Member Avatar for you_i123

Hey guys,
I just finished assembling my new pc but when i powered it on my monitor says "No Signal". any suggestions? My cpu fan is running my video card fan is running and my powersupply is on. these are my components.

Case: Rosewell http://www.newegg.com/Product/Product.aspx?Item=N82E16811147037

Motherboard Gigabyte http://www.newegg.com/Product/Product.aspx?Item=N82E16813128373

CPU AMD tolimon Phenom X3 http://www.newegg.com/Product/Product.aspx?Item=N82E16819103295

GPU Sap[hire Radeon 4830 http://www.newegg.com/Product/Product.aspx?Item=N82E16814102803

PSU Raidermax http://www.newegg.com/Product/Product.aspx?Item=N82E16817152035

RAM OCZ http://www.newegg.com/Product/Product.aspx?Item=N82E16820227267

Harddrive Samsung http://www.newegg.com/Product/Product.aspx?Item=N82E16822152102

Trying to get Windows Vista 64 bit installed

Thank you

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  • 6 Months Discussion Span
  • Latest Post Latest Post by caperjack

Dani AI

Generated

A compact, ordered checklist that extends the quick pointers from , , and . Run these steps in order to isolate whether the fault is PSU/motherboard/CPU/GPU/memory or a short caused by the case, then record the exact symptom (beep pattern, LED code, fans only, etc.).

  • Attach a speaker or read the motherboard POST/LED codes (consult the manual). POST signals narrow the fault much faster than guessing components.
  • Bench the board: remove it from the case and set it on an insulating surface. Boot with only CPU + cooler, one RAM stick in the recommended slot, and the graphics card if the board needs one for video. This rules out standoff/case shorts.
  • Clear CMOS (jumper or battery) to return BIOS settings to defaults before further testing.
  • Test PSU rails with a PSU tester or multimeter under light load; a spinning fan alone doesn’t guarantee stable 12V/5V rails. If possible, swap a known-good PSU.
  • Inspect the CPU socket and cooler: look for bent pins, correct orientation, and even cooler mounting torque. A marginal seating or damaged pin can prevent POST without obvious signs.
  • Reseat the GPU, try another PCIe slot or a different (known-good) GPU, and confirm any required PCIe power leads are fully connected.
  • Test memory one stick at a time (each stick in the primary slot). If any stick allows POST, run a bootable memtest to confirm stability.
  • If nothing posts, check the motherboard CPU-support list—some CPU/motherboard combos need a BIOS update to work.

Useful diagnostics to note in follow-ups: exact motherboard model and BIOS version, speaker/beep pattern or POST LED state, PSU make/wattage, which slot and cable types used, and the results of a PSU or memory swap.

Recommended Answers

All 7 Replies

Member Avatar for caperjack

you dont mention the monitor being used and how its connected dvi oe maybe a dvi to vga adapter perhaps

Member Avatar for cguan_77

after power on...check if the caps lock is responding..if you turn it on or off. and it's responding...then it's your video is having trouble..

if not responding...then double check your connections you might miss out something...

make sure your processor is properly seated...

basic things..are most often looked out...

Member Avatar for ithelp

Check the pins where you connect your monitor cable to CPU with a tester or voltmeter.

Member Avatar for thepastimer

It could even be something simple like the power connector for the cpu being unconnected.

Member Avatar for you_i123

one of the ram sticks was defective

Member Avatar for titch123

hey am try the same things guys but still get no signal on monitor.
do you think it could be my graphic card
it blew my other monitor thats why i am having this problem plus its a smaller monitor .i thought it was out of sink 2 big a picture?????????????????????????????????????????/help

Member Avatar for caperjack

hey am try the same things guys but still get no signal on monitor.
do you think it could be my graphic card
it blew my other monitor thats why i am having this problem plus its a smaller monitor .i thought it was out of sink 2 big a picture?????????????????????????????????????????/help

yes it could be video, but are you sure its a working monitor,also how did you blow the other one !

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