Dothan overclocking thread

**jiang2005** · 07-12-2005, 06:21 PM

Originally Posted by charlie

What is b1? Stepping? How can it be 750?
What is your Vcore?
Use EIST to lower your multi.
Is there a BIOS for that board that boots with 6x multi?
2.6 or 2.7 is normal at about 1.5V Vcore....

C

I AM SURE IT IS 750 B1, I CHECKED WITH CPUZ
YES, I HAVE 6X MULTI.
I DO NOT UNDERSTAND WHY IT IS NOT EASY TO OC.
MY FRIEND ALSO LIKE ME, BUT HIS U IS CO.
1.73 ONLY CAN GO TO 2.25
2.00 ONLY CAN GO TO 2.58
CAN YO IMAGINE HIS FEELING NOW

**charlie** · 07-12-2005, 06:30 PM

Originally Posted by jiang2005

I AM SURE IT IS 750 B1, I CHECKED WITH CPUZ
YES, I HAVE 6X MULTI.
I DO NOT UNDERSTAND WHY IT IS NOT EASY TO OC.
MY FRIEND ALSO LIKE ME, BUT HIS U IS CO.
1.73 ONLY CAN GO TO 2.25
2.00 ONLY CAN GO TO 2.58
CAN YO IMAGINE HIS FEELING NOW

B1 cpu's are VERy POOR overclockers... that IS your problem. I had one too, a 730 ES... a B1 and they are terrible!
what is your ram?
It's not easy to start from step 1 on this... there are a number of large threads here that will help you learn how to OC the Dothan.

C

**JSU** · 07-12-2005, 06:58 PM

what is the differance between the ones that end with five and the other ones? (735vs.730, 745vs.740) which overclock better and which are newer? Thanks!

:EDIT: Nevermind i did some research

if it ends with 0 its new and has a 533mhz bus.

**wwwww** · 07-12-2005, 07:04 PM

Originally Posted by charlie

B1 cpu's are VERy POOR overclockers... that IS your problem. I had one too, a 730 ES... a B1 and they are terrible!
what is your ram?
It's not easy to start from step 1 on this... there are a number of large threads here that will help you learn how to OC the Dothan.

C

*checks his revision*

hmm - seems blanked out

*downloads 1.29*

there we go - B1...hmm...

well this does 2.77 @ 1.692V @ -10C at best - can't keep that on very long 'cause I use the pinmod to get those volts and the pinmod doesn't seem to work if I fill the socket with di-electric grease (to insulate it 'cause -10C)...hmm...I hang it around 2.66 for its 24/7 speed

*checks the one in his laptop*

also B1...hmm

**charlie** · 07-12-2005, 07:04 PM

7x5 are always 400fsb B1 cpu's...

7x0 are always 533fsb C0 cpu's

Intel Engineering Sample 533 fsb cpu's are simply B1 cpu's with 533fsb enabled on-die, and OC poorly.

**wwwww** · 07-12-2005, 07:05 PM

Originally Posted by charlie

7x5 are always 400fsb B1 cpu's...

7x0 are always 533fsb C0 cpu's

Intel Engineering Sample 533 fsb cpu's are simply B1 cpu's with 533fsb enabled on-die, and OC poorly.

oh - so all 400fsb are b1s aye...'cause i can't use the 533 fsb ones 'cause even the 2.13 only has a 16x multi and i'm on the dfi 855 board so my fsb doesn't go too high

**JSU** · 07-12-2005, 07:16 PM

What is the differnace between a p4p800 and a p4c800 with these things? (do all suffixes work the same?)

**jiang2005** · 07-12-2005, 08:19 PM

Originally Posted by charlie

7x5 are always 400fsb B1 cpu's...

7x0 are always 533fsb C0 cpu's

Intel Engineering Sample 533 fsb cpu's are simply B1 cpu's with 533fsb enabled on-die, and OC poorly.

