06-15-2009 08:25 PM
06-17-2009 01:00 AM
When you purchase upgrade RAM for an HP PC there is something important that you should know.
If you want the RAM to work on initial installation, you have to purchase guaranteed compatible RAM from a major memory manufacturer (i.e. Corsair , Kingston and a few others). The manufacturers that I listed have memory configuration tools at their website that will help you purchase the proper RAM that will work in your PC. If you just go out and buy "just any RAM sticks" you are taking a big chance, since the RAM probably will not, as you have found out, work. HP BIOSes do not give consumers the ability to adjust the primary and secondary timings of the RAM to allow it to work. That is a choice that HP made to protect novice users from themselves. That is my own opinion.
Incompatible RAM installed in a PC will not allow a PC to boot because the BIOS checks to see if it sees RAM that matches its tables as part of the boot process. If your PC's BIOS sees incompatible RAM it will either not allow the system to start or begin a startup and shutdown loop that will drive you nuts.
06-17-2009 05:12 PM - edited 06-17-2009 05:22 PM
You can't really "erase" memory modules. It is possible to damage them with static electricity discharge, but that is not something that happens often.
From your description of the problem it would seem a good option to clear the CMOS. The link goes to your moterboard specs.look at the last item on the motherboard specifications page. For you pc's motherboard the procedure is really simple. Unplug the power cord. Remove the CMOS battery. Depress the power button for 10 seconds. Replace the battery, close the case, plug in power and attempt a start of your system.
Please post your results here.
06-18-2009 10:19 AM
The switch is just a normally open contact. Don't think it was defective. You could do the same by shorting out the two power pins on the motherboard to start the PC.
I'd reseat all connectors in the PC. Use only the original RAM. Disconnect the hard drive. Pull the power plug and CMOS battery on the motherboard for one day. Connect only the mouse, keyboard, and monitor to PC. If you cannot boot into the BIOS screen, then the power supply may be bad.
06-18-2009 11:27 AM
Try starting it with a single stick of RAM. Try each slot. Afterwards go to the isilaotion process. But try the single stick method first.
06-18-2009 03:49 PM
06-19-2009 05:13 PM
Switched slots, no change. What were you saying about the installation? process?? Trying the other suggestion of disconnecting everything and let it sit overnight. Let ya'll know how it goes tomorrow
The "installation" was a reference to the ( first time) initial installation of the new memory modules. I described why guaranteed compatible memory modules would work and non-guaranteed compatible memory modules likely not to work in your PC at all.