New PSU giving some issues

[kkerswell]

I've recently upgraded my PSU but two things are happening that didn't before.

Previously, my PC always came on when I switch the power on by the plug socket. Now however, it comes on for a few seconds, switches off for a couple of seconds and then comes back on and loads up normally.

Secondly, when I shut down my PC the fans on the PSU, GPU and Processor all continue to spin until I either switch of by the plug socket or the power button on the front of the PC.

 

[kkerswell]

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System Information
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Time of this report: 3/24/2012, 09:32:54
Operating System: Windows 7 Ultimate 32-bit (6.1, Build 7601) Service Pack 1 (7601.win7sp1_gdr.111118-2330)
Language: English (Regional Setting: English)
System Manufacturer: INTEL_
System Model: DG33BU__
BIOS: Default System BIOS
Processor: Intel(R) Core(TM)2 Duo CPU E4600 @ 2.40GHz (2 CPUs), ~2.4GHz
Memory: 8192MB RAM
Available OS Memory: 3322MB RAM
Page File: 1973MB used, 4670MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 11
DX Setup Parameters: Not found
User DPI Setting: Using System DPI
System DPI Setting: 96 DPI (100 percent)
DWM DPI Scaling: Disabled
DxDiag Version: 6.01.7601.17514 32bit Unicode