ASRock A780LM-S
Motherboard, from 2009 5 hardware reports
Memory
Up to 4 GB
2 full-size slots
SSD slots
Coming next
Checked from separate sources
Upgradable
Yes. 2 slots, up to 4 GB seen working.
It takes DDR2-400 full-size sticks (DIMM).
- Slots
- 2 DIMM slots
- Type
- DDR2-400 240-pin DIMM
- Most seen working
- 4 GB in two or more machines
- Firmware says
- 8 GB maximum (often wrong, so we show what machines run)
- How sure
- 5 of 5 reports show this layout
See 8 GB DDR2-400 DIMM on AmazonOpens an Amazon search for this exact spec.
Worked out from 5 hardware reports of this motherboard. Sources and method. Updated 9 Nov 2026.
2 full-size slots
Illustration Questions
Can I upgrade the RAM in the ASRock A780LM-S?
Yes. 2 slots, up to 4 GB seen working. It takes DDR2-400 full-size sticks (DIMM).
What type of RAM does the ASRock A780LM-S use?
DDR2-400 full-size sticks (DIMM, 240-pin).
How much RAM can the ASRock A780LM-S take?
Machines in the reports run up to 4 GB. The firmware reports a maximum of 8 GB, a figure that is often wrong.
Is this my motherboard?
The model name is printed on the board, usually between the memory slots or near the CPU socket. In Windows, open System Information and look at "BaseBoard Product"; it should read A780LM-S.