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Do I need to upgrade my PSU?

SkeletonWoods
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I have a pre-built computer that has an i5-7400, GTX 1060, 8 GB of RAM, but only a 300 watt power supply. I want to buy a 1tb SSD to put in my computer along with the hard drive that it came with and I am also thinking about getting 16 gigs of RAM but I don't know how much power an SSD and 8 more gigs of RAM would take. Do I need to buy a better power supply first or is 300 watts enough?

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SSDs and RAM use a tiny amount of power, probably at most 15W. Most of your power draw is from CPU and GPU.

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no you should be fine, besides any off the shelf psu wouldnt fit without a simple modifictions

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Alright 300 watts just doesn't seem like a lot so I thought that I might need an upgrade before that before anything else, thanks for the help.

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14 minutes ago, Canada EH said:

no you should be fine, besides any off the shelf psu wouldnt fit without a simple modifictions

depends on the brand of pre-built. Even brands with proprietary motherboards usually use standard ATX PSUs

Primary PC: - https://pcpartpicker.com/list/8G3tXv (Windows 10 Home)

HTPC: - https://pcpartpicker.com/list/KdBb4n (Windows 10 Home)
Server: Dell Precision T7500 - Dual Xeon X5660's, 44GB ECC DDR3, Dell Nvidia GTX 645 (Windows Server 2019 Standard)      

*SLI Rig* - i7-920, MSI-X58 Platinum SLI, 12GB DDR3, Dual EVGA GTX 260 Core 216 in SLI - https://pcpartpicker.com/list/GHw6vW (Windows 7 Pro)

HP DC7900 - Core 2 Duo E8400, 4GB DDR2, Nvidia GeForce 8600 GT (Windows Vista)

Compaq Presario 5000 - Pentium 4 1.7Ghz, 1.7GB SDR, PowerColor Radeon 9600 Pro (Windows XP x86 Pro)
Compaq Presario 8772 - Pentium MMX 200Mhz, 48MB PC66, 6GB Quantum HDD, "8GB" HP SATA SSD adapted to IDE (Windows 98 SE)

Asus M32AD - Intel i3-4170, 8GB DDR3, 250GB Seagate 2.5" HDD (converting to SSD soon), EVGA GeForce GTS 250, OEM 350W PSU (Windows 10 Core)

*Haswell Tower* https://pcpartpicker.com/list/3vw6vW (Windows 10 Home)

*ITX Box* - https://pcpartpicker.com/list/r36s6R (Windows 10 Education)

Dell Dimension XPS B800 - Pentium 3 800Mhz, RDRAM

In progress projects:

*Skylake Tower* - Pentium G4400, Asus H110

*Trash Can* - AMD A4-6300

*GPU Test Bench*

*Pfsense router* - Pentium G3220, Asrock H97m Pro A4, 4GB DDR3

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1 hour ago, Eastman51 said:

brand of pre-built

well prebuilt's are different then oem's like Dell or HP.

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