How to repair a black screen (no video) on boot?

On a relevant inquiry to this one, currently I have a file web server whose power supply and also followers rotate up, yet obtains no video and also no beep codes.

I have actually attempted 2 various video cards in the system, and also neither sends out any kind of signal to the display. The display is a well-known excellent one ; simply obtained it from a functioning web server. The system does not have any kind of disk drives attached to it - - simply a power supply, motherboard, CPU, CPU followers, complete memory, and also the video card.

I've attempted the noticeable "swap the cards" method. Exist any kind of various other factors I can repair for dead video? CMOS? Memory?

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2019-12-02 02:57:11
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Answers: 5

An empty screen does not always show a busted video card, maybe anything in the pre boot series. The reality that you are not obtaining an CMSO beeps shows that it is not also POSTing effectively, so it can conveniently be CPU, RAM, Motherboard.

However the only means to figure out what is incorrect is to exchange out parts and also see what jobs.

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2019-12-03 04:53:43
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You can absolutely examine the video card by attempting it in a functioning system.

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2019-12-03 04:52:25
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Yes. I do not assume there is a far better device than "Swap the Cards". Nonetheless in many cases you obtain extra capacity to repair when the system is separated. As an instance I have actually seen some celebrations that the mommy boards make beep tones when the PCI cards are gotten rid of.

There are some pluggable tools called "Diagnostic cards". The supplier asserts they can be made use of to detect such concerns. I attempted one card yet not satisfied with the outcome. You might locate some economical Chinese things here.

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2019-12-03 04:51:37
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It does seem like it is not also POSTing. Negative memory is not likely to stop it at the very least reaching POST, yet it is very easy sufficient to examination by getting rid of almost one DIMM, after that attempting once more with a various DIMM simply to ensure. Maybe the CPU yet in my experience it is more probable to be the motherboard - anything that french fries the CPU is most likely to take the board out with it also. Possibly not the PSU if the followers job, yet you can not rule it out.

  1. Get in touch with 2 various DIMMs individually - not likely yet very easy
  2. Check with various PSU, CPU if you have spares
  3. Replace the motherboard.
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2019-12-03 04:51:21
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Keep getting rid of hardware till you do get a beep.

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2019-12-03 04:45:36
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