Help Me Upgrade My Old PC

[ccky]

Hello everyone, I'm wanting to upgrade my old media pc.

SYSTEM: http://www.newegg.com/Product/Product.aspx?Item=N82E16883107364

THINGS I WOULD LIKE TO UPGRADE:

• 
  Ram
  GPU
  PSU

I'm wanting to stay in the $150-$175 Price range.

This computer would be used for light gaming. Like Garry's Mod, TF2, etc.

 

[gamer2321]

Has your machine never been upgraded before. Do you have a current graphics card. How much is your current PSU wattage?
I will tell you upgrades once you tell me the required info.

 

[mastrom101]

PCPartPicker part list / Price breakdown by merchant / Benchmarks

Memory: Corsair 2GB (2 x 1GB) DDR2-533 Memory ($42.99 @ Newegg)
Video Card: XFX Radeon HD 7850 1GB Video Card ($119.99 @ NCIX US)
Power Supply: Corsair Builder 430W 80+ Bronze Certified ATX Power Supply ($19.99 @ Microcenter)
Total: $182.97
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-12-15 21:39 EST-0500)

 

[ccky]

All info is listed on the site. Never had been upgraded.

 

[filippi]

PCPartPicker part list / Price breakdown by merchant / Benchmarks

Memory: Kingston ValueRAM 1GB (1 x 1GB) DDR2-533 Memory ($17.93 @ Amazon)
Memory: Kingston ValueRAM 1GB (1 x 1GB) DDR2-533 Memory ($17.93 @ Amazon)
Video Card: PowerColor Radeon HD 7750 1GB Video Card ($59.99 @ Newegg)
Power Supply: Antec Neo Eco 620W 80+ Certified ATX Power Supply ($39.99 @ Newegg)
Total: $135.84
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-12-15 21:54 EST-0500)

 

[eodeo]

With core2 @ 2ghz 7850 is a ridiculous overkill. OP, you need a faster CPU first. You can get a core2 quad for very little now- used of course. Any quad you get will be miles ahead of what you have right now for everyday tasks.

ANY modern GPU will be godsend. Even a 50$ one will feel super fast for most games and full hd YT video viewing.

You probably don't need more than 4gb of ram. So additional 2 will be fine.

You will need a new PSU, no doubt about it.

 

[ccky]

This is what I came up with.

PCPartPicker part list / Price breakdown by merchant / Benchmarks

Memory: Kingston ValueRAM 2GB (1 x 2GB) DDR2-533 Memory ($34.57 @ Amazon)
Video Card: Asus GeForce GT 630 2GB Video Card ($64.66 @ Newegg)
Power Supply: Corsair Builder 430W 80+ Bronze Certified ATX Power Supply ($19.99 @ Microcenter)
Total: $119.22
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-12-16 10:54 EST-0500)

I picked this GPU because it's PCI express 2.0. I read that 2.1 and above May have issues with my mobo. Suggestions?