- Oct 2, 2018
- 2
- 0
- 10,520
Hello everyone,
first of all I've been following this forum for possible problems that occurred to me in the past, and I have to say you guys are awesome!
Unfortunately the problem I have now seems to be above me, and I couldn't find a good solution. The problem is that whenever I try to boot the computer, there is no post. In some cases I get an A2 error, and in others an A0 (everything is fine, control handed so OS), but in any case I get no answer from the screen.
It started when I was using the computer at a very low charge, just an old program that therefore needed a special screen configuration to work, nothing else. All of a sudden, the screen went black, but the PC was working normally: no strange noises, no change in fan speed, literally nothing, just no post.
After rebooting, I got the A2 code error, so that's when I started to look for a solution. Here is all I have tried:
I have seen people suggesting that it could be the PSU, but I have no way of testing it. Anyway, my guess was that it wasn't the case given the 'hints' that this problem is giving me: when I booted with just 1 ram and the OS drive, I could even log in my account, and the load was too low to raise a problem. In addition, I could see how every part of the PC gets energy without any difference from a normal situation.
Just to clarify, I have cleaned everything and all cables are correctly adjusted, so this is not a matter of a loose cable, sadly.
I have seen a huge lot of posts in multiple forums and webpages about a similar problem, even the same problem, but in the end some of the things I have tried solved their problem. Maybe this is the next solution that the next person will add to their list of attempts! Haha
Update: I can see and get input if I connect it to a TV with HDMI! I'm going to try to reset the GPU drivers and to work with the BIOS from the BIOS itself, any ideas of what to do?
Thank you all in advance, it means a lot to me,
Kriegor
first of all I've been following this forum for possible problems that occurred to me in the past, and I have to say you guys are awesome!
Unfortunately the problem I have now seems to be above me, and I couldn't find a good solution. The problem is that whenever I try to boot the computer, there is no post. In some cases I get an A2 error, and in others an A0 (everything is fine, control handed so OS), but in any case I get no answer from the screen.
It started when I was using the computer at a very low charge, just an old program that therefore needed a special screen configuration to work, nothing else. All of a sudden, the screen went black, but the PC was working normally: no strange noises, no change in fan speed, literally nothing, just no post.
After rebooting, I got the A2 code error, so that's when I started to look for a solution. Here is all I have tried:
-Unplug the computer and wait for some minutes. Didn't work, as expected.
-Tried using a different screen. Nothing.
-Removed the GPU and used the iGPU with all 3 possible connections with the screen (DVI, VGA and HDMI). Nothing, no post from the iGPU no matter what.
-Removed all RAMs but 1, and all drives but the one containing the OS. Nothing, still no post and A2 error.
-Trying to get at least any image to go to the BIOS, I tried removing the OS drive as well, so it was just Motherboard, 1 RAM, keyboard and screen. Still nothing.
-Just in case, I have also tried to boot without the CMOS battery, to no avail.
-I also tried clearing the CMOS and using the USB flashback for an older version of the BIOS, and the current one (currently in Beta). This did something! Now, using VGA or HDMI, I get the A0 code and I can hear how it successfully boots the OS, so I could even log in my account. However, there is still no answer from the screen.
I have seen people suggesting that it could be the PSU, but I have no way of testing it. Anyway, my guess was that it wasn't the case given the 'hints' that this problem is giving me: when I booted with just 1 ram and the OS drive, I could even log in my account, and the load was too low to raise a problem. In addition, I could see how every part of the PC gets energy without any difference from a normal situation.
Just to clarify, I have cleaned everything and all cables are correctly adjusted, so this is not a matter of a loose cable, sadly.
I have seen a huge lot of posts in multiple forums and webpages about a similar problem, even the same problem, but in the end some of the things I have tried solved their problem. Maybe this is the next solution that the next person will add to their list of attempts! Haha
Update: I can see and get input if I connect it to a TV with HDMI! I'm going to try to reset the GPU drivers and to work with the BIOS from the BIOS itself, any ideas of what to do?
Thank you all in advance, it means a lot to me,
Kriegor
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