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 LosAngelesGraff
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Registered: 06/09/06
Posts: 6,686
Loc: Califas
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 Pc question 
#15805675 - 02/13/12 08:26 PM (3 months, 13 days ago) |
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well i have 2 desktop pcs . 3 weeks back i was using my main one and the monitor went black reading no signal. i thought it was my monitor but when i conected my back up one the monitor worked. well 2 days ago the same thing happened. the pc runs but it wont show on the monitor. what might it be. ( sometimes their is this spike i can hear a pop from my pc speakers. maybe it finally blew something out?)
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koraks
Registered: 06/02/03
Posts: 16,174
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It could be many things. Do you get a beep code from the pc tower if the image doesn't show? Is the monitor cable connected properly? Are there any other symptoms or things that are out of the ordinary?
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LosAngelesGraff
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Registered: 06/09/06
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Loc: Califas
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Re: Pc question [Re: koraks]
#15809136 - 02/14/12 04:00 PM (3 months, 12 days ago) |
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i did hear a beep. im not sure if it always does that.
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koraks
Registered: 06/02/03
Posts: 16,174
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One beep is good.
So does the problem correct itself? i.e., it's there one time you turn on that particular pc, but it's gone the next time, or the time after that?
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 imachavel
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Re: Pc question [Re: koraks]
#15812971 - 02/15/12 09:51 AM (3 months, 12 days ago) |
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you told me so many times not to generalize koraks 
OP, your computer, when it turns on, it does several things, first post, power on self test, then bios load, basic input out system, finds all devices on the main board, I believe the ram loads during bios. Anyway forget specifics I don't want to get into a serious debate 
OP your hard drive, if that is indeed what you are booting to, and not an external device, is read in the boot sequence, it is detected, and the partition that the OS is installed on loads, sometimes a grub menu pops up if you have several partitions. Now once the OS loads, file system libraries, dynamic link libraries, etc. etc. all load. Your drivers help the higher level code written into the OS installed on the hdd, communicate with other devices on the main board. When a pc blue screens, the beeps should just get you past post, unless you access the bios menu, once you access the bios menu, you can view your setting, if you hit the proper f2 or f12 to get into these settings.
a blue screen, could be a driver error, memory paging error, a hardware memory error, etc. A bad driver can usually be fixed in safe mode. to access safe mode hold f8 when you are booting into the computer. Now I can't fix all your problems from here, I'm not going to do a team viewer(unless you really want to) and I definitely don't want to debate with other members over what the problem is, only you can fix it. I don't browse this forum 24/7 but still wish you the most luck in solving your problem. Koraks can help you fix this problem, I'm sure he can. But now that you realize a good beep means your power on self test has passed, you will need to provide more info to find out what the specific error is.
Let' start with, the make and model of your computer please, what make and model, what brand, what operating system. Then we can get deeper into if the problem is software related, hard ware related, OS won't load, virus, what not, whatever it is that could be causing this problem. If it's windows perhaps a windows repair needs to be used, perhaps your date needs to be backed up and the OS entirely re installed, if you can figure out how to get your files off the hard drive. Perhaps it's not that serious, and a driver failed to load, or a ram stick needs to be re allocated.
Now all this is going to be confusing, which is why, TO BE SPECIFIC, YOU NEED to give more details. When did this problem occur? Do you share files between the two computers? Any usual programs installed, updates that occured, something that looked like a virus, without more info it just isn't possible to assist you
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koraks
Registered: 06/02/03
Posts: 16,174
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Quote:
imachavel said:
you told me so many times not to generalize koraks
Are you referring to the 'one beep is good' comment? Because that's actually true. One beep = standard BIOS signal that everything is in order and the system can boot. It's a good thing to check if you don't get screen output when booting.
But I figure I misread the problem and the screen actually goes blank while you're using the computer. If that's the case, what were/are you doing when the screen goes blank?