THANKS ANYWAY.
DO NOT WORRY, I HAD READ ALMOST ALL PAGES IN THIS THREAD.
YES, MINE IS ES B1, THEN I CAN SAY I AM NOT SO LUCKY THIS TIME.
BUT MY FRIEND, HE BOUGHT A CO DOTHAN 740, NOT ES.
BUT NOW, HE COULD ONLY WENT UP TO 2.25G, HE KNEW HOW TO OC,
BUT JUST CAN NOT FIND A WAY OUT. MAYBE NOT ALL CO DOTHAN CAN
BE GOOD AT OC.
WHAT VOLT IS FINE FOR OC, I THINK TOO HIGH MEANS NOTHING, BUT
I DO NOT KNOW HOW MUCH IS A GOOD BALANCE POINT.

**wwwww** · 07-12-2005, 08:32 PM

Originally Posted by jiang2005

THANKS ANYWAY.
DO NOT WORRY, I HAD READ ALMOST ALL PAGES IN THIS THREAD.
YES, MINE IS ES B1, THEN I CAN SAY I AM NOT SO LUCKY THIS TIME.
BUT MY FRIEND, HE BOUGHT A CO DOTHAN 740, NOT ES.
BUT NOW, HE COULD ONLY WENT UP TO 2.25G, HE KNEW HOW TO OC,
BUT JUST CAN NOT FIND A WAY OUT. MAYBE NOT ALL CO DOTHAN CAN
BE GOOD AT OC.
WHAT VOLT IS FINE FOR OC, I THINK TOO HIGH MEANS NOTHING, BUT
I DO NOT KNOW HOW MUCH IS A GOOD BALANCE POINT.

Please I hate it when ppl talk in caps

- I've found 1.6V to be roughly the sweet spot - anymore offers little help.

gagh - I really wish this friggin ATI card could work with some upped AGP clocks, my 6800GT would do fine right up to 78Mhz, gah

**Spajky** · 07-12-2005, 10:47 PM

Originally Posted by Jericho

Railer-

I hear Yonah will be on a 166 bus.

Also the Dual core will share 2Meg L2 cache.

Yonah although based upon Dothan, is a major redesign.

Banias > Dothan was not much of a change, so Yonah should be even better

IMHO I am affraid, that Yonah & dual core ones would not work properly on existing Desktop MoBo &/or using existing CT adapter (different voltages?) & will not be any bios uppgrade ... Maybe will come out newer CT adapter (V2.0?) & bios for it, since actual one (does not support) is not suitable for running LV & VLV Dothans either (IMHO could work, just not recommended) ...

**Spajky** · 07-13-2005, 02:44 AM

(133Fsb/533qp ones [7x0] have maybe max a watt more at same clock)
/default BOOT Vcore @ all of them = only 1,2Vcore!/

/default Vcore=1,36V/
Pentium m 755
(Dothan 90nm, FSB400, 2 Mb L2 Cache, 2,0 GHz) 21 Watts
(Intel indication)
Pentium m 745
(Dothan 90nm, FSB400, 2 Mb L2 Cache, 1,8 GHz) 19 Watts
(estimated)
Pentium m 735
(Dothan 90nm, FSB400, 2 Mb L2 Cache, 1,7 GHz) 18 Watts
(estimated)
Pentium m 725 [P-M 730-133fsb=approx.200$]
(Dothan 90nm, FSB400, 2 Mb L2 Cache, 1,6 GHz) 17 Watts
(estimated)
Pentium m 715
(Dothan 90nm, FSB400, 2 Mb L2 Cache, 1,5 GHz) 16 Watts
(estimated)

/default Vcore=1,26V/
Celeron m 360
(Dothan 90nm, FSB400, 1 Mb L2 Cache, 1,4 GHz) 13 Watts
(estimated)
Celeron m 350 [approx.90$]
(Dothan 90nm, FSB400, 1 Mb L2 Cache, 1,3 GHz) 12 Watts
(estimated)

/default Vcore=1,39V/
Pentium m 1,7 GHz
(Banias 130nm, FSB400, 1 Mb L2 Cache, 1,7 GHz) 25 Watts
(Intel indication)
Pentium m 1,6 GHz
(Banias 130nm, FSB400, 1 Mb L2 Cache, 1,6 GHz) 24 Watts
(estimated)
Pentium m 1,5 GHz
(Banias 130nm, FSB400, 1 Mb L2 Cache, 1,5 GHz) 23 Watts
(estimated)
Pentium m 1,4 GHz
(Banias 130nm, FSB400, 1 Mb L2 Cache, 1,4 GHz) 22 Watts
(Intel indication)
Pentium m 1,3 GHz
(Banias 130nm, FSB400, 1 Mb L2 Cache, 1,3 GHz) 21 Watts
(estimated)

