Will AnandTech have a Dothan review on Monday? UPDATE! Anand Speaks!

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Pandaren

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Sep 13, 2003
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Dothan is an improved Pentium M processor built on Intel's 90nm process. It runs at up to 2.0 GHz with a TDP of 21 Watts. The only other things known about it are that it has a 2M L2 cache, some extra performance tweaks compared to the Banias Pentium M, and a die size of 83mm2.
 
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InlineFive

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Sep 20, 2003
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Since you seem well informed Pandaren do you know if this is the core that Intel might be planning to use in desktop shipments?
 
GTaudiophile

GTaudiophile

Lifer
Oct 24, 2000
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I certainly enjoy the Pentium M 1.4Ghz in my HP ZT3000 laptop. Just as snappy as my P4 2.0A.
 
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Acanthus

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Say hello to an ice cold high performance desktop CPU in the near future :)

At 21w you could passively cool it pretty easily.
 
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ForceCalibur

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Mar 20, 2004
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Originally posted by: PorBleemo
Since you seem well informed Pandaren do you know if this is the core that Intel might be planning to use in desktop shipments?
Click to expand...


Yes. Funny how it was always Desktop CPU -> Laptop. Now its other way around :)
 
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OddTSi

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Feb 14, 2003
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Wow, 21W. Even if they raise the clock to bring it to the desktop, how much hotter would it get, 30W? That's ice cold compared to the current P4s/A64s which at at 89W+.
 
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Anand Lal Shimpi

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Oct 9, 1999
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Here's the situation: I have CPUs, and a notebook that will run them. Unfortunately they are engineering samples and thus have no default clock multiplier other than 6x, so they all run at 600MHz right now. I'm trying to find a good way to hack speedstep to force some multipliers, but so far no luck.

I've spent a little time with the architecture of Dothan and it is quite interesting. We will definitely have Dothan notebook reviews in the coming weeks, but unless I can get these chips to run at their real clock speeds there won't be anything up for Monday :(

Take care,
Anand
 
DannyBoy

DannyBoy

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Nov 27, 2002
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He spoke :Q

Cheers for the heads up Anand, i'm sure anyone knowledgeable in that area here, would be more than happy to help you try to find a way to change the multipliers ;)

Dan
 
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Acanthus

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Aug 28, 2001
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Originally posted by: Anand Lal Shimpi
Here's the situation: I have CPUs, and a notebook that will run them. Unfortunately they are engineering samples and thus have no default clock multiplier other than 6x, so they all run at 600MHz right now. I'm trying to find a good way to hack speedstep to force some multipliers, but so far no luck.

I've spent a little time with the architecture of Dothan and it is quite interesting. We will definitely have Dothan notebook reviews in the coming weeks, but unless I can get these chips to run at their real clock speeds there won't be anything up for Monday :(

Take care,
Anand
Click to expand...

Anand if the pin layout is the same, have you guys attempted the "wire trick"

You can unlock all of the multipliers on S478 cpus by bridging 4 specific pins on the P4 (i have never actually done this).

I believe there is a guide at overclockers.com.

Edit: correction, that was for default voltage increases, not multiplier, i was mistaken.
 
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manko

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May 27, 2001
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Why would Intel give out engineering samples without any instructions or means to test them at the speeds of the retail chips? That's bizzare.

I hope you manage to work it out, Anand. I always look forward to the informative AT reviews, and I'm in the market for a notebook now. I've been waiting since December for the Dothans to hit the market before making a purchase.
 
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Anand Lal Shimpi

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Oct 9, 1999
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The pinout for Banias/Dothan is different than the Pentium 4 M.

Intel didn't send us the chips, we got them elsewhere :) Intel doesn't send out mobile chips, they usually work with OEMs to ship out a laptop. I didn't expect to be done with finals this soon so I didn't schedule it ahead of time, this was very last minute.
 
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InlineFive

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Sep 20, 2003
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I'm looking forward to some more performance information soon. I wonder if Intel might use a SpeedStep stripped variant of this for new desktop chips?

And Panderan, you need to put the mandatory "Anand Speaks!" in your thread title. ;)

-Por
 
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manko

Golden Member
May 27, 2001
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Originally posted by: Anand Lal Shimpi
Intel didn't send us the chips, we got them elsewhere :) Intel doesn't send out mobile chips, they usually work with OEMs to ship out a laptop.
Click to expand...

Ah, I see. ;)

Well, I hope you can work something out. I'm eager to read what you have to say about Dothan.
 
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Pandaren

Golden Member
Sep 13, 2003
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Thanks for the update Anand :)

It would be interesting to compare Banias and Dothan at 600 MHz to get some sense of how much improvement per clock Dothan gets. I know that on my T40 I can lock the CPU speed at 600 MHz by setting the CPU speed in IBM's battery maximizer applet to "very slow."

Por - updated the thread title as requested!

Originally posted by: Anand Lal Shimpi
Here's the situation: I have CPUs, and a notebook that will run them. Unfortunately they are engineering samples and thus have no default clock multiplier other than 6x, so they all run at 600MHz right now. I'm trying to find a good way to hack speedstep to force some multipliers, but so far no luck.

I've spent a little time with the architecture of Dothan and it is quite interesting. We will definitely have Dothan notebook reviews in the coming weeks, but unless I can get these chips to run at their real clock speeds there won't be anything up for Monday :(

Take care,
Anand
Click to expand...
 
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Gagabiji

Golden Member
Oct 1, 2003
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Originally posted by: DannyBoy
He spoke :Q

Cheers for the heads up Anand, i'm sure anyone knowledgeable in that area here, would be more than happy to help you try to find a way to change the multipliers ;)

Dan
Click to expand...

Especially if we could get sent one of the "samples" to work on. *hint* *hint* ;)
 
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