Lenovo H520S
Type 2561 Desktop, from 2012 2 hardware reports
Memory
Up to 8 GB
4 full-size slots
Drives and power
Coming next
Checked from separate sources
Only 2 machines reported so far, so this answer rests on few examples. Check the label or open the panel before you buy.
Upgradable
Yes. 4 slots, up to 8 GB seen working.
It takes DDR3-1333 full-size sticks (DIMM).
- Slots
- 4 DIMM slots
- Type
- DDR3-1333 240-pin DIMM
- Most seen working
- 8 GB in two or more machines
- Firmware says
- 32 GB maximum (often wrong, so we show what machines run)
- How sure
- 2 of 2 reports show this layout
See 8 GB DDR3-1333 DIMM on AmazonOpens an Amazon search for this exact spec.
Worked out from 2 hardware reports of this desktop. Sources and method. Updated 9 Nov 2026.
4 full-size slots
Illustration Questions
Can I upgrade the RAM in the Lenovo H520S?
Yes. 4 slots, up to 8 GB seen working. It takes DDR3-1333 full-size sticks (DIMM).
What type of RAM does the Lenovo H520S use?
DDR3-1333 full-size sticks (DIMM, 240-pin).
How much RAM can the Lenovo H520S take?
Machines in the reports run up to 8 GB. The firmware reports a maximum of 32 GB, a figure that is often wrong.
Is this my desktop?
Check the label on the bottom. It should say H520S, and the type code starts with 2561.