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Will a 300W 18A run a GTX 750 ti

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  • Power Supplies
  • Graphics Cards
  • Components
Last response: in Components
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March 12, 2014 6:38:35 AM

I have been looking to upgrade and i found the 750 ti, since you dont need a 6 pin for it i decided i would probably buy it. Nvidia said that low end psus like mine can run it with a 300w psu but then on the system requirements it said it required 400W and 20A. I know a Radeon HD 7750 would work even though its system requirements are 400w because it only requires 18A which i have. But a GTX 750 ti is far more superior. Here's my specs:
Cpu:Amd a10 5700 3.4Ghz (Max tdp is 65W)
Psu:Internal Atx 300W (+12V=18A)
Model Number: P7-1240
Will 18A be enough? Im not gonna buy a new PSU because its all together too expensive. Also the max tdp of the 750 ti is 60W which makes me think why it requires 400w. Thanks guys!

More about : 300w 18a run gtx 750

a b U Graphics card
March 12, 2014 6:57:53 AM

A GeForce GTX 750ti needs at least 20 amps on the 12v rail and a 400 watts power supply.
Your psu only has 18 amps on the 12v rail and is not sufficient to run a 750ti.
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March 12, 2014 7:43:32 AM

Damn that sucks, oh well. Would the GTX 750 (non ti) work with my psu? It says it requires 300W and 18A so i should be good right? Also would performance be a lot worse with the 750 non tI than the ti version?
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a b U Graphics card
March 12, 2014 8:07:09 AM

yahoolinovich said:
Damn that sucks, oh well. Would the GTX 750 (non ti) work with my psu? It says it requires 300W and 18A so i should be good right? Also would performance be a lot worse with the 750 non tI than the ti version?


Is your PSU generic? Personally i wouldnt try it. But if you have only 1 regular HDD and 1 CD, DVD or Blueray and just the 1 intake fan you should be fine. I havent seen any benchmarks on this, but looking on it's specs, i think it would be that much worse
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March 12, 2014 8:53:48 AM

My cpu only takes 65W and i have only one of everything. My whole system at the absolute maximum would take 115W. Shouldnt i be fine with a GTX 750 (non ti)? My psu meets the requirements!
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a b U Graphics card
March 12, 2014 8:59:37 AM

yahoolinovich said:
My cpu only takes 65W and i have only one of everything. My whole system at the absolute maximum would take 115W. Shouldnt i be fine with a GTX 750 (non ti)? My psu meets the requirements!


should be fine ^_^
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Best solution

a c 1217 ) Power supply
a c 578 U Graphics card
March 12, 2014 9:36:24 AM

A GeForce GTX 750 Ti is a 60 Watt card so it should be drawing less than 5.5 Amps from the +12V rail even when running FurMark stability testing.

The 20 Amps that NVIDIA AIB (Add-In Board) partners specify is for a system based on an Intel Core i7 3.2GHz 130 Watt TDP processor. NVIDIA uses a +12V rail current draw of 15 Amps for this reference system.

Your total system draw from the +12V rail, including a GeForce GTX 750 Ti, should be under 15 Amps.

Just make sure that the GeForce GTX 750 Ti card that you get doesn't require a PCI Express power connector.
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March 12, 2014 9:41:50 AM

So 300w 18A is enough?
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a c 1217 ) Power supply
a c 578 U Graphics card
March 12, 2014 10:04:35 AM

yahoolinovich said:
So 300w 18A is enough?


It definitely should be if the PSU is from a reputable manufacturer.
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March 12, 2014 11:38:17 AM

It came with my hp p7-1240 pc so i dont expect it to be too good. Its an internal ATX 300W psu, im just scared it'll damage my computer if i buy it.
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a c 1217 ) Power supply
a c 578 U Graphics card
March 12, 2014 11:49:18 AM

yahoolinovich said:
It came with my hp p7-1240 pc so i dont expect it to be too good. Its an internal ATX 300W psu, im just scared it'll damage my computer if i buy it.


Those PSUs are usually OEM Delta Electronics models. They are able to output the power specified on its label but you won't be drawing its maximum power rating anyway.
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March 12, 2014 2:53:47 PM

So would it work without any performance drawbacks or any drawbacks at all? Would it work perfectly? (Sorry im not too intelligent when it comes to computers)
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a c 1217 ) Power supply
a c 578 U Graphics card
March 12, 2014 3:09:23 PM

yahoolinovich said:
So would it work without any performance drawbacks or any drawbacks at all? Would it work perfectly? (Sorry im not too intelligent when it comes to computers)


Even HP won't guarantee that there won't be any performance drawbacks or that it will work perfectly for any add-in graphics card that you don't buy from them.

