Without a PSU you won’t be able to start your computer. PSU or SMPS supplies power to almost all the important components of your PC that include a processor, motherboard, memory, hard disk, fans, graphics card, and other peripheral devices & components. Power Supply or PSU is one of the most important components of a PC. Thank you for supporting the work I put into this site!) But there is no need to upgrade it now if it provides more than what you need.(*This post may contain affiliate links, which means I may receive a small commission if you choose to purchase through the links I provide (at no extra cost to you). A computer PSU is a switching power supply that only draws the amount of power you need, so it does not really hurt to have one oversize if planning for future upgrades. There are some cheap overrated PSU's out there. On the other hand an HP PC from 2004 with 250 watt PSU could not even boot 130 watts after a mild graphics card upgrade (measured after upgrading to conservative 330 watt PSU). That PSU did not even have a 6-pin plug, I had to use an adapter for (2) IDE power connections to 6-pin. When I had damaged one of the legs on my CPU cooler upgrading from i5 650 to the i7 870, measured AC input was 236 watts max and after replacing the CPU cooler I never saw it go over 220 watts (input) for Unigine Heaven benchmark using Extreme settings 1080p.Īnd even an older Dell 305 watt PSU can handle that, because when I put my 116 watt GTX 550 Ti in an old Dell with single core Pentium 3.2 GHz that did not even do SpeedStep, it had no problem using 240 watts measured. I am running an old 95 watt i7 870 and 120 watt GTX 1060 with Dell OEM 350 watt PSU.
It just depends whether it is a decent PSU or overrated. This tends to be the item that a lot of folks cheap out on but keep in mind this is whats going to be supplying power to all of those expensive components inside your case. You can probably get away with 500w here as long as you don't buy a cheap inefficient PSU. The manufacture recommendations don't account for full system load. I pretty much don't install anything under 750w with modern GPUs. So if your PC uses 150 Watts without the video card, you will need a 450 Watt power supply to run the GTX1060 under normal usage (read not boosted.Minecraft, Netflix in 1080p, Youtube in 1080p.etcetera etcetera) loads.and possible a 600Watt to 750Watt PSU to supliment for full gaming load.Įxactly. That 300 watt recommendation for the GTX1060 is adding to your system's total wattage under normal GPU load. The suggested wattage required by a video card manufacturer is usually not indicative of the total wattage already used up by other componenets in a User's PC. Why exactly? The system with a 1060 will barely use 300w
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