Pc Wont Boot After Shutdown

Hi guys
My pc shutdown while gaming without warning. My thoughts are it over heated. But now she wont boot. Mobo lights are working. But other than that I get nothing. I swapped the mobo battery with new one. Still nothing. No error beeps. No spinning fans gpu is quiet too. Not sure how to troubleshoot this. So any help is greatly appreciated

 

Remove All the Ram sticks.Replace one at a time.You could have a faulty stick.If the system doesn't Boot with one of the ram sticks I would replace them.

 

I pulled in reset the ram still won't boot. Is it possible power supply could be bad even though one of the motherboard lights is on? Mobo is a asus rog strix x470 f

 

I replaced all the Ram one stick at a time in the B2 slot it still will not boot. Motherboard is a asus rog strix 470f. .None of the qleds for dram cpu vga or boot light up. Standby power led is red. Could it be the power supply?

 

That was my immediate first thought. Since everything inside the computer depends on good, clean, stable power, I always recommend swapping in a known good power supply, then see what happens.

 

Remove external devices, hubs, controllers, KB, mouse. Basically just have a display attached. Unplug the power & hold the power button for a few seconds, then plug the power back in and hit the power button. Anything? Usually if it is RAM you'll get an error code, not a "dead PC". If there still is no 'life' start with the power supply.

 

Thank you all for helping me troubleshoot.
Foogoo I did as you suggested. And nothing. New psu will arrive tomorrow. I ordered a modular cosair 750w gold.
I just stunned...there was no indication of trouble of anykind. I was midgame trashtalking then...boom...dead.
Lol must be karma. Will keep you all posted.

 

I would have tried to borrow one before spending money on a new one. I hope this fixes your problem.

Keep us posted.

 

Ugh....i found a guide on how to test my psu even though all my wires are colored coded black using the paperclip method. When plugged into wall the fan spun rightup. Does this mean the mobo gave up the ghost?

 

Here's the problem.

To properly and conclusively test a power supply unit (PSU), it must be tested under a variety of realistic "loads" then analyzed for excessive ripple and other anomalies that affect computer stability. This is done by a qualified technician using an oscilloscope or a dedicated power supply “analyzer” - sophisticated (and expensive!) electronic test equipment requiring special training to operate, and a basic knowledge of electronics theory to understand the results. Therefore, conclusively testing a power supply is done in properly equipped electronics repair facilities.

This is why swapping in a known good power supply, a tried and true troubleshooting method used by amateurs and professionals alike, is typically the best and easiest alternative.

Fortunately, there are other options that are almost as good if you don’t have a known good spare supply handy. I keep a PSU Tester in my tool bag in my truck for house calls. The advantage of this type model is that it has a LCD readout of the voltages. With an actual voltage readout, you have a better chance of detecting a "failing" PSU, or one barely within the required ±5% tolerances (at least with the tester’s internal load).

Lesser models use a single LED to indicate the voltage is present, and "hopefully" within the allowed tolerances. While less informative, considerably cheaper, they are still useful for detecting PSUs that have already "failed".

Many will suggest using a multimeter. But like a PSU tester, a multimeter can tell you if a PSU is bad (if missing or has an out-of-tolerance voltage). But typical multimeters cannot tell you conclusively that a PSU is good. Note to task the computer to where it places a variety of loads on the PSU while, at the same time, measuring all the required voltages with a simple multimeter is a real challenge, even for pros. And typical multimeters cannot test for ripple on the DC voltages either.

So we are back to swapping in a known good spare. If you get the same problems with the spare PSU, your original PSU is probably good. If the spare PSU clears your problems, your original PSU was probably bad.

 

New Powersupply is here.
What is the best way to go about this?
My plan is to just connect power and monitor and see what happens from there.

 

Okay guys new power supply is in. Motherboard is powering up I slowly began connecting everything. The last thing I reattached was my video card Radeon RX 580. Its seems to have given up the ghost when the psu died. Not up and running. Still hasnt boot up

 

Update
I now have to qled TVs on the motherboard. The VGA and boot LED are staying lit on the motherboard

 

What? What did you do?

What you should have done is installed the PSU, connected all the output power cables to everywhere they need to go (including the graphics card). And the last thing you should have attached was the power supply's cord to the wall.

 

I thought that I was supposed to only hookup monitor and pc with drives disconnected.
soooooo....the pc wouldnt boot without the videocard.
I immediately freaked out and started try to get it to boot by pulling the ram and adding one stick at a time (AGAIN)
Pulled the battery

Couldnt figure out what the heck was going on.
The Qled light for the video and the one for boot were on.
I threw in the towel and decided to take her in and have her diagnosed
Started chatting with the staff and learned something I didnt know.


My particular Ryzen processor wont boot without a video card, no onboard.
I had no idea.
Bought a new videocard.

Sadly they were out of pretty much everything.
Damnedest thing Ive seen. ALL of the cases were empty. Staff said theres been a non stop feeding frenzy on vidcards.
ended up with a radeon 560, (I dont remember the last tim I owned a videocard that ran of mobo power. I popped it in.
Everything's working again.


I have one more question guys. Could the bad power supply have caused the card to die?

Thanks again for all of your help!
You all never fail to get me up and running

 

Are you sure the original PSU is "bad"? Did you test it and log the voltage readings like Digerati instructed?

My gut is telling me the original PSU may be fine, and the GPU is what crapped the bed.

 

@Mekanic
I dont have the means to test one properly. So I bought a new one.
With the old psu my case fans wouldn't spin up for me, even with the bad video card disconnected from the psu.
With the new psu, the case fans wouldn't spin with the video card attached to the power supply, but when I disconnected the video card from the psu
the case fans would spin.
So my best guess was that there was something funky with my old pau too.
Im just trying to better understand what caused the system to bjork up.
Ive never had a video card go bad on me before. I keep my case cool and remove dust routinely.
I dont overcloack or anything like that.


Thank you
WR

 

The simple model...
https://www.amazon.com/Computer-PC-...t=&hvlocphy=9004590&hvtargid=pla-782775658685

 

You do need to make sure the new PSU is connected properly. Some of the connections can be confusing - especially between the graphics card power connectors and the ATX connectors to the motherboard. You don't want to mix them up.

Graphics cards can go bad. So if possible, if your motherboard and CPU don't support integrated graphics, you will need to try a different board.