EZ debug light on without any problems

[hermesa]

So , days ago I noticed that VGA ez debug light on my ASUS TUF Gaming B550 Plus Wifi II is on randomly when I turn on my pc. Everything working fine ,(GPU is RX 7700 XT) ,bios ver is updated to the last 3607. tried GPU stress test and it works fine. Yesterday it happened and after reseting the pc it was fixed for the whole day.Today I turned on my pc again ,and right now the light is ON again.What can it be ,and what should I do ?

 

[Bill_Bright]

What does your manual say it means?

 

[Solaris17]

What does your manual say it means?

Haha this made me chuckle.

For Bill is right OP go see what they define it as.

 

[GerKNG]

are your power connectors properly plugged in?

 

[Bill_Bright]

Haha this made me chuckle.

I was in a kind mood this morning. Typically I would say, "RTFM".

 

[hermesa]

I was in a kind mood this morning. Typically I would say, "RTFM".

Yeah , imagine I know what ez debug lights mean without the need of reading the manual...

are your power connectors properly plugged in?

Yes , they are . Tried testing the gpu board power/cable power , everything is fine. Furmark test also run without any problems. I reseted the bios.2-3 days already there is no such a problem but I will keep an eye.

What does your manual say it means?

Do you really need to read the manual so you can understand that VGA light on is for GPU problems ?It's universal for every mobo.I mean , its named ''EZ debug light'' ...That's what I am saying , VGA light is on when there are no obvious problems with the GPU itself and the light is white , not red or orange.You just pretend to be funny or what...If you can't help , then just don't bother ?

 

[_ALB_R3D X]

Just turn on your monitor,wait for the panel to fully turn on and then boot your pc.
Debug light should be gone.
My board does this every time I boot

 

[DaemonForce]

Guys it's a debug lamp, not a POST code. This could mean any number of things. It's also an Asus TUF board like mine. When there's a stuck lamp it's usually accompanied by beep codes.

Build 3607 appears eerily similar in date to the 5013 bios I'm looking at for my X570 TUF board. I've been trying to squeeze information from Asus support techs about the VGA lamp issue when plugging in certain cards but my old bios has made troubleshooting things escalate as a non-starter.

What errors are you getting, what display and power cables are you using and how many PCI-E lanes are going to what devices?

 

[Waldorf]

@hermesa
tried re-seating gpu? different slot?

 

[hermesa]

Guys it's a debug lamp, not a POST code. This could mean any number of things. It's also an Asus TUF board like mine. When there's a stuck lamp it's usually accompanied by beep codes.

Build 3607 appears eerily similar in date to the 5013 bios I'm looking at for my X570 TUF board. I've been trying to squeeze information from Asus support techs about the VGA lamp issue when plugging in certain cards but my old bios has made troubleshooting things escalate as a non-starter.

What errors are you getting, what display and power cables are you using and how many PCI-E lanes are going to what devices?

I don't get any errors ,neither post error codes or any problems during working/gaming on the computer.Normal boot, normal work ,even the pc passes the benchmakrs I putted it under after seeing the light on in order to see if there is any loose conection or bad plug on the GPU and check the power delivery to the GPU. Just the VGA light was on , after a restart of the pc it was fixed , but on the other day it was on again.Honestly after I reseted the bios via CMOS pin and CMOS battery , for now it's good (2-3 days already).I use normal European 230v power cable for my EVGA G2 supernova 650watt gold PSU , and 2 separate 6+2 PIN(Y-shaped) cables for my GPU as it should be. GPU is placed good in the GPU slot and there are no loose connections. And another thing ...I was using my ram at 3200MHZ XPM profile for 1 month , and 2 weeks ago the PC crashed (frozen desktop).After restart I saw that the DRAM bug light is on (red colour).Reseated the RAM sticks and the pc turned on,after 1 min of work , the PC crashed again.I lowered down the Mhz manually(because until now it was D.O.C.P profile) to 2933 mhz or smth like that and it works fine.I don't think the RAM sticks are the problem , but seeing another problem with my GPU(which is brand new) I start to think it's something with the mobo(which mobo is also brand new).Maybe it is the mobo , maybe it is the BIOS reset option that fixed the GPU bug light , maybe its the ram sticks that are faulty , or it's just the mobo...Who knows

@hermesa
tried re-seating gpu? different slot?

