Memory frequency match

[RPolk11]

I have the HP Pavilion Desktop TP01=2000A. It has 16 GB of 3600 MHz memory. Do I need to upgrade with memory that is also 3600MHz? And what is UDIM and how does it compare with SO-DIMM or SDRAM.

[Prométhée]

hi

https://support.hp.com/us-en/product/hp-pavilion-desktop-pc-tp01-2000a/2100367768/model/2100367779/p...

do you have your model here?
To have a chance of being compatible, you must use the exact same modules
check with this

CPU-Z | Softwares | CPUID

Possible more than 16 gb, not useful, check

How to identify what is slowing down the computer

here, two motherboards

• Motherboard Specifications, Erica5
• Dual channel memory architecture (One DIMM per channel)
• Two DDR4 UDIMM (288-pin) sockets
• Supports up to PC4-25600 (DDR4-3200)
• Supports 4 GB and 8 GB DDR4 UDIMMs
• Supports up to 4 GB on 32-bit systems

  note:

  32-bit systems cannot address a full 4.0 GB of memory.

• Supports up to 32 GB (unbuffered) with two 16 GB DIMMs on 64-bit systems
•  Motherboard Specifications, Erica6
•  
• Dual channel memory architecture (One DIMM per channel)
• Two DDR4 UDIMM (288-pin) sockets
• Supports up to PC4-25600 (DDR4-3200)
• Supports 4 GB and 8 GB DDR4 UDIMMs
• Supports up to 4 GB on 32-bit systems

  note:

  32-bit systems cannot address a full 4.0 GB of memory.

• Supports up to 32 GB (unbuffered) with two 16 GB DIMMs on 64-bit systems
•