power save

[MRA25]

I have assembled a pc for myself with mobo asrock.
880gmh/u3s3 weith onboard video ati radeon 4250.
processor amd fx 4100 4-core 3600mhz
ram kingston ddr3hyperx 4gb 1600mhz
i have also 2 ide hdd and 1 sata hdd attached. and psu of 300 w.
when i turn the pc on i get no beeps and on my monitor the following message : no signal, no input or power save?
Do you what the problem is. is psu too low as i do not connected a 12v atx 4pin to the mobo.
please can you help?

 

[ShintaiDK]

You need the 4pin CPU connector to the motherboard.

 

[MRA25]

Yes, I bought a antec 380 w psu.It is now working.I can get to the Bios, but cannot detect hdd and DVR. Ide hdd is detected. Bios version is 1.70. How can i setup the storage configuration to detect sata hdd and sata dvd rewriter.?
Thanks for your help.