Inside Acer Predator Helios 300 (PH315-55) – disassembly and upgrade options

It’s good to see that Acer provided you with a lot of upgrade choices. Furthermore, the two SODIMM slots work with the faster DDR5 memory, unlike the Nitro 5 (AN515-58), which comes with DDR4 RAM.

Check out all Acer Predator Helios 300 (PH315-55) prices and configurations in our Specs System or read more in our In-Depth review.

1. Remove the bottom plate

To get inside this device, you need to undo 11 Phillips-head screws. Then, pry the bottom panel with a plastic tool and lift it away from the machine.

2. Battery

Inside, we found a 90.6Wh battery pack. You can easily remove it by unplugging the connector from the motherboard, and eventually undoing two Phillips-head screws.

3. Memory and storage

To access the memory, you have to take out the metal bracket. It is held in place by one Phillips-head screw and a couple of clips. Once you remove it, you will have access to two RAM SODIMM slots, which work with DDR5 modules. As for the storage, you get two M.2 PCIe x4 slots, both of which can fit Gen 4 drives.

4. Cooling system

In terms of cooling, you get two heat pipes shared between the CPU and the GPU. The processor gets one more, while the GPU is treated to two additional heat pipes. Moreover, the graphics memory and the VRMs have a metal heat spreader, while two fans blow the heat away from the machine.

Check out all Acer Predator Helios 300 (PH315-55) prices and configurations in our Specs System or read more in our In-Depth review.

Acer Predator Helios 300 (PH315-55) in-depth review

Acer is the creator of one of the most stable gaming notebooks on the market. Year after year, iteration after iteration, the Helios 300 just delivers. Not only that, but Acer seems to sneak in a small upgrade (besides the hardware one) every year, which sometimes makes us ask - what will they do when they run out of ideas? Anyways, today we have the Helios 300 (PH315-55).Right from the get-go, we would like to start with a disclaimer. Since this was a very early engineering sample from Acer, it arrived with unfinalized firmware. Due to that, we couldn't test any performance metrics and t[...]


  • Thunderbolt 4 + HDMI + Mini DisplayPort
  • Liquid metal
  • 2x SODIMM, 2x M.2 PCIe x4 Gen 4 slots
  • 100% sRGB coverage and accurate color representation with our Gaming and Web design profile (BOE NV156FHM-NY0 (BOE0ABF))
  • Quick pixel response times (BOE NV156FHM-NY0 (BOE0ABF))


  • Lacks an SD card reader
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