Pentium D 940 Limits?

Logsi

Logsi

Logsi

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Ive just recently got a Asus P5W DH Deluxe and i started to overclock almost immediatly after i installed this board!

Im just a bit confused to how easy it was though on this chip (Pentium D 940) I wacked it straight up to 3.6 from 3.2 and it was fine straight away. Now im wondering how far can i go with this chip, had anyone got any experience in overclocking Presler core Pentium D's?

Heres a CPU-Z screen.

cputn0.png


Josh
 
I am running DDR2-533 atm i am going to get the same geil as you in the future though, the one that is on this week only this week.

I am currnetly leaving it at 3.6 the same as you, i am trying to stay at stock volts though.

Ill up the speed in a couple of days when i get bored or something. :p

Josh

EDIT- I cant seem to update my BIOS though im stuck on 701 or 801 or something, whenever i try installing Asus Update program i get errors and says install an asus motherboard to use this software.
 
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Your RAM and CPU are running 1:1, you wont have to worry about your RAM being a restrictive factor when overclocking as its 667mhz fsb whereas your cpu wont even get close to that.

So it doesnt go any further on stock volts?

If you cant go any further on stock volts and its stable I would say up the volts from your 1.192v up a couple presets from that in the BIOS and go a bit further being more cautious this time checking it on OCCT or something.
 
Vanilla_Ice said:
Haven't yet reached the limits on stock.

What is OCCT? :confused:

If having raised the Vcore a few notches and cannot clock any further, how do i then find the max FSB? Once I have found the max FSB do I then choose the divider that allows both the max CPU and FSB clock?

Cheers,

ICE

UPDATE: Was able to load into windows with a bus speed of 240 (3.85Ghz), but crashed. Have upped the vcore to 1.260 as registered in CPU-Z. Now speed fan is saying that the CPU temp is 72c. Is this too high for a 940?
Click to expand...

Is 72*C under load? i would say thats pretty high! Is that with a stock cooler? Im using a Zalman CNPS9500 and it seems to do a good job, 35*C idle.

You dont need to worry about Dividers as your RAM isnt your restrictive factor! Usually you would have PC3200 ram which is 200fsb which will be a restrictive factor as you have PC5300 you wont have to worry.

Google OCCT and download the program, it tests your overclock to make sure its stable.

Josh
 
Nice clock!

If it stable dont worry too much about the temps. Just dont go overboard!

I think you have a better stepping than mine! :( I may be restricted as i am stuck on the same BIOS! I cant update it from Asus Update and i cant find my flash drive and i dont have a floppy disk drive in my computer atm and i dont have floppy disks anymore lol.

Ill give it a go tonight i reckon!

Josh
 
Wow nice overclock!

Still havnt got round to mine lol, stupidly installed Civilization 4 and ive been hooked!

Theres no point in updated the BIOS,i would if there is a problem, is there a list of stuff fixed in the BIOS updates?

Im not entirely sure what you mean by MCH though?

Your not happy with your 4.2 Ghz!!! :p :D

happy overclocking!

Ill keep you posted when i try mine!

Also what case do you have btw? Has the case got good venitlation?

Josh
 
I would try and have the rear fan as fast as possible! Especially when overclocking, maybe get some Akasa Ultra Quiets?

What FSB is your processor running at now? Im a bit confused by the RAM divider lol :p

Josh

EDIT : What method did you use to update your BIOS?
 
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What BIOS you running now then? Is there any problems with it? Any gains? If its good i shall dig out a floppy disk drive and flash the BIOS to the new one!

Ill keep you posted on my overclocking progress.

The Akasa Fans are very quiet!!! Im sure other people may recommend others but i stand by them!

Josh
 
Nothing more i can say about your OC except that i am jealous! :p Hope mine reaches this!

Are you happy with your OC? I can see your itching to go further!
 
Ok im updating the BIOS as it totally crashes when i wanna go past 230. Ill report back after! Gonne install the 1201 BIOS, there is a 1301 but im gonna use the one on the asus site which is the 1201.

Thanks for the link!

Josh

EDIT!!! : Just updated! It kept all my clocks when i flashed to the new BIOS so there should be nothing stopping you from updating now!!!
 
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Have you done that? I dont think i would, ill be too worried!

Even though ive been building computers and such for many years i think ill be a bit worried about breaking anything!

When i put a zalman on my/ since sold X800XT PE that was scary enough!

I do need to put one on my X1900XT-X as it is the most annoying thing ever!!!

Ill try and clock again today as its my day off.

Josh

EDIT : PC PROBE II says that my MB is running at 33-35*C whats your like with the new paste?
 
Hey Ice,

whenever i change my voltage from auto it never boots, if i put it on the lowest setting, (stock volts) it wont even boot! 1.250v.

Is my board a duff? Or is it my chip?

Bit confused!

Josh

EDIT : Should i raise the MCH voltage?

EDIT : When i overclock to 237 fsb or anything over 230 with Vcore set to auto i get this message after post,

<windows root>\system32\ntoskrnl.exe

Josh
 
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My RAM is DDR2-533mhz PC4200 Samsung generic stuff that i got with a prebuilt. This RAM should be fine?

Im quite confused by it?

Ill give it a go again when im home from work! Should clearing the cmos do anything?

Josh
 
Thanks for the the help ICE its not going without notice!

Ive got this stupid AI Booster and PC Probe installed, i may remove these as it may be doing something, worth a try!

Ill have a mess around in the BIOS as i cant see it being a duff board, would be weird if it was.

Thanks Again!

Josh

EDIT : In a past post i mentioned about it not finding a file on boot up from 237 fsb could there be a problem with the southbridge?
 
I think i shall do that. What thermal paste do you use? I was going to get some AS5 but is it worth it, i may just use my Dielectric Cooler Master Premium.

Josh
 
Hey ICE,

Thought id give you a heads up, theres a new BIOS out, feels like third this week! Version 1305.

I have found out that why i couldnt up the VCORE, it tells you why in the new BIOS, i have to disable C1E and EIST for me to up the VCORE! So touch wood ill be able to overclock now!

At least Asus are doing something about the BIOS's!

Feels quicker booting up also!

Josh
 
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Hey ICE,

Ive cracked it, ive got back to my old methods of trial and error from the beginning. Starting from 3.2 and working my way up 5fsb changes at a time and its working. This is what i should have done in the first place!

Heres where i am now, im not stopping though, need to get to 4.0Ghz to be happy!

overclockrs2.png


Thanks again!

Josh
 
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