Sony VGN-FZ31Z
Laptop, from 2007 22 hardware reports
Memory
4 GB
In every report, slot unconfirmed
SSD and charger
Coming next
Checked from separate sources
Check before you buy
Check before you buy.
Every machine in the reports has exactly 4 GB. Some laptops report soldered memory as a slot, so we can't confirm a free slot on this one. Open the bottom panel or check the maker's manual first.
- Slots listed
- 2 SO-DIMM slots
- Type
- DDR2 200-pin SO-DIMM
- Most seen working
- 4 GB in two or more machines
- How sure
- 22 of 22 reports show this layout
Worked out from 22 hardware reports of this laptop. Sources and method. Updated 9 Nov 2026.
2 laptop-size slots listed by the firmware
Illustration Questions
Can I upgrade the RAM in the Sony VGN-FZ31Z?
Check before you buy. Every machine in the reports has exactly 4 GB. Some laptops report soldered memory as a slot, so we can't confirm a free slot on this one. Open the bottom panel or check the maker's manual first.
What type of RAM does the Sony VGN-FZ31Z use?
DDR2 laptop-size sticks (SO-DIMM, 200-pin).
How much RAM can the Sony VGN-FZ31Z take?
Machines in the reports run up to 4 GB.
Is this my laptop?
Check the model name on the label underneath. It should read VGN-FZ31Z.