what can i upgrade cpu to

[mrgee]

ok a newbie here at upgrading and i want to upgrade my pc cpu to something high at the moment i have a
AMD Athlon(tm) 64 Processor 3400+
.................................................. ....
my motherboard is a phoenix
.................................................. .
my pc is a Compaq Presario SR1440UK Desktop PC
.................................................. .......
my graphic card is a
nvidia geforce 6200 turbocache
..............................................
the information above is taken from some software called dr hardware

what cpu what graphics card can i add to the pc to make it so much better ?

also would like to add a very good tv card so i can hook pc up to my lcd tv a tv card with freeview would be something im looking for

any help greatly apreciated thanks

[mobo57]

Questions:
Is the graphic card a AGP?
Next, what is the speed of your memory?
USUALLY, and I stress that, OEM motherboards are restricted as to what you can do with them regarding upgrading. Things like FSB and Multi's are usually locked. That said, most OEM mobos can handle upgraded CPU's to some extent.
In your case, unless your mobo can handle a dual core CPU I would not bother upgrading the CPU. Upgrade your vid card to the fastest you can get, this will give you the biggest bang for your buck. The one you have is about the bottom of the barrell in either AGP or PCIe. Also make sure you have at least 1 gig of memory, 3200 speed or above.
As for TV cards, you can look at either the ATI AIW cards or something like the Hauppague cards. Just make sure you get hardware decoding.
I have a multi-media system I built with a AMD 3200 and a 9600 AIW connected to my 50" Samsung HD DLP. Playing games and videos is great. TV is just ok. For high def broadcasts there are some over the air PCI cards out there, but as we only have 4 channels in our area that are high def, I'll wait until there are cable cards available.

[Midknyte]

No sense in upgrading the cpu. the 3400+ is a s754. the top is only a 3700+ which won't make that much difference.

[mrgee]

cheers for reply mobo
here is a screen shot of dr hardware about my graphic card

other information taken from belarc advisor
main circuit boad
Board: AHI2
Bus Clock: 199 megahertz
BIOS: Phoenix Technologies, LTD 3.12 04/11/2005
.................................................. ...................................
memory modules
1024 Megabytes Installed Memory

Slot 'A0' has 512 MB
Slot 'A1' has 512 MB
Slot 'A2' is Empty
Slot 'A3' is Empty
.....................................
prossesor
1766 megahertz AMD Pentium 4
128 kilobyte primary memory cache
512 kilobyte secondary memory cache
.................................................. ..............
hope i have given enough infor for you to help me corectly
thanks again