All the HP A6700f I see are a AMD Phenom X4, not a Intel G860. It claims it has a X16 slot. Pop the side open and make sure there is room for the card. Not for sure about the power supply. From what I can tell it has a OEM 300W, which probably means it has around 225W on the 12V rail. See if you can get info off the power supply.
Has a AMD socket, a Intel processor will not fit. Would have to replace the motherboard too.
Well your looking at a Motherboard/Processor/it just has DDR2 memory, so a memory upgrade too. Then possible a power supply upgrade too, its just a old OEM 300W power supply.
If I were you, I would just buy all new parts and build the system yourself. You have an out of date HP system and its easier to just build a new system then trying to put new hardware into the HP case. The case connections usually don't match up to the motherboard very well.
Give me an idea on what you will be using the computer for and I can give you a build.
Get windows 8 over W7 at least. For $900 you could do a lot better then johnb35's build.
i5 3570K
Gigabyte UD3H Z77
MSI HD 7870
G.Skill Ripjaws 2 x 4 GB 1600 MHz
Windows 8 64 bit oem
Corsair CX 500
Seagate Barracuda 1 TB (get this even with johnb's build if you get it)
NZXT Source 210
This build is a lot better then johnb35's build, but for $200 more.
If $900 budget then we can definately get better parts. but all depends on what you want to do.
For $900 you could do a lot better then johnb35's build.
get this even with johnb's build if you get it
This build is a lot better then johnb35's build, but for $200 more.