How to install window 7 64 bit my optilex gx620

SOURCE: reinstall windows xp pro

Ok firstly, you will need to get rid of Vista all together before you can Install XP, Use a partition program to do this, You can find a bunch just by typing partition software into google, Delete the main partition that windows is on, Then create a new partition, then format that partition as a Primary partition, I always use the NTFS format just for stability and it can handle larger files than a 32 Bit partition, when you have done that then you need to get a bootable windows xp and I think you have that if set up is starting but hanging. Just go through the windows setup and you will be done. BE AWARE that you will loose everything thats on the drive by doing this so backup what you want to keep before you start, Always an idea to get the XP drivers for the system as well, The Vista drivers WILL NOT work on an XP system

Hope that helps.

If you run into problems then let me know and I will help you with it

SOURCE: Dell Optiplex GX620 PC is failing to power up

You may have a failed motherboard then. Failure of motherboards is usually due to breaking capacitors. A few years ago a capacitor company stole the "recipe" for making capacitors from another company and tried to make their own, unfortunately they did not get the ingredients right and the capacitors started breaking after 2-3 years of use. They sold these capacitors at very cheap prices and a lot of computer companies and power supply makers bought them. This is easy to diagnose. Look for capacitors (caps) (they look like little tiny soda cans) on your motherboard (mobo). They should be perfectly flat on top and not bulged or swelling or leaking anything. Make sure you look at all of them, on DELL's especially look under the cooling fan shroud as well. The dead giveaway is the fact that you are not getting anything after you changed the PSU. There are a few companies that will repair broken capacitor issues. Also if you add a bunch of extra components without upgrading the power supply you can suffer underpowered situations and that can cause internal parts to fail.
To eliminate some other stuff you could remove the memory and disconnect all the power plugs from the drives and then try to start it up. If it does not change the behavior at all (no beeps, no change in flashing lights) then you probably have motherboard issues. Make sure when disconnecting the memory chips (sticks) that you touch the metal on the inside of the case first to discharge static electricity. If it does change the behavior add 1 component or item back at a time to see what you can find out. Post back with what you find. And remember a bad PSU does not mean no power, just not enough to run the computer. Is the PSU that you replaced the same or greater output watts?

SOURCE: Hi MY Dell OptiPlex GX620 have a hardware

try the bios settings is your monitor in a grafics card slot
also see if plug and play is enabled only use a keybard and mouse with a ps2 conection not usb

SOURCE: Windows 7 drivers for Optiplex GX620

for drivers u visit driversdownload.com, register and then dowload required drivers for ur comp. i doubt ur computer is affected with virus. pls check it also

Marvin

• 85242 Answers
• Posted on Jan 04, 2011

SOURCE: Dell Opitplex GX620 - "System

If you pull the side access cover off the computer tower, look inside and you will see a large circuit board, that is the Motherboard, on that board you will see a button sized silver battery, this is the battery backup for the "CMOS", and keeps the time and other memory functions alive. Carefully pry out the old battery and replace it with a new one, any Radio Shack or electroinics supply will have the battery. The battery number is on the battery. Make sure to install the battery exactly as it came out, it has a positive and negative side, write it down.

Testimonial: "I thought is might be the internal battery, i just wanted to check it out before cracking it open."