Question Older Computer will no longer post.

[Axil00]

I'm trying to make sure i'm reading the Q-codes correctly in my ~10yr/o system that no longer wants to post.

my Motherboard is a ASUS MAXIMUS VII HERO Z97 ATX DDR3 2600 LGA 1150 which provides displays the q-codes directly on the motherboard. When i attempt to power on the system the following numbers flash over the course of 5-6seconds, then the computer restarts and tries to boot again. At no time do i get a signal to the monitor.

00,15,16,00,21,33,35, 39, 40, 58,65,00

There seem to be additional codes flashing too fast for me to read as well. but the last code before it shuts itself down always seem to be 58, 65, 00. My understanding is that code 65 indicates a CPU problem. I'd be willing to replace the CPU if that would fix the problem but wanted advice on whether that's likely to work.

This problem started a week ok, resolved itself after i unplugged all the peripherals and plugged them back in. Then started happening again during a reboot.

I did read the pinned post about situations where this happens but that seemed to apply to a situation where this occurred after a new build or a hardware change. This PC worked fine for years, so i doubt something became randomly unseated, though if that's possible i could surely check.

Spec List:
Case: Corsair Carbide 500R
PSU: Rosewill Capstone series 550w 80 plus gold
Mobo: ASUS MAXIMUS VII HERO Z97 ATX DDR3 2600 LGA 1150
CPU: I7-4790K
GPU: MSI LIMITED GAMING Edition GeForce GTX 970 4GB OC
RAM: Kingston HyperX FURY 8GB Kit (2x4GB) 1600MHz DDR3 CL10 DIMM - Blue (and another 2 sticks of 4 GB ram i can't remember the branding on. It was tested and worked for years, but could be an issue)
Cooler: Phanteks PH-TC14PE (hate this thing, it's so big it has to be removed to touch the ram or GPU)
SSD: Samsung 850EVO 250gb
HDD: Seagate 3TB

 

[Lutfij]

You forgot to mention the make and model of your ram and your discrete GPU. As for your PSU, have you tied sourcing(borrow, not buy) a reliably built unit and tried power the system with the bare minimum parts(while breadboarded?

 

[Bob.B]

I'm trying to make sure i'm reading the Q-codes correctly in my ~10yr/o system that no longer wants to post.

my Motherboard is a ASUS MAXIMUS VII HERO Z97 ATX DDR3 2600 LGA 1150 which provides displays the q-codes directly on the motherboard. When i attempt to power on the system the following numbers flash over the course of 5-6seconds, then the computer restarts and tries to boot again. At no time do i get a signal to the monitor.

00,15,16,00,21,33,35, 39, 40, 58,65,00

There seem to be additional codes flashing too fast for me to read as well. but the last code before it shuts itself down always seem to be 58, 65, 00. My understanding is that code 65 indicates a CPU problem. I'd be willing to replace the CPU if that would fix the problem but wanted advice on whether that's likely to work.

This problem started a week ok, resolved itself after i unplugged all the peripherals and plugged them back in. Then started happening again during a reboot.

I did read the pinned post about situations where this happens but that seemed to apply to a situation where this occurred after a new build or a hardware change. This PC worked fine for years, so i doubt something became randomly unseated, though if that's possible i could surely check.

Spec List:
Case: Corsair Carbide 500R
PSU: Rosewill Capstone series 550w 80 plus gold
Mobo: ASUS MAXIMUS VII HERO Z97 ATX DDR3 2600 LGA 1150
CPU: I7-4790K
Cooler: Phanteks PH-TC14PE (hate this thing, it's so big it has to be removed to touch the ram or GPU)
SSD: Samsung 850EVO 250gb
HDD: Seagate 3TB

Remove the gpu and connect to the igp....test.

 

[Axil00]

You forgot to mention the make and model of your ram and your discrete GPU. As for your PSU, have you tied sourcing(borrow, not buy) a reliably built unit and tried power the system with the bare minimum parts(while breadboarded?

Unfortunately I have no access to parts i don't purchase, and no unused PSU's, so swapping parts isn't possible unless I buy new stuff. I also added the missing info, i knew i hadn't listed enough components but couldn't remember which i'd missed.

Remove the gpu and connect to the igp....test.

I'm willing to do this, but in that case is there a smaller (not too pricy) CPU cooler that is compatible with my rig you might recommend? I'll have to remove the cooler to remove the GPU and at that point i'd rather be able to test my RAM too without having to remove and replace the cooler block every time i change the ram configuration.

