Trying to upgrade a custom-built PC?

oneandfour

Trying to upgrade an old (now virtually unusable) custom built bought off DoneDeal.

We're not sure of all the specs, but here's what I can gather:
Processor: AMD Athlon 64 X2 Dual-Core
Graphics Card: AMD ATI Radeon HD 4800 Series (not sure which specifically)
Power Supply: Alpine 500W
4GB RAM

The main problem is the mass overheating and loud noise issue. It's why we had to get rid of it in the first place. Turns a room into a sauna.
I understand I'll need fans, so any recommendations on which would be great. I suppose I'll need more RAM as well.
Have a rough budget of about 250e.

UPDATE:
These are the new parts I'm hoping to buy-
CPU: AMD FX6300 (originally AMD Athlon 64 X2 Dual-Core)
MoBo: MIS 97OA-G43
Cooler: Cooler Master Hyper 212 EVO

Leaving me with:
Graphics Card: AMD ATI Radeon HD 4800 Series
Power Supply: Alpine 500W
4GB RAM

thoughts?

Jaafa

Apart from maybe the ram (is it ddr3?) the whole thing is a scrap job to be honest. Those components are all 4 or 5 years old, and they weren't even high end back then. What's make is the case? It may be partially to blame for the overheating/noise. And what do you need the PC for?

Something like this would get you started:

CPU: FX-6300: http://www.amazon.co.uk/gp/product/B009O7YORK/
MOBO: MSI 970A-G43: http://www.amazon.co.uk/gp/product/B009O7YORK/

Total price: 178 euro.

If you need a GPU then add this 7850 for another 140 euro: http://www.amazon.co.uk/Sapphire-11200-16-20G-HD7850-GDDR5-Graphics/dp/B008RJZ5Z6/ref=sr_1_4?s=computers&ie=UTF8&qid=1384716801&sr=1-4&keywords=7850

But like I was saying it's likely the case, ram, and psu will need replacing too.

oneandfour

Ah, thanks. I'm starting to get a bit of progress now. A basic gaming PC is what it was, and hopefully will be!
As for the case... It appears to have no clue as to what make it is on it.

Will upgrading just the CPU & motherboard do it good (for the moment at least)? Will I need a fan to go along with them?