Kalah wrote:Now I think I need a new CPU, so the whole motherboard needs upgrading, doesn't it ... Upgrading my old PC is fun, though.
![smile :)](/forums/images/smilies/smile9.gif)
Not necessarily. Motherboards support different CPU types, so you could find out what are the latest processors for your motherboard socket, then decide whether it's more viable to upgrade only the processor or both. Somewhat recent motherboards have pretty decent compatibility with different processors (AMD's Socket AM3 is compatible with everything with Socket AM2 as well, for instance, and some of Intel's Sandy Bridge sockets are forward-compatible with Ivy Bridge).
In my case, I have a Socket AM3 board with a Phenom II X4 925, and the processor is really slow for the feats of computing I'm trying to achieve (record and process 1080p video, that is). I could extend it up to the highest models of Phenom II X6 (hex-core, something around 3.8 GHz each). Though in my case, it's way too dangerous to attempt that. Upgrading a CPU only is somewhat dangerous all by itself due to the thermal paste, since it sticks very firmly to both the CPU and the CPU socket. Attempting to remove it might result in breaking either of the two (though the CPU is more fragile). And, if you haven't replaced the thermal paste in a while, then chances are that it is quite literally cooked into both, making the separation even more problematic. But in my case, it's even worse in that the CPU came with a bent pin when I ordered it originally. I didn't want to go through all the RMA, so I just straightened it myself. It worked, but the pin is a lot more fragile now, so attempting to separate the CPU for me would nearly guarantee that I break the CPU.
Then there's also the price. For instance, the high end Phenoms these days are way too expensive compared to what Intel has to offer, so it almost pays to buy a new motherboard by itself, as you save on the CPU price. In my case, it's also a bit more complicated, as my PC has a lot of fans (4 case fans, 1 CPU fan; also 1 GPU fan and 1 PSU fan), so I have to find a motherboard that allows to plug in 4 fans, when most motherboards offer only 1 or 2. And I also need a PCI slot for my sound card, and those are not available on all MBs these days.
Also keep in mind that motherboards these days nearly exclusively use DDR3 memory, instead of the earlier DDR2, so unless you had DDR3 memory already, you'll have to replace it as well. Though you'll be left with what is essentially a backup PC that you could fairly easily repurpose into a thin client or a game server
![wink ;)](/forums/images/smilies/wink.gif)