Memory upgrade

[Davyboy571]

My PC has a Pegatron IPISB-CH2 Chicago motherboard and I want to increase the amount of memory in my PC to 16gb. It currently has 6gb fitted using 2 modules (1x4gb & 1x2gb). It currently runs Windows 10 with the 21h1 update. Can I fit 2 X 8gb memory modules or do I have to use 4 X 4gb modules? The manual suggests the latter but I was wondering why 2 X 8gb couldn't be used. Thank you in advance for your reply.

[Prométhée]

hi

So you read this:

https://support.hp.com/us-en/product/hp-pavilion-hpe-h8-1100-desktop-pc-series/5146418/document/c028...

• Dual channel memory architecture (also supports single channel)
• Four 240-pin DDR3 DIMM sockets
• Supports the following:
  • PC3-8500 (DDR3-1066)
  • PC3-10600 (DDR3-1333)
• Non-ECC memory only, unbuffered
• Supports 1 GB, 2 GB, and 4 GB DIMMs
• Supports up to 4 GB on 32-bit* systems
• Supports up to 16 GB on 64-bit systems

note:

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

try the crucial scan here

Welcome to Crucial USA
I have a doubt, because you have four slots, so if the max is 16gb, and you can only use 4gb max, indeed 4x4
but it is possible that you can install 32gb, in this case 8gb per slot
It may be possible to install 2 * 8gb, with a max of 16gb
in this case using the other two slots should not work
check what the difference can be for 4go modules (x4)
and for 8 GB modules
if not, take the most advantageous, if there is a difference, if it does not work the resellers do not make problems for the exchange if it does not work in general

[Davyboy571]

Thanks Prométhée, it's still not a definitive answer. If I fit 2x8gb will it work?

[Prométhée]

reread my answer carefully @Davyboy571 
did you try the scan ...

[Davyboy571]

Yes I did and it said to remove the 2gb module and fit 3 new 4gb modules. Does that mean 2 X 8gb modules will not work?

[Prométhée · Accepted solution]

show me a screenshot of the result of this scan.

but yes, according to the characteristics given by hp it is very possible

[Davyboy571]

Thanks, I'll go with the 3 X 4gb option.