Help no input signal!

TierBlundell · 29 Apr 2010 at 18:46

Hi I had a friend put a pc together i'd bought but when I plug the monitor in I get no signal iv tried another monitor and it's the same, is it because I don't have the drivers for the motherboard and no operating system either??? urgent advice appreciated.

cmndr_andi · 29 Apr 2010 at 18:49

Even with no drivers the BIOS screen will display on the screen.

When you press the power button do the fans spin and lights illuminate on the motherboard and case?

TierBlundell · 29 Apr 2010 at 18:57

yes fans lights DVD drive opens when I had a pc a long time ago I remember the little blue monitor slot fitting into a seperate adapter that fitted on the back of the pc could I need one of those?

UKDTweak · 29 Apr 2010 at 18:59

Is the VGA card onboard or PCI/AGP?
Does it have both and are you plugging the monitor inot the correct one?

cmndr_andi · 29 Apr 2010 at 19:06

If you are using a discrete graphics card, is the PCIe power cable(s) connected to it from the PSU?

Would you be able to post up a few photos of the motherboard connections so we can ensure that all the connections are correct?

Also, were stand-offs used to mount the motherboard to the case and were any excess ones removed?

Finally, can you post up a full spec of your new system so we know what you are working with?

Orcvader · 29 Apr 2010 at 19:11

If the sytem has a discrete card, and a VGA port on the motherboard, make sure the screen is connected to the GPU instead, as the motherboard port will be disabled.

TierBlundell · 29 Apr 2010 at 19:13

I can do the photos tommorow I don't really know what he did it's a biostar 78oa or sumin motherboard with an amd dual core 3ghz ati radeon 5770 1gb 4gb ram 600wat psu 640gb hardrive the small blue port is the only thing the monitor fits in there is a bigger White version and two red versions on the graphics card

TierBlundell · 29 Apr 2010 at 19:18

gpu??? the only slot that fits is where the motherboard is if gpu is graphics card the slots are slightly bigger and thus the monitor won't fit appreciate your help guys

cmndr_andi · 29 Apr 2010 at 19:18

Can I just confirm:

- You have a VGA monitor
- There are no VGA connections on the graphics card
- You connected the monitor cable to the VGA connection on the motherboard

Is this accurate?

xJcBx · 29 Apr 2010 at 19:18

Try plugging it into the Mobo graphics port and turn on, and if you have a 2nd screen put one on each and restart. He may have accidentally set the to the wrong primary/secondary settings.

TierBlundell · 29 Apr 2010 at 19:20

err there are two ports on the gfx card but they are slightly longer than the monitor cable

xJcBx · 29 Apr 2010 at 19:22

Have you pluged you monitor directly into the graphics card or the built in graphics port on the motherboard?

TierBlundell · 29 Apr 2010 at 19:23

motherboard

TierBlundell · 29 Apr 2010 at 19:24

monitor says no input status then goes on standby

xJcBx · 29 Apr 2010 at 19:25

Is it possible to plug your current monitor into your graphics card? Your friend has probably set that to the #1 output for displays.

cmndr_andi · 29 Apr 2010 at 19:26

GPU = Graphics Processing unit. GPU is used as shorthand for Graphics card as it is much faster to type.

If you can't connect the monitor to the graphics card (is the cable too short?) then do this:

-Turn off the PC
- Remove the graphics card power connection
- Remove teh graphics card from the PCIe slot (there may be a little plastic tab on the slot you have to press down to release it)
- Store the graphics card (GPU) somewhere safe
- Connect the VGA cable to the port on the motherboard
- Try turning on the PC on again.

The reason that there is no monitor signal is because the motherboard thinks that the display signal will be required from the graphics card it detects is plugged in -so it disables the basic GPU that is on the motherboard (hence you get no picture). To get picture you either need to get a DVI to VGA adapter (hopefully should have come with the graphics card - or can be bought from an electronics shop) and plug in the monitor to the GPU through this, or remove the graphics card (temporarily until you can get one of these adapters) and make use of the motherboard GPU.

Make sense?

TierBlundell · 29 Apr 2010 at 19:27

no because it won't fit the slots on the gfx are two big I need to go out now but I'm going to ask a friend if he has an adapter to try that will make it fit and il be back on at half ten, thanks

TierBlundell · 29 Apr 2010 at 19:27

il also try that l8r

xJcBx · 29 Apr 2010 at 19:28

cmndr_andi said:
GPU = Graphics Processing unit. GPU is used as shorthand for Graphics card as it is much faster to type.

If you can't connect the monitor to the graphics card (is the cable too short?) then do this:

-Turn off the PC
- Remove the graphics card power connection
- Remove teh graphics card from the PCIe slot (there may be a little plastic tab on the slot you have to press down to release it)
- Store the graphics card (GPU) somewhere safe
- Connect the VGA cable to the port on the motherboard
- Try turning on the PC on again.

What he said.. Before me >. >

Edit: I think he means he has the wrong cable type not length, as in the connector is the wrong size to fit into the hole (lol).

TierBlundell · 30 Apr 2010 at 00:00

no tried the adapter it obviously dosnt and won't work it's useless I mite as well sell the parts on eBay and stick with the xbox. thanks anyway.