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PTM7950 31x50x0.25mm Phase Change Thermal Pad, JOYJOM High Conductive Silicone Grease 8.5W/mK CPU Thermal Paste for PS5 Steam Deck ROG Ally CPU GPU SSD M.2 Laptop
JOYJOM

JOYJOM PTM7950 31x50x0.25mm Phase Change Thermal Pad

Bottom line: The JOYJOM PTM7950 31x50x0.25mm Phase Change Thermal Pad ($8.39 on Amazon as of 2026-10-06): PTM7950 phase-change material, 8.5 W/mK conductivity; main trade-off: requires disassembly skill; not beginner-friendly.

$8.39

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Buy on Amazon — $8.39 Compare to similar retro cpu coolers & fans

By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ PTM7950 phase-change material, 8.5 W/mK conductivity
  • ✓ Outlasts paste — no pump-out or drying over time
  • ✓ Fits PS5, Steam Deck, ROG Ally, laptops, M.2 SSDs
  • ✓ Full kit: spatula, screwdriver, wipe, brush, gloves

Cons

  • ✗ Requires disassembly skill; not beginner-friendly
  • ✗ Phase-changes at 45C — melting is expected behavior
  • ✗ Single 31x50mm sheet limits number of applications
  • ✗ Needs surface cleaning before install for best contact

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SpecPicks Verdict

SpecPicks scored JOYJOM PTM7950 31x50x0.25mm Phase Change Thermal Pad using a rating × review-volume × price-fit model applied to published specs and reviews across the retro cpu coolers & fans category. JOYJOM's retro cpu coolers & fans lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for retro cpu coolers & fans of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • PTM7950 is a highly thermally conductive Phase Change Material (PCM) that lasts longer and is more effective than tradiational thermal paste.
  • Size 31x50x0.25mm, Phase change at 45°C, Thermal Conductivity: 8.5 W/m.K, It is normal for it to melt at high temperatures.It achieves good heat dissipation performance through repeated melting and solidification. Note: it requires technical and operational skills, it is recommended to use under the guidance of professionals
  • PTM7950 is a proprietary material that provides superior reliability (pass 150˚C baking 1000 hours, T/C-B 1000 cycles) and maintains low thermal impedance (<0.04˚Ccm2/W @ no shim), making the PTM7950 series desirable for high performance integrated circuit devices.
  • PTM7950, based on a novel polymer PCM system, exhibits excellent interface wetability during typical operating temperature ranges, resulting in extremely low surface contact resistance.
  • Package include: 1x PTM7950 Thermal Pad 31x50x0.25mm, 1x Screwdriver, 1x Cleaning Wipe, 1x Spatula, Finger gloves, 1x Cleaning Brush

Full Specifications

BrandJOYJOM
Model31x50x0.2mm
CPU SocketLGA 771
Dimensions31x50x0.25mm
Part Number31x50x0.2mm
CompatibilityPS5
Mounting TypeDirect Contact
Package include1x PTM7950 Thermal Pad 31x50x0.25mm, 1x Screwdriver, 1x Cleaning Wipe, 1x Spatula, Finger gloves, 1x Cleaning Brush
Included Components1x PTM7950 Thermal Pad 31x50x0.25mm, and tools
Cooler Heatsink MaterialAluminum
Item Dimensions L x W x H1.97"L x 1.22"W x 0.01"H
Cooler Heatsink CompatibilityLGA 771
Full listing titlePTM7950 31x50x0.25mm Phase Change Thermal Pad, JOYJOM High Conductive Silicone Grease 8.5W/mK CPU Thermal Paste for PS5 Steam Deck ROG Ally CPU GPU SSD M.2 Laptop

Ready to buy?

PTM7950 31x50x0.25mm Phase Change Thermal Pad, JOYJOM High Conductive Silicone Grease 8.5W/mK CPU Thermal Paste for PS5 Steam Deck ROG Ally CPU GPU SSD M.2 Laptop is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $8.39

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

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PTM7950 31x50x0.25mm Phase Change Thermal Pad, JOYJOM High Conductive Silicone Grease 8.5W/mK CPU Thermal Paste for PS5 Steam Deck ROG Ally CPU GPU SSD M.2 Laptop
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