Can a 300 Watt or 430 Watt Power Supply run a i3-4150 & GTX 750 Ti

[Richard Coronado]

Hello, i was wanting to know if a 300 or 430 watt power supply run a i3-4150 and a GTX 750 Ti. I have a 300 Watt right now and when i bought my processor and new motherboard. I tried to hook them up and my computer didnt start up. I got frustrated and the first thing i thought of was that i didnt have enough power. I also saw another problem, I had a 4-pin inside a 8-pin for the cpu power. I dont know if i am suppose to have a 4 pin in there or a 8 pin. My graphics card doesnt require a special 6 pin connector. To clear it up a bit if you didn understand, The cpu power(the 8 pin near the cpu), i plugged in a 4 pin connector(300 watt) and nothing happend. Please respond ASAP and i will try to clarify the things i said. Thankyou for your time

 

[FR@NK]

What model motherboard are you using? You might be able to get a 4pin to 8pin adapter.

Its normally a very good investment to just spend the cash and get a quality power supply.

 

[INSTG8R]

"Technically" you "can" use a 4 pin on that connector but not the ideal and obviously not working in your case and that info may be out of date now so it may no longer be possible. Spending some money on a decent quality PSU will get you the right connectors you need and piece of mind.

 

[Caring1]

300W would be the minimum needed without a graphics card.
You can try this by removing the graphics card and making sure the CPU 4 pin power is connected to the left of the 8 pin socket, it should boot up.

 

[pbm86]

Probably your PSU isn't good enough. The connectors are not the problem. Most cheap power supplies especially older ones have only a 4-pin CPU connector. Many people including me have used such a connector with a 8-pin connector motherboard. Most desktop CPUs really don't need so much power. Probably the graphics card requires a better PSU even with a PCI-E socket on board.

 

[BoyGenius]

Hello, i was wanting to know if a 300 or 430 watt power supply run a i3-4150 and a GTX 750 Ti. I have a 300 Watt right now and when i bought my processor and new motherboard.

300W will not be enough if you want to use Graphic Card. Go for ~550W PSU if you haven't bought anything yet however 430W will serve your purpose if you have it with you.
If you Tell us more about your Pc's Motherboard Model we may help better.

I had a 4-pin inside a 8-pin for the cpu power. I dont know if i am suppose to have a 4 pin in there or a 8 pin. My graphics card doesnt require a special 6 pin connector.

For your processor 4-pin will be fine but as your MB require 8-pin connector, may be power supply

My graphics card doesnt require a special 6 pin connector.

It will take power from PCI slot ~75W so you will require a 400W PSU at least.

The cpu power(the 8 pin near the cpu), i plugged in a 4 pin connector(300 watt) and nothing happend. Please respond ASAP and i will try to clarify the things i said. Thankyou for your time

For safety don't go for any adapters extras, if you get Good PSU now you may be upgrade to newer components while keeping that power supply.

 

[GreiverBlade]

300W would be the minimum needed without a graphics card.
You can try this by removing the graphics card and making sure the CPU 4 pin power is connected to the left of the 8 pin socket, it should boot up.

i am wondering ... my Alpha use a i3 4130T (35w Versus 54w ) and a GTX 860M (which is a full 750Ti if clocked right, it's the Maxwell variante) OC which has the same 60w power consumption as the 750Ti, on a 140w powerbrick.

It will take power from PCI slot ~75W so you will require a 400W PSU at least.

nvidia recommend 300w for a 750Ti (60W Graphics Card Power) for the model without additional PCIeX power connector)


so 300 w can probably do it, but 430 would be more on the safe side

 

[Mussels]

To clear things up, my PC in my specs on the left doesnt even use 350 watts. A lot of people will tell you to get high wattage power supplies, just because any problem they don't understand gets blamed on the PSU.


You have a 54W CPU , and that GPU peaks at about 75W, all pulled from the slot. Your PC probably needs less than 150W at full load.

My guess is that your motherboard cant handle 75W from the slot, or you've made a mistake elsewhere. Can you list the full specs of the PC, and give us some pictures?

Oh and a 4 pin in the 8 pin CPU power is just fine, since you have such a low wattage CPU. It might have been an issue with a 130W 6 core, but not with an i3.

 

[BoyGenius]

i am wondering ... my Alpha use a i3 4130T (35w Versus 54w ) and a GTX 860M (which is a full 750Ti if clocked right, it's the Maxwell variante) OC which has the same 60w power consumption as the 750Ti, on a 140w powerbrick.

nvidia recommend 300w for a 750Ti (60W Graphics Card Power) for the model without additional PCIeX power connector)

so 300 w can probably do it, but 430 would be more on the safe side

I suggested him to go for higher PSU because he will be able to get full potential of his components & in case of future upgrades will have good PSU.
In any case going for 430W or 500W PSU will be a safe bet than 300W. He also do not have 8-pin connector on 300W supply, it will work but just to be on safer side.