/default Vcore=1,36V/
Celeron m 340
(Banias 130nm, FSB400, 512 KB L2 Cache, 1,5 GHz) 22 Watts
(estimated)
Celeron m 330
(Banias 130nm, FSB400, 512 KB L2 Cache, 1,4 GHz) 21 Watts
(estimated)
Celeron m 320
(Banias 130nm, FSB400, 512 KB L2 Cache, 1,3 GHz) 20 Watts
(estimated)
Celeron m 1,2 GHz
(Banias 130nm, FSB400, 512 KB L2 Cache, 1,2 GHz) 19 Watts
(estimated)

Generaly, C-M & P_M have at same Vcore & clock frequency same thermal dissipation ...

LV ones have approx. just 1/2 & ULV ones just approx. 1/3
of dissipation of medium of upper ones, since they have default even lower voltages & frequencies, also Boot Vcore (best samples!) but expencier
& could die if mounted on desktop boards/or thru CT adapter-
(not supported!), but IMHO LV ones with highest frequencies
should work & also OC w/o upping Vcore nicely, but I am not
sure ...

**olDirdey** · 07-13-2005, 04:31 AM

Originally Posted by charlie

7x5 are always 400fsb B1 cpu's...

7x0 are always 533fsb C0 cpu's

Intel Engineering Sample 533 fsb cpu's are simply B1 cpu's with 533fsb enabled on-die, and OC poorly.

Hey Charlie, I don´t think that all ES 533´s CPU´s are B1 with 533FSB enabled on-die.

I have a new ES Chip, but this time 2.26. This one overclocks very very good. 3092MHz was highest clock on unmodified P4C800-E with 1023 Bios.

Boot up with 15x200 is no problem :-) Now it´s time to reinstall windows to get some good Super Pi Times

**caater** · 07-13-2005, 04:37 AM

looking good that 2.26.. what cooling?

i wonder if LV/ULV chips are picked from the same locations from wafer 2.26's are. i remember something that chips in the middle of wafer will be usually low voltage and higher clocking ones..
so i don't see no apparent reason why LV dothans won't work with adapter.. apart the overvoltage issues and maybe asus bioses rejecting them..
anyone have LV/ULV cpu lying around and want to risk to try it with ct-479?

they are quite expensive.. but if you'll get for $300-$400 a chip that does 2.9-3ghz on air, that's not much..

**vegeta** · 07-13-2005, 04:38 AM

Originally Posted by olDirdey

I have a new ES Chip, but this time 2.26. This one overclocks very very good. 3092MHz was highest clock on unmodified P4C800-E with 1023 Bios.

Boot up with 15x200 is no problem :-) Now it´s time to reinstall windows to get some good Super Pi Times

3,1 Ghz with aircooling? If so what's the ambient temp?

**vegeta** · 07-13-2005, 04:55 AM

Originally Posted by caater

looking good that 2.26.. what cooling?

i wonder if LV/ULV chips are picked from the same locations from wafer 2.26's are. i remember something that chips in the middle of wafer will be usually low voltage and higher clocking ones..
so i don't see no apparent reason why LV dothans won't work with adapter.. apart the overvoltage issues and maybe asus bioses rejecting them..
anyone have LV/ULV cpu lying around and want to risk to try it with ct-479?

they are quite expensive.. but if you'll get for $300-$400 a chip that does 2.9-3ghz on air, that's not much..

LV and ULV are 400 fsb (B1) dothans as you know they don't that well compared to the 533 (C0) models.

