I'm build a "portable" computer and I need a mobile XP for my Chaintech 7NIL1 nForce 2 ultra 400 mobo. It doesn't have voltage control or multiplier adjustment, so I need one that I can drop in, fire it up on the 400MHz bus at stock voltage. My main computer has the mobile XP2500@2.2 doing it fine. But its a 45W and I would like a 35 watter. Any such animal?
What mobile Athlon XP will run on 400Mhz FSB on stock voltage?
- Thread starter KDOG
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BlueWeasel
Lifer
- Jun 2, 2000
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While the mobiles are great OC'ers, I doubt you'll get one that will do 200 FSB using the default voltage of 1.45v. It's only a slight increase, but most require 1.60 to 1.65v to run stable at 200 FSB.
Fern
Elite Member
- Sep 30, 2003
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Just curious, and I can't remember, nor am I near my rig in my sig (or I'd clear the cmos to find the answer)
But since the mobile chip is listed as *unknown* by a desktop mobo, what is the vcore your board assigns it when first installed?
I'm thinking if it defaults to something higher than 1.45, say 1.65, you may not have a problem.
I thought ALL mobiles are seen at a minimum multiplier when put into a board that doesn't support them, so they'll run like 5x or 6x multiplier by default if stuck into a board without multiplier control.
In that case, it doesn't matter which one you get, I'd wager they'll ALL do 200 x 6 at default voltage, given that's lower than the rated speed. Get the cheapest one that is ACTUALLY a socket A. Note that there is at least one mobile that sold on newegg that is some funky laptop socket, and not a socket A, I think it's the 2000+.
In that case, it doesn't matter which one you get, I'd wager they'll ALL do 200 x 6 at default voltage, given that's lower than the rated speed. Get the cheapest one that is ACTUALLY a socket A. Note that there is at least one mobile that sold on newegg that is some funky laptop socket, and not a socket A, I think it's the 2000+.
All mobiles default to 600x10, even on boards with multiplier adjustments. If you can't change the multiplier on the Chaintech you'll be stuck in the slow lane. As for 200 FSB @ 1.45, I "auditioned" 3 XP mobiles before settling on the one in my sig. They all could do 200 FSB at stock voltages. This one actually runs stable at 200x10 @ 1.4v
Mine too, I'm running with 2.3 (11.5x200) at 1.65V right now, runs pretty good, but for some reason when I put it at 2.4, it needs 1.8V and the temps SKYROCKET. I guess 2.3 is its limit. Oh well. Still darn good....
So I guess I gotta plop a regular barton 2500 in that other comp. The thing is I have an XP 2100 in there right now running @ 1958 on a 150 Mhz bus. The one saving grace about that mobo is that I can lock the AGP at 66mhz... I don't know If I should spend the money ....
UPDATE: I have it running at 160Mhz FSB now, stable too. Just won't do 166 though, it'll restart. Running at 2.09Ghz Not too bad. Maybe I'll just hold on to this and see how it goes....
I'm a little confused. Won't a mobile XP default to the "recommended" mulitplier if no multiplier adjustment is availabe? I thought I read that somewhere....Seems kinda strange that it would go straight to 600mhz...
Kinda strange, but it does.
Pop one in a motherboard and it comes up as 6 x 100 = 600MHz
I did it last night. Sure after I set the multiplier (and voltage) it was fine at 2400 MHz, but default, before setting multiplier, it showed up at 600MHz.
Pop one in a motherboard and it comes up as 6 x 100 = 600MHz
I did it last night. Sure after I set the multiplier (and voltage) it was fine at 2400 MHz, but default, before setting multiplier, it showed up at 600MHz.
Probably because its a mobile cpu...not intended to be in a desktop motherboard...so the speed of the chip is not detected.
oops...double post
Anywho, for 35w cpu running at 400fsb stock vcore...best bet would be a 2400+ IQYHA
Anywho, for 35w cpu running at 400fsb stock vcore...best bet would be a 2400+ IQYHA
Fern
Elite Member
- Sep 30, 2003
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It's the actually motherboard that defaults. Since the mobile chip is not designed for a desktop mobo, the mobo can't "read" any default settings off the cpu. So the motherboard uses it's own default settings. Which are the lowest possible FSB and multi to ensure that it will boot- and if you can boot, you can always get in there to adjust it back up. If it started too high abd you couldn't boot, you'd be screwed.
Fern
Becasue of my temporary poor heatsink (stock HSF) situation on a new rig, I am writing from a 2700+ tbred, underclocked at 8x200, undervolted at 1.25, 8hrs Prime stable, 1:1 with 512 PC3200. If you look at http://www.silentpcreview.com/article102-page1.html , it has a whole chart for underclocking, only goes up to 1.667 GHz, but you can get an idea where your happy medium is.
So you could lower the multi is what I'm saying.
The weird thing is my temps never budge from 42C in Sandra, whether running Prime95 or at idle.
So you could lower the multi is what I'm saying.
The weird thing is my temps never budge from 42C in Sandra, whether running Prime95 or at idle.
DANG!!! Its true. I just took out the mobile 2500 from my main system and tried it on the chaintech.... no dice, I COULD get it to 1.2ghz because of putting the FSB to 200 (6x200), but thats still pathetic and I was getting a windows error on boot up. Drats. My XP2100 that I have in there now, however, is running solid at 2.09 Ghz on a 160FSB. Again, hooray for AGP lock. its a DUTC version, so at least I got that going for me...
its a DUTC version, so at least I got that going for me...TRENDING THREADS
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