 

[Mussels]

I suggested him to go for higher PSU because he will be able to get full potential of his components & in case of future upgrades will have good PSU.
In any case going for 430W or 500W PSU will be a safe bet than 300W. He also do not have 8-pin connector on 300W supply, it will work but just to be on safer side.

How does a PSU alter the 'potential' of his PC? PSU's do not affect performance.

 

[pbm86]

There are 300W PSUs that deliver very few amps on the 12V line. A good 300W PSU should deliver over 20A on the 12V. Some PSUs exists that are so cheap and crappy that they can't even deliver what is written on the label. At least not continuously.

 

[GreiverBlade]

PSU's do not affect performance.

unless OC headroom ... but in the op's case it does not matter at all (just like with my i3-4130T + GTX860M on 140w PSU )

 

[BoyGenius]

How does a PSU alter the 'potential' of his PC? PSU's do not affect performance.

I never said that i meant from above statement that if power supply is enough CPU will not downclock & may perform to its level pf performance. You just misinterpreted it.
An i3 will perform as i3, it will not be an i7 even with 1000W PSU. How ever it may not perform to i3 level in case of insufficient power.

 

[Komshija]

For GTX750 Ti and i3 with a couple of standard comnponents you need minimum 290-300W during the load. It means that during the full load this poor PSU will not be able to keep up. Quality 300W PSU usually delivers effective 280W, so forget about 300W and even 350W PSU regardless of theis "80+ ...." badges. These PSU's are ancient history and not to be used in a modern PC.

Quality 400W PSU with minimum "80+ Gold" certification and no less than 380W actual power (about 32A) on a single +12V rail would be minimum for that system. If you plan any future upgrades, take at least 550W "80+ Bronze" PSU with single +12V rail capable supplying no less than 500 W actual power and no less than 41A.

 

[Frick]

I never said that i meant from above statement that if power supply is enough CPU will not downclock & may perform to its level pf performance. You just misinterpreted it.
An i3 will perform as i3, it will not be an i7 even with 1000W PSU. How ever it may not perform to i3 level in case of insufficient power.

If the power is not enough, it'll get unstable, or the PSU will burn out early.

For GTX750 Ti and i3 with a couple of standard comnponents you need minimum 290-300W during the load. It means that during the full load this poor PSU will not be able to keep up. Quality 300W PSU usually delivers effective 280W, so forget about 300W and even 350W PSU regardless of theis "80+ ...." badges. These PSU's are ancient history and not to be used in a modern PC.

Quality 400W PSU with minimum "80+ Gold" certification and no less than 380W actual power (about 32A) on a single +12V rail would be minimum for that system. If you plan any future upgrades, take at least 550W "80+ Bronze" PSU with single +12V rail capable supplying no less than 500 W actual power and no less than 41A.

1. As stated, the OPs system will not pull 300W.
2. We know nothing of the OPs PSU. If it's one of them old FSP units it might even be pretty good.
3. Multi rail is fine.

 

[Komshija]

If the power is not enough, it'll get unstable, or the PSU will burn out early.



1. As stated, the OPs system will not pull 300W.
2. We know nothing of the OPs PSU. If it's one of them old FSP units it might even be pretty good.
3. Multi rail is fine.

With 1 SSD, 1 HDD, 4 high-performance 120mm fans, and one USB device attached (not counting mouse and keyboard) it will consume 290-300W in full load during some intensive tasks, so 300W PSU will be inadequate. PSU's are not capable delivering claimed wattage, but deliver either slightly or significantly less, regardless of their certifications or brands/companies who made them. It's always recommended to have a single +12V rail rather than multiple and at least 50W more than your entire components can draw during high load.

Either way, with 300W and even with 430W his future upgrades are limited to low-end components only.

 

[GreiverBlade]

2. We know nothing of the OPs PSU. If it's one of them old FSP units it might even be pretty good.

i have a old FSP unit 250w that used to hold just fine a setup made of a C2D E8500 @ 4.0 on a Striker Extreme and a 8800 Ultra (temporary nonetheless ) FSP even old can be quite the good one

For GTX750 Ti and i3 with a couple of standard comnponents you need minimum 290-300W during the load. It means that during the full load this poor PSU will not be able to keep up. Quality 300W PSU usually delivers effective 280W, so forget about 300W and even 350W PSU regardless of theis "80+ ...." badges. These PSU's are ancient history and not to be used in a modern PC.

