Computer turns on and off and turns on...

[desvest]

Hello, how are you all? today I come with a new problem. I had the whole old computer to which I mounted the repaired graphics card (which works) and the Samsung EVO 860 SSD that the new computer does not recognize. To all this, the old computer worked but... I connected everything and when I turned it on, the fans turned on for 2 seconds, it turned off, it tried to start again... it turned off and so on. I disconnected everything (graphics card, RAM and disk, the battery too but I reconnected it after a minute) and I started it, the computer turns on, it stays like that and beeps, so I ruled out the motherboard, correct? then I put only the RAM and again problem, I remove RAM and put the graphics card, problem continues. To all this, could it be a problem with the power supply that is failing and can't power everything?

[Sylver]

@desvest Hello,

It's a bit of a mystery to know what the specific fault is with those disparate symptoms, but if it helps, I'll tell you about my similar experience...

Don't completely rule out the motherboard, as that's exactly what happened to me - the computer would try to turn on and turn off by itself, at random intervals of two seconds or so. I managed to stabilize it by removing one of the graphics cards and all the less important add-ons (PCIe expansion cards, non-essential USB devices, etc.).

After a few days of working well, it suddenly turned off and there was no way to revive it. The board effectively died completely and I had to replace it with another one. The rest of the components continued to work well on the new replacement board, including the power supply.

In your case, if you suspect the power supply, you just have to remove the one from the newer computer and try it in the older computer with all its components connected. If everything works well, you'll know that the problem was the power supply. If it continues to do strange things, I would keep thinking about the motherboard.

Best regards

[_Neptunno_]

@desvest if you have a power supply unit that you know is good, you could test it, because from what you say, it might be a problem with the power supply of that PC.
The next option to test is to remove the motherboard and test it outside the case, just in case the mobo is touching some metal part of the chassis.

I hope it's not a problem with the motherboard, as @Sylver rightly said. So try testing first with the power supply

Best regards!

[desvest]

Thanks for the comments Sylver and _Neptunno. Someone nearby sells one for 8 euros, I'll go with it to try it out. I had already changed this motherboard because the previous one had exploded, so either the power supply is doing something wrong or also check that nothing is touching the board, but since I had stopped the computer it was working fine. I'll let you know. Thanks!

[defaultuser]

@desvest You put only the motherboard first, and it should give you the beep for cpu failure, then you mount the processor and it should give the beep for ram failure, then you add the ram and so on.
When it gives you another beep (or none) then something is up.
You should know the beep code.

The graphics card is the last thing you install, if it's the repaired one, the exploded capacitor could be the result of something else that's not working right.

And the power supply is the other usual suspect.

[jordiqui]

@defaultuser mascadito. Los tiempos cambian, pero los pasos a seguir y descartar no varian tanto en el tiempo.

[Clipper]

@jordiqui said in Computer turns on and off and turns on...:

@defaultuser mascadito. Times change, but the steps to follow and discard do not vary much over time.

Man...
Some more current boards have a screen on the board that tells you the error.
But indeed the previous comment is correct, step by step you always find the problem.
Regards

[defaultuser]

@clipper Mine doesn't have a screen but fortunately it has some colored LEDs that give the same basic information. But with the old one I did have to check the codes once.

[desvest]

@jordiqui said in Computer turns on and off and turns on...:

@defaultuser mascadito. Times change, but the steps to follow and discard do not vary much over time.

Exactly. That's because the CPU was ruled out because it always worked well, which is why I left it connected. Fortunately, this computer at least has the speaker for the beeps. The new one, when I built it and all that, didn't do anything and I was surprised to see that it doesn't have anything and the MB doesn't have a screen or LED either. It was like going blind.

[Clipper]

@desvest said in Computer turns on and off and turns on...:

@jordiqui said in Computer turns on and off and turns on...:

@defaultuser mascadito. Times change, but the steps to follow and discard do not vary much over time.

Exactly. That's because I ruled out the CPU because it always worked well, that's why I left it connected. Fortunately, this computer at least has the speaker for the beeps, the new one, when I built it and stuff, it did nothing and I was surprised to see that it doesn't have anything and the MB doesn't have a screen or LED, it was like going blind.

My current motherboard is this: MSI MPG X570S EDGE MAX
And it doesn't have a screen or leds.
The old-fashioned speaker and off to the races.
Regards

[defaultuser]

@clipper said in Computer turns on and off and turns on...:

@desvest said in Computer turns on and off and turns on...:

@jordiqui said in Computer turns on and off and turns on...:

@defaultuser mascadito. Times change, but the steps to follow and discard do not vary much over time.

