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[Tom's] Don't Be Surprised When Your Cheap PSU Blows Up - Page 7

post #61 of 75
Quote:
Originally Posted by DuckieHo View Post
PSU designs are much better today.

Most high-end PSU are 80+ Certified and do require 20% load test.
True - but people do go into overkill, thinking that having an 800W supply on a system that needs a max of 200W is somehow going to be "better". I just think people get into overkill.

Power supplies do fail, and switchmode supplies have the habit of failing traumatically. But in my experience, this is true of any power supply, from the cheapest to the most expensive. Even the "name brand" may mean little, since companies shop around for price, just like consumers. And even the best equipment can end up with bummed out components, like the shoddy capacitors that were a plague a few years ago, or by poor assembly, with transistors not mounted correctly on heatsinks, or poor solder joints, etc.

My point is, watts and cost do not mean anything, if the recommendation is to by some huge PSU at large cost - while really not drawing enough from it to be worthwhile. And names - sometimes computer PSUs will have dramatically different costs and different name brands, and the case will even look different, but they end up with the same board from the same OEM manufacturer. Add to that the uncertainty if whether you are buying the real deal, or some second cast off packaged in fake materials...
post #62 of 75
SMPS units (of quality) implore multiple protections to protect the computer if they do fail traumatically. So that's not really a concern anymore.
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post #63 of 75
They got them off of eBay?

I do not order anything from Hong Kong or China without assuming it's fake and won't work completely as intended. You'll find most of the items bought in bulk being sold out of North America and Canada now as well.

If this is the case for these PSU then I don't know what else they'd expect? Almost any battery you purchase from HK will not be as many mAh as it claims.

The idea itself is totally valid, although in my opinion often looked at a bit too closely.

I have never had a PSU die from a computer drawing too much power even while OCing. Sure, I could possibly have a better OC and less draw from the wall with a better PSU, but that's not the point they're making.

I have a 550w Rosewill PSU (Best Buy/Futureshop in house brand) which has powered my AMD PII x4 OCed, 4xDDR2 DIMM, GTX 460 OCed, 2xSATA HDD (non green) and who knows what through USB and it's been stable as a rock.

The only time I will spend more on a PSU is if I were putting together a server or HTPC that would require lots of up time as I'd want better efficiency.
    
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post #64 of 75
My HEC worked fine for over 2 years then started to have trouble supplying all the power my parts needed; it just caused freezing now and then.

So I bit the bullet and spent money for a good supply, and now I feel better
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post #65 of 75
I was hoping for pictures of exploded PSUs.

To sum it up; in most cases, you get what you pay for.
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post #66 of 75
Is this considered news? I'm confused.
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post #67 of 75
I wonder how many guys in this thread bragging about their cheap psu's will start threads entitled "Help!!! Computer smoking and refusing to switch on!"

Buy a good psu folks. End of story...
post #68 of 75
The truth is that there are some low cost power supplies that will do just fine at light loads in basic machines. For our lowest end builds we sometimes use a case that costs $27 for a midtower case and a 430watt psu. In the last year we've only had one die.

There are cheap power supplies and then there are cheap/fraudlent power supplies. For a very basic computer that will only see light use a cheaper psu can be ok.
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post #69 of 75
Quote:
Originally Posted by Peroxide View Post
They got them off of eBay?

I do not order anything from Hong Kong or China without assuming it's fake and won't work completely as intended. You'll find most of the items bought in bulk being sold out of North America and Canada now as well.

If this is the case for these PSU then I don't know what else they'd expect? Almost any battery you purchase from HK will not be as many mAh as it claims.

The idea itself is totally valid, although in my opinion often looked at a bit too closely.

I have never had a PSU die from a computer drawing too much power even while OCing. Sure, I could possibly have a better OC and less draw from the wall with a better PSU, but that's not the point they're making.

I have a 550w Rosewill PSU (Best Buy/Futureshop in house brand) which has powered my AMD PII x4 OCed, 4xDDR2 DIMM, GTX 460 OCed, 2xSATA HDD (non green) and who knows what through USB and it's been stable as a rock.

The only time I will spend more on a PSU is if I were putting together a server or HTPC that would require lots of up time as I'd want better efficiency.
Many power supplies of this "quality" level can also be found on Newegg and Amazon.
post #70 of 75
Quote:
Originally Posted by Tator Tot View Post
You should most likely be looking to into deals then. Cases that come with PSU's and what not.

Like this InWin
Won't argue with you there!
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