PC turns on, no beeps, no bios, and no display. Motherboard, CPU, PSU or Something else?

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znucks

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Nov 7, 2017
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Hello all, long time reader, first time poster.

Somehow out of the blue my PC "died" last night. I went to power it up and it only powered on for a quick second before powering down. I pulled out the battery on the motherboard and placed it back in and my PC was up and running, but now I wasn't receiving any display.

I tried to reseat my GPU, switched around all the ram sticks, tried to boot with only one ram stick (each individual stick), and even left it unplugged overnight hoping for a miracle.

The only constant result that I'm getting is my motherboard (ASUS ROG Strix X99) has two 00's on the digital display when powering on, when usually reads 30. I called ASUS Tech Support and the gentlemen I spoke with believes it's a CPU problem, but wants me to test using another CPU.

So before I go out and purchase another CPU, does anyone have any suggestions as to what my problem may be? I've read everything from the motherboard, CPU, GPU, and the PSU.

Any and all help would be greatly appreciated. As I'm sure you can imagine, I'm beyond frustrated.

I'm currently running an MSI GTX 1080 Armor Edition, an ASUS ROG Strix X99 Mobo, Intel i7 6800K cpu, and a 1000 watt Corsair Gold Rated PSU (don't remember the exact model).
 
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rocktalkrock
I have to say i don't have any good ideas why your PC has stopped booting, but i'll suggest a few things for you to try.

1. If you have not already tried, switch your video card from the top PCIe x16 slot to one of the other three x16 slots on your board. See if that makes any difference.

2. Your motherboard has 4 small POST State LED's located between the 24pin power connector and the ram slots. 1 CPU_LED, 1 DRAM_LED, 1 VGA_LED, 1 BOOT_DEVICE_LED [SSD]. If an error is found, the critical component’s LED stays lit up until the problem is solved. Watch these lights as your PC is booting up and see what they do.

3. This may seem very basic but double check the memory sticks are pushed down all the way in their sockets. It will often...
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Satan-IR

Satan-IR

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Hi there!

Just connect 24-pin and 8-pin with a single RAM stick (no HDD/SSD optical drive just the CPU cooler fan) and see if it turns on or the CPU fan spins?

If you have case fans connect them next and see if they spin when you power on.

I would check the PSU and motherboard first before buying another CPU.

You can also visually inspect the motherboard for any signs of burns or bulging/swollen capacitors.

Yes 00 means CPU is not running but it can be a faulty PSU or motherboard. CPUs don't just die like that unless the PSU or motherboards do something really nasty to them in terms of surges and very high voltage or current. Hell, a bad PSU can even damage your house by burn it down!
 
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rocktalkrock

rocktalkrock

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According to the ROG STRIX X99 GAMING motherboard manual, 00 on the Q-Code LED literally means nothing.

Chapter 1, page 18 - Q-Code table

Code: 00 - Description: Not used

Also i would not buy a second CPU under any circumstance. I can't believe Asus Technical Support would even suggest such a ridiculous idea. I'll think a bit more about your problem and reply again if i have any other suggestions.
 
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Z

znucks

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Nov 7, 2017
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Hi Satan-IR,

The fans do power up and spin when powering the PC on. The only fans that don't turn on are the 2 fans on my MSI GTX 1080 Armor. I know they don't start spinning until it hit's 60 degrees, but I honestly can't remember if they at least spin during start up.

The motherboard isn't showing any signs of burns, bulging or swollen capacitors.I didn't think my CPU would just crap out like that, but I guess I can't totally rule it out.

My next step is to try and boot the PC without the GPU. I don't have any onboard graphics, but I should be able to at the very least get to my bios (if it is a GPU issue, correct?)
 
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znucks

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Nov 7, 2017
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Paul, you're right. I have no idea why i even thought thay would work. I guess the frustration is getting the best of me lol.

I know Satan-IR mentioned about it possibly being a PSU, and I've had a few coworkers mention that as a possibility as well. So i guess I'll try and get my hands on a PSU.
 
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znucks

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Nov 7, 2017
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That's true, what was i thinking lol. The frustration is getting the best of me.

Some of my coworkers seem to think it's the PSU, and i know Satan-IR mentioned thst being a possiblity too.
 
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znucks

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Nov 7, 2017
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The PC worked perfectly fine this past Sunday evening (11/5/17). Finished playing Destiny 2, put the PC to sleep, came home from work on Monday and thats when it all started. It was literally out of nowhere. No power outages or anything like that.
 
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rocktalkrock

rocktalkrock

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That's not quite what i'm asking. What i'm wondering is how long, since your PC was first assembled, have you been using it without any problems. Day, weeks or months. If it's been running for months without any problems and then this problem pops up, is different than if you just finished assembling the computer a few days before, and then the problem appears.
 
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Satan-IR

Satan-IR

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OK fans powering up makes it a bit more difficult to diagnose if it's the PSU or the board.

Yes VGA fans usually do spin up at boot and then stop until they hit the temps that's set in their profile/fan curve.

Yes you can try with no GPU but yes no GPU no display.

Can you by any chance take the motherboard and CPU outside the case put them on some non-conductive surface (like thick cardboard) and test them? Are you sure the motherboard is not shorting to the case body metal? Is the board sitting firm on raisers?
 
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znucks

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Sorry for misunderstanding the question. It's actually been fine for 16 months (that's how long it's been assembled). It wasn't moved recently for cleaning or anything like that either.
 
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rocktalkrock

rocktalkrock

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Jul 4, 2017
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I have to say i don't have any good ideas why your PC has stopped booting, but i'll suggest a few things for you to try.

1. If you have not already tried, switch your video card from the top PCIe x16 slot to one of the other three x16 slots on your board. See if that makes any difference.

2. Your motherboard has 4 small POST State LED's located between the 24pin power connector and the ram slots. 1 CPU_LED, 1 DRAM_LED, 1 VGA_LED, 1 BOOT_DEVICE_LED [SSD]. If an error is found, the critical component’s LED stays lit up until the problem is solved. Watch these lights as your PC is booting up and see what they do.

3. This may seem very basic but double check the memory sticks are pushed down all the way in their sockets. It will often appear the sticks are properly inserted but they are just slightly out. This will cause just the sort of problem you are having, and you did mention you have been moving the memory sticks around.

Give these a try, along with anything else you can think of and let us know what you find.
 
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