Dothan overclocking thread

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05-29-2005, 06:20 AM
Malachia

well, 2800mhz on air seems too much for me...
05-29-2005, 06:28 AM
charlie

there are some "tricks" of the trade, too :D
One thing that can be done is to take a piece of DI and sit it on the heatsink for 5 or 10 minutes before boot... or freezing spray...

C
05-29-2005, 06:30 AM
Malachia

easier to mount you autocascade :D
05-29-2005, 06:32 AM
nathan400

I'm pretty sure I have a 725 but cpuz says i have a 730 and i'm locked at the multiplier 12...how can i be sure which it is?
05-29-2005, 07:11 AM
Malachia

Quote:

Originally Posted by nathan400

I'm pretty sure I have a 725 but cpuz says i have a 730 and i'm locked at the multiplier 12...how can i be sure which it is?

just read on it :)
05-29-2005, 07:23 AM
nathan400

Quote:

Originally Posted by Malachia

just read on it :)

well actually my cpu doesn't have the model # on it...just some code
05-29-2005, 07:40 AM
alpha0ne

Quote:

Originally Posted by nathan400

well actually my cpu doesn't have the model # on it...just some code

hehe time to pull out the 'enigma machine'

sorry I cannot help myself :slapass:
05-29-2005, 07:40 AM
Malachia

well, it must be like 1.6/533 on it...plz, write here what is written on your cpu or simply post a pic!
05-29-2005, 09:45 AM
NoX

Quote:

Originally Posted by charlie

Well I bought a P-M 750... to replace the B0 730...
Only question IS.... will I be able to boot @ 14 x 201=2814mhz @ 1.5v on AIR?? Obviously it'll be fine on phase change, but hopefully I can play with it on AIR, too.

C

I think it's possible but for sure not with the standard heatsink. My Dothan is running 24/7 at 2.7G 1.5V temp 55-65C range. I ordered an XP-90, I hope to hit 2.8G stable with that.
05-29-2005, 04:41 PM
nathan400

Quote:

Originally Posted by Malachia

well, it must be like 1.6/533 on it...plz, write here what is written on your cpu or simply post a pic!

I'll write down the numbers tommorow...I can't take a pic cuz i don't have my camera with me. Its strange...the mutipliers 12-28 can be selected but only 12 works (it can't go up or down). Also when ever I open my bios the 28 multiplier is always selected but boots up as 12?? My cpu can do 158~159 max fsb so I can't really overclock it too far. Could it be a bug in the 1021d.003 bios that won't let me select a 16 multiplier?
05-29-2005, 10:59 PM
DrJay

Quote:

Originally Posted by NoX

I think it's possible but for sure not with the standard heatsink. My Dothan is running 24/7 at 2.7G 1.5V temp 55-65C range. I ordered an XP-90, I hope to hit 2.8G stable with that.

Going from stock heatsink to zalman 7000 only gave me an extra 40-50 stable mhz at 1.6 volts. You may get better results though....you seem to have a much better cpu.
05-29-2005, 11:15 PM
NoX

What are your temps?
05-29-2005, 11:23 PM
DrJay

The maximum temp I've seen is 40 C....during a superpi 1 meg run at 2690mhz and 1.6volts. Might have gotten a little hotter if it was loaded for a longer period. Used a panasonic 69cfm 92mm fan. Also, forgot to mention, that is the alcu version of the 7000.

Jay
05-30-2005, 03:55 AM
Stoolman

does it matter if its a 478 pin dothan or a 479 pin?
Just now i got an offer for a 478 pin, 533mhz C0 stepping Pentium M 750, but the drawback is of course that it is a 478 pin PPPGA socket processor.. Would this matter? I have used Banias processors earlier both on Aopen 855 motherboard, and on a CT 479 adapter, but havent done any overclocking on them...

Could someone please help me?
05-30-2005, 04:46 AM
Mauri Antero

2 Attachment(s)

With hatemi moded machII, Dothan 730 with asus p4p800 e dlx 3Ghz.
Only 200mhz more than with air :(
05-30-2005, 08:18 AM
200%absolut

had someone tested the VID settings in the P4P800 VM bios ?
05-30-2005, 08:28 AM
Malachia

Quote:

Originally Posted by Mauri Antero

With hatemi moded machII, Dothan 730 with asus p4p800 e dlx 3Ghz.
Only 200mhz more than with air :(

bro you need more v-core!!!!
05-30-2005, 08:37 AM
Mauri Antero

Quote:

Originally Posted by Malachia

bro you need more v-core!!!!

heh cpu-z bug 1.55V ;), but increasing that to 1.6V doesnt give me any help
05-30-2005, 08:41 AM
uclajd

Quote:

Originally Posted by Eel

does it matter if its a 478 pin dothan or a 479 pin?
Just now i got an offer for a 478 pin, 533mhz C0 stepping Pentium M 750, but the drawback is of course that it is a 478 pin PPPGA socket processor.. Would this matter? I have used Banias processors earlier both on Aopen 855 motherboard, and on a CT 479 adapter, but havent done any overclocking on them...

Could someone please help me?

Dothans are 478 pin, they just call them 479 to differentiate from 478 desktop chips. Despite the same # of pins, the layout is of course different.

This is the overclocking thread; see this thread for general Dothan questions.
05-30-2005, 11:22 AM
DrJay

Quote:

Originally Posted by Mauri Antero

heh cpu-z bug 1.55V ;), but increasing that to 1.6V doesnt give me any help

These Dothans seem to hit a wall at a certain point. Still, its surprising that you didn't get more than 200mhz using youe mach II.
05-30-2005, 11:24 AM
charlie

contact??
05-30-2005, 01:01 PM
nathan400

I can't find and A2 stepping on intels site...theres all B1/C0. CpuZ says mine is A2...Could it be some sort of engineering sample??
05-30-2005, 05:53 PM
Lithan

Anyone able to link me to any benchmarks of Overclocked Dothans vs overclocked A64's in Call of Duty? I was going to do my own benching, but Im getting sick of waiting for my A64 boards to get back and need to decide now which rig will be my main one.
05-30-2005, 08:07 PM
Kjaks

Quote:

Originally Posted by Lithan

Anyone able to link me to any benchmarks of Overclocked Dothans vs overclocked A64's in Call of Duty? I was going to do my own benching, but Im getting sick of waiting for my A64 boards to get back and need to decide now which rig will be my main one.

http://www.computerbase.de/artikel/h...desktop-pc/23/

This is the only one I found, and its benched on the AOpen i855GMEm-LFS which aint performing on line with ASUS cards :rolleyes:
Clocks:
P-M 755 @ 2.0GHz and 400MHz bus
P-M 755 @ 2.4GHz and 600MHz bus
05-31-2005, 12:05 PM
Lithan

So looks like clock for clock the Dothan will be slightly faster, but if my a64 clocks 150+mhz more, then it'd probably be the best choice.

Dothan was going to be a no brainer, but it looks like I've got my hands on possibly the best stepping venice available right now. But I've also got a 730 and a SLK948u coming, so I won't know for sure for a week or two which will be my main rig... though I suspect the A64 will be main and the dothan will be my micro-case/silent server/secondary.

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