The PSU is the least glamorous part in your PC — and the one every other part depends on. We upgrade undersized, aging, and bargain-bin power supplies with quality units sized for your build, so your graphics card upgrade is possible and your components are protected.
Labor for Any PC Upgrade Service
Coupon Code: UPGRADE25
New customers only. Valid for $25 off labor on a PC upgrade service at Dave’s Computers. Parts and taxes are not included. One coupon per customer. Present before service begins. Cannot be combined with other offers. No cash value.
I’m Dave, and after fifteen years on this bench I can tell you: more dead machines trace back to a bad or overworked power supply than almost anything else. Here are the three situations that bring PSU jobs through my door in Somerville:
You want a better graphics card, but your tower shipped with a small power supply — the classic Dell and HP trap, where 310–460W factory units (sometimes proprietary) block any meaningful GPU upgrade. We check wattage, connectors, and physical fit, then price the PSU and GPU together so there are no mid-job surprises.
The no-name power supplies inside many bargain gaming prebuilts are where the savings came from — and when they fail, they can take other parts with them. Swapping one for a quality unit is some of the best insurance money can buy for an iBUYPOWER or CyberPowerPC rig you otherwise like.
Crashes or restarts under load — heavy gaming, exports, stress — while light use is fine? An aging or undersized PSU sagging under demand is a prime suspect. We test rather than guess; if it turns out to be heat instead, that’s a cooler problem, and our bottleneck check tells them apart.
Planning a bigger refresh? A PSU swap pairs naturally with a CPU upgrade or GPU upgrade in the same visit — see everything on our PC upgrade service page.
We inventory your components and your upgrade plans, then calculate the wattage and connectors the machine actually needs.
A quality PSU that fits your case, with the full parts-plus-labor price before anything is ordered.
Clean installation, tidy cable routing, and a full-load test so it leaves the bench proven, not assumed.
The common triggers: you are adding a stronger graphics card, your PC crashes or restarts under heavy load, or your budget prebuilt shipped with a no-name unit. We test the machine and give you a straight answer rather than selling wattage you do not need.
Often yes, but this is exactly where the traps live — some models use nonstandard sizes or connectors. We check your specific model first, and if a standard upgrade is not possible, we tell you what your real options are before you spend anything.
It depends on your components and your upgrade plans, which is why we size from your actual build rather than quoting a number over the phone. Oversizing wastes money; undersizing risks the whole machine.
A failing low-quality unit can, and I have seen it take motherboards and drives with it. That is why the PSU is the one component where quality is non-negotiable on my bench.
Usually same or next day once the unit is in hand — careful cabling and load testing included. We will confirm the timeline with your quote.
Bring your desktop to Dave’s Computers in Somerville for a power supply upgrade sized right, installed clean, and tested under load.
Dave’s Computers · 75 N Bridge St, Somerville, NJ 08876 · Serving Somerset, Hunterdon, Middlesex & Mercer Counties since 2011