No signal to monitor, even after new graphics card?

Well. My computer sends NO image to my screen. It is an Acer Aspire desktop computer. It has nothing to do with the screen as it does works on other computers.

I have tried:
- Move the jumper (from 1-2 to 2-3)
- Take CMOS battery out for half an hour
- To remove the RAM and then start off and then put it in again.
- Have had my hard drive over in a second computer so that we can also exclude.
- Bought brand new graphics cards, where there is still no video connection.
Have actually tried everything ..

What can it be? Please help ..
27 answers Last reply
More about signal monitor graphics card
  1. try switch your PSU and see if that makes any changes...
  2. I dont have any other PSU's i can change too?
  3. But the funniest part is, many people have said that it was the graphics card.. Well.. it wasnt? What can it be then?

    Motherboard?
  4. U said that "It has nothing to do with the screen as it does works on other computers."
    that's mean u have another computer, right?

    then try switching your current PSU with the other computer that u mentioned before.
    :)
  5. Its a laptop. Dont think it'll match into my desktop? :P
  6. PSU is the power supply, right?

    or am I totally wrong?
  7. fredehan said:
    PSU is the power supply, right?

    or am I totally wrong?


    Yeah.
    Are you getting any different beeps at boot or do you even get a beep?
  8. I dont get any beeps at all.
    Except when i pulled the rams out - there was a constant beep sound.
  9. may i know the other specs?
    ram,cpu,psu,mobo?
  10. Actually i dont know the real spec..

    3GB ram - 2,8Ghz
    intel dual core processer
    The new graphics card is a ASUS EN9800GT
  11. Processor: Intel Pentium Dual Core 2.8GHZ with Nvidia MCP73VE chipset.
    System Memory: 3GB DDRII Memory modules expandable to a maximum of 4GB

    Thats what i found on the internet
  12. hmmm.... it there intragrated graphics on the motherboard? if so see if you get signal from the motherboard.

    there maybe a setting in bios disabling the use of graphic cards.
  13. No, there isnt integrated graphics, because the computer got delivered with a ATI Radeon HD 3650 graphiccard..

    Anyway - i cant get a signal on monitor at all - i cant see the BIOS start.
  14. maybe u might want to try your new card on your friend's computer, just to make sure your card is fine... :)
  15. Dont you think it is fine, when the fan is running on it?
  16. fredehan said:
    Dont you think it is fine, when the fan is running on it?


    we've seen plenty of time fans spinning in a computer but we dont see anything going on.

    Well im starting to guess a bad Motherboard but i wont say it is yet.
  17. mhm.. last time ppl said it was my graphics card.. but i bought new one with still no difference.. But how could i find out if its the motherboard?
  18. fredehan said:
    mhm.. last time ppl said it was my graphics card.. but i bought new one with still no difference.. But how could i find out if its the motherboard?


    Well if you can barrow a friends computer and test the Gpu in that computer. If it's the gpu works in that computer then we know that there something else wrong in your computer.
  19. Done - went to my friend (he lives next to me) and asked if i could borrow his computer for a few minutes.. the graphiccard worked well inthere!
  20. fredehan said:
    Done - went to my friend (he lives next to me) and asked if i could borrow his computer for a few minutes.. the graphiccard worked well inthere!


    Well, this is good news. Just means 1 more thing this working right.

    From what you've done already and just know, I really cant think of anything else other than the Motherboard or the PSU.


    last question, for the Power supply, What brand is it, model number, wattage and (if you remember) how old is it?

    The PSU may just might not be able to give the electricity to the system like it used to if it's old.
  21. I dont know the brand.. but the whole computer was bought in April last year..

    On the PSU its written: DC Output: 250watt (12v = 180watt max)

    Does that help?
  22. And when all the fans are running, dont you think it could deliver enough electricity?
  23. bump..
  24. fredehan said:
    I dont know the brand.. but the whole computer was bought in April last year..

    On the PSU its written: DC Output: 250watt (12v = 180watt max)

    Does that help?


    Well i could be wrong, but i think the PSU doesn't have enough power the GPU. just enough to power the system. this maybe causing all the problems.

    fredehan said:
    bump..


    Sorry i had to leave yea hanging. had some stuff to do.
  25. fredehan said:
    And when all the fans are running, dont you think it could deliver enough electricity?


    The fans use little to almost no power.
    Regardless, find yourself another motherboard imo if you can without a huge expense. The videocard will usually at least make a bios premier even if it is underpowered by the PSU. What are you using for an external power plug to power the card?
  26. There was a free plug i just plugged it in to ^^
  27. bump..,
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