I was given a pc with vga connection video output only. It worked till i let my brother "help" me get it going ( only needed operating sys) after he swapped the hard drive and ram(i think its called. The storage amount one) now the vga connection doesnt send any signal to my tv, like it did before he messed with it. Do i have to replace the mother board to correct this issue without killing myself having a tech swap the hardware for the vga port off the motherbard?
Your operating system is stored on your harddrive, so you would either have to put the old harddrive back in the computer or purchase a new operating system. Most desktop computers have plenty of space for additional harddrives, so you don't need to throw either one away.
RAM can commonly cause no signal problems, especially if the RAM is not correctly seated or, worse, is not compatible with the motherboard.
This is assuming the OP has worded the parts correctly (possible he hasn't). If he's correctly identified the changed component as RAM, then RAM can be a culprit as he mentioned that it was one of the components that got changed/swapped.
As the system has undergone changes from his brother (he changed several parts), the problem most likely lies with what was changed (either compatibility issue or improper installation)..
we need to install the RAM in the correct slot according to the manual of the motherboard we cannot just random chose a slot to install, there could be problem such as instability, unable to bootup or even hardware damage. This is what someone told me