If you opt for the GeForce GTX 750, it's not much better in terms of power consumption. It's only a 5 Watt difference or 0.42 Amps less from the +12V rail than for the GeForce GTX 750 Ti. That's essentially close enough to be considered the same power consumption.
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March 12, 2014 4:47:29 PM

So should i get it or not??? Just say yes or no. If u were in my position what would u do? Tell me please
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a c 1217 ) Power supply
a c 578 U Graphics card
March 12, 2014 4:53:32 PM

About 6 replies back I said that your PSU is enough.
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March 14, 2014 10:17:46 PM

Hey ko888 i know im replying a bit late but i have another question. Would the superclocked version of the Evga 750 ti take more power out of my psu or would it still be fine? Ohhh yes and i realized that my psu is a dual psu or something like that, the 12v1 rail is 16A and the 12v2 is 14A does that mean my 12v rail adds up to 30A or not? Could that be a problem?
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a c 1217 ) Power supply
a c 578 U Graphics card
March 15, 2014 10:35:41 AM

yahoolinovich said:
Hey ko888 i know im replying a bit late but i have another question. Would the superclocked version of the Evga 750 ti take more power out of my psu or would it still be fine? Ohhh yes and i realized that my psu is a dual psu or something like that, the 12v1 rail is 16A and the 12v2 is 14A does that mean my 12v rail adds up to 30A or not? Could that be a problem?


EVGA states that the GeForce GTX 750 Ti Superclocked [02G-P4-3753-KR] uses a maximum of 60 Watts. It still doesn't use a PCI Express supplementary power connector. It shouldn't require any more power than the NVIDIA Reference Design GeForce GTX 750 Ti card.

No, you do not just add the +12V rail capacities together. The combined +12V1 and +12V2 capacity should be stated on the PSU's label. It is usually a Wattage value so you'll have to divide that value by 12 to get the Amperage.

What is the HP model number and part number for the PSU?
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March 15, 2014 10:53:41 AM

My model number is a P7 1240
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a c 1217 ) Power supply
a c 578 U Graphics card
March 15, 2014 10:55:01 AM

yahoolinovich said:
My model number is a P7 1240


That's not the PSU's model and part number.
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March 15, 2014 3:07:48 PM

Ohhh whoops i thought you meant my computer model number. I couldnt really find the brand or anything on it for some reason, all i found was that its an Internal ATX 300W.
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a c 1217 ) Power supply
a c 578 U Graphics card
March 15, 2014 3:24:05 PM

yahoolinovich said:
Ohhh whoops i thought you meant my computer model number. I couldnt really find the brand or anything on it for some reason, all i found was that its an Internal ATX 300W.


There should be a label affixed to the side of the PSU.
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March 15, 2014 5:24:36 PM

Im not home atm but i will be tomorrow and i will let you know the psu model number then.
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March 15, 2014 5:54:46 PM

Hey Ko888, i managed to it on the internet it is a 300W uATX Reg PSU (Gamay) and the model number is: FH-XD301MYR-1
The part number is: 667893-001. Will this be okay? Whats the total ampage and wattage on it?
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a c 1217 ) Power supply
a c 578 U Graphics card
March 15, 2014 11:55:35 PM

yahoolinovich said:
Hey Ko888, i managed to it on the internet it is a 300W uATX Reg PSU (Gamay) and the model number is: FH-XD301MYR-1
The part number is: 667893-001. Will this be okay? Whats the total ampage and wattage on it?


The maximum combined +12 Volt continuous current rating is 18 Amps. It can be determined from the 216W that appears beside the +12Va & +12Vb rails (i.e. using Ohm's Law: 216W ÷ 12V = 18A). It will derate as the temperature of the PSU rises (i.e. the PSU's total power capacity will decrease as its operating temperature rises. My guess is that it will drop by 40 Watts to 260 Watts when the temperature reaches 50°C).

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a c 1217 ) Power supply
a c 578 U Graphics card
March 16, 2014 12:01:23 PM

Quote:
Hey Ko888, i managed to it on the internet it is a 300W uATX Reg PSU (Gamay) and the model number is: FH-XD301MYR-1
The part number is: 667893-001. Will this be okay? Whats the total ampage and wattage on it?

yahoolinovich said:
Would this affect my performance in any way? Also i found this link and it said my max ampage is 22A, here's the link, take a look:
http://www.scan.co.uk/products/300w-fsp-micro-atx-80-ef...


So which PSU do you have?

