I recently bought a Slimline HP Desktop to use has a nice little media center. I ended up buying a lower end model so that I could change out and upgrade the pieces and save money, and not have to buy the over priced higher end units. Here is the research I found on this system.

Actual Motherboard Specs:
Asus M2N61-AR, HP/Compaq name: Acacia-GL6E
Chipset NVIDIA GeForce 6150SE nForce 430

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01321559&cc=no&lc=en&dlc=no&product=3644719#

CPU upgrade:
The Slimline HP can take any Socket AM2 CPU

Socket: AM2
Supports the following processors:
Athlon 64 X2 with Dual Core technology
Athlon 64
Sempron

RAM Upgrade:
It only has two ram slots for max ram upgrades of 4 gb
Ram Type used is DDR2 240-Pinn

Video:
One PCI Express x16 graphics, card needs to be low profile to fit into case

USB:
Ten ports total
four connectors on back panel
four additional headers on motherboard support six additional ports/devices

Some USB ports may not be available externally for customer use. For more information, see model specifications.

Rear Ports:

1 - PS/2 mouse port (green). This port is for a PS/2 mouse.
2 - Coaxial SPDIF Out port (orange). This port connects an external audio device through a coaxial SPDIF cable.
3 - Video Graphics Adapter port. This 15-pin port is for a VGA monitor or other VGA-compatible devices.
4 - IEEE 1394a port. This 6-pin IEEE 1394a port provides high-speed connectivity for audio/video devices, storage peripherals, PCs, or portable devices.
5 - LAN (RJ-45) port. This port allows connection to a Local Area Network (LAN) through a network hub.
6 - Line In port (light blue). This port connects a tape, CD, DVD player or other audio sources.
7 - Line Out port (lime). This port connects a headphone or a speaker. In 4-channel or 6-channel mode, the function of this port becomes Front Speaker Out.
8 - Microphone port (pink). This port connects a microphone.
9 - USB 2.0 ports 1, 2, 3, and 4. These four 4-pin Universal Serial Bus (USB) ports are available for connecting USB 2.0 devices.
10 - PS/2 keyboard port (purple). This port is for a PS/2 keyboard.

Here is what i decided to purchase:

1x PNY GeForce 8600 GT VCG86512D2GXWB 512mb Video Card
(Didnt purchase one with an external card)
Time of Purchase approx $70

2x G.SKILL 2GB 240-Pin DDR2 SDRAM DDR2 667 (PC2 5300) Desktop Memory
(The ram that came in my Slimline were 2x 1gb, so both had to be trashed)
Time of Purchase approx $70

Looking into CPU replacement to:

Only 65 Watt cpu’s will work - Processor - AMD Athlon 64 X2 6400+ / 3.2 GHz, (but I already purchased PC5300 ram…)

If I replace the CPU, then bascially this computer will be maxed out of upgrade options. The slimline I purchased came with the TV tuner, which was a major selling point for me. Hope this helped. Have fun tunning your PC!

UPDATE
HP Slimline Upgrade

Related Posts

• How to Reset HP Pavilion Recovery CD One Limit Restriction
• How to upgrade HP Pavilion Slimline RAM and replace Harddrive