mobile bartons

[bob5568]

Hi all, while several folks here have written about the mobile verison of these chips, I attempted to research what the heck this chip actually was and found very little in the press.

There is one article on this site that describes the value of the chip when used in a desktop pc for underclocking to save power.

Yet, reading that article, and the posts here, and from my recent experience, it appears the XP-M 2400+ that I recently bought is a full fledged Barton processor with its multiplier unlocked, some powernow extensions added, identical transistor counts, identical cache, all instuction sets otherwise provided in the standard Bartons, and the low power draw comes as a gimme, setting this up as the overclocker dream.

It feels like I must be wrong, perhaps this chip has some downside...or maybe folks just aren't interested in overclocking a 32bit processor nowadays? Anyway, having a low power draw in an unlock cpu gets me pretty interested...first time I've been really interested in o'clocking since the celeron 300A.

I'm running this chip on the ASUS A7N8X-X, with vcore at 1.525v...which is the lowest I've been able to reach, 11x200, mbm temps are 30C idle, peak ever seen has been 47C under load. Rock solid, perky, and low cost.

Please comment regarding how identical the xp-m barton is to the standard xp barton.

Also interested in how the heck a low power version of this chip could have been manufactured.

Bob B

 

[smithy5]

You'll probably find that there was tons written about them, but its been about a year if not more. I'm still running one in my everyday pc and another in my htpc, but I think most people on these boards have moved on the to the amd 64 chips.

Even with a really good overclock on a barton, a minor overclocked 64 will beat it pretty well.

Other than that, you can search for the particular chip ie mobile 2400 - 2600 and you should find lots of information

 

[bob5568]

Thanks for the comments, I've been out of touch with the talk so I missed the boat back when it was the buzz.

B

 

[Avalon]

There was definitely quite a bit of buzz about these chips 6+ months back. I remember it quite well. I bought 8 of those chips. Shim used to think I was crazy
They were excellent value overclockers. I'm running my last 35w 2400+ at 2.3ghz at 1.55v right now.
It's nice, but nowadays it's time for the A64.

Differences between a mobile barton and desktop barton...

1) The mobile is unlocked
2) At it's default speed and voltage, the mobile outputs less heat
3) The mobile runs at a default FSB of 133mhz (DDR266) vs 166mhz(DDR333) of desktop bartons
4) The mobiles are OEM only

Same cache and everything else, though.

 

[miketheidiot]

they are very fast if you can get a good OC (2.4+ should be easy) They fly. Probably equal to a 1.8 or 2.0 amd64, for under $200 for proc and mobo. You'll want to clock up the FSB high though, over 200, you really start to fly, so you will/may have to spend extra on some ram that will reach 225 fsb or more, and a decent cooler. I would still recomment one though.

 

[BlueWeasel]

I :heart: my XP-M 2600+ currently running at 11.5x215=~2.5Ghz.

 

[Netopia]

They are astounding! I used to buy the 2500+'s, but now I just buy the 2200+'s because they all seem to be the same chip anyway. I've not gotten one (or had any friends get them) of the 35 Watt variety that wouldn't do 2.3GHz without even bumping up the voltage! I imagine that most will do 2.5GHz plus. They really are an absolute STEAL for the money, but I'm thinking that most people want to spend money on newer stuff. The thing is, that a cheap nForce2 Mobo, the CPU, a good heatsink and 256MB of HIGHSPEED RAM can be had for under $200. That's a FINE upgrade to MANY people's computers and if you can run the RAM in the 230-240 MHz range, you've got a SMOKIN' little box for the money!

Joe

 

[pray4mojo]

Could someone explain how the stepping affects the overclock?

 

[ts3433]

Originally posted by: pray4mojo
Could someone explain how the stepping affects the overclock?

I would imagine it has to do with how the chip can handle certain clockspeeds at certain voltages. It could also affect how hot or cool the processor runs compared to others.


I like my mobile 2400+.

 

[bunnyfubbles]

Yeah, unless you're on an extremely strict budget, there is very little reason not to go with an A64 solution over AXP.

 

[MyGrain]

I've a machine with an athlon xp 2000 in it { ECS board 57s5a pro} and was llooking at upgrading it and just in the last few days have read about the mobile's and how they work. Looking at a 3000 but do I need to go that high? Will, the mobile 3000 go much higher than a mobile 2400? A few bucks to sqeez some life outa some older boxes is worth it...to me. :-}

 

[chinkgai]

Originally posted by: MyGrain
I've a machine with an athlon xp 2000 in it { ECS board 57s5a pro} and was llooking at upgrading it and just in the last few days have read about the mobile's and how they work. Looking at a 3000 but do I need to go that high? Will, the mobile 3000 go much higher than a mobile 2400? A few bucks to sqeez some life outa some older boxes is worth it...to me. :-}

read netopia's post above

 

[MyGrain]

Originally posted by: chinkgai

Originally posted by: MyGrain
I've a machine with an athlon xp 2000 in it { ECS board 57s5a pro} and was llooking at upgrading it and just in the last few days have read about the mobile's and how they work. Looking at a 3000 but do I need to go that high? Will, the mobile 3000 go much higher than a mobile 2400? A few bucks to sqeez some life outa some older boxes is worth it...to me. :-}

read netopia's post above

Oh, I did. Is saying they are all the same telling me a mobile 3000 is barking up the wrong tree , cause a 2400 will do the same?

