Overclocking help!

[sineater213]

Well let me get straight to the point, when I try to overclock my system fails to post and tells me to either continue to bios setting to fix it or boot with previous settings.

SPECS:
CPU - Intel core 2 duo E6600
P/S - 430w
Ram - 3GB (1gb, 1gb, 2x512mb)
Mobo - Intel D975XBX2

The weird thing is if i even try to "OC" by increasing the bus speed by one it will give a fail post. I know you have to increase voltage but I read that people can OC an E6600 to 3ghz with stock voltage. I have a really good cooling system so I'm not worried about temp neither is that a problem when OC'ing. any help would be great thanks in advance

 

[mcj]

Im no expert but im sure ive read about those MBs being good OCrs.
Have you lowered your RAM speed, ie. if you have 667Mhz RAM lower its bios speed to 533 and then try upping the bus speed. Try this well before touching voltages.

 

[JDocs]

MCJ is spot on. Intel motherboard tie the memory fsb to the cpu fsb using a devider so by rasiing your cpu fsb you automatically raise your memory fsb. Change the devider to lower the memory speed and then as your bring up your cpu fsb your memory fsb will return to stockish levels.

 

[evongugg]

Tell us more about that power supply.
What brand is it and how many amps does it have on the 12v rails?
What is your video card?

 

[sineater213]

Diamond Ati Radeon hd 3870

P/S
Newegg.com - Antec earthwatts EA430 430W ATX12V v2.0 Power Supply 100 - 240 V UL, CUL, FCC, TUV, CE, CB, C-tick, CCC - Power Supplies

Okay i've read some other OC post with my motherboard I managed to overlock to 2.80 everything running smooth with stock voltages but anything higher I get a bad post. I have 800mhz ram so should i still lower it to 533? How can i OC higher?

 

[evongugg]

You need a more powerful power supply.

ATI Radeon HD 3870 and ATI Radeon HD 3850 System Requirements
450 Watt or greater power supply with 75 Watt 6-pin PCI Express® power connector recommended (550 Watt and two 6-pin connectors for dual ATI CrossFireX™)
Certified power supplies are recommended

AMD Certified PSUs (Single+Crossfire):
http://ati.amd.com/online/certifiedpsu/index.html

 

[evongugg]

I would recommend Corsair for a new power supply.

 

[coa]

430W is not enough for that system.By new PSU.

 

[sineater213]

oh okay thanks a lot guys