 

[Axil00]

*Update*

I was able to remove the GPU and all the ram other than DIMM in the A2 slot.

At first the PC would turn it itself on and off rapidly, this happened around 10 times before it appeared to boot and is no longer showing a Q-code. However my monitor is not detecting any signal coming from the IGPU's HDMI connection.

I'm going to try reinstalling the discrete GPU and see if i can grab a signal that way, but i'm unsure why the IGPU wouldn't send a signal, any ideas?

*edit*
I couldn't get a signal out of the discrete GPU either, i've also noticed the CPU_LED is lit up. Not flashing, just lit solid whenever the power is on.

 

[Bob.B]

*Update*

I was able to remove the GPU and all the ram other than DIMM in the A2 slot.

At first the PC would turn it itself on and off rapidly, this happened around 10 times before it appeared to boot and is no longer showing a Q-code. However my monitor is not detecting any signal coming from the IGPU's HDMI connection.

I'm going to try reinstalling the discrete GPU and see if i can grab a signal that way, but i'm unsure why the IGPU wouldn't send a signal, any ideas?

*edit*
I couldn't get a signal out of the discrete GPU either, i've also noticed the CPU_LED is lit up. Not flashing, just lit solid whenever the power is on.

Is it possible you disturbed the cpu in the socket when removing the cooler?

Perhaps a reseat of the cpu.

 

[beyondlogic]

*Update*

I was able to remove the GPU and all the ram other than DIMM in the A2 slot.

At first the PC would turn it itself on and off rapidly, this happened around 10 times before it appeared to boot and is no longer showing a Q-code. However my monitor is not detecting any signal coming from the IGPU's HDMI connection.

I'm going to try reinstalling the discrete GPU and see if i can grab a signal that way, but i'm unsure why the IGPU wouldn't send a signal, any ideas?

*edit*
I couldn't get a signal out of the discrete GPU either, i've also noticed the CPU_LED is lit up. Not flashing, just lit solid whenever the power is on.

possible motherboard death.

also could be a power supply issue.

remove all ram apart from 1 ram stick in slot 2

 

[Axil00]

Is it possible you disturbed the cpu in the socket when removing the cooler?

Perhaps a reseat of the cpu.

When i got everything apart (sorry, nearly 10yr since i adjusted hardware in this thing) i realized that I could just remove the fans from the cooling block and remove the RAM and GPU. It was very tight, and some pressure was applied to the cooling tower taking out the RAM but i didn't actually have remove it.

It won't hurt to try to reseat the CPU before buying a new one though.

possible motherboard death.

also could be a power supply issue.

remove all ram apart from 1 ram stick in slot 2

I have already removed all ram except the one in slot 2 (A2). This is what makes me nervous about buying a new CPU. I don't have a spare CPU MOBO or PSU to test, and honestly if it's the motherboard or PSU i'd rather be looking into a new system than spending the time/money replacing components and rebuilding the whole thing.

What i'm trying to figure out is whether it's worth burning the ~$150 on a cpu and crossing my fingers that's the problem.

 

[beyondlogic]

When i got everything apart (sorry, nearly 10yr since i adjusted hardware in this thing) i realized that I could just remove the fans from the cooling block and remove the RAM and GPU. It was very tight, and some pressure was applied to the cooling tower taking out the RAM but i didn't actually have remove it.

It won't hurt to try to reseat the CPU before buying a new one though.

I have already removed all ram except the one in slot 2 (A2). This is what makes me nervous about buying a new CPU. I don't have a spare CPU MOBO or PSU to test, and honestly if it's the motherboard or PSU i'd rather be looking into a new system than spending the time/money replacing components and rebuilding the whole thing.

What i'm trying to figure out is whether it's worth burning the ~$150 on a cpu and crossing my fingers that's the problem.

nah it would be better just to rebuild a new system its quite old

if you want to determine if the psu is any good you could get a cheap psu tester.

all should light up on this model minus the -5v as thats on older psus ancient

https://www.amazon.com/Sutinna-Supp...se&keywords=psu+tester&qid=1720050347&sr=8-20

or this one
https://www.amazon.com/ASHATA-Compu...-1-spons&sp_csd=d2lkZ2V0TmFtZT1zcF9hdGY&psc=1

 

[Axil00]

Thank you everyone for the help. Looks like i'll be building a new computer for my daughter. She deserves one after dealing with hand-me-downs for years anyway... now i just gotta reacquaint myself with modern hardware, haven't built a new rig since covid.