Thanks for any guiding I can get!

 

[chinkgai]

basically.

my 35w 2400+ did exactly the same as my 45w 2600+, both topping out at 2.6 ghz (both with IQYHA stepping though)

 

[MyGrain]

cool chinkgai.

I'll save a few bucks and go with a 2400 or 2600..I don't think I'll go crazy OCing...maybe just a bit. I have read and read some more about overclocking but have dabbled in i it very little. Chicken, i guess.

We'll see!

BTW, what's IQYHA?

 

[bob5568]

Hi all, I just took the next step...been running this xp-m 2400+ at 2200 (11x200) for 4 days now, rock solid. Took it up to 11.5x200. Had to bump the vcore up, but only to 6.5v...still practically near the rated vcore for the standard barton chip. Sweet. running great at 2300. mbm reports 32C at idle, just over 50C at worst case loaded condition.

I do understand folks saying the 64bit machine is the way to go, but a budget is very much my story. haven't upgraded anything for years. Got a video card for xmas (radeon 9800 pro), which made me want more cpu...but very little $. got an asus A7N8X-x for 45$, and this cpu for $88. And added nearly a ghz of clock speed to my box.

Happy!

Bob

 

[TheStu]

IQYHA is the coding used by AMD to indicate the stepping.... not entirely sure what that means, but it isn't an acronym or anything if that is what you are getting at.....

 

[Zebo]

Yup probably the best bang for the buck of all time. Several things make it attractive. First you have outstanding motherboards, NF2 w soundstorm and even very good budget boards with NF2 untra/NF2 IGP which can be had ~$60 mark. Second it's a great "learning" chip being multiplier is unlocked. Finally price/performance at $65-$95 nothing can touch them except $44 tbred (1700's) which are no more. You can have a PR3500+ machine including ram for less than a 3200 northwood/presscot costs!

There's still definity life left...sometimes I wish I never made the 64bit move since it's been plaged with weak boards and ever changing sockets and chipsets...

PS lots of stuff was written! techreport, hexus, bitech and many other mainstream review sites did expos on the mobile XP's... and the enthusiast forums were RED HOT a year ago until just about 6 mo ago...

 

[Avalon]

Originally posted by: chinkgai
basically.

my 35w 2400+ did exactly the same as my 45w 2600+, both topping out at 2.6 ghz (both with IQYHA stepping though)

I can confirm this as well. All my IQYHA stepping 35w 2400+ chips did 2.6 out of the box, the same as my 45w 2600+ AQYHA. Nowadays with my eVGA 6800NU, I cannot overclock nearly as high. Both my CPU and GPU overclocks are severely limited due to my PSU's weak 12v rail. I can barely hit past 2.4 on my chip now, and my GPU won't overclock much past 350mhz either. I know it can do more, because my core temps are cool, idling in the 50s and maxing in the 60s. Plus, I get no artifacts. These were excellent, excellent chips. They are still great if you've only got $150 for a motherboard and cpu, but if you can add $50 more to that budget, you're in the A64/P4 zone.

 

[Shimmishim]

after giving up on skt 754 recently, i'm running my old mobile barton 2400+ @ 2.9 ghz under my prommy phase change.

it's plenty fast for the games i want to play and should hold me over until sli becomes more readily available in the next few months.

 

[BlindBartimaeus]

Depends on how cheap you want to go but these make a great budget box and quite honestly will do more than 98 percent of us really need although I have a 3000+A64 @ 2.48 gig and I kinda like it too. But certainly it comes with a pricetag too.

 

[bob5568]

I wish now that I'd been reading this forum back when much was being discussed. Is the general consensus that the mobile barton is just a cherry picked chip from the general barton production? Is that why it runs more efficiently...just the performance on the efficient side of the process variation?

Do we think if the multiplier was locked the xpmobile 2400+ would be sold as a normal xp 3200+? In other experiences it didin't seem like AMD was building much oclocking overhead into its chips.

Bob

 

[BlueWeasel]

Basically, yes, a mobile chip is basically the best of the Barton production on which the multiplier has not been factory locked. That effectively gives you the most OC'ing room, as you've already got a great core, low voltage chip, but you've also got the ability to adjust the multiplier as needed.

 

[maluckey]

I have had three XP-M 2400+ and the SLOWEST was P95 stable at 2.6ghz on air cooling. I still run one for fun in the second rig in my sig.

 

[MyGrain]

Originally posted by: TheStu
IQYHA is the coding used by AMD to indicate the stepping.... not entirely sure what that means, but it isn't an acronym or anything if that is what you are getting at.....

Yeah...that's what I was wondering. I actual;ly figured that out after I posted...kept reading.

Thanks though~!