Quality 400W PSU with minimum "80+ Gold" certification and no less than 380W actual power (about 32A) on a single +12V rail would be minimum for that system. If you plan any future upgrades, take at least 550W "80+ Bronze" PSU with single +12V rail capable supplying no less than 500 W actual power and no less than 41A.

well as i stated two time here my Alpha i3-4130T+GTX860M (Maxwell) integrated AC wifi SSHD plugged on board fan for CPU/GPU plus some "power drawing" component, like a ext USB3.0 HDD wireless keyboard ext numpad ext ODD XbOne receiver does perfectly fine on a 140W brick ( ok CPU is 2.9ghz max but the GPU is @ 1155/1933 )

 

[64K]

I'm not sure how future upgrades has a bearing in this thread. OP already has a 300 watt PSU and wants to know if a 750 Ti would overload the +12 V rail. The 750 Ti requires little power. Unless the PSU is garbage then they should be fine adding a 750 Ti.

With 1 SSD, 1 HDD, 4 high-performance 120mm fans, and one USB device attached (not counting mouse and keyboard) it will consume 290-300W in full load during some intensive tasks, so 300W PSU will be inadequate. PSU's are not capable delivering claimed wattage, but deliver either slightly or significantly less, regardless of their certifications or brands/companies who made them. It's always recommended to have a single +12V rail rather than multiple and at least 50W more than your entire components can draw during high load.

Either way, with 300W and even with 430W his future upgrades are limited to low-end components only.

Where in the world are you getting are you getting 290-300 watts at peak from?

 

[Jetster]

My thought, if you can afford a i3 4150 and a GTX 750 ti then you can get a proper PSU. Quality 400watt will do

 

[Komshija]

@64K : There are many websites where you can calculate how much wattage your PC will draw at maximum load.

 

[64K]

@64K : There are many websites where you can calculate how much wattage your PC will draw at maximum load.

Those Wattage Calculators are unreliable.

Here's a hands on review with a 4960X which uses considerably more power than the OP CPU

http://www.anandtech.com/show/7764/the-nvidia-geforce-gtx-750-ti-and-gtx-750-review-maxwell/22

 

[Komshija]

Those Wattage Calculators are unreliable.

Here's a hands on review with a 4960X which uses considerably more power than the OP CPU

http://www.anandtech.com/show/7764/the-nvidia-geforce-gtx-750-ti-and-gtx-750-review-maxwell/22

So, for the example, you would say that outervision PSU calculator is not reliable? I beg to differ.

 

[64K]

So, for the example, you would say that outervision PSU calculator is not reliable? I beg to differ.

I'm saying that Wattage Calculators are unreliable and usually exaggerate the wattage required. It is better to use a tech site that has hands on tested a GPU like this one

http://www.anandtech.com/show/7764/the-nvidia-geforce-gtx-750-ti-and-gtx-750-review-maxwell/22

 

[silentbogo]

If you have a decent 350 PSU - it should be more than enough.
You can also safely use 4-pin connector on an 8 pin slot, since there is no way to hook it up incorrectly (if the latch is on top, it should be the right-most position), but some PSUs have flimsy and soft connectors and can be forced to fit anywhere

Make sure that your CPU power connector is in the right position like this:


BTW, this is an AsRock A88X Extreme4+ with A6-5400K and GTX660 running off an old and shitty 400W SFX PSU(hooked up for testing today).

 

[GreiverBlade]

So, for the example, you would say that outervision PSU calculator is not reliable? I beg to differ.

well ... i use it sometime ... yet i always confirm that the recommended wattage needed is exaggerated

little example with my current main rig setup at 100% load and 8hrs a day setting
Load Wattage:416 W
Recommended UPS rating:800 VA
Recommended PSU Wattage:466 W

(ok ... i have a 750w ... well got a price on that Seasonic so, i kinda did bite the bullet ) but i did ran on a 450w spare psu without any issues

another setup with 2 OC'ed GTX 580 (Matrix Platinum) and a Xeon E3-1275v2 @ 4.0
Load Wattage:766 W
Recommended UPS rating:1400 VA
Recommended PSU Wattage:816 W

(was running easily on a 700w PSU at the time, a InWin Commander III Desert Fox gold )

I'm saying that Wattage Calculators are unreliable and usually exaggerate the wattage required. It is better to use a tech site that has hands on tested a GPU like this one

http://www.anandtech.com/show/7764/the-nvidia-geforce-gtx-750-ti-and-gtx-750-review-maxwell/22

unreliable not really ... exaggerating, most of the time yes ... i think it's rather for keeping"beginner" builder on the safe side (oversafe i should say )

also manufacturer tend to exaggerate power needed too, i.e.: ASUS recommended a 700W for a single 580 Matrix Platinum @ stock , yet i ran 2 of them quite OC'ed on one