Quick Answer
If your i5-14400F is hitting 90C+ at stock loads, the thermal paste has likely dried out or pumped out. Reapply with a quality compound like Arctic MX-6 or Thermal Grizzly Kryonaut using a pea-sized dot, retorque the cooler in a star pattern, and temps should drop 8-15C.
Signs Your 14400F Paste Has Failed
The 14400F runs hot under sustained loads even though it's a 65W base TDP chip. If Cinebench R23 pushes core temps past 95C, fans ramp during light browsing, or your CPU throttles in games it never used to, the paste is the first suspect. Pre-applied paste from stock Intel coolers tends to dry inside 18-24 months, especially in Joburg's dry highveld climate. A fresh application is a R150-R350 fix that often saves you from buying a new cooler.
Step-by-Step Reapplication
Power down, unplug the PSU and discharge by holding the power button for 10 seconds. Remove the cooler, lifting straight up after a gentle twist to break the seal. Wipe both the IHS and cooler base with 99% isopropyl and a lint-free cloth, repeat until they're mirror-clean. Apply a single pea-sized dot of paste in the centre of the IHS. Lower the cooler straight down without sliding. Tighten the four screws in a diagonal star pattern, two turns each, until snug. Reboot and stress-test with Cinebench R23 for 10 minutes.
SA Buying and Mistake Tips
Locally, Arctic MX-6 sells for around R220, Thermal Grizzly Kryonaut around R350, and Noctua NT-H2 around R280. All three beat the stock paste by 5-10C. Avoid liquid metal on a 14400F, the IHS is nickel-plated copper and a small spill can short an LGA1700 board. Common mistakes: applying too much paste (you only need a pea), reusing the old TIM, mounting the cooler crooked, or skipping the BIOS fan curve update after the swap. Run HWiNFO64 for 24 hours after to confirm temps stabilise.
Frequently Asked Questions
What do I need to know about i5-14400F Thermal Paste Dry Reapplication?
Dried paste is normal after 18-24 months on stock coolers. A fresh quality compound costs under R350 in SA and brings load temps back into the 65-75C range, which keeps your boost clocks stable.
What are common mistakes when setting up i5-14400F Thermal Paste Dry Reapplication?
Over-applying paste, skipping the IPA cleanup, tightening screws in the wrong order, and forgetting to seat the cooler flush. Each of those leaves air gaps that ruin heat transfer.
Do I need special tools or parts in SA?
A Phillips #2 screwdriver, 99% isopropyl alcohol, lint-free cloths or coffee filters, and a tube of MX-6, NT-H2 or Kryonaut. All available locally with next-day shipping nationwide.
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