So I don't see any similarities between them

**caater** · 07-13-2005, 05:09 AM

Originally Posted by vegeta

LV and ULV are 400 fsb (B1) dothans as you know they don't that well compared to the 533 (C0) models.
So I don't see any similarities between them

no they're not

http://download.intel.com/design/mob...T/30220911.pdf
pm 758 (LV 1.5GHz, SL89X), 738 (LV 1.4GHz, SL89Y), 723 (ULV 1GHz, SL8A3), 733J (ULV 1.1GHz, SL8A2), 753 (1.2GHz ULV, SL89Z), are all of c0 stepping

**olDirdey** · 07-13-2005, 08:08 AM

Originally Posted by vegeta

3,1 Ghz with aircooling? If so what's the ambient temp?

No Aircooling, watercooling!

ambient temperature is about 25°C-28°C, it´s very warm without AC :-)

**railer** · 07-13-2005, 02:03 PM

1205FSB on P4P800se no vmods to MB 2.85v on the ram 1:1

It's nice to know that it's possible hope with better cooling i can use it to bench

**vegeta** · 07-13-2005, 02:11 PM

Originally Posted by railer

1205FSB on P4P800se no vmods to MB 2.85v on the ram 1:1

It's nice to know that it's possible hope with better cooling i can use it to bench
http://www.xtremesystems.org/forums/...chmentid=34086

Hehe, it seems those hynix d5 hit hard

Can I see some pics of your aircooling, what the hell is chilled air

? Airco

. cpu -14c idle/-3c load seems interesting

Actualy I don't see using WC will improver your result

**railer** · 07-13-2005, 03:11 PM

Originally Posted by vegeta

Hehe, it seems those hynix d5 hit hard

Can I see some pics of your aircooling, what the hell is chilled air

? Airco

. cpu -14c idle/-3c load seems interesting

Actualy I don't see using WC will improver your result

hehe i dont nope much for WC ether. It will make it way more stable proabaly cpu -21c idle/ -14c load. Should be enough to make it 24/7 gaming rig @ 3G. Rememeber this is not a benching setup, box runs for as long as i like. On the pics the box is just getting assembled but you will get the point. Watercolling is setup diferent then on the pics, my heatercores are repositioned and get all the air from AC fan. You like their size

they are from Mustag GT 1977 .
Also check the q3 screenshot this game uses all cpu like no other. I bet with xp90 it be below 0

. PI benchmark just raises up temps to -5c

So far i find that 280x10 1:1 2.4.4.6 is the best 24x7 gaming setup. With realy not bad 1121FSB for descent rambandwide, ok ram latency timings @280, and realy low latency cache this cpu has which = fast read access to memory, which is the most imporatant for game performance , this setup realy shines. Cpu power = to fx55 @ 3.4 at least. How many do game on that speed? I realy dobt Fx-55 would give me same performance in my chillbox. Phase is for benchmarking not gaming. I do respect it and want one for my self to but that's not an option for now

. Id love to have one day anyway thou

**vegeta** · 07-13-2005, 04:00 PM

What the hell for a box is that?

Is it a part from an Airco? Or a rebuild fridge? I can't make it out of your pic.

How come your AM3 result is so low, I see a graphiccard that is at least a Gainward GF6800GT (@ultra speeds or a GLH edition :P)

280 fsb is idd nice for a 24/7 system @ such low voltages

I wish I could do that with my BH5/6 stickies

**caater** · 07-13-2005, 04:32 PM

very nice

no condensation probs btw?
good luck for that 3G

**railer** · 07-13-2005, 05:06 PM

What the hell for a box is that?
Is it a part from an Airco? Or a rebuild fridge? I can't make it out of your pic.

How come your AM3 result is so low, I see a graphiccard that is at least a Gainward GF6800GT (@ultra speeds or a GLH edition :P)

hehe i hope this next pics will make it clear. It's 5000BTU AC inside the 98can cooler. If you can read on 2nd pic what does the label says

And yea i have sold my GT to get this Dothan sys

. But there is no regrets there, il get an 6800 Ultra in short while. Here is what my card scored with p4 in Aqua http://arc.aquamark3.com/arc/arc_view.php?run=421432806

very nice
no condensation probs btw?
good luck for that 3G

thanks il need it.
No no condensation i sealed it completly air tight. Took a while but in the end it was all worth it. Drew from EOCF helped mentaly on this progect. I was runing my s478 p4 @4.3 24/7. But this Dothan is just a blessing for the box almost no heat otput compare to pressy