Staring problem in Compaq Presario V6305NR

On pressing start button, laptop starts, but blank screen comes. After every few seconds, it keeps on rebooting, but nothing happens.

I have tried pressing F10 and Esc button on startup, but nothing happens.
Moving finger over multimedia touch buttons causes them to beep.

Few times, it shows the BIOS, but does not detect the hard-drive.
Very rarely, everything works fine and OS boots and works fine (without any sign of problem).

I replaced RAMs, hard-drive and DVD Reader in other laptop and there they worked absolutely fine.

I even tried removing the battery, connecting external monitor, keyboard, but nothing worked.

BIOS version is F.3D.
When opened, CPU fan and heatsink were dustfree.

Product Specs: HP Presario V6305NR, 1.6 GHz AMD Turion™ 64 X2 Dual-Core Mobile Technology TL-50, 1024MB DDR2 System Memory (2 Dimm), NVIDIA GeForce Go 6150 (UMA)

 

You say that the computer doesn't recognize the disks. Have you tried running a check disk from the Bios? I don't know if yours allows you to do that from Bios, but it woth the check.

If the Bios doesn't support this feature, try using a XP Disk and boot the laptop from it and try to go to command prompt from the CD (by cchoosing the first "Repair" option) and run a check disk. If you need a guide on how to do it let me know.

By the way, you can do the same using your computer reapir option by pressing F8 and selecting Windows Vista Repair. Again, if you need more instruction let me know.

 

Hi emedici,

Thanks for the reply.

The problem doesn't seem to be with Hard disk.
The harddisk worked fine, when I used it in other laptop.
I even tried removing the harddisk and booting from CD / USB disk, but nothing happened.

The main problem is the frequent black screens, where not even the BIOS screen comes.
Even F10 and Esc also dont work.
I have to just keep on restarting the laptop (20-30 times), untill it eventually loads BIOS and also detect the harddisk, successfully.

 

The motherboard is fried it seems. One of my friends is having the exact same model and he got it replaced a fortnight back. Also I heard the warranty on the motherboard has been extended by another year. Just check it with HP.

 

Ok. Now it makes sense. As Pranalien says this is a known issue with some hp laptops having problems with the motherboard. I know someone who had the same issue, but he couldn't do anything as he lives out of the US and in my country there is no hp representative that support warranty on hp laptops.

So go for that warranty and have them replace your motherboard.

Good luck! And by the way, next time try using a cooling pad and Undervolt your cpu to keep your laptop temps under controll.