reply to post by The Chez
Wow, I'm glad I do my own PC repair lol.
Cannot boot from disk usually means the OS files or boot sector got corrupted. If it's just the boot sector then you can fix this with a simple
command if you have a Windows disk or just reinstall the OS. However, most retail outlets don't give you the stupid OS disk anymore or even a restore
disk. Because they're evil and it's a conspiracy.
Your case sounds like it may be another rare problem that I see sometimes and most people would never even think about this.
The reason your boot sect got corrupted is because the HD went bad. Also, telling is that your graphics card AND your HD went bad AND they replaced
the graphics card. This gives me a lot of info.
You might have a power problem. Most retail computers come with very cheap low power, power supplies. Typically these power supplies are already
border line defective the day you get the computer.
However, most retail computers also have cheap onboard graphics (no actual card, built into the mother board) and so it's fine because these cheap
onboard graphics don't use any power.
When you said they replaced the graphics card and not the motherboard that would lead me to believe you have an actual graphics CARD. Not built in.
This could be your problem. The actual cards that you can remove and swap use CRAP LOADS of power.
As an example. This computer I'm on came with about a 250 power supply. I put the graphics card in myself. However, the graphics card requires about
500 to 550 watts of power to feed it. This is what most people don't know. When you put a graphics card in, you gotta upgrade your power supply. So I
had to also put in a 600 watt PSU along with the graphics card I put in. Just to be sure.
Some retail outlets though will just sell a computer with an upgraded card in it and advertise it as having an awesome video card, but it still comes
with the same old cheap PSU that isn't putting out enough power.
What this will do is strain the PSU and basically surge everything in the computer over and over. The HD, and graphics card are operating underpowered
and eventually they'll just stop working. Or sometimes, just sometimes, the PSU will go up in a fiery ball of sparks. Which is awesome for about 10
minutes until you realize what you've done.
If you have a defective PSU that isn't putting out enough power what you would expect to see is multiple HD, graphics card, MOBO, and RAM failures
over and over and over. No matter how many times you replace them they seem to go bad gain. But it's really the PSU
Then again, I can't be sure without looking at it. It may very well have just been a defective graphics card and a defective HD. After all, the
bigger hard drives go bad a lot more.
But when both go bad at the same time it's usually a sign.