I ordered a setup in a store and had them assemble the components. They told me they already tested it, but when I got home no image is shown.
AEROCOOL XPREDATOR BLACK
FONTE DE ALIMENTAÇÃO XFX PRO750W CORE EDITION
MOHTERBOARD ASUS P8Z68-V SKT 1155
CPU INTEL 1155 I5 2500K BOX (3,30GHZ)
CPU COOLER SCYTHE MUGEN 2
GSKILL PC3-12800 8GB RIPJAWSX CL9 (2X4GB) DDR3
HDD SAMSUNG 1TB SERIAL ATA II 32MB CACHE
LG GH22NS70 SATA BLACK BULK
Keyboard LOGITECH MEDIA 600 USB
TP-LINK TL-WN781ND PCI EXPRESS ADAPTER WIRELESS
GIGABYTE GEFORCE GTX570 SO 1280MB GDDR5 PCI-E
What I did:
1 - Connected the tower and monitor to the power.
2 - Connected the tower to the monitor using VGA.
3 - Turned on the power switch (tower).
4 - Turned on the monitor and set it to vga, plugged in usb keyboard and usb mouse.
5 - Turned on the tower.
6 - Tower powers up, I hear fans but the monitor shows the image vga no display.