Well i apologise for wanting to be sure that something would work, there are so many contrasting opinions around as to whether graphics cards will work, and as for the manufacturers site, they only state a wattage requirement on the PSU itself, which mine would appear to satisfy, but you guys are telling me is probably worth upgrading (Thanks for the useful responses on that btw).
So my PSU is definately one of the crappy, budget ones (manufacturer is someone called WIN-Power lol), which i will probably go ahead and upgrade based on this. Ill ask for recommendations as to a nice, cheap but satisfactory PSU, and i accept that certain forum members will probably take this as an invitation to flame a newbie, but id still like good opinions.
Sorry, this question is asked 20 times a day out of stupidity. These people want us to do the work for them when they could do it themselves in half the time it takes to make a post about it. Its called stupidity and laziness!
You're way off base there. The lack of standardization when it comes to PSU labeling can make things very confusing; folks shouldn't have to do hours of research to figure out whether or not their PSU can handle a GPU upgrade.
He already knows how many amps his psu has, yet he's too lazy (or dumb) to go to ATI's website and see what the requirements of the video card are.
Do you know what brand it is? That way we could look up the full specs. That could be enough, but it depends on how much the rest of your system draws. The 4850 draws only 110W, so it is not particularly power hungry. And also, what is the current card? If this is similar in power consumption to that, you'd be fine.
Can you please help us all out by posting links to these manufacturers sites you have found that state a minimum AMPS requirement.
A complete novice wouldn't even know the AMPS were important due to the way the manufacturers and retail sites keep listing the requirements in Watts.
My advice would be to get a better PSU with more AMPS if you can afford it. just trying the card could leav eyou with a shorted card or whole system.
Having said that the subject of the 4850 running or not has been asked before and on one of those discussions the attitude that if the power supply has a dedicated PCIE cable and not something cobbled up from two molex connectors, then similar to a card with no power leads needed it should run as the required power should be there.
In other words a PCIE slot has a required wattage that it (should supply) 75 Watts. The PCIE cable is meant to supply 75Watts also. Thats 150 Watts total for a card that runs about 110 at full load.
Also when looking at power supplies people that are not in the know of tiers and what nots will think price is their guide...if there is a 900w PSU for 50 bux and a 700w PSU for 140 bux...which one works better? Am I getting a deal on the 900w PSU or getting ripped off on the 700w PSU? Am I buying junk for $50 or buying WAY over priced junk at $140? Then toss in rails and 6 or 8 pin connectors...modular...EPS...SFX...TFX...BTX. Also you can't always judge by the label since there are tiers within product lines under the same label...or relabeled in some cases I am sure. Just because a label says the PSU will give so many amps does not means you will get it how you need it. I am pretty sure there are some of these labels stating those levels just before failure type use....like engine specs on trucks. 200hp at 8000rpm...8000rpm?!? Or better yet PMPO ratings on speakers...yeah you can get 200w of sound from those $9.99 speakers...
Is there a updated sticky somewhere if this has been asked sooooooo many times? Hell I know I would read it to guide my buying dollars.
One of the "stickies" on this is the PSU listing at http://www.tomswiki.com/page/Tiered+PSU+Listings?t=anon. The problem with that list is that it is become more dated all the time.
From the OP's posts, if I had to guess, his "WIN-power" PSU is a tier-5 sparkler that will detonate if loaded to 60%-75% of its claimed capacity for more than 10 minutes. While he doesn't need a monster PSU for a 4850, a QUALITY unit capable of actually putting out 450W-550W should be fine.
As important as it is, it seems entirely reasonable that a PSU might be 10% of the rig's cost. Sometimes there are deals, but if I were building a new rig today, I'd expect to spend at least $90 on the PSU; I think the last one I got was $110.
Ok, so i'm almost understanding, just not quite yet... The XClio PSU homerdog links to has its 12v rails rated at 18A and 16A, so would my current PSU be fine to run the card (with its 12v at 22A) if it werent a dodgy make? I think this is what mactronix is saying as well, but i just want to be sure.
Yes i agree with the Corsair. I looked at that unit myself the other month but ended up getting a good deal on an Antec case with bundled PSU.
As you are going to get a Quad in the near future I do think that it is the best idea to upgrade the power supply.