Hello everyone, normally I would do at least some research first, but the situation is rather dire. My desktop computer, bought in 2005 is now randomly generating false thermal events – which means I must come up with possible replacement build specs quickly. The bad thing is, I research the hardware field only when I have made up my mind to buy a new computer and thus am out-of-date. The old computer was relatively powerful (as of 2005), but not aimed at gaming -> while boasting a P4 (Prescott) 3.2Ghz/800Mhz FSB, it had a rather mediocre video card (Radeon X600, which later was replaced by Radeon X1300 (warranty service)). Since this is a replacement build, it does not need a HDD, an optical drive nor a monitor. Most probably it could do with current GPU as well. I am thinking about something quad-core from Intel i5 series and would like to go for best cost/quality ratio. I will check out what's in local stores when picking RAM, but you can post recommendations. I have no clue about motherboards though. Pretty much all of them that have the relevant CPU socket have everything I need (integrated sound + NIC). ... and I will go with a random case+PSU with enough wattage. This isn't a powerhouse build, you know. TL;DR Motherboard + CPU aimed at both home tasks and CPU-intensive tasks, for example chess analysis. Budget: up to $700.