Dell Optiplex 740 fails to load Linux Lite

[Norm]

Tried to install from USB stick to my old Dell Optiplex 740 which is currently running Windows 7. I get the initial LL feather and automatic boot in #seconds then it faults to 'Not enough memory to load specified image' which then gets stuck in a loop of the same thing until I Ctrl alt del.

I have used the pen drive succesfully on another computer.

Can anyone point me in the right direction please?

Note: unfamiliar with linux



AMD Athlon 64x2 Dual Core Processor 4400+ 2.30 Ghz
Ram 4.00 GB
64 bit