Computer help forum: New graphic card freezes computer?

I've already done that im saying it wont let me locate it even in that to use it again since the gfx card I put it wont work.
And the cooling thing, it auctually very cool inside there there is no dust inside there and the card has a fan on it. It did says something about the monitor not being officially verified to use the card in installation but if that was true wouldn't it mess up right away? I get 2-10 mins of time before computer freezes

It's probably heat that's causing your problem. Particularly since you crammed a fairly high end video card into an eMachines system, you quite likely don't have sufficient air flow to properly cool the video card.

To test my hypothesis, take the cover off of the system and let it run like that for a time. If the problem abates, you've got a cooling problem. If it persists, then something else is the matter.

If it is a cooling problem, the bad news is that with an eMachines case there's little you can do short of cutting your own fan mounts into the case. The other option is to transplant the entire system into another case with better cooling. You could just perpetually run the system with the cover off, but that just invites problems. One accidental spill of a drink or any number of other things, and you'll be lucky if all that happens is the computer is euthanized. Not to mention it makes it far easier for dust to collect which makes the computer into a fire hazard if you don't clear it out regularly.

I don't think it's the monitor. There is basically only one way a monitor can fail with regards to a video card, and that's to simply not display anything at all.

From what you've said, I still think the problem is that the video card is overheating. It then locks up, sending a constant static image to the monitor. So even though the computer is functioning normally, you aren't receiving any visual feedback of this, which is our primary means of determining if something is wrong.

Just because there is a fan on the video card doesn't mean it's getting sufficient air flow to keep it properly cooled. If possible, try moving any other add-on cards as far away from the video card as possible. Maybe even take one out temporarily if you can live without it for a couple of hours. See if moving the other cards down a slot or two from the video card helps any.

that's an old gpu. is the card retail new? if so, exchange it for another.

to get your built-in graphics working again, remove the graphics card and short your cmos reset pins. if you can't find them (your pc manual didn't give a location), you can remove the cmos battery for about 3 minutes and then reinstall it. that should reset your cmos so your integrated graphics will resume working.

here's your pc's support page. battery removal is on page 159 (pdf page 166) of the manual.
http://www.emachines.com/support/product_support.html?cat=Desktops&subcat=T-Series&model=T3302

I'm pretty sure this is the website http://www2.pny.com/6600-GT-PCIe-128MB-P1779C275.aspx