Windows 7: Computer won't start.

I switch on computer it starts the checking process before Post scree but, it continuously cycles round and round before the Post screen. Then after 5, 6 or 7 cycles it goes Beep then shows the Post screen.
1. What's causing this problem and how to fix it?



Operating System
MS Windows 7 Ultimate 64-bit SP1
CPU
Intel Core 2 Quad Q6600 @ 2.40GHz 51 °C
Kentsfield 65nm Technology
RAM
4.00 GB Dual-Channel DDR2 @ 400MHz (5-5-5-18)
Motherboard
ASUSTeK Computer INC. StrikerExtreme (Socket 775) 40 °C
Graphics
SyncMaster (1680x1050@60Hz)
ATI Radeon HD 5450 (ASUStek Computer Inc) 60 °C
Hard Drives
147GB Western Digital WDC WD15 00HLFS-01G6U SCSI Disk Device (ATA)
Optical Drives
PIONEER DVD-RW DVR-112D ATA Device
Audio
High Definition Audio Device

Suggest contacting ASUS or referring to your motherboard manual. The motherboard manual will have troubleshooting steps for boot issues related to the POST cycle.

( Intel Core 2 Quad Q6600 @ 2.40GHz 51 °C Kentsfield 65nm Technology)


to start with i'd look into what's making your cpu so hot . maybe you don't have the heatsink set right and it maybe shorting something out on your motherboard causing it to go into the loop your getting. just a guess but that cpu temp looks to high.

scrooge

Thats what you get for using Arctic Silver.

Have you made any changes to the BIOS, like overclocking the RAM or CPU?
If so, you may want to go back to the default settings.
Also, try removing the RAM and putting it back in.

Download and install CPUZ and Upload screenshots of the CPU, Mainboard, Memory, and SPD tabs.

Also, go into your BIOS and post all RAM and CPU Voltages and all RAM settings (timings, frequency, etc.)

Thanks to Dave76 for help learning RAM Stability

@Sardonicus

No Changes made.

@writhziden

See Below




I have also tried moving Memory around. It still cycles 6 times before loading Post page.

Memory settings look good. Try bumping the NB Voltage to 1.3 Volts and see if you have more stability.

CPU temperature looks a little high for idle. You may want to clean dust out of the system or reapply the thermal compound to the CPU and re-seat the heatsink/fan apparatus.

Have changed thermal paste she rides a little high on temps for some reason?

Could be the fan assembly is not highly rated for cooling. There is a high variance in how well certain fans cool the CPU; some do really well, and others are closer to the stock ratings. I have a low rated fan in my desktop, so my desktop runs a bit hot, too. I wouldn't worry about it unless the temperatures are getting to around 85-90 C during stress.