Dothan overclocking thread

[Jack]

read the topic. over 1.6V generally doesnt help.
So i dont think you'll find people running 1.7V vcore

[Jericho]

read the topic. over 1.6V generally doesnt help.
So i dont think you'll find people running 1.7V vcore

I have read the topic, and since I have a dothan and actively taking part in it - I wanted to know if anyone was.

Regardless if it helps little or at all.

[Spajky]

But "miraculously" on LN2 they can go to 4gHz++ at 1.65v...

My Dothan is benchable at 3106mHz @ -65C

C

I was thinking about TL stable 24/7/365 even 100% load & on summer ...
[ I am not interested in showcase-record achievements & passing benches, but it is nice to see them too ]

[wwwww]

anyone had any problems with an x800xt on the DFI board? Seem to only get around 20k in 01 and 10k in 03 with it at 633/570. Had the same problem with an X800pro VIVO @ 16x1. Getting like 27k with a 6800gt though. My fillrate on the x800 is wwaaaay to low as well - onyl around 7.7k. Only thing I can think of is the 4xAGP but I dunno. Anyone got any ideas?

[sky]

4x agp does nothing like dropping 7k, but it could very well be a driver related problem.
when i first got my dothan, i slapped on a branspanking new win2k install and did some
benches.. superpi1m, 3dm, the works.. while superpi was about par, 3dm(2k1) was off
by a good few points, 5k iirc. so i asked a few friends, what an intel setup needs to get
the gfx flying (having done my last intel in pentium 90mhz times) ...
chipset drivers was what they told me (doh). in my case it worked wonders - should have
thought about that myself, but got carried away with excitement. swapping a now dead
9800xt with a 6800gt (including new driver install, ...) did show some differences, but
nothing like you experienced..

seeing the gt score as high as she does, i doubt its the agp-driver, but it might be
good checking that one out...covering all bases, so to speak.

btw what dfi board are you using? the pos i855 thing?

[railer]

Still same Hynix b5 ram @ 2.85v but way better PI times. I managed to do 10x280 1:1 with 2.4.3.8 and 11x 265 1:1 2.4.3.8. When i'l put my chiled water on i should be able to go further with 11x265. I'm trully amazed by this ram cause i never thout it would do 280 @ 2.x.x.x timing. Having mem controler cooled to -25c proabably helps. Will use OCZ booster to give these 3.1v is the max i think they will hold. Is this a good score for my FSB and timing guys? i have not tweaked OS fresh install.

[Sume4]

Quite nice scores i think. I just wish i could do that with my upcoming 760. What cooling?.. air? warm water?

[JSU]

Well iam thinking about getting one of these babys but am not sure wether now is the time to get one. I guess that the 750 is the one i want. But is intel going to come out with dual core ones in the near future? Will they be reasonably priced? How much would i 750 normaly go for and where can i get one? What is the best mobo with agp, i guess its a asus with te adapter right? How do these things react to timings on ram? I would love to chill one of these things .

That about sums it up thanks alot guys.

[railer]

Quite nice scores i think. I just wish i could do that with my upcoming 760. What cooling?.. air? warm water?

This is with chiled air inside the box. It gets beter i broke 2880 wall this chip hunted me with for 3 days. So far i think this is my max until i hook up WC


Sup JSU this is edfx from EOCF. Long time no see
With your phasechange you should look atleast for 750 to get higher multy. The lower the timing the better. Some good bh-5 will do you good. Also look around here how to mount a phasechange to this cpu. They are realy fragile. Get one you won't be disapointed ,these cpu

[Unseen]

some new results from my 750.

[Spajky]

PS.: has anybody studied my modding proposals on those my previous posts or even tried some? (or everybody else is already on Holidays away ...)

[JSU]

This is with chiled air inside the box. It gets beter i broke 2880 wall this chip hunted me with for 3 days. So far i think this is my max until i hook up WC


Sup JSU this is edfx from EOCF. Long time no see
With your phasechange you should look atleast for 750 to get higher multy. The lower the timing the better. Some good bh-5 will do you good. Also look around here how to mount a phasechange to this cpu. They are realy fragile. Get one you won't be disapointed ,these cpu

Sounds good but what about the new wave of them? when is that comming?

[caater]

my initial results with pm 730 while i'm waiting p4c800 from RMA..

p4p800 deluxe (non-e) with latest p4p800se beta bios.
2x256 bh5 in pifast, 4x256 in superpi tests. both 1:1 2225 turbo PAT partially enabled..
dothan seems to hit the wall @ 2.7ghz with inbox cooling and first pair of ram craps out @ 265.. haven't tested the second pair properly yet.
i've done 3.3v direct vdimm mod also..

have to mod adapter now to fit my old dd maze wblock..

[_lochfrass_]

P-M 730, ASUS P4C800-E Deluxe, 4x 256M Infineon PC2700 (BH-6), VDIMM = 3,3V mod

[railer]

Sounds good but what about the new wave of them? when is that comming?

