Is the FSP Hexa 500W fine running a Palit reference-like GTX 780?

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Giggitygoebbels

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Oct 24, 2012
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So i have this Xeon E3-1245v2 build,and I want to buy a new graphics card.I am wondering if this power supply is good enough,because it have 1 8 pin PCIe and 1 6 pin PCIe,but the 780 have 2 8 pin pcie.If it works,what kind of adapter do i need?Also,i do not want to run the risk of blowing up the system.
The power supply calculator does tell me that 500W is more than enough,but i am wondering about the rails thing(which i kind dont understand),like if the power supply is not good enough because of double rails or something.
Thanks.
The build if needed:
Xeon E3-1245v2
P8B75-M LE
8GB RCMemory RAM
FSP Hexa 500W 80+(though the 80+ logo on the box is fake)
1x 3TB DT01ACA300
1x Seagate 500GB
1x120GB Samsung 840 (Vanilla)
 
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dottorrent

dottorrent

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May 20, 2012
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It's not. And anything that smells of a fake 80+ unit should be thrown away immediately. I recommend this PSU for your system, especially if you have a Xeon processor in your system -

Seasonic G-750 80+ Gold certified PSU - http://pcpartpicker.com/part/seasonic-power-supply-ssr750rm @Amazon $128.04

This unit is enough for your system. It's of very high quality and is officially certified 80+ Gold, meaning your PSU will deliver up to 92% efficiency, will run very cool and has modular cables, so you only plug in your required cables in your system, thus removing lingering cables in your system.

Hope this helped you.
 
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AxlFone

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dottorrent

dottorrent

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The Seasonic is the better choice. The Corsair PSUs listed are made by Channel Well Technology. Though good quality, they're not as well built as the Seasonic. Plus, you get a 5 year warranty as compared to Corsair's 3 year warranty with the CX series of PSUs.
 
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Giggitygoebbels

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Oct 24, 2012
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How about an Antec HCG 620W modular one?
 
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dottorrent

dottorrent

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That Antec PSU is made by Seasonic, based on Seasonic's M12-II platform. It is a very good PSU.
 
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ko888

ko888

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Feb 18, 2009
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For a system using a single GeForce GTX 780 graphics card NVIDIA specifies a minimum of a 600 Watt or greater system power supply that has a maximum combined +12 Volt continuous current rating of 42 Amps or greater and that has at least one 6-pin and one 8-pin PCI Express supplementary power connectors. By my calculations the maximum combined +12 Volt continuous current rating of 42 Amps is over spec'd by 7 Amps so 37 Amps or greater should be the minimum spec.

Total Power Supply Wattage is NOT the crucial factor in power supply selection!!! Sufficient Total Combined Continuous Power/Current Available on the +12V Rail(s) rated at 45°C - 50°C ambient temperature, is the most critical factor.

Overclocking of the CPU and/or GPU(s) may require an additional increase to the maximum combined +12 Volt continuous current ratings, recommended above, to meet the increase in power required for the overclock. The additional amount required will depend on the magnitude of the overclock being attempted.

The FSP HEXA Series 500W (HE-500) power supply unit, with its maximum combined +12 Volt continuous current rating of 34 Amps and with one 6-pin and one (6+2)-pin PCI Express supplementary power connectors, is insufficient to power your system configuration with a single GeForce GTX 780 graphics card. On this PSU another limitation is that the two PCI Express supplementary power connectors are both on the +12V2 rail that has an 18 Amp limit. The OCP set point on the +12V2 rail is 24 Amps where the PSU will shut down as soon as that limit is reached.

If your Palit GeForce GTX 780 has two 8-pin PCI Express supplementary power connectors then it's not a reference design card. Palit's reference design GeForce GTX 780 is the following:
p02132_bigimage_18115195a62c1c36a.jpg
 
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G

Giggitygoebbels

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Oops i was wrong it have 1 8 pin and 1 6 pin.
Is the seasonic,corsair and antec i mentioned fine?They are all 620W.I do not know anything about the rails and voltage so excuse me for that.
Thanks
 
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ko888

ko888

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Antec HCG M 620W (HCG-620M)
• OEM: Seasonic
• maximum combined +12 Volt continuous current rating of 48 Amps
• two (6+2)-pin PCI Express supplementary power connectors
• semi-modular
• 3 Year Warranty

Seasonic S12II-620 Bronze (SS-620GB)
• maximum combined +12 Volt continuous current rating of 48 Amps
• one 6-pin and one (6+2)-pin PCI Express supplementary power connectors
• full wired
• 3 Year Warranty

Corsair CX600 (75-001668 / CP-9020048)
• OEM: CWT (Channel Well Technology)
• maximum combined +12 Volt continuous current rating of 46 Amps
• two (6+2)-pin PCI Express supplementary power connectors
• full wired
• 3 Year Warranty

Corsair CX750 (75-001447 / CP-9020015)
• OEM: CWT (Channel Well Technology)
• maximum combined +12 Volt continuous current rating of 62 Amps
• four (6+2)-pin PCI Express supplementary power connectors
• full wired
• 3 Year Warranty

All of them are sufficient to power a system with a single GeForce GTX 780 graphics card.

My recommendation is either the Antec HCG-620M or the Seasonic S12II-620 Bronze because they have better electrical performance and they use higher quality components in their construction.
 
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Giggitygoebbels

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Okthat is great,is there any psu you recommend from this price list?

https://www.facebook.com/PCThemes/app_249605948390196
Thanks
 
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