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‎05-16-2026 12:00 PM - edited ‎05-16-2026 12:06 PM

HP Recommended

Hi,

 

I have a HP Envy 15 ep 1085tx laptop.

Serial no. - 5CD151NFRL

 

Does my laptop have thunderbolt 3 ? and what is the maximum RAM I can upgrade to?

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3 REPLIES 3

‎05-16-2026 12:03 PM

HP Recommended

Hi:

 

That is a good question, and if you want an answer, please provide the full model number or product number of your notebook.

 

Find Your HP Laptop Name, Product Number, or Serial Number | HP Notebooks | HP Support

 

 

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‎05-16-2026 12:09 PM

HP Recommended

Hi 

 

Model - HP Envy 15 ep-1085 tx 

Serial no. 5CD151NFRL

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‎05-16-2026 12:31 PM

HP Recommended

Hi:

 

According to the product specs I could find, the model series has a Thunderbolt 4 port and supports up to 2 x 16 GB of memory.

 

HP only has the service manual for the older 15-ep0xxx model series available, and the only major difference is the processor generation, the memory speed which is 3200 MHz on your PC and 2933 MHz on the 15-ep0xxx, and the thunderbolt port is a 3 and not a 4.

 

Maintenance and Service Guide HP ENVY 15IMPORTANT! This document is intended for HP authorized servi...

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