Nope , there are only 2 slots , the main one is x16 lanes and the second one is i think something smaller which make the GPU slower I think.Not very aware of how it works.But the problem is not in the slot I think.Also there is no bending in my GPU placement comparing to the mobo.

I don't get any errors ,neither post error codes or any problems during working/gaming on the computer.Normal boot, normal work ,even the pc passes the benchmakrs I putted it under after seeing the light on in order to see if there is any loose conection or bad plug on the GPU and check the power delivery to the GPU. Just the VGA light was on , after a restart of the pc it was fixed , but on the other day it was on again.Honestly after I reseted the bios via CMOS pin and CMOS battery , for now it's good (2-3 days already).I use normal European 230v power cable for my EVGA G2 supernova 650watt gold PSU , and 2 separate 6+2 PIN(Y-shaped) cables for my GPU as it should be. GPU is placed good in the GPU slot and there are no loose connections. And another thing ...I was using my ram at 3200MHZ XPM profile for 1 month , and 2 weeks ago the PC crashed (frozen desktop).After restart I saw that the DRAM bug light is on (red colour).Reseated the RAM sticks and the pc turned on,after 1 min of work , the PC crashed again.I lowered down the Mhz manually(because until now it was D.O.C.P profile) to 2933 mhz or smth like that and it works fine.I don't think the RAM sticks are the problem , but seeing another problem with my GPU(which is brand new) I start to think it's something with the mobo(which mobo is also brand new).Maybe it is the mobo , maybe it is the BIOS reset option that fixed the GPU bug light , maybe its the ram sticks that are faulty , or it's just the mobo...Who knows


Nope , there are only 2 slots , the main one is x16 lanes and the second one is i think something smaller which make the GPU slower I think.Not very aware of how it works.But the problem is not in the slot I think.Also there is no bending in my GPU placement comparing to the mobo.

It doesn't seems to be a problem with the GPU at all ,because if it was something , then the light should be red or orange and I couldn't boot.(I don't have integrated graphics on my CPU [ryzen 5 5600x] ) The light stayed like forever(until restart) in white colour like when the pc boots up and the number of lights go on and switch one-another in order to boot.But this one stayed while I was in desktop mode browsing and gaming - until reboot.And I noticed that happened only in the morrning...At 22:00-23:00 I turn off the pc(not sleeping mode but power off) and it happened in the morrning two days in a row.The first day I tought it's some bug or something.If I try to reboot my pc many times after the light is on ,then It doesn't show up anymore.Now is fixed somehow after I reseted the bios via CMOS.

 

[Bill_Bright]

Do you really need to read the manual so you can understand that VGA light on is for GPU problems ?

Yes. While many manuals are woefully inadequate at explaining anything, let alone what a particular LED means when lit, others go into detailed explanations explaining what it means when lit. And also, they may explain what it means when the LED goes on and off, or changes color, particularly when there may be a pattern to that - like beep codes with different series of long and short beeps, or in this case, periods of lit and unlit.

I am not saying the manual will provide anything conclusive, if anything at all. But it should still be checked.

Yeah , imagine I know what ez debug lights mean without the need of reading the manual...

That's pretty much my point. We don't know you. We don't know your level of expertise. We can't read minds yet when a poster doesn't tell us what they have already done to resolve the problem, the only thing we have left to do is "imagine".

Sadly, RTFM came about because people don't. They frequently don't check the obvious, like "is it plugged in?" "Is it turned on?" This is why GerKNG question...

are your power connectors properly plugged in?

