Turn old to new

[jay crank]

Just a thought what do you rely need to turn a old pc into a up to date pc.

In my case a 2008 pc. 500w

Some of my thoughts are 

Save items 

case,  power,  dvd burner,  hdd ? ssd,  memory ? depends on age and type, gpu would be a question

non save

Mother board,  chip set 

[knightslugger]

OS.

[BloodyWaters]

Everything. 

[ProjectBox153]

A lot of times you can't use the same memory, and the power supply, especially from a pre-built would be questionable. And the cases from pre-built systems from that time were often non standard, especially with front-panel I/O connections. 

[jay crank]

Thanks.

So a lot of time just to think about saving much of anything.

 

[eira]

Honestly it depends. If you could post your PC specs (such as i5-4690K, GTX 970, 8GB RAM etc.) then that'd help. 

[Chaoix]

I'd re-purpose the old machine some how if it still works and just purchase new. You could, use it as a secondary PC for kids or others in your home, give it to your grandma, or setup a NAS/Media server box.
 

If re-purposing it is out of the question due to hardware failure or something, you could easily salvage these parts if its a custom built pc:

• case - ATX in 2008 is still ATX today
• dvd drive - if it works why buy another
• hdd - use it as a secondary drive for file backups in your new rig
• misc cables and wires - SATA cables or molex power adapters if needed in your new rig
• any left over parts you could try selling on Craigslist or something. Just don't be that guy asking too much for used stuff

If you do anything, definitely do not reuse the old power supply in a new machine with new hardware. That is a recipe for killing your nice new parts prematurely.