Pc can't boot some times

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xx.oo.anas.oo.xx123

Jun 7, 2018
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Hi, it's my first time here, so I wish to be welcome in the community.

So my problem is, from time to time my pc just can't boot properly, the psu ran, fans and the hdd but it display nothing. But when I change ram slots it can boot (not in the first try,and
some times just with one stick)
I tried memtest86 but all is good

Can you guys help me??

Ps :2x4go ddr4 rippjawz V 2133
 
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CaptainCretin

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Jul 18, 2016
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As smorizio, sounds like your psu is struggling to supply enough power to get the PC started.

PCs draw a lot more power in the first 20-30 seconds, as they get everything spun up, especially if everything is "cold"; this is why a 2nd, 3rd attempt can work, the device motors are already partially energised and turning slightly, regulator capacitors are already partially or fully charged and the current draw needed is a lot lower.

Start up is also a stressful tine for the cpu, as it loads the OS, so it too draws more power than when it is idling or performing basic background tasks.

The amount of power a psu can supply drops slowly as the psu gets older, so what was fine 5 years ago, could be marginal now, even if no components have been changed.
 
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xx.oo.anas.oo.xx123

Jun 7, 2018
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0
10
I don't think the problem is the psu, because some time I can just came and turn the pc one properly. I even ran a stress test many times, but I will search for another psu and try to test mine in some other

Ps : Im using a silverstone sx500-lg
 
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