Computer powers on, but does not boot [Solved/Closed]

NOTE: Before making any attempt to remove or replace any part inside the casing, ensure that the power is off.

Well, the first thing that might be causing this is your memory card (RAM). Try to remove it and place it in another memory slot on the motherboard.

To be sure if your motherboard is still in good working condition, remove the memory card and power on the PC.

You should hear continuous beep sounds.

If you hear this then your motherboard is fine.

If placing the memory card in another slot does not work then the problem lies with the memory card itself. You will need to replace it.

It could also be that some faulting PCI cards are causing this error.

Try to remove your PCI cards. Normally a faulting PCI modem causes this type of error. Remove it and then power on the pc.

The processor cannot be faulty but still if you want to check it, remove the CPU Cooler fan. Then turn on the PC.

Place your finger on the processor for 2 seconds. You should find the processor heating up. Then turn it off immediately. If this works then your processor is good.
Remember not to leave it ON for more than 5 secs.

Hi DJ,
I have come across with a problem which i could not sort it out.

When i switch on the power supply,fan is on,cd rom is opening and the hardware light is also on bt my monitor is always in off mode.I couldnt hear any beeps at the start up of the PC which i waz able to hear b4 facing the problem.Am not getting signals to monitor.Tried al the methods tat u mentioned but no improvements.

Monitor waz working fine bt then suddenly it stopped its displaying agenda.Can u suggest me wat shld i do and wat cld hav caused the problem??

The PC turns on, the fans are working, the CR-RM is working but the monitor, the mouse and the keyboard are getting NO SIGNAL. I took the ram stick out, the PC did not beep but it didn't turn on either so I assume is not the ram.

Overall there's no beep at all, no signal and I really don't know what's the problem.

If the mobo was damage it shouldn't turn on at all, right?


Please any good answer for this problem???

No easy solution to your problem. One would need hands on access to the computer. I could be the power supply the motherboard takes different voltages than the fans. The fans on proves nothing about the power supply.

If you can't swap out the power supply (my first option) thne Take it to a repair shop.

Hello Dj Akshay.

I have learned a lot from your posts and am glad you are so attentive to respond to everyone. I read a bit back in the post about someone having a similar problem with an ASUS P5N motherboard but couldn't find the outcome.

My motherboard is an ASUS P5N-E SLI . It has been a wonderful motherboard. Today, with no warning, while trying to turn on the computer: no video output, no beeps, all fans are on, no startup. So, I removed my video card, audio card, memory, and extra case fan. Still no beeps. Motherboard LED is lit, hard drives are working, dvd drive is working. I assume it's not the PSU.

Now, according to you, it's either the motherboard or the CPU. I have a large heatsink on my CPU, no fan. This allows me to feel the metal on the heatsink right on top of the CPU and it does not get warm when I turn it on. So, this means the CPU is bad, right? But, is it not possible that damage to the motherboard is preventing power from reaching the CPU? Let me know, please. Then I can decide whether to buy a new CPU or a new Motherboard.

Oh, I haven't tried replacing the battery on the motherboard. Can this still be a possible problem?

Thank you for your help.

try replacing your bios battery it's about the size of a quarter 3.0v battery

Hmm....maybe I can get my answer here?????
BTW sorry for your loss, DJ.

Here is my problem.

I bought a new MB and Processor:
Intel Core 2 Duo E7200 Wolfdale 2.53GHz LGA 775 65W Dual-Core Processor Model BX80571E7200
GIGABYTE GA-EP35-DS3L LGA 775 Intel P35 ATX Intel Motherboard

Now, the problem is that I cant even get the thing to stay on. I turn the power on and after a moment it just shuts down. The lights and fans come on and then shut off. It's completely barebones and the power supply does work(I'm using it right now and I tested it.) The case also isn't faulty since I'm also currently using that without issue.

The computer doesn't overheat because it doesnt stay on long enough, not even a second.

I have narrowed it down to just these 2 but I have no way to test either of them since nobody I know has a similar socket.

I've also tried cleaning off the thermal compound and reapplying, to no success.

So in short.....help???????

