Thermal paste dries out over the years — and your PC pays for it with climbing temperatures, roaring fans, and quiet slowdowns. A proper repaste is one of the least expensive services on my bench and one of the most dramatic. We prove it with before-and-after numbers.
Thermal paste is the thin layer that carries heat from your CPU (and GPU) into the cooler. Fresh, it works beautifully. Three to five years in — sooner in hot-running gaming rigs — it dries, cracks, and stops doing its job. I’m Dave, and here’s what dried paste looks like from the owner’s chair:
The machine ran cool and quiet for years, and somewhere along the way the fans got louder and the performance got worse. Nothing broke — the paste just quietly gave up.
Temperatures spiking into the 90s°C during games or heavy work, with the CPU throttling itself to survive. Compact gaming rigs — the HP Omen line is a regular on my bench for this — are especially prone.
The machine turns itself off mid-game or mid-render to protect the chip. If ignoring it sounds tempting, remember: sustained heat shortens the life of everything in the case.
The reason DIY repastes disappoint is that the paste is only half the job:
If testing shows the cooler itself is failing — a dying AIO pump, an undersized stock unit — a repaste alone won’t save it, and we’ll quote a CPU cooler upgrade honestly instead. Not sure heat is even your problem? The PC bottleneck check settles it, and our PC upgrade service page covers everything else while the case is open.
We log your temperatures under load first, so the improvement is measured — not assumed.
Old compound removed completely, premium paste applied correctly, cooler remounted with even pressure, case dusted out.
The same load test again — you see the before-and-after numbers when you pick the machine up.
For most machines, somewhere in the three-to-five-year range — sooner for hot-running gaming rigs and compact prebuilts. If your temperatures have crept up over time, the age of the paste is a prime suspect regardless of the calendar.
If heat is currently forcing your CPU or GPU to throttle, yes — the chips get to run at full speed again, and the fans usually quiet down too. If your temperatures are already healthy, we will tell you a repaste is not what you need.
Very much so — laptops run hotter and their paste ages faster. A laptop repaste with a thorough fan and vent cleaning is one of the best things you can do for an aging machine that runs hot and loud.
Please do not — stacking new compound over dried, cracked paste traps heat and often makes temperatures worse. Full removal and clean application is the whole job.
It is one of the most affordable services on the bench, and we quote it upfront before any work begins. If the machine turns out to need more than paste — a failing cooler, for instance — you get that finding and an honest price before deciding.
Bring your desktop or laptop to Dave’s Computers in Somerville for a proper repaste — measured before, done right, and measured after.
Dave’s Computers · 75 N Bridge St, Somerville, NJ 08876 · Serving Somerset, Hunterdon, Middlesex & Mercer Counties since 2011