Are there any PSUs designed for running just a graphics card?

[Rainbutalsolonnie]

So because I'm a cheap shit and can't really be bothered with building a pc, i bought a cheap Lenovo E73 10as PC from ebay planning to stick a GPU in it and upgrade the i3-4130 at a later date, but i realised that the 280w psu barely runs the PC itself. I'm looking at sticking a 1050ti or that level of GPU in it, so i'm wondering if theres any psus where i wont have to stick a paperclip in the motherboard cable to get them to run a six pin connector?

[Rainbutalsolonnie]

If not, how big a psu would i need for a single Gpu?

[Megah3rtz]

A regular power supply. Just use the 6pin only? You can find good power supplies for like 40$. 

[Zando_]

The 1050 Ti pulls power from the PCIe slot, AFAIK. 

[Rainbutalsolonnie]

Just now, Zando Bob said:

The 1050 Ti pulls power from the PCIe slot, AFAIK. 

So i'd be limited to Cards with a six pin connector, because i'm definite my PSU wont power it

[Jurrunio]

A gt 1030 should be enough if esports games are the only ones you play. It's similar to the old 750ti in performance, but only sips 30w of power. If you want a 1050ti, it's better to get a new PSU. A good 400~450W one costs less than $50.

[Rainbutalsolonnie]

Just now, Jurrunio said:

A gt 1030 should be enough if esports games are the only ones you play. It's similar to the old 750ti in performance, but only sips 30w of power. If you want a 1050ti, it's better to get a new PSU. A good 400~450W one costs less than $50.

The problem is the thinkcentre e73 is prebuilt it has a weird size psu and i probably can't replace it without replacing the case

[Jurrunio]

Just now, Rainbutalsolonnie said:

The problem is the thinkcentre e73 is prebuilt it has a weird size psu and i probably can't replace it without replacing the case

You can leave the new PSU outside the case if appearace is not a concern.

 

It could be that the PSU is SFX standard. You can have a look at that.

[quan289]

2 hours ago, Rainbutalsolonnie said:

So because I'm a cheap shit and can't really be bothered with building a pc, i bought a cheap Lenovo E73 10as PC from ebay planning to stick a GPU in it and upgrade the i3-4130 at a later date, but i realised that the 280w psu barely runs the PC itself. I'm looking at sticking a 1050ti or that level of GPU in it, so i'm wondering if theres any psus where i wont have to stick a paperclip in the motherboard cable to get them to run a six pin connector?

A lot of Lenovo PSUs uses are proprietary design with 12V only (with the +5.08VSB rail), where there's another buck convertor on the motherboard that generate the 5V / 3.3V from the 12V rail for components that needs it. Even if the PSU uses the standard ATX or SFX form factor, you won't be able to used it unless you do some rewiring or get an adapter.

 

Anyways, the 1050 Ti has a power draw of <75wDC. Even with the low-power model of the i7-4770S processor, that Lenovo PSU should be able to power that with your system.

[Rainbutalsolonnie]

2 hours ago, quan289 said:

lot of Lenovo PSUs uses are proprietary design with 12V only (with the +5.08VSB rail), where there's another buck convertor on the motherboard that generate the 5V / 3.3V from the 12V rail for components that needs it.

I'm gonna be 100% honest i have no idea what that means. Do adapters like that exist or nah?

[quan289]

10 minutes ago, Rainbutalsolonnie said:

I'm gonna be 100% honest i have no idea what that means. Do adapters like that exist or nah?

I was saying that since the Lenovo doesn't follow industry standard (which I believe uses a 14 pin setup rather than the 24 pin standard), you can't simply change the PSU as someone was stating. You would need to buy an appropriate adapter such as one found at Moddiy [LINK] that's is capable with your computer, and then you can buy something like the Corsair CX450M power your system with a more demanding GPU.

 

Like I had said though, the GTX 1050 Ti how draw under 75wDC by itself as shown at TPU [LINK]. Combined with a system with a low-power Haswell CPU [LINK], you shouldn't need to replace the PSU. For further valiadation, HardOCP had tested the MSI 1050Ti in a system with an overclocked i7-6700k @ 4.7GHz and had seen a power draw of 162wAC at the wall (relevant DC power draw will be less than that due to efficiency of the power supply) [LINK].