Computer reboot loop, no bios (video).

[Juusuhako]

Hey everyone,
I turned on my PC not long ago only to find it in a constant reboot loop.
When I turn it on, it turns itself off after a second. Then it turns itself on again and lasts for a few more seconds... A last time it shuts down and turns itself on, whereas I get a signal and it goes to some "DualBios"-screen where theres nothing, and then it just shuts down, rinse and repeat... Everything worked fine yesterday.
Video: YouTube

I tried:
-Reset cmos jumper
-Remove cmos battery
-Use only internal graphics
-Run with only 1 ram block

Whats also weird is the bios screen (the white one in the video) is an older bios version that what I usually ran. The new bios I ran had a black startup screen, so it seems it rolled backwards to an older bios, and now nothing works. I can NOT access bios, as when I press DEL it just goes to this DualBios-screen. Basically, I have no controll.

Motherboard: Gigabyte Z77X-D3H, i5-3570K.

 

[SeekaX]

It's bricked. I doubt you can do anything about it if removing the BIOS battery for a couple minutes didn't help.
Do you still have warranty on the mainboard?

/edit
Is there a dual BIOS switch on the mainboard?
If there is you migth be able to load the secondary factory BIOS and repair your main BIOS, if there isn't, it's bricked.

 

[Juusuhako]

It's bricked. I doubt you can do anything about it if removing the BIOS battery for a couple minutes didn't help.
Do you still have warranty on the mainboard?

/edit
Is there a dual BIOS switch on the mainboard?
If there is you migth be able to load the secondary factory BIOS and repair your main BIOS, if there isn't, it's bricked.

After trying some weird method holding down the power button and turn the psu on/off 3 times (without removing my finger from power button), it finally did something at the DualBios screen telling me the main bios was corrupted and it fixed it by itself, although running with the "old" bios now which im fine with.

The whole shutting-itself-off-and-turn-on-by-itself-again-during-boot has happened many times before. I would turn it on and it would run for a few seconds, go off and then on again and then into windows. I never understood why, but as long as it worked and went into Windows I didnt think much of it. All of this happened since I upgraded my parts, the mobo is completely new. The CPU/Ram is used.

I guess I should be happy someone in here told me to buy this GB board with DualBios. I just dont understand how the heck it gets corrupted from one day to the other. Everything worked fine yesterday, what exactly happened to bios when I was asleep? Gnomes?

Im afraid its gonna happen again some time in the future, at least if it keeps shutting itself off from time to time during boot and then on by itself again, I have just no idea how to find out whats causing this, and as long as it boots into Windows right after, how can I call it faulty?

 

[Davva2004]

Is your BIOS chip socketed or soldered? If socketed you may be able to get a spare from your motherboard manufacturer. If soldered, it'sfubar.

 

[SeekaX]

After trying some weird method holding down the power button and turn the psu on/off 3 times (without removing my finger from power button), it finally did something at the DualBios screen telling me the main bios was corrupted and it fixed it by itself, although running with the "old" bios now which im fine with.

The whole shutting-itself-off-and-turn-on-by-itself-again-during-boot has happened many times before. I would turn it on and it would run for a few seconds, go off and then on again and then into windows. I never understood why, but as long as it worked and went into Windows I didnt think much of it. All of this happened since I upgraded my parts, the mobo is completely new. The CPU/Ram is used.

I guess I should be happy someone in here told me to buy this GB board with DualBios. I just dont understand how the heck it gets corrupted from one day to the other. Everything worked fine yesterday, what exactly happened to bios when I was asleep? Gnomes?

Im afraid its gonna happen again some time in the future, at least if it keeps shutting itself off from time to time during boot and then on by itself again.

Nobody knows, you learn something new every day when it comes to PCs.
Your method of fixing the PSU seems very weird to me as well, was that an instruction by Gigabyte?
Have you been running a beta BIOS?

 

[Wraith]

From what you say the Bios has failed and rolled back to the older version, the older version may not be compatable with some of your hardware, try booting without your graphics card & sound card.

Have you got a copy of the latest bios flash from Gigabyte? If so, USB boot it using QFlash option at boot up.

 

[Juusuhako]

Is your BIOS chip socketed or soldered? If socketed you may be able to get a spare from your motherboard manufacturer. If soldered, it'sfubar.

I have no idea, but it works now as mentioned above.

Nobody knows, you learn something new every day when it comes to PCs.
Your method of fixing the PSU seems very weird to me as well, was that an instruction by Gigabyte?
Have you been running a beta BIOS?

Yes, the bios is from January 7th and is listed as Beta. The reason for this is because when I first put together the parts, I couldnt get a signal using my GPU, only the internal Intel graphics would give me a signal. After updating bios (even though the changelog only mentioned something about fixing some audio stuff), I for some reason got a signal. Now, however, I still get a signal, even though its the "old" bios, which is cool.

I found the instruction in a Tomshardware topic:
Found solution. It was corrupted BIOS. So I tried force bios recover - disable PSU power, hold front power button, enable PSU, when fan starts, disable PSU, repeat 3 times (without releasing front power button) and it will go to recovery screen and it will flash bios

It didnt actually go to no recovery screen, the DualBios-screen simply decided to "work".

From what you say the Bios has failed and rolled back to the older version, the older version may not be compatable with some of your hardware, try booting without your graphics card & sound card.

Have you got a copy of the latest bios flash from Gigabyte? If so, USB boot it using QFlash option at boot up.

I couldnt flash or anything, it wouldnt let me enter bios or anything. Using the method listed above, it recovered my bios.

 

[barnsley]

what psu do you have? that might be causing some motherboard issues.

 

[Juusuhako]

what psu do you have? that might be causing some motherboard issues.

I have a Thermaltake Toughpower 750W, I dont remember when I bought it, but its defo least 4-5 years old. I've been thinking the same, because like mentioned my PC will randomly shut itself off during boot, and then turn it on by itself and then into Windows whereas it will all work fine.

750W whould be more than enough however, but I have read about motherboards not always being compatible with some PSUs, but how can you ever tell if a PSU will work well with a motherboard?

 

[barnsley]

I have a Thermaltake Toughpower 750W, I dont remember when I bought it, but its defo least 4-5 years old. I've been thinking the same, because like mentioned my PC will randomly shut itself off during boot, and then turn it on by itself and then into Windows whereas it will all work fine.

750W whould be more than enough however, but I have read about motherboards not always being compatible with some PSUs, but how can you ever tell if a PSU will work well with a motherboard?

That psu is getting on a bit. I kinda have a feeling thats the cause

 

[Juusuhako]

That psu is getting on a bit. I kinda have a feeling thats the cause

Could be the cause of the random shutdowns. I dont assume its the cause of a corrupted bios though.

 

[RobCrezz]

I would avoid the Gigabyte beta UEFI bios's, not great. I tried it on my old Z68 board and you lose quite a few options like LLC.

 

[Juusuhako]

I would avoid the Gigabyte beta UEFI bios's, not great. I tried it on my old Z68 board and you lose quite a few options like LLC.

Honestly I have no idea what LLC is (Other than it has something to do with OC and I can find it under "CPU Voltage"-options. )

I fixed my bios ages ago, and since then I've just bumped up my cores to 4.3, turned off thermal monitor and Vcore is running at Auto. Unless im gonna be benchmarking I dont see any point in letting it run 4.3 constantly, may aswell let it downclock as it pleases.