus, again way more expensive (1.2kw version reaches 300 dollars  ):

 

http://www.amazon.com/Corsair-Modular-Digital-Platinum-Certified/dp/B00A0HZNDW/ref=sr_1_1?ie=UTF8&qid=1459088981&sr=8-1&keywords=AXi+860+PSU

If you don't already have a chassis, the eBay seller kalleyomalley has some really nice Intel New In Box surplus ones that come with a platinum power supply or two depending on the config for < $150 US.  They have been discussed on the huge E5-2670 v1 threads here and on STH

[cyruspy]

I'm not going to add more disks for sure, GPU side is uncertain, I want to create VM for CAD and rendering, so might scale to 2, but might go to a single more powerful one.

 

The thing is, over the years I've seen better ROI/CAPEX investments going with maximum configuration and doing a complete swap later, in 5 years all the components become either underpowered or inefficient by modern standards.

 

Found this other PSU which supports PMBus, again way more expensive (1.2kw version reaches 300 dollars  ):

 

http://www.amazon.com/Corsair-Modular-Digital-Platinum-Certified/dp/B00A0HZNDW/ref=sr_1_1?ie=UTF8&qid=1459088981&sr=8-1&keywords=AXi+860+PSU

If you don't already have a chassis, the eBay seller kalleyomalley has some really nice Intel New In Box surplus ones that come with a platinum power supply or two depending on the config for < $150 US.  They have been discussed on the huge E5-2670 v1 threads here and on STH

 

Just received the PSU on the mail... I already have a EATX case that I'm planning to use (CK-1022, sold with different brands). The thing is that shipping outside the U.S. is usually very expensive for heavy items like a case.

 

Got the EVGA 220-G2-0850-XR locally in 24hs at the same price I could have bought it from Amazon and have it delivered through a freight forwarder to Paraguay in 15 days, as this needed around 50 bucks for shipping.

 

I'll take a look anyway at the case,  thanks for the pointer.

 

 

[isvein]

you can use this to figure out how much power you need minimum

http://www.coolermaster.com/power-supply-calculator/

 

Its pointless to have over the top from what you need, as an powersuply is not more effective if it has low load.

[danioj]

you can use this to figure out how much power you need minimum

http://www.coolermaster.com/power-supply-calculator/

 

That is pretty much the same calculator that I was using to help the OP, the only difference is that the calculator I used allows the results to be stored which makes them good for posting on forums.

 

Its pointless to have over the top from what you need, as an powersuply is not more effective if it has low load.

 

AFAIK the optimal efficiency point for a PSU is between 60-80% load HOWEVER for a PSU of high quality the efficiency of the PSU at other load points is very good also. Especially for those PSU's that are Platinum certified.

 

Therefore I see NOTHING wrong with the advice "if you can afford it" buying a PSU with some headroom is a good investment to deal with future upgrades. The disadvantage of having a higher rated power supply is initial cost so you don't do this unless you feel there is a high potential for needing it in the future.

[cyruspy]

Run out of molex connectors 

 

I still have plenty of SATA power connectors,  would any molex modular cable fit the PSU?, or should I just uso those generic SATA to MOLEX adapters with the stock cables?

[Squid]

Run out of molex connectors 

 

I still have plenty of SATA power connectors,  would any molex modular cable fit the PSU?, or should I just uso those generic SATA to MOLEX adapters with the stock cables?

never use any modular cable unless its explicitly designed for the power supply.  Modular cables (even from the same manufacturer) can vary in pin outs from supply to supply.  Use a sata to molex adapter.