Mobile Barton XP-M2500+ in a 8K3A+?

[MasterPooBaa]

Greetings guys and guyettes!
Ive got an old by current standards 8K3A+.

Course being an epox product there is absolutely nothing wrong with it and it provides flawless 24/7 operation.
The cpu i have though is not fast enough for my needs, and ive seen the current XP-M2500+ is an overclocking wonder! (and unlocked to boot)

Will this cpu work in my motherboard... given that my mobo can only do a minimum of 1.4v and the nominal voltage of the XP-M 2500+ is 1.25v?

Will it boot and be detected properly and just run at 1.4v?

thanx in advance
me.

[Gizmo]

Originally Posted by MasterPooBaa

Greetings guys and guyettes!
Ive got an old by current standards 8K3A+.

Course being an epox product there is absolutely nothing wrong with it and it provides flawless 24/7 operation.
The cpu i have though is not fast enough for my needs, and ive seen the current XP-M2500+ is an overclocking wonder! (and unlocked to boot)

Will this cpu work in my motherboard... given that my mobo can only do a minimum of 1.4v and the nominal voltage of the XP-M 2500+ is 1.25v?

Will it boot and be detected properly and just run at 1.4v?

thanx in advance
me.

I think you are refering to the info at NewEgg, yes? That info is wrong. The voltage for the XP-M2500+ is 1.45.

AFAIK , all of the Bartons (mobile or otherwise) come off the same wafer and are 'speed binned' to determine which chips will be marketed as what. This means that there is absolutely no reason that you can't run this chip at 1.65 volts, with the same power dissipation as a standard XP-2500+, but with MUCH better performance (exceeding even XP-3200+ at stock voltage).

[MasterPooBaa]

yes thats what i hope... i just ened to know if therea re any bios issues involved. Doesnt sound like it but ya never know...

[Gizmo]

I honestly can't answer that from experience. The few things that I have read on the web relating to bios issues indicate simply that the bios couldn't properly ID the chip, and so you had to go in and manually set the FSB and multiplier (which you plan on doing anyway, to overclock). I don't know if
the 8K3A has those issues or not.

[MasterPooBaa]

ok thats livable.... who really cares about a proper ID anyway LOL

the only other issue is if the higher multipliers are properly enabled on the 8K3A+.

as im pretty much limited to 166.7 fsb i need to be sure that i can access higher than 12.5.

12.5 x 166.7 = 2083Mhz which is nice, but 16 x 166.7 = 2666 would be far better!

[FluffyChicken]

The mobile chips are locked to a max multiplier set on the cpu.

You will have 11x as your maximum. to get higher yo'll need to modify the l6 bridges toenable the max you want

With a 166FSB I thick this will be upto 14x once modified. thjs can be changed on the fly in windows using the correct tools. even if thebios doesn't support it.

[MiGGinZ]

I have two and neither are locked to any maximum that I can see but I havent used over 16.

and also the Mobiles are meant for 266fsb and the 2500+ has a multi of 14.

and they absoulutely ROCK.

[MasterPooBaa]

Originally Posted by MiGGinZ

I have two and neither are locked to any maximum that I can see but I havent used over 16.

and also the Mobiles are meant for 266fsb and the 2500+ has a multi of 14.

and they absoulutely ROCK.

Indeed. They are listed on newegg as having the 266mhz bus, but running at 1.83Ghz.
Something is a little wrong there i think.
on the 133(266) bus you can only have 1800Mhz (13.5x multiplier) or 1866Mhz (14x multiplier).

Im assuming from your statements its 14x...

so 14 is still nice with 166.7 fsb.
im getting one in a week or so... so ill keep you all updated.

[MiGGinZ]

yup, its 1866mhz, when you first put it in though it boots at 600mhz.

[MasterPooBaa]

Originally Posted by MiGGinZ

yup, its 1866mhz, when you first put it in though it boots at 600mhz.

WOOT. 600Mhz... i could run fanless!
wont stay at 600 for long LOL.

enermax 550W + 8k3a+ + XP-M 2500+ + MCX-462 = whole lotta fun.

[jklhill]

Originally Posted by MasterPooBaa

Indeed. They are listed on newegg as having the 266mhz bus, but running at 1.83Ghz.
Something is a little wrong there i think.
on the 133(266) bus you can only have 1800Mhz (13.5x multiplier) or 1866Mhz (14x multiplier).

Im assuming from your statements its 14x...

so 14 is still nice with 166.7 fsb.
im getting one in a week or so... so ill keep you all updated.

Yes, please do let us know how it goes.

[Stephen Soulsby]

I bought one of those from Newegg (listed as a 266fsb). The CPU is marked as a 2400+, but it's a barton that is supposed to run at 13.5x133. On AMD's PR scale the 333fsb get's 100 points so that's why it isn't listed as a 2500+. I have mine running at 2.4Ghz (12x200) on 1.65v and a Cooler Master HHC-001 fan. It's been stable so far. Highly recomended.

[T-boz]

I cant get mine to boot at 13* 200, if i try it restarts at 600MHz, But i can run it at 12*220 and 1.8 Vcore. Is it my 8RDA3I thats is crap ? And allso everything over 220fsb will freeze it, even at 9 multi
Cpu is a 2500 mobile

[MasterPooBaa]

Simalar problem to me? somehow it doesnt like going over 12.5x even though default is 14x...
When i first booted up it went to the 6x multiplier too.

as for going over 220fsb one would surmine your having a fsb/ram/northbridge voltage/cooling issue, not a cpu one.

even so, 12x220 give you a pretty impressive 2640Mhz!
hard to be upset with that.