300w vid card

absolutly...it can play games at 1080p on medium -high settings, dependning on the game.

you can take a look here and see the differences between the gt gt 430 and 6670...i know its not the same as the gt 520, but it should be about the same performance. the gt 520 is not a gaming card at all. the 6670 is a low end gaming card, so that alone should tell you that it will perform alot better than the gt 520 you currently are running.

http://www.hwcompare.com/10846/geforce-gt-430-vs-radeon-hd-6670-oem-1gb/
 
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Aastii said:
I would take everything that Bigfella says with a huge pinch of salt before you start quoting that crap ;)

It is also impossible for the 300W unit to provide 26A on the 12V rail, because that would be 312W.



An 8400GS sips power and is not a gaming card.

Just take the facts mate as they come - you need a better power supply. We could have cut the thread short as soon as the first person said this, there are no ifs, ands or buts, that is it, simple as. If you decide to go and get a graphics card anyway, it is the same as you buying a car that is up on bricks. It is all well and good having the car, but you have no wheels, the same here, you have the whole system, except for the most vital part - the power
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I never said a 300W PSU can provide 26A. What exactly have I said that is crap? Im happy to have a discussion on any topic to do with PSUs with ya mate.

To clarify, this is the basic assumptions i make for the 26A guidance:

  1. 26A on an ATX cheaper PSU means that in all likelihood you have at least 13A - 16A on the 12V rail available for the 12V system minus the CPU (an older but still common design specification);
  2. Most quality brand PSUs that anyone who knows there stuff would recommend will have at least 26A on the 12V rail making it an easy purchase
  3. Even low end PSUs such as the Corsair 430W have 32A on the 12V rail, meaning for $40 you can easily make sure you have the sufficient amperage where it counts
  4. Sure, there are systems with discrete cards that will run on less than 26A, but they're few and far between.
  5. To find a PSU with less than 26A on the 12V rail means that you're going to be buying a cheap an nasty PSU. In this instance, even if it has 20A on the available 12V rail, it will be massively derated (i.e. insufficient

To sum up, wattage recommendations are meaningless because it doesn't factor in power distribution. Amperage on the 12V rail, where the computer needs it, is more meaningful, and with the hundreds of PSUs out there, a 26A recommendation will mean that universally, someone with low end machine, a discrete GPU can put almost any PSU (with 26A on the 12V rail) and be safe.

Of course a case by case basis will find exceptions to this (my) rule, however you'd have to look pretty hard to find a lower 12V rail amperage with any quality, so its really a mute point - therefore a safe recommendation.
 
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My friend has an oem 400w psu that I can use, do you think that if I replace my crappy 300w one with his crappy 400w one I will be able to run an hd 6670 with my system?
 
Which one exactly mate?

To the other guys that say, yeah ive been using a crappy 300W psu for years, sure, im not saying it wont work, but should a Computer forum being recommending it? no.
 
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:good: to the above post...i should have thrown that in there with my post...if it were for my personal system, i would go with a branded quality psu...for computers i build and sell for my friend and sis for $300 and under, then its not so much an issue, because they are happy and there computers are still running strong. these are the only 2 systems i have ran dedicated cards in, so its not a habit to practice.
 
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Well yeah, I would go for a qauality psu, but the only thing holding me back is the fact that this pc is worth less than a $100 so thinking about going for a $50 psu just hurts... and I also use it for like 3 weeks per year when I'm not at home where this pc is. (It's not at my house)
So yeah, now you know why I'm so against buying a better psu, it's simply not worth it and I wanna get a better video card cause I'd like to do a little gaming in these 3 weeks...
 
SpringWater said:
Well yeah, I would go for a qauality psu, but the only thing holding me back is the fact that this pc is worth less than a $100 so thinking about going for a $50 psu just hurts... and I also use it for like 3 weeks per year when I'm not at home where this pc is. (It's not at my house)
So yeah, now you know why I'm so against buying a better psu, it's simply not worth it and I wanna get a better video card cause I'd like to do a little gaming in these 3 weeks...
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Then why ask or start this post? If you're not entering into the debate about whether it will be ok, or considering replacing it if it isn't i hardly see the point of this thread.

But yeah, go for it. :)
 
I had a friend put a 6670 in with like a 250 watt PSU in a prebuilt and he's been running fine for over a year. It's not exactly advisable but it would still probably work...
 
Okay, I'll switch to the 400w one and get someting like a 6670, if it'll work I will be very happy, if not... the gt 520 is an okay card... anyways, thanks for the ideas and advices. Let's end this thread! :D
 
Denther said:
I had a friend put a 6670 in with like a 250 watt PSU in a prebuilt and he's been running fine for over a year. It's not exactly advisable but it would still probably work...
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As i said already, it may work, but when it doesn't you're likely to lose the lot. Its a really dumb thing to do when you can get a PSU with 32A on the 12V rail for $30.
 
spring water, id say, just go ahead and get the 6670 and put it on either psu, preferably the one that has the most amperage on the 12v rail(s)...i think it should be alright, for a while anyways.....i mean...the ones i used in the 2 builds had 2 x 12v rails, both were 16a on one, and 12a on the other, na d my friend games at least 6 hours a day, everyday...i think you should be alright, especialy since you are running a pc for $100, i totaly get not wanting to get anything else...you should be fine, although this advice has been not recomended by this forum, but rather through my own, and others, experiences fist hand with si,ilar hardware...the choice is yours. enough people have chimed in and given their opinions...
 
Glad this is resolved :)

To bigfella, the 300w thing was to spirit. The crap is your 26A theory, because that is all it is, a theory and an easily and already disproven one at that. It isn't that there are exceptions, it is that it is entirely false.

Is it advisable to have a better quality PSU, of course, will they generally have at least 26A on the 12V rail, wattage depending, yes they will, however the cards fo not need 26A, there are decent quality, low wattage units with less than that which will be able to handle a video card just fine. What you are giving is good advice, but you are also giving false "facts" that should not be quoted as true
 
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