complete black screen - nothing appears on the screen

Reply

Join Date: Jul 2008
Posts: 50
Reputation: shijunair is an unknown quantity at this point 
Solved Threads: 0
shijunair shijunair is offline Offline
Junior Poster in Training

complete black screen - nothing appears on the screen

 
0
  #1
Dec 15th, 2008
hi all,
i am facing a problem with my pc.few days back i changed the RAM in my pc.first it was 512MB and then i replaced it with 1GB .the replacement was because my pc was giving me the same error and it was not starting up.so the hardware person suggested me to buy the new RAM and replace it.but there is a slight difference from the previous error.before when i removed the ram from the slot it was giving a single long beep stating that there is no ram attached. but now it is not giving me that single long beep and when i try to put on my pc it just directly starts without even pressing the power button i.e directly from the main power and then i am not able to put it off nor reset from the power button.
Pls suggest me what to do.where is the problem lying.
Help is greatly appreciated.
thanks in advance.
Reply With Quote Quick reply to this message  
Join Date: Apr 2007
Posts: 1,109
Reputation: cguan_77 has a little shameless behaviour in the past 
Solved Threads: 91
cguan_77's Avatar
cguan_77 cguan_77 is offline Offline
Veteran Poster

Re: complete black screen - nothing appears on the screen

 
0
  #2
Dec 15th, 2008
hi, make sure you know the specs of your computer..when you change RAM make sure that its compatible or supported by your motherboard...for example ddr2 400mhz..etc.. visit your motherboard manufacturer's website and get the specs for your motherboard..
Reply With Quote Quick reply to this message  
Join Date: Jul 2008
Posts: 50
Reputation: shijunair is an unknown quantity at this point 
Solved Threads: 0
shijunair shijunair is offline Offline
Junior Poster in Training

Re: complete black screen - nothing appears on the screen

 
0
  #3
Dec 15th, 2008
thank you for the reply
i have installed ddr2 in the slot which is the same as the previous one bcz i showed the previous RAM to the vendor and asked for the same in 1 GB.when i bought it and installed, the pc was working fine but after a week this problem has arised.
Pls suggest what has to be done.
Reply With Quote Quick reply to this message  
Join Date: Jul 2008
Posts: 50
Reputation: shijunair is an unknown quantity at this point 
Solved Threads: 0
shijunair shijunair is offline Offline
Junior Poster in Training

Re: complete black screen - nothing appears on the screen

 
0
  #4
Dec 16th, 2008
hello everyone
Pls find me a solution for the problem stated above.
Help is highly appreciated

thanks in adavance.
Reply With Quote Quick reply to this message  
Join Date: Apr 2007
Posts: 1,109
Reputation: cguan_77 has a little shameless behaviour in the past 
Solved Threads: 91
cguan_77's Avatar
cguan_77 cguan_77 is offline Offline
Veteran Poster

Re: complete black screen - nothing appears on the screen

 
0
  #5
Dec 16th, 2008
try to installed one card at a time, see which one will work or not. if both will work one at a time but when together it has some problem..then those DDR cards are not compatible to each other..it might be the same DDR2 but the frequency might be different..check it out..
Reply With Quote Quick reply to this message  
Join Date: Jul 2008
Posts: 50
Reputation: shijunair is an unknown quantity at this point 
Solved Threads: 0
shijunair shijunair is offline Offline
Junior Poster in Training

Re: complete black screen - nothing appears on the screen

 
0
  #6
Dec 18th, 2008
I have tried installing one card at a time in different slots but the result is the same.
The frequency is also the same for the ddr2 ram.
Can i try with the cmos battery bcz i changed that also when i changed the ddr2 ram At that time it was giving a message cmos checksum error. How to proceed pls direct me and help me out of this problem. I do not know what i have to do because there is no beep sound,no display,powers on automatically when given power from main power supply without pressing the cabinet power-on button.
Pls reply
thanks in advance.
Reply With Quote Quick reply to this message  
Join Date: Apr 2007
Posts: 1,109
Reputation: cguan_77 has a little shameless behaviour in the past 
Solved Threads: 91
cguan_77's Avatar
cguan_77 cguan_77 is offline Offline
Veteran Poster

Re: complete black screen - nothing appears on the screen

 
0
  #7
Dec 19th, 2008
"I have tried installing one card at a time in different slots but the result is the same..."
Pls. elaborate..does it work one at a time..
DDR1 working or not ---> ?
DDR2 working or not ---> ?
DDR1 + DDR2 working or not ---> ?

have you tried to "Load Default Settings" on BIOS?
Reply With Quote Quick reply to this message  
Join Date: Jul 2008
Posts: 50
Reputation: shijunair is an unknown quantity at this point 
Solved Threads: 0
shijunair shijunair is offline Offline
Junior Poster in Training

Re: complete black screen - nothing appears on the screen

 
0
  #8
Dec 22nd, 2008
hi,
Actually i have been using only ddr2 ram so i tested it out with the new single ddr2 ram on both the slots one at a time.
secondly i do not know how to get the default setting to bios.
Till now what i have done is, i just checked it out with a new working motherboard of my friend which supports processor till
2.6 ghz so i used the new motherboard of gigabyte attaching the old intel processor of 2.2 ghz which i was using.The system started properly,displayed the screen but after few seconds it got shut down automatically . i do not understand where the problem is lying . I have a new motherboard 945 stated above, a new ram of 1 gb and a new smps. so there shouldn't be a problem with either of these . so is it because of the processor that i am facing this problem. if i have replaced a new motherboard for testing should i reset the cmos to get the default settings and if yes then how to do it.
Waiting for your reply.
Pls help .
Thanks in advance.
Reply With Quote Quick reply to this message  
Join Date: Apr 2007
Posts: 1,109
Reputation: cguan_77 has a little shameless behaviour in the past 
Solved Threads: 91
cguan_77's Avatar
cguan_77 cguan_77 is offline Offline
Veteran Poster

Re: complete black screen - nothing appears on the screen

 
0
  #9
Dec 22nd, 2008
Hi, yes it could be overheating...make sure that your heatsink is properly seated to your processor and there's enough thermal compound on it..you can go to BIOS by pressing "Delete" or either F1 or it depends on your BIOS software...normally "del" is the most common one..
to reset the cmos you can take out the cmos batt and put the back cmost batt after 2-3 mins.
Reply With Quote Quick reply to this message  
Reply

This thread is more than three months old.
Perhaps start a new thread instead?
Message:



Similar Threads
Other Threads in the Troubleshooting Dead Machines Forum
Thread Tools Search this Thread



About Us | Contact Us | Advertise | DaniWeb | Acceptable Use Policy | RSS Feed

©2003 - 2009 DaniWeb® LLC