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post #11 of 33
Thread Starter 
Quote:
Originally Posted by CDub07;12040854 
Where are u from? That power is no good also. Give us a location and we can find u a better PSU in ur area.

I'm from Macedonia the MS psu was pretty good price 45$ compated to the cheap psu's which costs around 15-20$... also haves 1 year warranty and here is no warranty for psu's under 70-80$... the seller told me that is a strong psu and will handle my card and configuration without a problem. Is it so risky to run the system with this psu? I don't have a budget for a new upgrade. Anyway i have warranty for all parts so if anything unwanted happen i gues i'll get a replacement.
post #12 of 33
Quote:
Originally Posted by Alexandar View Post
I'm from Macedonia the MS psu was pretty good price 45$ compated to the cheap psu's which costs around 15-20$... also haves 1 year warranty and here is no warranty for psu's under 70-80$... the seller told me that is a strong psu and will handle my card and configuration without a problem. Is it so risky to run the system with this psu? I don't have a budget for a new upgrade. Anyway i have warranty for all parts so if anything unwanted happen i gues i'll get a replacement.
Well you are drawing more power than the power supply can even provide. IMO it's risky to even draw the same amount it actually provides, especially when the power supply is of unknown quality. I didn't even calculate a full system power consumption, that was just the CPU, video card, and hard drive. I didn't count fans or anything else so I'd imagine you've eclipsed that number by quite a bit. The other power supply you mentioned is a little better, not sure of the quality difference, but if it actually puts out 19A that's ~228W. It's cutting it close but it just might work. Remember this, you may have a 1 year warranty but in the end if it fails and takes your system with it you'll be sitting pretty with a working, of questionable quality power supply and a dead system. After going through something like that I'm sure you'd elect not to use the replacement PSU and will have learned the hard way that one of the most important components of a build is the power supply.
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post #13 of 33
Quote:
Originally Posted by C.Jackson View Post
Well you are drawing more power than the power supply can even provide. IMO it's risky to even draw the same amount it actually provides, especially when the power supply is of unknown quality. I didn't even calculate a full system power consumption, that was just the CPU, video card, and hard drive. I didn't count fans or anything else so I'd imagine you've eclipsed that number by quite a bit. The other power supply you mentioned is a little better, not sure of the quality difference, but if it actually puts out 19A that's ~228W. It's cutting it close but it just might work. Remember this, you may have a 1 year warranty but in the end if it fails and takes your system with it you'll be sitting pretty with a working, of questionable quality power supply and a dead system. After going through something like that I'm sure you'd elect not to use the replacement PSU and will have learned the hard way that one of the most important components of a build is the power supply.
This.

PSUs are some of the most understated components in a system, yet it can mean the difference between stable system and unstable system.

A GTS 250 requires at least a 24A on the 12V. Like C.Jackson stated, you could risk it and run it with that PSU, but you'd be pushing it to its limits; that's never a good thing.

You could try selling both those PSUs and shelling out an extra $40 on top for a decent one.
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post #14 of 33
Quote:
Originally Posted by Primus View Post
A GTS 250 requires at least a 24A on the 12V.
I never go by what the manufacturer recommends. The truth is that nVidia and ATI don't want a ton of customers yelling and moaning that their computers aren't working right with their cards. Therefore they are a little gracious with their numbers as they don't know which exact components you are running. As enthusiasts we should take the numbers with a grain of salt. The most important number you can take from nVidia or ATI is the TDP of a video card. You can calculate a fairly accurate number for reference instead of taking a general number from nVidia or ATI. Here's a rundown of the OP's rig:

AMD Athlon II X2 (65W)
GTS 250 (150W)
320GB 7200RPM Hard Drive (7W)
Optical Drive (18W)

All fans are different and I don't know exactly what he's running but on average most 120mm fans draw 3W or more. We're talking about, at full load, ~240W required from the 12V rail. It's no wonder why you're running into problems trying to run this system on a power supply that only provides you with 192W on the 12V rail! A 1 year warranty isn't going to protect your other components. As I said before....


Quote:
Originally Posted by C.Jackson View Post
Whether it's the problem or not I'd definately be replacing that thing ASAP before it dies and takes something with it.
Like I mentioned in my previous post, the other power supply does provide more power where you need it. 19A on the 12V rail, ~228W, if you trust the sticker. It might work better but it's still underpowering your computer with an sub-par quality power supply.
Edited by C.Jackson - 1/17/11 at 7:19am
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post #15 of 33
Thread Starter 
Thanks for the answers... I'll go tomorrow to replace the PSU with one compatable with my configuration.

How AMPS from +12V rail should be enough for my system? Minimum and enough?
post #16 of 33
i would look at something with atleast 40amps...

it is more then you need...

but it means you can upgrade without having to replace it again
post #17 of 33
Quote:
Originally Posted by Alexandar View Post
Thanks for the answers... I'll go tomorrow to replace the PSU with one compatable with my configuration.

How AMPS from +12V rail should be enough for my system? Minimum and enough?
It's always better to get a bigger power supply than you actually need. This way it'll run cooler and you'll have a larger upgrade path in the future. That being said, you can only buy what you can afford. If you can't afford to go bigger look around for one with atleast ~25A on the 12V rail. That will give you a little room to play with and you won't be pushing it too hard. I don't know what brands you've got around there but here are a few power supplies I'd recommend on a budget:
  • SeaSonic SS-350SFE 350W
  • Antec EA-380D 380W
  • Silverstone ST40F-ES 400W
  • Antec NEO ECO 400C 400W
  • Antec Basiq BP430 430W
  • Corsair CMPSU-450VX 450W
  • Corsair CMPSU-500CX 500W
  • PC Power & Cooling PPCS500D 500W

Granted I've listed some power supplies that are under 400W, you shouldn't look at anything rated for less than 400W. Do not look at power supplies that say max on the box, that will tip you off that it's a cheap power supply. All of the good brands are rated for continuous power. Make sure, no matter what brand you buy, that the power supply you choose has atleast 25A on the 12V rail. If it has two 12V rails make sure they have atleast ~16A on each rail. Like I said before, you should always buy a power supply larger than you need. It will last longer, run cooler, and you won't have to replace it when you're ready for your next upgrade. If you can afford it, you can disregard the list above and, look for a power supply with 40A+ on the 12V rail. That way your power supply will pretty much be future proof no matter which upgrades you plan to make in the near or far future. If you need an idea of what brands are good look to the list above. Those are the best brands in the power supply business.
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post #18 of 33
PC Power & Cooling
Stay away from it. It is made by OCZ now.
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post #19 of 33
PSUs are the most common component that people cheap out on. Your cpu might be the brains, but the PSU is the heart that pumps the blood.
If you needed a heart transplant you wouldn't tell the doc to throw a pig's heart in th save a quid, would you?
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post #20 of 33
Thread Starter 
I haved 2 suggestions from a friend:

1st: Glacial Power 550w 36 amps on +12V (around 45$)
2nd: Chieftech 370W Realpower (around 60$)
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