Top compatible cpu

The make and model of the motherboard for starters.

f690gvm

Is it this a name brand computer with this mobo?
http://www.tomshardware.com/forum/276928-28-f690gvm

http://www.google.com/search?rlz=1C1GGIE_enUS406US406&s...

Download and install CPU-Z. Get the current CPU and motherboard specs from there and let us know.

it says Brisbane socket am2(940) and its 65 nm

my current processor is a amd athlon x2 duel core processor 4800 +  

it only supports old slow cpu, instead save up and replace motherboard memory and cpu at same time for full upgrade (and move to ddr3 memory)

well would you have a recommendation for a mobo my machine is a acer 3100 so i would be obliged if you would help me !!!  

Here is a little trick that I learned (after replacing a couple of motherboards).
Essentially if you can find a motherboard with the same chip set (or very very similar),the exact same Network chip (will have different MAC address),same on board IGP or no on board IGP and a discrete graphics card it can be used as an alternative replacement motherboard (you might not even have to reactivate Windows on your hard drive). Essentially keep all the components as original as when Windows was first activated same RAM,CPU etc.

What you can do is try to find an AM2+ replacement board,use your current parts in it (but again keep all the components as original possible when Windows was first activated same RAM,CPU etc.).Also consider adding in a dial up modem if the original machine doesn't have one (in case Windows wants to reactivate using the antiquated dial up modem)

See here.

http://www.tomshardware.com/forum/54953-2-alternative-r...

Afterwards you can upgrade the CPU to a more powerful type.

OK lol i might just by a separate comp i have 200 dollars and rising i don't need a graphics card cause i got a gts 250 1 gig so can you guys help me find a computer that is around 400 dollars like with a really nice quad core (not like a 15 or anything but adequate). like 4 gigs of ram and a 400 watt psu ? 350 gig hard drive ill keep my monitor

Well first you could look at some inexpensive great performance CPU's vs Cost under $100 like either the AM3 Phenom II X3 740 BE CPU the AM3 Athlon II X3 450 CPU or perhaps a AM2+ Phenom II X4 940BE CPU OEM (doesn't include heatsink and fan though).Don't feel that using a AM2+ is bad as there are some great under $100 motherboards that can work with it.One that I like is a Foxconn Cinema Deluxe which comes with a wireless router card (yes a router card that works even if the PC is off) and a IR enabled remote control.I have one PC with this motherboard and it's awesome.It's really designed for HTPC's but works great for desktops.Very inexpensive and feature rich.
http://www.tomshardware.com/reviews/amd-785g-motherboar...
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Also there is a AM3 type model as well (only works with AM3 type CPU's)
but a newer model
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

So yes you can get a nice powerful CPU + feature rich Motherboard under $200
These motherboards do have integrated graphics (a good IGP that can even do light gaming) but you can use a discrete graphics card instead.