i got 350 watt power suplly was installed to motherboard Z68AP-D3,with intel i5 2500k processor,with 16GB kingston hyper momery,and also 1TB HDD,and DVD bruner. when i power up,the system is NO power at all.
Can you tell me ? what's wrong ?
More about :350 watt power supply good intel cpu processor
Memory usually doesn't prevent a system from powering up. What do you mean by no power at all? Do you at least get standby power? Are you absolutely sure that the power supply is good? Have you tested it in another system? Disconnect everything and keep the minimum components (CPU and only one memory module). You didn't list what video card you use, but it has to be a low-power card with a 350W PSU. Did it power up when tested outside of the case (presuming that you did that before inserting everything in the case)?
What is the make/model of the PSU? Here is a troubleshooting guide for boot-no-video issues....work through this guide and let us know after you've tried everything. It could be a number of things...bad connections, CPU, PSU, mobo, RAM.