overclocking Q9450..newbie

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8 Jul 2007
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Hi guys

I have never overclocked before and after reading few bits across the net, i managed to overclock my Q9450 @ 3.2ghz using 1.2 core voltage and ddr3 ram running @ 1600mhz @ 1.9V

thats all i have changed and i have been running orthos for about 15 mins and my load temps are sticking about 55C and my idle is about 40-42ish.

is that all okay or do i need to change anything else?

thanks
 
Sorry my bad, my spec is:-

Asus P5E3 Premium Wifi
Q9450
Antec 1200 Case all fans on low
TRUE 120 Cooler
2GB OCZ DDR3 1600 memory
Corsair 750 PSU
Cheapy GPU - Waiting for decent prices for GTX280 hopefully.

Orthos is still running and the temps are :-

using Real Temp 2.60

56 51 46 43
 
Orthos only stresses 2 cores. Use Prime95 for stressing a quad-core. Be sure to enable the Round Off Checking option.
 
cheers ill give it a go now,

orthos stopped by itself came up with this:-

2:FATAL ERROR: Rounding was 0.5, expected less than 0.4
2:Hardware failure detected, consult stress.txt file.
2:Torture Test ran 13 minutes 54 seconds - 1 errors, 0 warnings.
2:Execution halted.
 
i have changed it to 1.27 in bios but its showing as 1.208 in CPU-Z.

running prime95 small FFTs now. any recommendation how long to run it for?

temps so far are :- 59 54 54 53

thanks for all the help so far
 
If that's as far as you want to clock it then run Prime95 for atleast 8 hours. But you could probably get away with less than 1.27v.
 
it was on 1.25 in bios when it came up with that error. so i bumped it up by .2 should i bring it down to 1.26?

also i have not made any changes to any other voltage besides ram to 1.9
 
You're getting a bit of vdroop there which is why when you've set it to 1.27 in the bios it shows up at 1.208 in cpu-z. There should be an option in your bios that is labelled LoadLine Calibration or something similar. Set it to Enabled and this helps counter the droop. Means you should be able to hit the same clocks but with a lower voltage in the bios.
 
enable load line calibration in bios aswell
you can go a lot further than that yet with that combination, should easy get 450*8 for 3.6ghz reckon you can get to at least 460 (3.68ghz)myself maybee 465 (3.72ghz)on air, thats about what I got on air, upto 490 now but on custom water with my mosfets and NB cooled aswell, plus a really good heatsink on SB and a lot of volts
But dont go as far as me as I am silly, but am also prepared to replace it if I blow it up.
 
Does the Asus P5E3 suffer from the same loadline calibration issue as the Rampage Formula? ie - the difference on vcore at idle and under load is so great that a system that's fully stable in Prime95 can be unstable when idle?

Personally I see no reason to enable loadline calibration til you're needing over 1.5v under load. Intel demanded vdrop and vdroop for a reason.
 
under load line calibration there were only 3 options

1) auto 2) normal 3) performance

i have selected performance and dropped the vcore to 1.20 but it didnt boot up kept on rebooting so changed it to 1.23 and it seems to be running fine so far just started prime95 now..fingers crossed.

cheers once again guys for all the help and support.

i dont think i am going to clock it anymore than 3.2 i was only going to touch it to 3ghz but i got little greedy...:rolleyes:
 
Does the Asus P5E3 suffer from the same loadline calibration issue as the Rampage Formula? ie - the difference on vcore at idle and under load is so great that a system that's fully stable in Prime95 can be unstable when idle?

Personally I see no reason to enable loadline calibration til you're needing over 1.5v under load. Intel demanded vdrop and vdroop for a reason.

Can you explain some more Cob I have it enable using 1.41250v in bios.
 
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