ERUs AMD ATHLON XP-M 2500+ SKT-A OEM BARTON (Mobile)Unlocked

[ERU]

We all seem to be talking about the 2500+XP-M CPUs, so i though i tell you all about my success with one. If someone doesnt already know about them they are just laptop CPUs that have been discovered as good overclocking CPUs in a desktop. Not a new CPU model as some people have suggested.
I was posting in this thread but thought it might be better to move it over here as its a more relevant place.

I have put it in my rig currently set to 200*12 with 1.75 vcore.
I havent got it prime95 stable with that yet (although at first i did as it ran for ages before an error), although it seems to work fine otherwise. I did have my fan on a low setting so I am currently leaving it on overnight with case sides off and the fans going like the clappers to see if that was why. Been running for 10mins so far with no errors so fingers crossed .
Current Temps whilst running are now 27C mobo/47C CPU - which is a bit better then before.

On another note i hear someone has reached 3ghz with a prommy now!

[DR]

Let us know more

[bigZ]

I've got one of these too, and on the whole I'm fairly pleased... I'm more disappointed with my other components than I am with my Mobile Barton.

I'm having problems with my power supply... it's in need of a +3.3v mod and also a +12v mod. the lines are just too low. To get the max out of this CPU, I'm going to need 3.5v and 12.4v respectively.



My 3.3v line sometimes goes as low as 3.2v and my 12v line goes as low as 11.67v, both way too low for high overclocks combined with stability. I'm sourcing another PSU as we speak, preferably one with adjustable POTs so I can adjust my 3.3v and 12v lines without having to mod the power supply. I'll mod it if I don't get good enough lines. I'm also considering the vDIMM mod on my NF7-S to give myself more chance of hitting say 235x11.5 3d stable.

I'm COMPLETELY prime stable at 2620Mhz at the moment with 2.075v actual vCore.



Anyway, I'm being limited by my power supply it seems, because I can't get to the front side bus's that I could achieve with both my 2800+ and my 2500+. But, I'm stable enough for sandra and superpi at 2706Mhz




and it's 3dMark2001 stable at 2680Mhz, which has brought me the current top score for an Athlon XP & Radeon 9600 series combination.

16902 - http://service.futuremark.com/compare?2k1=7595285

Sorry for stealing your thread as such, but I feel it's better to keep all of the mobile results together rather than splitting them into millions of individual threads

[schrickvr6]

i see your using an nf7-s,can you use 9.5x - 10.5x multis with cpu interface enabled above 226mhz fsb?

[bigZ]

my ram is good to 240 @ 2.96v 2-2-2-6 with the 8x multi for superpi... my lines are the problem, 3.3v is way too low (where vDIMM comes from), as is my 12v line (where vCore comes from).

My board doesn't like the D10 bios, so I can't make use of the 10x mutli, but there's no point using the D10 bios because I'd lose a lot of speed to drop down to the 10x multi, Ideally I need better lines to get 11.5x235 stable. I've found this d16 beta bios that I found very fast in the multi range that I'm using (11.5-12.5).

All of my screenshots are with CPUinterface enabled

[Allen]

I know CPU-Z is showing your voltage as 2.112v, so I take it it's 2.1v in the BIOS?

If so, then how comes my A7N8X-E only goes up to 1.9v? Surely Asus would know overclockers would need more volts... Is there no way of getting more out of it or am I gonna have to look at changing my mobo to get the best out of this chip?

[bigZ]

that voltage is bench voltage, 2.15v (8rdavcore picks that up as 2.125v though, and picks 2.1v up as 2.075v), and I'm on water, so could probably increase the voltage much higher than that if it wasn't for OVP. My temps are around +10/11'C full load on ambient

The prime screenie is the one that is 100% stable the other screenshots are benchmark stable. 225x12 kicks out of car high (3dmark01) within 10 seconds which means that my memory is not getting enough voltage, this is down to my 3.3v line being so low

[schrickvr6]

big al you should be fine as the asus boards overvolt and the lines are stable compared to an nf7-s besides your chip might not even like 1.85v+.

bigz i don't get on with the modded d10 bios' either,what i'd like ideally is a d10 bios with the revised dram timings that came with d14 or whatever it was

[Allen]

Hmm, I'm really a n00b at this as most of what you just said is double dutch to me! And since I haven't got water cooling I'm not expetcing to get those high results.

Still, as I've said before, I'll be happy with any increase over my 1.4GHz!

[bigZ]

My board really gets on well with D22, but unfortunately my XP-M won't post with the D22 beta I was using... I might try some other bios' at some point, I just came to use d16, because a number of people I'd seen using XP-M's were running that bios. I then found a beta which I've found to be faster clock for clock than abit's own bios.

[spazman]

damn i want one :\

[CrapshoT]

the mobile xp-ms are the best hand picked barton cores specially for the mobile trade as they run at 1.45v which decreases the heat etc needed for laptop use so being able to put more volts through them should give you a better over-clock plus theyre only a few £s more than 2500xp bartons anyway the worst overclock ive heard of a xp-m so far is 2.4 g and thats on air

[Allen]

Just got it delivered... was quite surprised that it had no static protection, was in a little plastic tray and wrapped in bubble wrap. Is that normal? I would of thought that even OEM chips would've been better protected.

Anyway, stepping is:

AXMH2500FQQ4C 2343672240417
AQZFA 0304VPMW

Wanna bunk college tonight now to test it out!

[dpm]

Yeah, mine came packaged the same way. Not impressed.

Now all I'm waiting for is the new RAM...

[Allen]

Yeah, mine came packaged the same way. Not impressed.

Well, I'm not the only one obviously, might take a trip to their forums later...

I hope for their sake my chip works!!

[BUFF]

That's the way that oem processors come.
btw, another store has just got some mobile chips in but got their stepping codes wrong - theirs are 1.65V chips rather than 1.45v.
Obviously the 1.45V are what you want so be careful.