The FH-XD301MYR-1 and the FSP300-60GHS are not the same PSU.

If you indeed have the FSP300-60GHS then the information you seek is clearly visible on the label (+12V1 & +12V2 = 22A Max) and means that this PSU is definitely capable of powering your system with an EVGA GeForce GTX 750 Ti Superclocked [02G-P4-3753-KR]:
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March 16, 2014 2:25:33 PM

ko888 said:
Quote:
Hey Ko888, i managed to it on the internet it is a 300W uATX Reg PSU (Gamay) and the model number is: FH-XD301MYR-1
The part number is: 667893-001. Will this be okay? Whats the total ampage and wattage on it?

yahoolinovich said:
Would this affect my performance in any way? Also i found this link and it said my max ampage is 22A, here's the link, take a look:
http://www.scan.co.uk/products/300w-fsp-micro-atx-80-ef...


So which PSU do you have?

The FH-XD301MYR-1 and the FSP300-60GHS are not the same PSU.

If you indeed have the FSP300-60GHS then the information you seek is clearly visible on the label (+12V1 & +12V2 = 22A Max) and means that this PSU is definitely capable of powering your system with an EVGA GeForce GTX 750 Ti Superclocked [02G-P4-3753-KR]:


I think your right, I just got home and took a pic of my psu, here it is:


So does this mean I wont be able to run 750 ti sc? What would the total wattage and ampage be?

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a c 1217 ) Power supply
a c 578 U Graphics card
March 16, 2014 2:33:46 PM

yahoolinovich said:
I think your right, I just got home and took a pic of my psu, here it is:


So does this mean I wont be able to run 750 ti sc? What would the total wattage and ampage be?



Here's what? I don't see any link or picture.

You need to upload the image to an image sharing server like imgur.com or postimage.org or some other. There will usually be a button that you can click on to copy the URL for a direct link to image and then paste that URL into your reply's image link.
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a c 2488 ) Power supply
a c 928 U Graphics card
March 16, 2014 2:41:38 PM

Nice copy and paste of one of my answers.

http://www.tomshardware.com/answers/id-2037526/gtx-750-...

A GeForce GTX 750ti needs at leat 20 amps on the 12v rail and a 400 watt power supply.

Your supply only has 18 amps on the 12v rail and isn't sufficient to run a 750ti.
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March 16, 2014 7:00:43 PM

ko888 said:
yahoolinovich said:
I think your right, I just got home and took a pic of my psu, here it is:


So does this mean I wont be able to run 750 ti sc? What would the total wattage and ampage be?



Here's what? I don't see any link or picture.

You need to upload the image to an image sharing server like imgur.com or postimage.org or some other. There will usually be a button that you can click on to copy the URL for a direct link to image and then paste that URL into your reply's image link.


That's weird it shows for me, anyways here it is on imgur: " alt="" class="imgLz frmImg " />
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a c 1217 ) Power supply
a c 578 U Graphics card
March 16, 2014 9:22:23 PM

I would say that the maximum combined +12 Volt continuous current rating is 18 Amps but definitely no more than 19 Amps.

That should still be enough to power your system with an EVGA GeForce GTX 750 Ti Superclocked [02G-P4-3753-KR].
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March 17, 2014 12:56:43 PM

ko888 said:
I would say that the maximum combined +12 Volt continuous current rating is 18 Amps but definitely no more than 19 Amps.

That should still be enough to power your system with an EVGA GeForce GTX 750 Ti Superclocked [02G-P4-3753-KR].

I don't know if I should get it then, should I? Would there be any performance loss because of my psu? And would this decrease my computers life span? If it affects my computers lifetime how long would my computer last for then?
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a c 1217 ) Power supply
a c 578 U Graphics card
March 17, 2014 1:50:38 PM

yahoolinovich said:
ko888 said:
I would say that the maximum combined +12 Volt continuous current rating is 18 Amps but definitely no more than 19 Amps.

That should still be enough to power your system with an EVGA GeForce GTX 750 Ti Superclocked [02G-P4-3753-KR].

I don't know if I should get it then, should I? Would there be any performance loss because of my psu? And would this decrease my computers life span? If it affects my computers lifetime how long would my computer last for then?


With an EVGA GeForce GTX 750 Ti Superclocked [02G-P4-3753-KR] in your HP Pavilion p7-1240 Desktop PC your system power consumption from the PSU during gaming should be less than 200 Watts. That's well within the PSU's capability.
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March 17, 2014 5:00:12 PM

Even when playing demanding games at highest settings its under 200W? So my peak power usage would be less than 200W? Still, would this decrease my computers life?
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a c 1217 ) Power supply
a c 578 U Graphics card
March 17, 2014 5:07:29 PM

yahoolinovich said:
Even when playing demanding games at highest settings its under 200W? So my peak power usage would be less than 200W? Still, would this decrease my computers life?


