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Does it need to be connected to smps?

Tags:
  • Gtx
  • Graphics
  • Geforce
  • Nvidia
Last response: in Graphics & Displays
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September 30, 2014 10:28:05 PM

Hi ,i am looking to buy nvidia geforce gtx 750 ,i have this smps (http://i.imgur.com/RXwDzeU.jpg), needed to know if the gpu needs to be connected to smps or not.Also need to make sure how much does that psu give usable watts.What does that +12v1 and +12v2 means?

My Rig:
Intel I5 4670 4th generation
6 GB ram
H81M-S1 motherboard
500Hdd

More about : connected smps

September 30, 2014 10:54:11 PM

There are 750s that should run without needing to be connected to the power supply.
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a c 108 Î Nvidia
September 30, 2014 11:02:04 PM

the GX 750 can run off the motherboard power through the PCI-E slot, no power connectors required.

As for the power supply all you need is 400W with above 20A is easily sufficient enough.

"What does that +12v1 and +12v2 means?" <- don't worry too much about this, for an example a power supply has 12v1 with 12A and 12v2 with 19A, it has 31A total.
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September 30, 2014 11:04:43 PM

unknownofprob said:
the GX 750 can run off the motherboard power through the PCI-E slot, no power connectors required.

As for the power supply all you need is 400W with above 20A is easily sufficient enough.

"What does that +12v1 and +12v2 means?" <- don't worry too much about this, for an example a power supply has 12v1 with 12A and 12v2 with 19A, it has 31A total.


So i can install that graphic card without any trouble about my power supply?
The motherboard is also be compatible?
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a c 108 Î Nvidia
September 30, 2014 11:06:06 PM

Looking at your power supply, it should be fine. Though later on I would advise you buy a better quality power supply.
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September 30, 2014 11:11:15 PM

Any suggestions on getting psu?What do think my current psu will give max usable watts?
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a c 108 Î Nvidia
September 30, 2014 11:17:07 PM

it is unknown, though i doubt it will deliver 450W.

I would go for a PSU that fits into these three categories -

Cprsair/Antec/XFX/Seasonic with at least 80+ BRONZE Certification and a minimum of 5 years warranty. If above 400W your easily set and looking at something quality.
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September 30, 2014 11:21:32 PM

unknownofprob said:
it is unknown, though i doubt it will deliver 450W.

I would go for a PSU that fits into these three categories -

Cprsair/Antec/XFX/Seasonic with at least 80+ BRONZE Certification and a minimum of 5 years warranty. If above 400W your easily set and looking at something quality.


Ok ty
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a c 108 Î Nvidia
September 30, 2014 11:24:08 PM

no problem, glad to have helped.
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a b Î Nvidia
September 30, 2014 11:44:59 PM

It's 15 and 16A on the two rails, not 12 and 19.
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a c 108 Î Nvidia
October 1, 2014 12:00:28 AM

"for an example a power supply has 12v1 with 12A and 12v2 with 19A, it has 31A total."

that was an example, not his.
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a b Î Nvidia
October 1, 2014 12:04:50 AM

unknownofprob said:
"for an example a power supply has 12v1 with 12A and 12v2 with 19A, it has 31A total."

that was an example, not his.


Probably, but still it's not correct.
Currents given on multirail PSU's are limits, not actual currents.
If a PSU has say 20 A each on 2 rails, then I personally assume each can supply only 80% of what is written, so total current is 2*16 = 32 A, not 40A as you'd get when you add them.
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a c 108 Î Nvidia
October 1, 2014 12:42:08 AM

This was an equation if it were 100% efficiency to make things look less complicated then they are.
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