new cpu wont boot

lanzarobbie · 12 Dec 2009 at 18:42

hi i have an e2180 @ 3.2 1.5v

i have just changed it to a e8200 but the pc wouldnt boot, ive changed it back to my old cpu and it boots,i think the new cpu is dead.

I just thought, as i had my old cpu overclocked, do you think that is why when i put my new cpu in, it wont boot? (monitor doesnt even come on)

Do you think if i go to default settings,then change the cpu, it might work, also is it possible that ive fried it as i had a voltage of 1.5 set

reflux · 12 Dec 2009 at 18:46

What motherboard is it?

RJC · 12 Dec 2009 at 18:47

Check for BIOS updates from manufacturer.

lanzarobbie · 12 Dec 2009 at 18:47

asus p5kc

lanzarobbie · 12 Dec 2009 at 18:49

i have 1203 bios its the latest version

thanks

RJC · 12 Dec 2009 at 18:50

Link below shows cpu support list which your motherboard can take.

http://uk.asus.com/product.aspx?P_ID=fFZ8oUIGmLpwNMjj

Edit: Try a CMOS reset and see if that helps.

lanzarobbie · 12 Dec 2009 at 18:51

i cant get that page to open

RJC · 12 Dec 2009 at 18:59

I can't either now :eek:

even going through the Asus website :confused:

lanzarobbie · 12 Dec 2009 at 19:09

just tried a cmos reset and no change

RJC · 12 Dec 2009 at 19:25

Starting to sound like a faulty cpu, is there a chance of testing it in another pc before RMA.

lanzarobbie · 12 Dec 2009 at 19:32

no chance of testing it, i brought it off ebay as a new oem for £70,he was selling 10 of them, hes had good feedback even from other people thst have brought the same cpu

gareth170 · 12 Dec 2009 at 19:36

u may of broken it by leaveing the voltage at 1.5v.

u should always put the settings back to auto before changing the cpu or reset the cmos before turning on

lanzarobbie · 12 Dec 2009 at 19:42

yeah i didnt think of that till afterwards, i would have thought that it would just come up with overclock failed? or would reset bios as it has found a new cpu?

gareth170 · 12 Dec 2009 at 19:49

lanzarobbie said:
i would have thought that it would just come up with overclock failed?

yes if the fsb to high. but voltage & heat can kill it..

lanzarobbie said:
would reset bios as it has found a new cpu?

do u mean reflash the bios? or reset the cmos?

EsaT · 12 Dec 2009 at 19:55

gareth170 said:
but voltage & heat can kill it..

Heat isn't required and with all built in thermal protections it would take effort to kill CPU that way.
But too high voltage destroys ICs simply by breaking insulations.

JonJ678 · 12 Dec 2009 at 20:24

1.5V shouldn't have killed it right off though, just hurt it a little. You need high voltage at highish temperatures for some time to damage the circuitry I thought?

Reset to defaults with the old cpu, update the bios (Asus' website is fun...), put the new cpu in. Good luck

lanzarobbie · 12 Dec 2009 at 20:25

its watercolled not that makes any difference

lanzarobbie · 12 Dec 2009 at 20:26

ive reset defaults that didnt help,and i already have the latest bios

lanzarobbie · 12 Dec 2009 at 20:58

well i didnt reset defaults, i cleared cmos, i think this is the same thing

lanzarobbie · 13 Dec 2009 at 10:29

Is there anything else i can try, like unplugging everything exept mb cpu and ram.

or am i talking rubish?