No display output after bios and Me update

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butasimyunu15bc02df

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Hi i have an MSI H81M-P33 motherboard with an Intel Pentium G3260 and after i updated my bios and me to the latest version it said "bios updated successfully system will reboot in 5 seconds" then it started turning off and on until i cut the power and turned it on myself and now i get no display please help
 
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Can you please list all your components including PSU model?

What you can try, remove the mains power from the PSU or turn it off, then bridge the two JBAT1 pins (next to the CMOS battery) with a screwdriver for a few seconds to perform a Clear CMOS. Because other than this, with this older low-end board model, you don't have any onboard diagnostic or BIOS-flashing help (no EZ Debug LEDs, no Flash BIOS Button).
 
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citay said:
Can you please list all your components including PSU model?

What you can try, remove the mains power from the PSU or turn it off, then bridge the two JBAT1 pins (next to the CMOS battery) with a screwdriver for a few seconds to perform a Clear CMOS. Because other than this, with this older low-end board model, you don't have any onboard diagnostic or BIOS-flashing help (no EZ Debug LEDs, no Flash BIOS Button).
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Yes, i shorted jbat1 pins and removed the cmos, waited for 5 minutes then reinstalled the cmos and powered on the pc still no display, what else can i do? Also my cpu is a pentium g3260, with 6gb of ram, and a 128gb ssd, the psu is a 400w Game in game modular psu. Also the pc was broken before due to a power surge so the psu is replaced
 
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When you turn on the PC, do the fans turn on?

Can you look up the exact model of the PSU, or take a photo of the PSU with the sticker visible? "400W Game in game" sounds like a no-name, very low-quality PSU, to be honest. What can sometimes happen with a PSU that's too overly bad and/or old, the flashing process can appear to succeed, but the BIOS got corrupted during flashing, then the board cannot boot afterwards.

A brand-name, quality PSU would be able to take a power surge, it would just turn itself off, but not take damage from it. With any bigger surge, the fuses in the house would blow anyway. So that was already strange that your PSU became defective from a power surge. That's the problem with cheap PSUs, they don't have all the necessary protection circuits, and those they do have are badly calibrated and don't really protect the PSU or the attached hardware very well. So such a PSU, you wouldn't replace with the same one again, you'd get a better one.

Also, 6 GB RAM, you must have mismatched kits, or maybe even using two or three mismatched modules, which is always a bad idea. Can you tell me the exact RAM configuration?
 
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citay said:
When you turn on the PC, do the fans turn on?

Can you look up the exact model of the PSU, or take a photo of the PSU with the sticker visible? "400W Game in game" sounds like a no-name, very low-quality PSU, to be honest. What can sometimes happen with a PSU that's too overly bad and/or old, the flashing process can appear to succeed, but the BIOS got corrupted during flashing, then the board cannot boot afterwards.

A brand-name, quality PSU would be able to take a power surge, it would just turn itself off, but not take damage from it. With any bigger surge, the fuses in the house would blow anyway. So that was already strange that your PSU became defective from a power surge. That's the problem with cheap PSUs, they don't have all the necessary protection circuits, and those they do have are badly calibrated and don't really protect the PSU or the attached hardware very well. So such a PSU, you wouldn't replace with the same one again, you'd get a better one.

Also, 6 GB RAM, you must have mismatched kits, or maybe even using two or three mismatched modules, which is always a bad idea. Can you tell me the exact RAM configuration?
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The fans do turn on, also the ram is mismatched kits with 1 4gb and one 2gb stick running at 1066 Mhz, It did say "Bios updated successfully" then it started turning on and off and compeletely off after a minute with no display when i turned it back on. I tried booting with just one ram stick too btw it still gave the same issue, atp im just better off replacing the motherboard i think
 

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That PSU is electronics garbage, I'm afraid. It's a group-regulated no-name PSU of the lowest quality, you can immediately see that from the specs, it's really a 300W PSU, and that's pushing it. Not that your system actually draws close to 300W at any point, but the thing is, such PSUs tend to have very bad output quality of the voltages (high ripple, bad regulation), which could even throw off the BIOS flashing process sometimes. And, as you have experienced, such no-name PSUs cut corners everywhere they can, so they are often missing vital protection circuits. With any slight issue like a power surge, they either die immediately, or they even take other components to the grave with it.

So the first thing that has to be done here, that PSU has to go. I probably wouldn't even sell it, I'd feel too bad to sell this bad of a PSU to someone. This is a PSU you give to your enemy, not sell to a random person. So I would probably just take the loss and give it to electronics recycling. You need a brand-name PSU that's decent and at least 80PLUS Bronze rated, see my PSU guide. This is the bare minimum for a PSU nowadays.

But that's only to prevent things like this from happening again, it won't suddenly make everything work again. Because right now, if I had to guess, with a PSU like this, something went wrong during flashing, and the BIOS ended up being corrupt. The board cannot boot with a corrupt BIOS anymore. So now, the BIOS would have to be flashed properly again. Since there are no onboard means of doing that with this board model, the BIOS would have to be flashed using an external flash programmer like a CH341A, this kind of method (bit more info here). So you either need to buy such a programmer (they're cheap) and research how to flash the BIOS with it, or you ask a local PC/repair store if they are able to do this for you.

However, with your board, it's also not really worth to flash the BIOS, since it's an old low-end model. I checked on eBay, these boards regularly sell for around 20 EUR/USD, often even bundled with a CPU and RAM! See for yourself:

bundle.jpg



So you can either outright buy this board again, or you take this opportunity to upgrade the entire system, which would be about time. Get at least a 9th gen (if it's Intel) to have official compatibility for Windows 11, and do a fresh install of Win11 to it. Maybe a new SSD too, because 128 GB is not much nowadays even just for Windows and some programs.

Not to mention the RAM, such a mismatch is always a bad idea, you will only have 4 GB running as dual-channel, the remaining 2 GB of the 4 GB module will run in single-channel, which puts the already slow DDR3-1066 speed to the equivalent of DDR3-533. And that's the DDR speed, so the actual frequency would be 266 MHz equivalent performance.

Overall, there is so much worth replacing in this system that you could take this opportunity to build an entirely new one.
 
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Alright, i already have a new pc coming in with better specs with a different board model and an Asus 650w Bronze psu, i dont think its worth saving a pc that was built a decade ago..
 
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