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Review feature request: destructive testing

Q

Quartz-1

Supreme [H]ardness
Joined
May 20, 2011
Messages
4,257
Specifically, in forthcoming reviews I'd like to see [H] test if the PSU will sacrifice itself to protect the rest of the PC. I'm sure that this will be obvious with poorer-quality PSUs and not require testing.
 
So you are asking to [H] risk their entire test bench by providing unrealistic loads and voltage peaks to the PSU?... man, what [H] do it's already "destructive", everything that pass the stress test made by Paul are really good quality pieces of hardware as they are already tested under hot and heavy stress conditions beyond oft what's supported/stated by the PSU manufacturers in every of their reviews if the PSU is good enough they overload until the PSU Fail.. isn't that "destructive" enough for you?.

EDIT: corrected misspelled words.
 
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Quartz-1 said:
Specifically, in forthcoming reviews I'd like to see [H] test if the PSU will sacrifice itself to protect the rest of the PC. I'm sure that this will be obvious with poorer-quality PSUs and not require testing.
Click to expand...

PM or email me for shipping information. As soon as I have your PC here I'll be happy to start testing to see if your PC survives. ;)
 
You don't have to test with actual PC components. You could measure the current at all the outputs when the PSU fails.
 
Quartz-1 said:
You don't have to test with actual PC components. You could measure the current at all the outputs when the PSU fails.
Click to expand...

I am not a doctor but I don't think it works like that.
It's actually only real life components, with inductance, capacitance and resistance placed on multiple output rails that would cause a dying PSU to go berserk.
A simulated load, like a purely ohmic meter, might be able to cheat death.
Even then, there are many ways a PSU can fail. Not all PSUs of a given make and model will have the same defect, such as badly routed wires or a strategically placed solder blob.
What would be possible is to look more heavily at the overcurrent/short circuit/overload/other circuitry and try to evaluate their implementation based on what components are used. Even then, looking at the choice of components doesn't tell whether the design is sane for a given topology.
 
I am assuming this would require the kind of equipment the FCC uses to test stuff. Car & Driver can road test a car but they aren't going to slam into a wall to see how a dummy survives. This is sort of the same concept here.
 
Quartz-1 said:
You don't have to test with actual PC components. You could measure the current at all the outputs when the PSU fails.
Click to expand...

Right but I have to test with something and your PC is going to be much cheaper for you to replace than the test equipment is for me to have repaired and re-calibrated. Beyond that, as noted above, there are many failure modes and each time I find a specific one before hitting the end of the list I need a new PSU at the very least.
 
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