No signal on monitor, keyboard is powered.

Jetse Jacobi

Honorable
May 16, 2013
4
0
10,510
Hello everyone,

I just bought a new computer, connected everything properly (I think).
When attaching the monitor, I get the message: No signal.
When attaching this monitor to my laptop, everything works.
There is no OS on my computer yet, but I expect the bios to start...
On startup I don't hear any beeps.
At the moment 1 use one DDR3 ram of 2gb in the first slot, I have another one available, but first want the computer to work).
On my motherboard I don't see any lights burning.
Computer specification:
- Motherboard: Asrock FM2A75 PRO4-M
- Power supply: Corsair CX430M
- Processor: AMD Athlon II X4 750k
- SSD: Samsung 120GB SSD 840
- DDR3 memory 2gb: Corsair CMV4GX3M2A1333C9
- Video card: Sapphire Radeon HD 7850 1GB GDDR5
- Computer case: Cooler Master Force 500
- Monitor: Acer 193WLAOb


This is the first time I build my own computer so I may have made a mistake somewhere.
Given this information, which items work properly, and which ones I may have attached wrong? Are there any other tests so I can figure out which Items are working correctly?

[EDIT]

Tried to put everything off, except ram and cpu, I got 5 long beeps. According to manual there is no vga input. Inserting my videocard, still 5 long beeps, feeding the videocard: no bios and no beeps...
So I am afraid it is my power than...
 
Solution
A quick check and found ....your video card Minimum of a 500 Watt power supply required.
That is your answer, you have a power supply that is simply not powerful enough.

My suggestion is get at least a 750 Watts power supply so that you can run other components as well.
A 500 power supply might NOT work at all given that it also needs to supply power to the rest of your build.
Disconnect everything from the motherboard except one stick of RAM, PSU and video (if there is onboard video as well, use that one and remove the discrete card). Make sure the PSU is properly connected to the motherboard with all the plugs needed, clear the CMOS and reboot. You should have access to BIOS now.
 

drwho1

Distinguished
Jan 10, 2010
1,272
0
19,310
A quick check and found ....your video card Minimum of a 500 Watt power supply required.
That is your answer, you have a power supply that is simply not powerful enough.

My suggestion is get at least a 750 Watts power supply so that you can run other components as well.
A 500 power supply might NOT work at all given that it also needs to supply power to the rest of your build.
 
Solution