Hi Dj Ask i hope you really read my message..Well my problem is this.. i was using my computer normal...turned it off . went for a drive then came back i trieed to turn my computer but it woudlnt even turn on or anything i though it had to do something with the plug so i disconnected. then connected it again,when i did that it turned on for about 3 secs,the fan was spinning the PSU was running normal and the motherboard after 3 seconds the fan stopped and the green light inside just was kept on,..i dissconnected everything and tried again but no luck i been wondering where i can get help but none shows help..im not sure of my computer name or model im not that good with the stuff...thank you guys for anyreply

Same problem as above, comp starts up windows screen flashes up and then blanks out, mouse and keyboard lose power. However when I unplug keyboard and mouse from USB slots and plug them back in, PC continues start-up fine....
Any suggestions?

Although not a member of this forum, I booted my cpu and experienced the same issue. Even using a system restore disc I made did not work. I removed all 3 ram modules, clean them with the eraser and on my next attempted startup - my cpu worked perfectly. Amazing. While I was in the CPU, I cleaned everything. THanks for the tip.

Hey, I just had the problem as well, not sure what happened......I came home from work, turned on the comp, looked fine, went to jump in the shower, came back and it seemed my comp was stuck in hibernation, so i turned it off, and got the same problem. The lights would come on, all the fans would start running, but it would stay black on my monitor and I heard no beeps/boot. I got on another comp in the house and started forum searching and halfway found my answer.....
Now this problably has been said already, but I havent had the time to read through all the posts, but it turns out that when I removed my PCIe video card, and plugged my monitor up to the onboard card on my mobo, the computer started up fine! So I cleaned the PCIe card and tried to put it back in and start up the comp again, only to have the black screen, no boot thing happen again, but this time I noticed the fan on the card was trying to spin, but couldnt, kept getting stuck. Tried cleaning it more to no avail...
So my conclusion is either the card/fan itself is dead, or my PCIe slot on my mobo is dead, but w/o it in the slot my computer runs just like it did, I'll have to find out the issue when I have more time. Hope this helps

Here is my situation. I have a HP Pavillion 1473w. Recently I went to use it and the mouse wasn't working. I thought the batteries but noticed the reciever lights were not on. I shut it down and it wouldn't come back up. I get a black screen. The fans come on and I hear the dvd drive and can open the drive. The motherboard is an ECS RC410-M.

Other things that I have checked

Monitor works on another computer so I ruled out the cable and monitor (swapped cables also)

I tried resetting the bios via hp recommendation of remove power cable and holding button in for 5 seconds.

I also tried removing the power cord, moving the jumper over, pressed the button 2-3 times, move the jumper back and no change.

I've removed the modem card which was not in use and tried adding a working video card. No change. Everything is built in so there are no cards hook in right now.

I removed the cpu fan and started it for a couple of seconds and felt the cpu heating.

I jumped the 24 pin connector on the board and the powersupply fan worked. Also the light on the power supply is on.

I tested the 4 pin motherboard connector, all the molex connector and jumped the 24 pin connector and tested all except black, gray don't recall a brown using a voltmeter and everything was reading at 3.3, 5 or 12

I have 2 memory cards both were swapped, used individually in both, and I used an eraser on the gold pins, no change.

I removed the memory cards and powered on but didn't hear any beeps. I see the speaker on the board and assume it is working.

I have also removed the battery and tested it on a voltmeter to see that it worked. I believe the reading was around 3

My guess is the board is bad. One bit of info that I don't understand is the switch on the front of the case is a circle and it turns blue, there is also a orange light. When I push in the switch the light flashes blue but then goes out. I believe normally it would turn blue and stay on until you shut off the pc. I'm not 100% sure that it worked like that normally but am pretty sure. I ask as I don't know if that could indicate anything or if a faulty switch could cause problems like mine.

If the board is the problem, I had planned on ordering the ECS RC410-M board online since it was the same board. Am I correct that since the board is the same that I shouldn't have any issue with booting up? There isn't a windows xp disc but I have the 2 dvds that were burned when I bought the pc new.

Any ideas or other things I should test for? I don't want to order a board is that is not the problem.

