HP ER900AA-ABA a1430n
Only one machine has reported its memory so far, so this answer rests on a single example. Check the label or open the panel before you buy.
Yes. 4 slots, up to 2 GB seen working.
It takes DDR2-400 full-size sticks (DIMM).
- Slots
- 4 DIMM slots
- Type
- DDR2-400 240-pin DIMM
- Most seen working
- 2 GB in the one machine reported
- Firmware says
- 4 GB maximum (often wrong, so we show what machines run)
- How sure
- 1 of 1 report show this layout
Worked out from 1 hardware report of this desktop. Sources and method. Updated 10 Nov 2026.
Check the drive you have.
The reports don't show this model's drive type yet. Look at the drive in it: a 2.5-inch box, about 7 by 10 cm, is SATA. A small stick is M.2, and its label says NVMe or SATA and its length (2230, 2242 or 2280).
- Drive type
- Check your current drive
How to tell a drive's type. Sources and method. Updated 10 Nov 2026.
Illustration Check the label on the power supply.
We don't have this model's power supply rating. It is printed on the supply's sticker, inside the case next to its fan. Prebuilt desktops often use a supply shaped for their case, so match the shape and the plugs as well as the watts.
- Rating
- On the supply's label
How to read a power supply label. Sources and method. Updated 10 Nov 2026.
Illustration It takes processors for the Socket 939 socket.
Processors in the reports: Athlon 64 X2 Dual Core 3800+ (1). Prebuilt desktops often only take processors from the generation they shipped with, so stay with the ones listed.
- Socket
- Socket 939
- Seen working
- Athlon 64 X2 Dual Core 3800+
- How sure
- From 1 report
From the processor records in 1 hardware report. Sources and method. Updated 10 Nov 2026.
Illustration It has a full-length (x16) slot for a graphics card.
Cards in the reports: GeForce 9500 GT (1).
- x16 slots
- At least 1, listed by the firmware
- Seen working
- GeForce 9500 GT
From 1 PCI device reports and the firmware's slot table. Sources and method. Updated 10 Nov 2026.
Illustration Questions
Can I upgrade the RAM in the HP ER900AA-ABA a1430n?
Yes. 4 slots, up to 2 GB seen working. It takes DDR2-400 full-size sticks (DIMM).
What type of RAM does the HP ER900AA-ABA a1430n use?
DDR2-400 full-size sticks (DIMM, 240-pin).
How much RAM can the HP ER900AA-ABA a1430n take?
Machines in the reports run up to 2 GB. The firmware reports a maximum of 4 GB, a figure that is often wrong.
What processor can I put in the HP ER900AA-ABA a1430n?
It takes processors for the Socket 939 socket. Processors in the reports: Athlon 64 X2 Dual Core 3800+ (1). Prebuilt desktops often only take processors from the generation they shipped with, so stay with the ones listed.
Can I add a graphics card to the HP ER900AA-ABA a1430n?
It has a full-length (x16) slot for a graphics card. Cards in the reports: GeForce 9500 GT (1).
Is this my desktop?
Check the model name on the front or the label of the case. It should read ER900AA-ABA a1430n.