... made perfect sense.

I see you reseated the RAM but did you try reseating the graphics card as @Waldorf suggested? Even if you don't have a different slot to use, reseating does two important things, (1) removing and re-inserting the card will scrape [hopefully] clean any dirty contacts of the card and the slot to ensure maximum continuity through the contacts and (2) it [again, hopefully] insures the card is fully inserted in the slot.

my GPU(which is brand new) I start to think it's something with the mobo(which mobo is also brand new).Maybe it is the mobo , maybe it is the BIOS reset option that fixed the GPU bug light , maybe its the ram sticks that are faulty , or it's just the mobo...Who knows

Have you tried a different graphics card?

my EVGA G2 supernova 650watt gold PSU

I happen to prefer EVGA SuperNova Gold supplies (and am upset they seem to be going out of business - but that's a different discussion). However, even the best makers of the best models can (and will) occasionally produce a unit that does not perform to specs. Since EVERYTHING inside the computer case depends on good, clean stable power, ensuring I am providing it is always an initial step in troubleshooting potential hardware issues. This is particularly true when the problems are odd, intermittent, and hard to isolate.

So I recommend you swap in a known good PSU and see what happens - ESPECIALLY before RMAing or buying anything else. If the problems persists, this will, if nothing else, verify your current supply is good.

 

[hermesa]

Yes. While many manuals are woefully inadequate at explaining anything, let alone what a particular LED means when lit, others go into detailed explanations explaining what it means when lit. And also, they may explain what it means when the LED goes on and off, or changes color, particularly when there may be a pattern to that - like beep codes with different series of long and short beeps, or in this case, periods of lit and unlit.

I am not saying the manual will provide anything conclusive, if anything at all. But it should still be checked.


That's pretty much my point. We don't know you. We don't know your level of expertise. We can't read minds yet when a poster doesn't tell us what they have already done to resolve the problem, the only thing we have left to do is "imagine".

Sadly, RTFM came about because people don't. They frequently don't check the obvious, like "is it plugged in?" "Is it turned on?" This is why GerKNG question...

... made perfect sense.

I see you reseated the RAM but did you try reseating the graphics card as @Waldorf suggested? Even if you don't have a different slot to use, reseating does two important things, (1) removing and re-inserting the card will scrape [hopefully] clean any dirty contacts of the card and the slot to ensure maximum continuity through the contacts and (2) it [again, hopefully] insures the card is fully inserted in the slot.


Have you tried a different graphics card?


I happen to prefer EVGA SuperNova Gold supplies (and am upset they seem to be going out of business - but that's a different discussion). However, even the best makers of the best models can (and will) occasionally produce a unit that does not perform to specs. Since EVERYTHING inside the computer case depends on good, clean stable power, ensuring I am providing it is always an initial step in troubleshooting potential hardware issues. This is particularly true when the problems are odd, intermittent, and hard to isolate.

So I recommend you swap in a known good PSU and see what happens - ESPECIALLY before RMAing or buying anything else. If the problems persists, this will, if nothing else, verify your current supply is good.

Yes , the PSU is working fine.I used it in my previous build.The RAM reseating was another case,and yes , I reseated both RAM and GPU. I checked this mobo manual , and it says almost nothing about the Q-LED lights.
This is all the info aboutez debug lights on this mobo:

''The Q-LEDs check key components (CPU, DRAM ,VGA, and booting devices) during the motherboard booting process. If an error is found, the critical component's LED stays lit up until the problem is solved.''
''The Q-LED provide the most probable cause of an error code as a starting point for troubleshooting. The actual cause may vary from case to case''

In most places on the internet it says that it is loose connection with the GPU and mobo,or outdated BIOS. But I don't think that's the case with me because BIOS is the last version which is available in ASUS website for this mobo and the GPU is set good.

