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What will I do if the Computer is on but the monitor is black...and the led of the monitor is orange....I'm sure that the problem is in the mohterboard because I tested it with a video card and internal vga still the is shows black screen....What will I do....

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Several good points were raised already by , and (power, beep codes, RAM). The thread lacks a compact, non-repetitive isolation plan and a few practical checks that often find the root cause in cases like this.

Start with the monitor and signal path: confirm the monitor’s input selector and try another cable or adapter type (VGA/DVI/HDMI). A quick smartphone-camera check can reveal a very faint image if the backlight is dead. If the monitor’s on-screen menu appears even with an orange LED, the display electronics are powered but not receiving a sync signal.

Do a careful visual and mechanical inspection with mains unplugged: look for bulging/leaking capacitors, scorch marks, loose heatsinks, or a dislodged CPU cooler. Ensure the motherboard is mounted on standoffs and not shorting to the case — contact points against the tray can allow fans to spin while preventing POST. A bench test with the board on a non-conductive surface (instructions in the manual) often separates case/short issues from board failures.

Use board-level diagnostics before assuming a motherboard fault: consult any onboard POST/Q-code LEDs, attach a system speaker to the front-panel header for audible beeps (many boards ship without one), and try a CMOS clear (battery out or clear-jumper per manual) to restore defaults. If comfortable and experienced, verify basic PSU rails with a multimeter (+12V, +5V, +3.3V and +5VSB — expect roughly ±5% tolerance) while taking mains safety precautions; otherwise this is best left to a service bench.

If all diagnostic signs point to no POST and no diagnostic codes, the fault is likely chipset/BIOS/VRM level and requires professional board-level testing or manufacturer RMA. Document fan behavior, LED states and any beep pattern — that information shortens time-to-fix for a technician.

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Member Avatar for caperjack

take it to a computer repair shop!for quick results ,It maybe the motherboard,or the Ram, or the CPU,
also if you have another power supply try it as sometimes power supplies will fail but have enough power to turn on the fans

Member Avatar for nisha_ahuja

As I Am Getting From The Problem!
Actually There Is A Problem In Your Power Transmission..
Because As You Are Telling The Way Of Getting The Black Screen On Monitor So There Should A Need To Take Care Of Power Supply In Your Pc.
According To Me There Is No Problem In Your Motherboard And Stop Blaming It For The Same Issue. Ok!!!

Actually It Is Because Of Your Idse Chip That Enables A Complication Flow Of Current In SMPS To Motherboard Thats Why You Have Been Strucked Of This Error!

Ok If Problem Got Solved Post Me A Reply.
Till Then Take Care..
BYE

commented: Nice Really Good Post I Hope One Day You Will Be Grown Up! +1
Member Avatar for caperjack

According To Me There Is No Problem In Your Motherboard And Stop Blaming It For The Same Issue. Ok!!!

Your English is getting very good ,but Blunt ,many issues could be causing the problem ,and power and maybe even a dirty CPU Fan ,many thing ,don't be so sure !

Member Avatar for nisha_ahuja

As I Said I Am Sure About It It Means I AM Sure Because The Same Problem Had Happened With Me Several Times So There Is No Need Of Being Worry And As You Said Of Dear Dirty CPU Fan Can Only Just Flick Your MONITOR For Few Seconds Ok It Cant Just Change Over The Flow Circuit..
So According To You, You Want To Say That The GSS Id Section Of The Motherboard Got Affected Due To Just Dust Particles.. Its A Kidding Joke!
You Cant Say That The Polymer Capacitors Can Only Damage GSS Circuits And The Gp Id Section Odf The Pin Connectors Can Hide It So I Think There Is No Need To Spend Money On Visiting To Shop For Reparing The PC And If It Is So Then Why This DANIWEB is All About So Just Have A Think On It...
ANd Thanx For Appreciating My English.

Member Avatar for caperjack

As I Said I Am Sure About It It Means I AM Sure Because The Same Problem Had Happened With Me Several Times So There Is No Need Of Being Worry And As You Said Of Dear Dirty CPU Fan Can Only Just Flick Your MONITOR For Few Seconds Ok It Cant Just Change Over The Flow Circuit..
So According To You, You Want To Say That The GSS Id Section Of The Motherboard Got Affected Due To Just Dust Particles.. Its A Kidding Joke!
You Cant Say That The Polymer Capacitors Can Only Damage GSS Circuits And The Gp Id Section Odf The Pin Connectors Can Hide It So I Think There Is No Need To Spend Money On Visiting To Shop For Reparing The PC And If It Is So Then Why This DANIWEB is All About So Just Have A Think On It...
ANd Thanx For Appreciating My English.

yeah,ok

Member Avatar for acejames1

get off the bickering you 2 first things first get a power supply tester first test the power supply then reply back with information if it is the power supply you should easily be able to find out .

Member Avatar for sittas87

What will I do if the Computer is on but the monitor is black...and the led of the monitor is orange....I'm sure that the problem is in the mohterboard because I tested it with a video card and internal vga still the is shows black screen....What will I do....

If you can tell me what happened before the problem started,then Id be able to help you

Member Avatar for Trionztek

DO you get any beeps when the systems starts? A single beep means the system is ok. If you have any other beep code or no beeps it indicates a problem.

What you can do is try and remove the RAM and reinstall it in its socket and then boot the PC. If this doesn't help, try with a known working RAM module. If still you have no luck, you need to try with a known working power supply. In case you do both these things and still no luck, take it to a professional to get the PC tested as it might indicate a probable motherboard problem.

And do test the monitor on another PC if you do get a single beep and yet no display. This indicates that its a monitor problem and you need to get it fixed.

Post your results here.

Good luck!

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