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‎06-08-2025 12:28 AM

HP Recommended

Hello HP Support,

 

I’m using an HP Elite Tower 800 G9 Desktop PC with an Intel Core i9-12900 CPU and HP 8AC1 motherboard.

 

My current working RAM module is the default green stick that came with the PC. Based on the sticker, it’s a:

• 16GB DDR5 5600 U-DIMM, 1.1V

• Manufacturer: SK Hynix (from sticker: MTC16C2085S1UC48BA1)

 

I recently purchased an additional stick:

• ADATA DDR5 5600 16GB U-DIMM

• Model: AD5U560016G-S, 1.1V

 

When I install the ADATA module (either alone or with the original stick), the system beeps (3 long, 2 short) and doesn’t boot.

 

Can you please advise:

1. Is this ADATA module compatible with the HP 8AC1 motherboard?

2. Does the system require a BIOS update to support it?

3. Are there specific RAM requirements or settings I should be aware of?

 

Thanks in advance for your help,

Dan Rotman

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