 

[Bill_Bright]

Unless the PCIe slot is damaged, a loose connection there is extremely rare. Typically, if a loose connection, it was not inserted properly in the first place. Reseating typically deals with that.

A loose PCIe or supplemental graphics card power connection is possible, but again, rechecking all power connectors deals with that. If the last bios update and the current update don't address the problem, it probably is not that.

You could try one stick of RAM at a time.

And if me, I would still try a different PSU.

 

[95Viper]

Just a reminder... People come for help. So, play nice and be helpful.

 

[hermesa]

Unless the PCIe slot is damaged, a loose connection there is extremely rare. Typically, if a loose connection, it was not inserted properly in the first place. Reseating typically deals with that.

A loose PCIe or supplemental graphics card power connection is possible, but again, rechecking all power connectors deals with that. If the last bios update and the current update don't address the problem, it probably is not that.

You could try one stick of RAM at a time.

And if me, I would still try a different PSU.

I cleared the PCIe with a little air blow , and then cleared the GPU pcie port gently with a brush.But it doesn't seemed that there is any dust or something like that blocking the connection because the build is 2 months old and there is no significant dust flow in my room or even gathered in the pc case. I hate dirty PC and always clean my pc as soon as I see even a little dust. I have an apartment in the centre of my city which is close to a big road , and there is plenty of dust gathering with the time inside the apartment.But right now I live in my house far away from big roads and it's quite clean.
Also I think that white light signals for ''OK'' on this particular mobo(only boot light is green when it's OK).If there is a problem it signals in red or orange. When I boot , its first the DRAM(red going to white) next is CPU(red going to white) ,then VGA (red going to white) and the last one is boot lightning up only in green. If there is any problem with any of the components it turns red or orange and I couldn't boot.So that's why I am more
inclined to belive that it is some kind of bug with the BIOS or bad mobo rather than loose connections.

I don't have another PSU to try with.RAM is not a problem since I underclocked it manually. I should buy brand new RAM as well ,but its expensive in my country and I will have to wait. I want to buy RGB RAM sticks (white sticks to fit good with my white build config) and they are around 180 dollars -like 360 BGN here...considering the minimum salary is 930 BGN So yeah..I will have to collect money for some time until I can afford it.

 

[DaemonForce]

The lamps are generally for initialization. When they get stuck, the item listed is the stumbling block.
There have been strange criticisms about certain features getting locked out by newer hardware on a lot of these boards lately.
What happens if you lock the PCI-E interaction at Gen 3?

 

[Bill_Bright]

I cleared the PCIe with a little air blow , and then cleared the GPU pcie port gently with a brush.But it doesn't seemed that there is any dust or something like that blocking the connection because the build is 2 months old and there is no significant dust flow in my room or even gathered in the pc case.

That's great but it is important to know that when a card is properly seated in the slot, they (almost all connectors, as a general rule) are designed to keep dust and contaminates from getting in. So unless something is damaged, or not inserted completely in first place, even in a dusty environment, dirty contacts would not be a problem. Reseating is often suggested in the event there was not a good connection in the first place, or when a device has been left unused and exposed for long periods of time allowing potential corrosion or dirt to settle on the contacts. Reseating scraps those contacts clean.

Dust build-up creating a blanket that traps heat is another issue, but that does not seem to be an issue here.

LEDs changing colors during boot would not concern me. It is important to remember HW drivers are not loaded until well into the boot process after a successful POST (power-on self test) and the boot drive is finally accessed. What matters is the status of the lights once fully booted.

BIOS bugs are very rare. More importantly, when they do happen, they don't last long as BIOS bugs tend to affect many, not just one or two. If the date of your BIOS shows it have been awhile, it likely is not a bug.

Maybe you could temporarily borrow a PSU from a trusting friend or relative? As a technician, I always want to ensure I am delivering good, clean stable power before I focus on anything else.

the build is 2 months old

Well, for sure, you don't want to do anything that might void the warranty.