PC Wont open!!!!

[th3r0ck]

here is my current spec
System Manufacturer/Model Number Self Built Clone PC.... this January
OS Windows 7 Ultimate x32
CPU Intel Pentium Dual Core E5300 2.6[3.25] Ghz
Motherboard Gygabite G31
Memory 2GB DDR 2 800Mhz
Graphics Card Sapphire Radeon 4770HD
Sound Card RealTek HD Built in: with MICROLAB M-111 2.1 Speakers
Monitor(s) Displays Greatwall 19" W
Screen Resolution 1400*900



Keyboard A4-tech
Mouse A4-tech x7 2x office
PSU Valutech
Case Spark+Bluelight Cooling fan from side
Cooling Builtin+ Extra coler fan
Hard Drives Samsung 320GB SATA
Internet Speed 60KB/s
Other Info GAMING is my passion!

last few days i am having a mysterious problem.:huh:
the whole pc get to HALT and at this time my power/reset button wont work.
when i POWER/SWITCH OFF my pc. IT wont start. NO BOOT SCREEN, NO NOTHING! but after 3/4 hrs, it starts normally!! :shock::shock::shock::shock:

ANY SOL n???? PLEASE!!!

 

[Sub Styler]

Could be an issue with your PSU,

Mine is quite temeramental, it wont turn on if it's been switch off but left on at the mains. I must either turn my PC on within 2mins of a shutdown or must turn it off at the mains for a few mins before I turn it back on. I know this is my power supply as I have had 3 mobo's all behave the same way with it.

 

[th3r0ck]

OK! its okey now!! The ZALMAN fan of my GFX card got stuck when i was blowing sand from it! thats why it happened!! last night i opened it and saw that matter!! so, i just jig jaged them and reconnect!!
voila!!! my pc is running well!!! thanks SUB STYLER for ur advice!!

 

[Fumz]

Sand?

 

[th3r0ck]

Sand?

AKA dust!!