Compaq Presario 6150b wont boot - no BIOS screen - powers on and off repeatedly

Hi, i bought a 6150b from a company auction. Everything worked perfect for the longest time. Then last week i went to go turn it on, and all it does is run the CPU fan for a couple seconds, flash the AC LED about 7 - 8 times, and while thats flashing the power and hard drive LED’s stay solidly lit. Then it completely turns off. This all lasts about 3 seconds at the most. That’s what happens when on battery power.
When on AC power, the same thing happens, except it continues doing the cycle over and over again until I unplug it.
I think it might have something to do with the LCD monitor, since it does not even show a slight flicker at all. No color change like it would from when turned off to a black back lit screen when turning on….simply nothing.
I opened her up (no warranty anyways) and checked all the connections for the keyboard, monitor, DVD drive etc....also reseated them as well, with no luck.
Pulled the both RAM modules and reseated them as well, nothing.
Pulled the battery as well, no change. Still cycles the same over and over again while on AC
There are no audible errors codes (real nice HP...), and im lost at this point.
Any and all suggestions are greatly appreciated.

I just wanted to say thank you form the depths of my heart to say thank you and god bless you carol I know there is prbably more than one carol working customer support but she was my escalation represintative.All my best wishes go out to her and the repair departent for all the help.I cannot say enough good things things about her.first i sent in my pc and it took days to get my box then another 3 before they got ,then they sent it right back without repair i thought it was hopeless.But I got in contact with Carol and now everything is fine my pc is being repaired and ill be getting it on the 23rd.Thank god for the nice people in this world without her help im sure i would be starring at a useless pc.So in the end they did right by me and will definaltely be buyingan hp the next time i buy a pc.Also I cant forget the the peopole who actually fixed it you have no idea how much this means to me this pc is my baby and because of this i will always buy hp products.But whatever you avoid emachines i had an older pc i was trying to get working and they wanted to charge me 59.99 for 30 mins of tech support 129.99 for 90 minutes.Thats just ridicoulus.Anyways i cannot thank Carol and the reapair staff enough for getting me my baby back in such a timely manner.if there is anywhere ican rate her help please moderator send me a survery r something so i can express my gratitude.HP ROCKS

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Compaq Presario CQ61 Wont Boot

So Like Most owners of the Presario, My Computer wont boot. Its a blank screen and the LED blinds towards BIOS Corruption but since I cant even get out the blank screen Any help would be very well indeed Helped. Below is Info and things I've Tried
Computer Type: Compaq Presario CQ61-319WM
Operating System: Windows 7
Warranty: Gone
Bought: 3 Years Ago
What Happened when this all started: I was drawing on photoshop, I closed it so it would go to sleep mode. I left the house for an hour to shop and come back to this blank screen and LED blinking Lights (Twice)
Last Six months had To System Restore Twice, An Update back in March made my computer not work so was forced to system restore.
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I Think Ive gotten everything Down. Should I send it in even though it would be smarter to just buy a new computer? Im at a lost of what can be done . Almost Every person with this problem got fixed by Hard Reset. I dont know how to deal with BIOS. So Please Help If You can.

The troubleshooting steps mentioned in the following weblinks might help you to resolve the issue:
HP Notebook PCs - Use Hard Reset to Resolve Hardware and Software Issues
HP Notebook PCs - Blank Screen LED Error Codes
HP Notebook PCs - Troubleshooting No LED Lights Glow During Startup or Boot
I am an HP employee.
Regards,
Vidya
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Compaq presario cq56 wont boot even to BIOS.

Compaq CQ56 laptop Recently after shutting it down normally I cant boot it up again. The battery and the power adapter are good. The CAPS lock light flashes every 2 seconds. The orange wireless light remains on. The screen is totally black.
What i have tried so far without success:
1. Removed the power cord and the battery and pressed the power button for almost one minute.
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Hello Udinov,
Welcome to the HP Forums, I hope you enjoy your experience! To help you get the most out of the HP Forums I would like to direct your attention to the HP Forums Guide First Time Here? Learn How to Post and More.
I have read your post on how your notebook computer is not able to boot into the BIOS, that the CAPS lock is blinking, and I would be happy to assist you in this matter!
To find out the meaning of the blinking light sequence, I recommend following this document on Computer Does Not Start and the LEDs Blink or the Computer Beeps. This should help determine the cause of the blank screen, as well as the interpretation for the blinking CAP locks light.
Please re-post with the specific blinking-light pattern with the CAP locks light, and I look forward to your reply!
Have a great weekend!
MechPilot
I work on behalf of HP
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H8-1070uk upgrade to gtx 970 wont boot after bios

Hi all,
im after some advice is possible.
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PeterBurns wrote:
Hi all,
im after some advice is possible.
I've got a h8-1070uk which im trying to upgrade the video card on, from gt545 to gtx970. My bios is v7.12 and im running it on a jeantec 800w psu.
the issues i have is that when the new card is installed it gets stuck on boot on the bios screen.
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Hi,
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You need to do an Erase and Install or an Archive and Install depending on whether the hard drive is OK or needs to be reformatted.
Start by booting from your Leopard DVD. The rest is just following directions.
How to Perform an Archive and Install
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1. Be sure to use Disk Utility first to repair the disk before performing the Archive and Install.
Repairing the Hard Drive and Permissions
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Try:
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@Fuschia4me,
1.       You will have to use another computer
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3.       You want to select the F.36 BIOS version
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Please respond back at your earliest convenience.
Thanks
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Compaq Presario CQ71-420SM booting problems

Hi,
i have problem with Compaq Presario CQ71-420SM.
Laptop wont start.
Checked power adapter (green - constant) light is on. Checked on laptop where power adapter enters laptop (white constant) light is on. Changed power adapters. Tried with and without battery inserted same result.
Removed the ram that is left one module than replaced it with second, tryed to change slots with both modules. no result.
Laptop be it on battery or without one but with power plugged in needs about 10 sec to eaven spin cooler/s and promptly shuts down - blank screen all the time.
Now ONLY when battery and power adapter is in i get white led flashes (led located lower left from touchpad - not the one near where i plug in power cord) in following durations:
- = short duration of led light
-- = normal duration of led light
--- = long duration of led light
1) -- -- -- -
2) -- -- -- --
3) -- -- -- ---
than fiew moments pause and all over again
i have read somewhere that this is most likely vga failure now can You please verify this for me or give me valid info on what can it be or what should i look for?
i have looked for error codes on fiew laptops, could not find specialy for this one but this is one of the links
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01443366&lc=en&dlc=en&cc=uk&lang=en&rule=26781&...
the error led codes as i noticed are all the same for links that i have found.
greetigs,
ivan

Hi,
thank You for quick response.
can you tell me what you opinion is if mob has gone bad is it worth the trouble/cost to send laptop to repairs or just buy a new laptop considering that laptop is 3+ years old.
regards

Compaq Presario 6150b wont boot - no BIOS screen - powers on and off repeatedly

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