a new PSU is a must as the link you provided shows the PSU currently in your system to supply only 14 Amps at 12 V, which is not enough for both the other 12 V draws of your system and that of a 750 Ti too.

SeaSonic SS-400ET Bronze 400W ATX12V V2.2/EPS12V 2.91 SLI Ready CrossFire Ready 80 PLUS BRONZE Certified Active PFC Power Supply - Ī new motherboard isn't necessary if all you want to do is install a 750 Ti video card. If your computer is ATX standard and you wish to use a 750 Ti, then a 400 W PSU should be sufficient - something like this, which provides up to 360 W 12 V: While you can wire a standard ATX PSU into a proprietary system it's a hassle and usually beyond the scope of the average user. You almost certainty would have to upgrade your PSU in order to upgrade your video card.īefore you even consider upgrading, however, you need to make sure that the computer uses standard power supply connectors as some do not. I've yet to install a significant video card upgrade on a proprietary computer without also having to upgrade the PSU.

Most proprietary PSUs provide only just enough power for the computer as shipped. Therefore, a system that mught hust run a GT620 may not run a 750 Ti. The GT620 is stated to use 49 Amps on average, whereas the 750 Ti is stated to use 60 W average (and Tom's Hardware found it actually drew 68 W while gaming). However, when they say this they are assuming a modern PSU that provides sufficient power at the necessary voltages, not a cheap older-tech OEM unit that adds up overstated watts for the 3.3 V and 5 V rails to get the total figure. The 750 Ti has a low power consumption but the GeForce site still recommends a 300 W PSU. The total wattage reported by the manufacturer for a power supply doesn't necessarily mean that the power supply in question will actually provide the necessary amperage at the proper voltage. Question: How does that work, and why + would the GTX750ti work with the supply I currently have seeing that the GT620 can? I compared the GT620 and GTX750ti, and they both require the same amount of minimum watt, so I though it could work, but then I checked my powersupply, and it has 220w as max, which confuses me because the GT620 require 300w. Yesterday I was watching a livestream where I discussed with some people in the chat, and they came with the great idea that I should try getting a GTX750ti instead, because it has a lower wattage needed and its pretty small (cheaper aswell) (getting to the real question soon). But when I checked the power supply and size, there was no way it could work. I started looking into it, and thought a GTX660 might be nice.

But I've realised that the graphics card it comes with isn't really good (Nvidia GT620), can't really play anything with nice graphics.

I've had a PB iMediaS2870 for over a year now, used it mainly for playing games and watching Youtube. Computer Model - Packard Bell iMedia S2870

Packard bell imedia specs