Upgrading LGA 775 Computer

Can you use old psu + case + HDD?

If you can then do it like this.
PCPartPicker part list / Price breakdown by merchant / Benchmarks

CPU: AMD FX-8120 3.1GHz 8-Core Processor ($139.99 @ SuperBiiz)
Motherboard: Asus M5A99X EVO R2.0 ATX AM3+ Motherboard ($114.97 @ OutletPC)
Memory: G.Skill Sniper 8GB (2 x 4GB) DDR3-1600 Memory ($69.99 @ Newegg)
Video Card: Gigabyte Radeon R9 270X 4GB Video Card ($257.27 @ TigerDirect)
Optical Drive: Samsung SH-224DB/BEBE DVD/CD Writer ($16.98 @ OutletPC)
Total: $599.20
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-02-24 09:35 EST-0500)

New case + psu is + 100.
PCPartPicker part list / Price breakdown by merchant / Benchmarks

Case: Corsair 200R ATX Mid Tower Case ($49.99 @ Amazon)
Power Supply: EVGA SuperNOVA NEX750B BRONZE 750W 80+ Bronze Certified Semi-Modular ATX Power Supply ($49.99 @ NCIX US)
Total: $99.98
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-02-24 09:43 EST-0500)
 

Xiembeest

Honorable
Jun 24, 2013
406
0
10,960


Looks good but if you take the GTX 760 GPU you will get more perfomance without paying a lot more.
 

Prithu

Honorable
Feb 11, 2014
23
0
10,510
I have a crappy 160gb HDD and HD 5450 and also a samsung dvd/cd writer. I can use the old dvd/cd writer but I want to sell my processor which is a pentium e2120, the HDD and GPU. Can you give an idea for how much it could sell.