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Windows 7: Computer shutting itself off randomly. PSU issue?

25 Sep 2019   #1
realflow100

Windows 7 Pro x64
 
 
Computer shutting itself off randomly. PSU issue?

it randomly powers off as if i have unplugged it and I suspect its the power supply being overloaded JUUUUST enough for it to turn off after a while

so I have decided to go the new power supply route and get this
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

Power supply. and adapter to work with my computer. (Power supply itself is too large to fit so i'm just gonna have to deal with it dangling out the back of my computer sitting on my desk)
i'll probably use hot glue or something to glue the power supply somewhere on my computer case where its not in the way so its not just dangling around or sliding around my desk.
My computer is on my desk on its side (on its side is the normal way for my computer model)
and my monitor is sitting on top of the case.
I'm really bummed about having to waste money on a new power supply but the one that my pc came with just isnt good enough to handle maxed out upgrades.


My System SpecsSystem Spec
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25 Sep 2019   #2
realflow100

Windows 7 Pro x64
 
 

for now I have unplugged 2 hard drives and unplugged my dedicated graphics card and went to using integrated graphics until I get my new power supply. I scanned both my two hard drives in my pc doing full check disk and check for bad sectors and came up clean no problems luckily
Is it ok to just dangle a power supply out of my computer if it wont fit and I dont mind the uglyness? as long as it works?
My System SpecsSystem Spec
26 Sep 2019   #3
F22 Simpilot

Windows 7 Ultimate x64
 
 

Before you even committed to buying a new PSU you should have chimed in here. I could probably find a SFF PSU that meets your power requirements.

Another thing is that sometimes if it's not the PSU, it could be a sticky or faulty power button.

You can use any number of PSU wattage calculators on the net to help figure out the approximate wattage needed. I like this site myself: Power Supply Calculator - PSU Calculator | OuterVision
My System SpecsSystem Spec
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26 Sep 2019   #4
F22 Simpilot

Windows 7 Ultimate x64
 
 

Well, I determined you need at least 390 watts using that PSU wattage calculator. So I looked around trying to find a SFF (Small Form Factor) PSU for your specific case at that wattage or above without luck. Trouble with SFF computers is that their PSUs are very limited and these computers are really not meant for gaming but mostly the corporate/office environment. Placing a normal tower case PSU next to your computer will work, but the chassis that the PSU is bolted to provides ground. So perhaps you could screw in a wire to the PSU screw hole and mount that line to your case metal somewhere as a ground. Or simply keep the PSU butt up against metal on your case. A ground wire to the computer chassis would be the better way to go.


Find the right size for the PSU screw chassis mount. https://www.ebay.com/sch/i.html?_fro...minal&_sacat=0

Then search eBay for the right size gauge wire for the ring terminal.

You may need one of these or go the poor man route and use a pliers to squeeze the ring connector on the wire. Although, you'll need to be able to strip the wire. Error Page | eBay
My System SpecsSystem Spec
26 Sep 2019   #5
realflow100

Windows 7 Pro x64
 
 

HP 8300 elite SFF has a weird L-shaped power supply where half the power supply is like a slab and cut off to make room for the hard drive underneath and stuff. dont think that would work

I'll just run an alligator clip to it that will probably be good enough.
My computer PSU right now doesnt even screw in. it just sorta hooks and slots into place.

Pretty much no standard ATX/micro ATX or mini ATX or flex power supply will fit in my computer
my only option is to dangle the power supply out the back of my computer and run a ground cable and run the wires through the opening in my case. and bolt or glue the power supply somewhere on my computer case. hoping the cables are long enough (they should be they look pretty long in the image for the PSU i ordered)
I was thinking a simple idea. hot glue gun and alligator clip.
My System SpecsSystem Spec
27 Sep 2019   #6
F22 Simpilot

Windows 7 Ultimate x64
 
 

If you glue the PSU to the top of your computer you won't be able to get in your computer should you need to replace hardware like a hard drive.
My System SpecsSystem Spec
27 Sep 2019   #7
realflow100

Windows 7 Pro x64
 
 

I'm not gonna glue it to the side cover lol. i'm talking about the like one of the other free sides.

Plus hot glue comes off effortlessly if you get a little rubbing alcohol on it.
My System SpecsSystem Spec
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27 Sep 2019   #8
realflow100

Windows 7 Pro x64
 
 

YIIIIIKEEEES!!!!!!!!!! HOLY CRAP
It was such a good idea to upgrade my power supply!
When I took the old one out I noticed the power pin connectors were darkened on the some of the ground wires noticably! for the motherboard mostly (a six pin connector) and slightly for the CPU connector. SCARY STUFF! its a miracle its been working as long as it has already!
I got the new power supply installed and set up and working and it seems to work great!
All hard drives getting their own dedicated sata cable directly from the power supply.
And the CPU and motherboard also getting their own power cables too!
My System SpecsSystem Spec
27 Sep 2019   #9
Megahertz07

Windows 7 HP 64
 
 

Good you fond a solution.
Please mark this thread as Solved.
My System SpecsSystem Spec
27 Sep 2019   #10
TechnoMage2016

Windows 7 Professional, SP1, x86
 
 

Over the past decade, I've bought three different PSU testers, as the technology has changed.
That's an invaluable tool for Technicians or technically minded PC enthusiasts.


Whenever I remove a PSU from a PC, I always take it apart, just to see how many Bulging Capacitors there are. The PSU fans are usually of pretty high quality and I save them to possibly use for Case fans, etc.


What used to really gripe me, was the number of cheap PC's that came out with PSU's rated at less than 200 watts. I won't even waste my money on any PSU today, of less than 500 Watts.



Whenever I'm deep enough into a PC to change a PSU, I also install a new CMOS battery. As habits go, it's a very Good One!


Cheers Mates!
TM
My System SpecsSystem Spec
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 Computer shutting itself off randomly. PSU issue?




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