I think in 2006 1st or 2nd quater. There will be single and dual core Yonah. these will have 800fsb instead of current 533. Also they will have more improvements over existing Dothan. I seen a chart where Yonah will be 27w TDP and extra cool version of 17W TDP. Not sure if .65 nm will be used now just emagine how those will overclock

[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

[DaWaN]

my initial results with pm 730 while i'm waiting p4c800 from RMA..

p4p800 deluxe (non-e) with latest p4p800se beta bios.
2x256 bh5 in pifast, 4x256 in superpi tests. both 1:1 2225 turbo PAT partially enabled..
dothan seems to hit the wall @ 2.7ghz with inbox cooling and first pair of ram craps out @ 265.. haven't tested the second pair properly yet.
i've done 3.3v direct vdimm mod also..

have to mod adapter now to fit my old dd maze wblock..

Where did you connected the 3,3V on the mem? On a cap or directly on pin 7 ?

[caater]

Where did you connected the 3,3V on the mem? On a cap or directly on pin 7 ?

i did it like this:
http://www.xtremesystems.org/forums/...ad.php?t=29178
only the lower wire is needed actually. those others could help a bit.. but just a bit

[illidan]

I'm intersting in buying Dothan 750 and i855 mobo (or ASUS P4C800 and dothan adapter). So how much is proc and mobo? Thx guys.

[Mathias-K]

Banias > Dothan was not much of a change

OC-wise, it was quite a change. Banias chips have a hard time hitting anything higher than 2GHz while the Dothan chips of the japanese OC-kings are devastating SuperPI at almost 4.2GHz!

[Jericho]

OC-wise, it was quite a change. Banias chips have a hard time hitting anything higher than 2GHz while the Dothan chips of the japanese OC-kings are devastating SuperPI at almost 4.2GHz!

In a technical aspect it was'nt though.

Yonah will have more changes then tweaks

[jiang2005]

Any Body Can Help Me? I Have Been Suffered From That For Long Time.
My Condiction Is:
Pm 750(b1) / P4p800se / Ddr500 512*2 / 1009.004 Beta
Now I Can Only Go To 2.48g (207*12) Even When I Am Using Water Cooling. Temp.: Idle 36c, Full Load 46c.
I Am Using 400 Fbs Plug In.
I Tried Many Ways As Below Which Can Not Be Stable:
201*13, No Past
11*220, No Past (ram 1:1)
210*12, Go Into Winxp But Once Into Game, Restart.
211*12, Restart When Entering Winxp
I Also Tried 10*210 To Go Into Winxp, And Used Clockgen,
It Was Very Strange, I Could Go Up To 250, And Got 2.5g
But When I Go Into Games, I Am Moving Too Fast, Not Normal Speed.
I Think It Is Not A Good Way, So I Forget It.

My Question Is:
2.48 Is The Maximum Of My B1 Pm?
Anyway To Go Further?

[charlie]

Any Body Can Help Me? I Have Been Suffered From That For Long Time.
My Condiction Is:
Pm 750(b1) / P4p800se / Ddr500 512*2 / 1009.004 Beta
Now I Can Only Go To 2.48g (207*12) Even When I Am Using Water Cooling. Temp.: Idle 36c, Full Load 46c.
I Am Using 400 Fbs Plug In.
I Tried Many Ways As Below Which Can Not Be Stable:
201*13, No Past
11*220, No Past (ram 1:1)
210*12, Go Into Winxp But Once Into Game, Restart.
211*12, Restart When Entering Winxp
I Also Tried 10*210 To Go Into Winxp, And Used Clockgen,
It Was Very Strange, I Could Go Up To 250, And Got 2.5g
But When I Go Into Games, I Am Moving Too Fast, Not Normal Speed.
I Think It Is Not A Good Way, So I Forget It.

My Question Is:
2.48 Is The Maximum Of My B1 Pm?
Anyway To Go Further?

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

[wwwww]

4x agp does nothing like dropping 7k, but it could very well be a driver related problem.
when i first got my dothan, i slapped on a branspanking new win2k install and did some
benches.. superpi1m, 3dm, the works.. while superpi was about par, 3dm(2k1) was off
by a good few points, 5k iirc. so i asked a few friends, what an intel setup needs to get
the gfx flying (having done my last intel in pentium 90mhz times) ...
chipset drivers was what they told me (doh). in my case it worked wonders - should have
thought about that myself, but got carried away with excitement. swapping a now dead
9800xt with a 6800gt (including new driver install, ...) did show some differences, but
nothing like you experienced..

seeing the gt score as high as she does, i doubt its the agp-driver, but it might be
good checking that one out...covering all bases, so to speak.

btw what dfi board are you using? the pos i855 thing?

Thanks, yeah - the ct-479 didn't exist when I got it. Was this or the Aopen
I fiddled around in the bios and found when I set the video bios to be cachable and upped the agp app to 128MB the score went up alot, getting a nice 9.9k in fillrate and around 13.5k in 03 and 29.9k in 01. I shall break 30k soon... :P

thanks for your help

[runmc]

Well iam thinking about getting one of these babys but am not sure wether now is the time to get one. I guess that the 750 is the one i want. But is intel going to come out with dual core ones in the near future? Will they be reasonably priced? How much would i 750 normaly go for and where can i get one? What is the best mobo with agp, i guess its a asus with te adapter right? How do these things react to timings on ram? I would love to chill one of these things .

That about sums it up thanks alot guys.

I'm happy with my 740. I tried 730 and 750. The 740 was the best overclocker in my situation.
GPU needs much improving. I don't think I'll get much more out of this Dothan untill it gets some LN2 on it.

3DMark2001
3DMark2003
3DMark2005