Exactly. That's because I ruled out the CPU because it always worked well, that's why I left it connected. Fortunately, this computer at least has the speaker for the beeps, the new one, when I built it and stuff, it didn't do anything and I was surprised to see that it doesn't have anything and the MB doesn't have a screen or LED, it was like going blind.

My current motherboard is this: MSI MPG X570S EDGE MAX
And it doesn't have a screen or leds.
Speaker of the old school and off to the races.
Regards

I understand that MSI has been doing well with the boards for am4, even surpassing models from well-reputed brands, that of the speaker must have been to cut costs against the competition, otherwise it would be a negative point in an edge max depending on how you look at it.

[Clipper]

@defaultuser said in Computer turns on and off and turns on...:

@clipper said in Computer turns on and off and turns on...:

@desvest said in Computer turns on and off and turns on...:

@jordiqui said in Computer turns on and off and turns on...:

@defaultuser mascadito. Times change, but the steps to follow and discard do not vary much over time.

Exactly. That's because I ruled out the CPU because it always worked well, that's why I left it connected. Fortunately, this computer at least has the speaker for the beeps, the new one, when I built it and stuff, it did nothing and I was surprised to see that it doesn't have anything and the MB doesn't have any screen or LED, it was like going blind.

My current motherboard is this: MSI MPG X570S EDGE MAX
And it doesn't have any screen or leds.
Speaker of the old school and off you go.
Regards

I understand that MSI has been doing well with motherboards for AM4, even surpassing models from well-reputed brands, that of the speaker must have been to cut costs against the competition, otherwise it would be a negative point in an edge max depending on how you look at it.

Depending on how you look at it, to be redundant...
If you have a tower with a window, you'll see the leds or the screen, if that's not the case... you won't see anything and you'll have to open the pc.
Idem if you have the tower under the table.
Anyway, I read an interesting article criticizing the current mid-range motherboards.
Basically they said that they put unnecessary things in.
Like three or four PCI express ports when practically no one mounts sli
More than one mn2 port for the same reason (which wasn't my case, I mounted 2)
Wifi antennas, which in a desktop you normally use an RJ cable
And the collection of sata ports for the same reason
Regards

[defaultuser]

@clipper said in Computer turns on and off and turns on...:

@defaultuser said in Computer turns on and off and turns on...:

@clipper said in Computer turns on and off and turns on...:

@desvest said in Computer turns on and off and turns on...:

@jordiqui said in Computer turns on and off and turns on...:

@defaultuser more or less. Times change, but the steps to follow and discard don't vary much over time.

Exactly. I discarded the CPU because it always worked well, that's why I left it connected. Fortunately, this computer at least has the speaker for the beeps, the new one, when I built it and stuff, didn't do anything and I was surprised to see that it doesn't have anything and the MB doesn't have a screen or LED, it was like going blind.

My current motherboard is this: MSI MPG X570S EDGE MAX
And it doesn't have a screen or LEDs.
The old-fashioned speaker and off to the races.
Regards

I understand that MSI has been doing well with the motherboards for AM4, even surpassing models from well-reputed brands, that of the speaker must have been to cut costs against the competition, otherwise it would be a negative point in an Edge Max depending on how you look at it.

Depending on how you look at it, to say it again...
If you have a tower with a window, you'll see the LEDs or the screen, if that's not the case... you won't see anything and you'll have to open the PC.
Idem if you have the tower under the table.
Anyway, I read an interesting article criticizing the current mid-range motherboards.
Basically, they said that they stuff us with unnecessary things.
Like three or four PCI Express ports when practically no one uses SLI
More than one M.2 port for the same reason (which wasn't my case, I installed 2)
Wi-Fi antennas, which in a desktop you normally use an RJ cable
And the collection of SATA ports for the same reason
Regards

Well, that's true. The problem is that they make them almost the same in that sense.
There are people who will put special cards in the PCI (capture cards and more) but most don't, and there are no motherboards that dispense with so many slots.

There are people who want to mount several SATA drives, and even complain about few ports lately, but most don't either.
The double M.2 idem, if there are two from the CPU it might be interesting to have a RAID to save (cheaper drives to have size and cheaper speed), but having one from the CPU and another from the chipset is almost useless.

etc etc, I totally agree with everything, but I think those motherboards do have a clientele, the problem is that they don't make the option that sells the most, a PCI or one 4x more just in case you have to put something one day, an M.2 and a couple of SATA, and make a powerful motherboard but with just enough.
For me it's all marketing that we're going to do, most of the clientele is not specialized people and they sell them what they want.

Salu2.

PD: the PCIe and SATA ports are already on the chips, then the traces on the bottom of the motherboard are easy to solve and the connectors won't be expensive either. An example of a decent motherboard but without superfluos would be, for example, a Gigabyte DS3H, don't you think?