I calculated 190 Watts for an HP Pavilion p7-1240 Desktop PC with a GeForce GTX 750 Ti during gaming. That's only 63% of the PSU's 300 Watt maximum capacity.

Your computer's life has been decreasing as soon as you took it out of the box, plugged it in and began using it.
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March 17, 2014 5:35:37 PM

Yes i know but will adding this gpu decrease the lifetime even more?
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a c 1217 ) Power supply
a c 578 U Graphics card
March 17, 2014 7:05:39 PM

yahoolinovich said:
Yes i know but will adding this gpu decrease the lifetime even more?


As I've already said, it's well within the PSU's capability to handle the addition of that graphics card.

If you're so worried about decreasing the lifetime of your system then you might as well stop using it.
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March 21, 2014 8:32:08 AM

I know its been awhile but thanks so much for helping me.out even after solution. Only few people would do that thanks so much!!!! Im probably gonna purchase the 750 ti sc in a few weeks cuz of it being out of stock. Once i get it in a few weeks i will post if it worked or not.
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April 1, 2014 7:46:27 PM

Hey ko888 and everyone else, i hope u guys see this, Just got the EVGA 750 TI Superclocked and plugged it in. It works perfectly no problems and the fan and the card makes no noise at all from what i can tell. I used to run bf4 campaign at lowest settings now i run it maxed out, its amazing and i love it!!! Ko888, u helped me greatly and i really appreciate it, if it wasnt for u helping me i probably woudnt have got this amazing card!!!!! I have run most games on ultra now and i love it!!!? Smooth fps as well! Thank u so much everyone and Ko888, and to all with a 300W psu and in my situation get the EVGA 750 Ti, u wont regret it! :)  also, i do have the superclocked version and it works fine!!!
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April 3, 2014 11:39:28 AM

I am running the same processor as you but a different power supply. When card is installed, it will load and POST then beep and go to a black screen with blinking cursor.

Power supply is FSP Power - FSP300-60THA(1).. aka.. OEM garbage.

What BIOS are you running on your mobo? Its good to know that it is compatible with the a10 5700.
This thread may help narrow my problem down to the PSU or a dead card.

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April 3, 2014 3:11:45 PM

Merllin said:
I am running the same processor as you but a different power supply. When card is installed, it will load and POST then beep and go to a black screen with blinking cursor.

Power supply is FSP Power - FSP300-60THA(1).. aka.. OEM garbage.

What BIOS are you running on your mobo? Its good to know that it is compatible with the a10 5700.
This thread may help narrow my problem down to the PSU or a dead card.


how do I check bios
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April 3, 2014 3:19:33 PM

You can boot to it on start up or download a program like CPU-Z and it will give you all that information
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a b ) Power supply
a b U Graphics card
April 3, 2014 3:31:57 PM

Corsair 500w

Very economical, plenty large enough to remove any worries about wattage, and will be able to run either the non-pcie connector or 6-pin connector 750Ti easily.

Only reason I question all of this is due to the power supply picture. There are some psu's that have multiple rails that do not add their outputs. They do in fact run separate rails, and this is more true on psu's that do not show a single 12v combined total. If you look at the first posted picture it shows a combined 12v output of 216w. The second picture shows combined output for only the 3.3v and 5v. Whether the second psu pictured has 2 separate rails or is dual rail with single output is anyones guess, got to actually take it apart and trace the wiring, but by just that picture alone is enough to concern me that it could possibly be separate rails.

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April 3, 2014 4:49:03 PM

Karadjgne said:
Corsair 500w

Very economical, plenty large enough to remove any worries about wattage, and will be able to run either the non-pcie connector or 6-pin connector 750Ti easily.

Only reason I question all of this is due to the power supply picture. There are some psu's that have multiple rails that do not add their outputs. They do in fact run separate rails, and this is more true on psu's that do not show a single 12v combined total. If you look at the first posted picture it shows a combined 12v output of 216w. The second picture shows combined output for only the 3.3v and 5v. Whether the second psu pictured has 2 separate rails or is dual rail with single output is anyones guess, got to actually take it apart and trace the wiring, but by just that picture alone is enough to concern me that it could possibly be separate rails.


Dude, I already have the 750 ti sc and it works perfectly with my 300W psu. I've had no problems so..... im not gonna buy anything else.....but thanks for answering
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