Hi All

I check all the steps you guys are talking about ,(Memory,VHA,CPU) but I still can not make my computer to boot up.

Also, when I move the jumper to clear CMOS settings,it wont turn on at all. so the jumper only work in NORMAL but not on CLEAR.

by the way , I have change the FAN because it was making a lot of noice, now its not the same FAN but its little bit bigger,it works fine .

can you guys tell me how do I reset the CMOS settings if jumper dosent work???

Hi DJ, i own a Lenovo Y310A laptop, and i encountered a problem whilst playing CSS and my screen turns purple and the laptop freezes, i suspect that there is something wrong with the resolution; i was unable to task manager my way outta the game so i had to manually restart the laptop, and after this the laptop wouldn't boot, all it did was just show a grey screen with multi-toned stripes running down the moniter, it HAD allowed me to boot into the laptop once or twice, but after several occasions, it just completely failed, not even Lenovo's "OneKey" recovery system works. Please help me as i have some urgent uni work to complete asap

Hello DJ.

I have tired all of your steps for trying to get the computer to boot with zero luck. I just recent bought a brand new power supply installed it because the PSU that was in it wasnt enough for my Video card. I have Gateway DX4200-09 AMD Athlon Phenom Quad Core with a Nvidia 8400 GS Card. The PSU that was in the pc was 300 watt. the one i purchased was 450w. Id it possible when i installed the new PSU it may have messed something up? All connections works. I just cant get it to boot. This comp isnt even a week old either heh :(

Any help would be greatly appreciated.

So DJakshay, I need to reset the BIOS with the jumper? Just taking out the battery won't do it?

Hi im having the same problem with my PC. I turn it on and it won't recongize the moitor, the screens just blank and the monitor led is orange. Ive tried removing the ram and powering on the pc, and i do get the beeping noise. Ive tried switching out video cars and that didnt work, ive tried removing the video card and using the on oard video adapter and that didnt work. Also ive swapped the two different sticks of ram with eachother, still nothing, i tried my old ram that was still working when i removed it and that didnt work. i dont have one of those ereasers you talked about so i cant try that. and my power supply displays the correct voltage with a volt meter. Is thee anything else i can do to fix this problem? please help!

Hi All,

I have similar problem with my PC.As you advised,I tried to start my PC by removing RAM ,sometimes I got beep sound but also sometimes I didn't get any beep sound then my CPU fan was also stopped.Thats why I found that sometimes my PC running successfully and sometimes its tottaly in stoped condition only green light in front of CPU is glowing.Can you please help me out from that problem.Even I replaced my SMPS and RAM then also I found same response.Sometimes it starts successfully then automatically takes restart and sometimes its doesn't give any response.Plz Plz help me out...............

Thanks,
Subham

hey guys i need urgent help please. I was browsing the net when a blue screen error came up on my screen and i had to restart my laptop. while restarting it got stuck somewhere in the boot process. i left it for 15 min nothing happened so i turned it off and tried to turn it back on but now the screen is blank and doesn't turn on, but the fans turn on and the lights on the keyboard turn on. I've tried plugging it to another external screen to see if the problem is from the screen but it shows no signal. so i believe the screen must be okay. how can i solve this problem? i have HP pavilion laptop, any help would be appreciated! thanks in advance!

Hello,
I am having a similar problem. The computer doesn't seem to boot up. Lights come on, fans run, but no light on the mouse (usb) and monitor says "power saving mode." The lights on the keyboard do come on though. I did the CMOS reset. No success. I removed the RAM and got the repeated beeping. While it was out I tried the eraser trick, but still no luck. When I tested to see if the processor warmed up, it took about 15 seconds to turn luke warm (without the heat sink). I tried this on another computer and it got too hot to touch within about 3 seconds. I wasn't sure if this indicated a CPU problem or if there just wasn't too much to process since it wasn't booting so it didn't heat up.

One other major suspect here... About 3 months ago I replace the video card when the old one started messing up. It performed well all that time. I tried removing the card (I didn't have another to replace it with so I just left the AGP slot empty) and the computer acted the same way. I'm not sure if a computer can boot without a video card, but it didn't seem to make any difference.

Thanks in Advance

Jesse