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LosAngelesGraff
Ca Shroomite
Registered: 06/09/06
Posts: 6,686
Loc: Califas
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Re: Pc question [Re: koraks]
#15814942 - 02/15/12 05:25 PM (3 months, 11 days ago) |
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one is a really old dell desktop pc running windows xp. and the other is a hp pavilion slim line running windows 7. the problem is when i turn them on now, the monitor will read 'no signal'. when this first happened, i just swooped the new one with the old ond and the monitor read the signal fine. then as i wasnt doing nothing out of the norm, the pc sounded like it blew something, or something powered down. yet it seemed to be still running yet the monitor screen read no signal?
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Shroomism
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Loc: The Void 
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Shut it down, open up the case and reseat the graphics card / peripherals/ blow any dust out of there and the slot, check all your cables and connections and make sure they are all secure.
Then try powering it back on and do you get all the fans turning on in the system? Just one beep?
Are you saying the same thing is happening on two different desktops now? What are the actual model numbers?
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imachavel
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yes does he mean swapped monitors or swapped towers? If he meant swapped towers, then the gpu on one is not being read at all. I've never actually 'reset' a gpu by just opening the tower, although I've looked around in the bios for gpu settings. If the gpu is added into a pci or agp slot, get a screw driver, remove it, reseat it. If it's on board it might be blown.
Edited by imachavel (02/15/12 07:26 PM)
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koraks
Registered: 06/02/03
Posts: 16,174
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Quote:
LosAngelesGraff said:
then as i wasnt doing nothing out of the norm, the pc sounded like it blew something, or something powered down. yet it seemed to be still running yet the monitor screen read no signal?
Sounds like one of the fans died. Open up the case and inspect the fans; I bet they are clogged with dust. Try if they turn without friction as well. After checking/cleaning, power up the machine (while it's still open) and observe if the fans turn ok without making any rattling noises etc. There's a fair chance that your problem is caused by the GPU fan (the one on the video card) malfunctioning and the GPU overheating as a result.
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cokane
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Re: Pc question [Re: koraks]
#15820608 - 02/16/12 07:24 PM (3 months, 10 days ago) |
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I had a HDMI cable crap out on me one time, I would try another cable or if your computer has more than 1 video output like a VGA /DVI try plugging into that.
Loud pop makes me think fan in power supply unit, just a guess.
Do you know how to use a multi-meter?
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LosAngelesGraff
Ca Shroomite
Registered: 06/09/06
Posts: 6,686
Loc: Califas
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Re: Pc question [Re: cokane]
#15834334 - 02/19/12 07:08 PM (3 months, 7 days ago) |
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ok i noticed two fans went out. I'm sure its the fans. ill try to replace them.
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DrugzRBad
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Re: Pc question [Re: cokane]
#15862573 - 02/25/12 03:46 PM (3 months, 1 day ago) |
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You have 2 PCs right. Here is what do:
Swap parts (One at a time) out of the "bad" PC and replace them with parts from the good machine. I would start with the Ram (if their compatable) due to the fact it can cause an issue just like the one you described. Next change the video card and if this doesn't fix the issue them the problem is most likely with the CPU/Motherboard. If swapping a part fixes it then you no the problem. IMO it's "most likely" a hardware issue but its hard to say till mess around with it a bit.
Quote:
LosAngelesGraff said:
ok i noticed two fans went out. I'm sure its the fans. ill try to replace them.
If your fans are out, that could cause either the CPU or GPU(on video card) to get to hot and burn up. The symptoms also match yours.
Quote:
cokane said:
I had a HDMI cable crap out on me one time, I would try another cable or if your computer has more than 1 video output like a VGA /DVI try plugging into that.
Loud pop makes me think fan in power supply unit, just a guess.
Do you know how to use a multi-meter?
While not impossible, unless he moves it around a lot a cable failure isnt very likely.
Just toy with it a bit and you'll figure it out.
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Sapr0phyt3
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Re: Pc question [Re: koraks]
#15886255 - 03/01/12 02:09 PM (2 months, 27 days ago) |
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Quote:
koraks said:
Are you referring to the 'one beep is good' comment? Because that's actually true. One beep = standard BIOS signal that everything is in order and the system can boot.
Not always true. One short beep, yes. One long beep could mean bad/unseated memory chip.
Just nitpicking here.
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koraks
Registered: 06/02/03
Posts: 16,174
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You caught me  You're right.
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