Wil running my GPU with a low PSU do any harm?

[Emillionaire]

Hi forum, 

i just bought a used EVGA 750TI FTW (saw it working when i bought it.) 
There is a 6-pin connecter on the card, so i need a new PSU for it. 

I saw a comment on youtube, that somebody uses it without a 6-pin connecter, so is it possible for me to run it without the 6-pin connecter?
I just wish to check that its working properly. I will get a new PSU from my friend in 10 hours. 

If it needs more power than my current PSU gives, will i then just get a warning, or no boot, or will i ruin anything? 

 

Thx. 

[Godlygamer23]

PCIe slots can only provide a maximum of 75W of power. If the card doesn't get enough power, it'll complain about it and maybe display it on the screen for you(mostly dealing with the lack of a supplemental connector).

[App4that]

Yes, if I follow you correctly you want to power it through the PCI slot. Not without a power supply rated for it.

[SADDAM11]

it would not boot ur system or it would randomly shut down

go on your graphics card specs and see how much wattage you need 

[Emillionaire]

I dont think that my current PSU has enough watt to run it. 
I just wished to insure that it was running. 
But i will just wait until the morning (10 hours from now) 

and pick a new psu up from my friend. 

[Allshevski]

Don't run it without the 6 pin, it can burn your motherboard traces or just don't work, these connectors are especially made for delivering power that motherboard can't. Just wait these 10 hours, make yourself some tea in the meantime.

 

No single GPU card on the market needs more than 250 watts, your is lower end so I think you could run it with 400 watt PSU as well.

 

But if your PSU is not good enough it all depends on luck and PSU brand. No-names can even burn your house, break everything in your PC or just do nothing. Branded PSUs from good series like Seasonic aren't likely to fail tragically. But if your current one doesn't have 6 pin, it's probably old, no-name or doesn't provide enough power.

[Energycore]

12 minutes ago, L0gic said:

snip

You can use a 2 molex to 6 pin adapter for the additional power. Something like this

 

But please make sure the PSU can carry the card's power consumption (750 Tis don't consume more than 80Ws so you should be fine) and as soon as you have some money to upgrade the power supply, do it. You'll find good quality PSUs starting at €43 ish and you can ask for a recommendation over at our thread

 

[DXMember]

you will get no boot with beep codes pointing to insufficient VGA power