Building The Rig - Part 3

Part 1 - Pre-shopping Research
Part 2 - Buying & Assembling
Part 3 - Troubles
Part 4 - Look! It Runs Crysis!!1

My personal adage, fortunately or unfortunately, never fails. When it comes to computers, nothing ever goes smoothly. After the assembling, it was time get those some juice into our rig. Lots of excitement on my bro's part, I tried to warn him.

To make things easier, I've arranged our woes in chronological order.

Booting up the tower
Since we only had one monitor, we had to switch VGA cables. (A VGA cable connects your monitor to your CPU.) Ready to plug into the new rig, only to find out that the new PSU only had one slot, already connected to main power line.
Solution: Bought a VGA-to-3pinplug, the same one that connects the PSU to the electrical socket.

No video input when the old comp was working 10 mins ago?!?
Before we went out to buy the VGA cable, I wanted to use the old computer. CPU boots ... "No video input" No way a perfectly fine computer could die in a space of 10 minutes. Panic & frustration on my part after an exhausting night assembling, sms-ed big bro. Opened the casing to reseat all the cards, while taking the opportunity to clean the CPU fan(which has since stopped its loud humming sound).
Solution: Bro had connected the VGA to the onboard graphics(which I assumed is spoilt or smtg) instead of the graphics card.

Formatting and OS installation went fine. Drivers and apps followed suite.

Every single game crashes
By this time, my bro and I were stressed out to the max. Plonking down RM3000, we envisioned the perfect gaming rig, capable of running the latest game engines smoothly and on high graphics settings. Horror of horrors, not one game could run longer than 30 mins. Its like buying a Lamboghini only to realise you can't drive it for whatever reason..
Awfully dreadful feeling, took the mood out of everything.

We spent about a few days scouring the web for solutions, updated drivers, tweaked with clockspeed and fanspeed, all to no avail. We reached our final straw and implored our dad to take us back to Low Yat to let the professionals handle it.

Culprit: Faulty RAM, unstable OS and the most crucial, I hadn't used the screws to separate the motherboard from the casing, resulting in the current getting grounded. In other words, the computer crashed due to insufficient power, especially when runnning games that stressed the system.
Switched to Kingston RAM as recommeneded, though Corsair's RAM looked cooler, but anything goes as long as the rig works.