Inside HP 255 G9 – disassembly and upgrade options

As usual, this series is a bit hard to open, but you get quite the reward inside.

Check out all HP 255 G9 prices and configurations in our Specs System or read more in our In-Depth review.

1. Remove the bottom plate

To access this notebook’s internals, you need to undo two Phillips-head screws. Then, remove the two rubber feet and undo the rest of the Phillips-head screws. After that, open the lid and gently pop the bottom panel with a plastic tool.

2. Battery

Inside, you will see a very familiar 41Wh battery pack. It lasts for 10 hours and 30 minutes of Web browsing, or almost 8 hours of video playback. To take it out, remove the four Phillips-head screws keeping it attached to the chassis.

3. Memory and storage

Memory-wise, there are two SODIMM slots, which work with up to 32GB of DDR4 memory in total. As for the storage, you can see an M.2 PCIe x4 slot for Gen 3 SSDs, and a 2.5-inch SATA drive bay, without the necessary mounting equipment.

4. Cooling system

In terms of cooling, the laptop has one heat pipe, connected to a pretty big heat sink, where a medium-sized fan blows the heat away.

Check out all HP 255 G9 prices and configurations in our Specs System or read more in our In-Depth review.

HP 250 G9 / 255 G9 in-depth review

Hot out of the oven comes the HP 255 G9. It is a laptop suitable for the home and the office (or the home office), as it features pretty capable hardware at a price, which is almost unbeatable in its class.But what is its class? Well, it comprises notebooks like the Dell's Vostro 15 3525, Lenovo's V15, or Acer's Aspire 3. As a rule of thumb, budget-friendly devices require a lot of compromises, especially if you want to get decent-enough hardware.Of course, this is the case here. Knowing that AMD's RDNA2 graphics architecture will make the Ryzen 6000U processors more expensive, HP pic[...]


  • Low price
  • 2x SODIMM + 1x M.2 PCIe x4 + 1x 2.5-inch SATA drive bay
  • SD card slot
  • No PWM (AUO AUO499F)
  • Good cooling and power efficiency
  • Comfortable keyboard
  • Fingerprint reader


  • Covers only 50% of sRGB (AUO AUO499F)
  • Narrow viewing angles and low contrast ratio (AUO AUO499F)
  • USB Type-C is only used for data transfer
  • Plastic build
  • Touchpad buttons are slightly uncomfortable
Notify of
Inline Feedbacks
View all comments
1 year ago

How to Install Additional SATA hdd on this

Nagy Zoran
Nagy Zoran
4 months ago
Reply to  SamarD

Hi for all users!
I have an HP 255 G9 (6A1A7EA) laptop.

The sh*tty HP manufacturer does not provide a SATA cable with this laptop!
Therefore, you have to order a SATA cable “LS-H323P” on AliExpress or Ebay.
I bought it for 12 EUR.

The “LS-H323P” can be used in HP 255 G8 and HP 255 G9 laptops.
NOT good for HP 255 G10 laptop.

With this cable solution you can connect inside in laptop maximum a 2TB SATA HDD or SATA SSD.

F*ck HP manufacturer for this issue!
Greetings from Serbia and Happy warez/hacking/modding!

1 year ago

Please tell us how to install additional sata ssd on this laptop