Dell vostro 1510 laptop wont turn on....power button does not lite up. sometimes screen is grey when I turn it in on. Suggestions?

SOURCE: Update Dell Vostro 1000 BIOS now wont turn on, nothing on display

Hopefully you can find something helpful on this site. Basically you need to flash or reset your bios now. this site also has some links to remove upgrades. LIke i said i hope this helps.

http://www.user-guides.co.uk/Dell/DellManuals/Dell.asp?keywords=Dell+Vostro+Manual&recor=1

SOURCE: I have problem with my vostro 1510 wreless,

The Dell QuickSet utility Wireless options can cause these issues.

There is a setting to always deactivate on battery. Make sure this is not set up. The correct setting would be Always active on battery or Always On, or no power saving options for Wi-Fi. Depending on the version of QuickSet which you have.

It is known to glitch when power is removed from the machine while the wireless is in use.

Please let us know if you have any futher questions. If this information was helpful, please take a moment to rate the solution. Thank you.

SOURCE: dell laptop vostro 1510 flashing 9 on the keyboard

That is an indication of either a Video or an LCD failure. If under warranty, contact Dell Tech Support.
If out of warranty, remove all drives, battery, wireless card memory and see if error indications change. If they do, add a ram module back and see if the system posts. If it does, add items back one at a time until you ID the faulty one.
If there no changes, the the motherboard most likely has failed.
You can run the troubleshooter to see if the tool gives you more detailed information
http://support.dell.com/support/topics/global.aspx/support/dsn/en/tree?c=us&cs=04&l=en&s=bsd&journalid=7AF02DEA4AA96B7BE040AE0AB8E13EBB&treeid=2C485ADAA75B367CE040A68F5B285C4D&Query=bm8rcG9zdCtWb3N0cm8=&SystemID=&ServiceTag=&contenttype=-1&os=-1&component=-1&lang=-1&doclang=en&toggle=false&dl=

SOURCE: dell vostro 1000 laptop power problem.

THEREI S A SHORT CIRCUIT IN LAPTOP REMOVE BATTERY AND TRY

SOURCE: Dell Vostro 1510 Laptop; cant get anything on the screen

Same thing happened to me.
I stumbled on this link and the solution made sense to me.
http://en.community.dell.com/dell-groups/new-to-community/f/3511/t/19323146.aspx

What I did was to nudge in the Hard drive to make sure it wasn't loose and press down slightly on the processor even though it didnt feel loose.

Worked for me. Though I'd help someone else since someone else 's post helped me.