strange problem

[coleman]

hi all
here is the situation, i am a first time overclock er and have been playing around trying to get to grips with how to obtain a stable overclock. my rig is

CPU E6600 Intel core2 Duo 2.4GHz
Motherboard ASUS P5B deluxe – wireless
RAM 2GB – 2x1GB MUSHKIN PC2-EM6400 5-5-5-12
VGA NEW Xpert Vision GeForce 8400GS 256MB PCIexpress Graphics Card
PSU NEW PSU Trust 570W Pro
Sound onboard
DVD and CD drives
Storage Hitachi 250GB

i have tried many different combination but no matter what i do i keep having the same problem, after the overclock (upped to 2.8ghz) when i push the power button all the lights come on, then go of. then the computer boots the second time round. When i change it back to default setting the problem is eliminated, so i am assuming that it is not a hardware problem. i have looked on the net and cant find any similar problems, so your help is much needed.

thans to all replies in advance

 

[frozenlead]

Your PSU is the problem. I've never heard of a Trust PSU, so I'm going to assume its tier 4 or higher. The sticker says 570W, but I doubt it can actually get that high.

Get a new PSU.

 

[roadrunner197069]

^ +1

 

[br3nd064]

I also think it's the PS. I can't find any specs on it, and it seems to be sold only in the UK.

 

[coleman]

thanks for the replies

just a couple of questions

1) what is s meant by tier 4 or higher
2) what does ^ +1 mean

 

[randomizer]

thanks for the replies

just a couple of questions

1) what is s meant by tier 4 or higher
2) what does ^ +1 mean

1) It is referring to the (now rather decrepit) tiered list of PSUs found here: http://www.xtremesystems.org/forums/showpost.php?p=1596160&postcount=2
2) A short way of agreeing with the above post (^ is like an arrow pointing upwards).

 

[coleman]

ok cool thanks 4 the help

 

[coleman]

650W TX Corsair PSU, single 12V rail, energy efficient, quiet & cool, fully compatible, 5yr warranty

i am currently looking at this psu, it will be more than enough for hd 4870 oc'ing, and future proof, what do you recon

 

[roadrunner197069]

Yup.

 

[charles48864]

My rig will do the same if I make power changes in the bios and boot to windows. If I enable or disable the floppy in the bios and boot to windows this will happen one time and when I reboot it no longer will do it again,maybe some thing to do with windows power profile.

 

[coleman]

i tought that myself but i can overclcok and change the power setting to around 2.55ghz and it is ok, it is only when i go past this that the problem starts.

+ the comments sujest that it is the psu

thanks anyway