Just got my Mobile Barton 2500+

[Elcs]

AXMN2500FQQ4C Z343672240379
AQZFA 0340VPMW

Once Im finished my daily maintenance + breakfast, Ill pop it in and fire it up.

Mobile Barton 2500+ (see above for numbers)
ABIT NF7-S Rev 2.0 (some early bios, 14/05/03)
2x512mb Twinmos PC3200 (CH-5 chips, did 210mhz fsb 1:1 with my 1700+)

Preliminary results dont look so amazing to be honest.

System is up and running 200x12, 1.74-1.76Vcore actual under load i see an occaisional 1.73V which concerns me slightly. Just threw X2: The Threat on for an hour, maxxed all the options to see if I could get the CPU to do some work.... 42C whilst playing, 39C as Im typing now.

This thing hates Prime95.... kicked out in 3 minutes which i found to be a tad strange. My 1700+ didnt like Prime either but was stable in everything else I done. PiFast kicks out early as well. Leads me to believe this processor doesnt like 200 fsb which is a shame.

It likes X2: The Threat at 200x12, it also likes SuperPi.... ie. it doesnt seem to crash out.

210x12 refuses to boot. 210x11.5 crashes out on SuperPi and reboots.

Seems as though Ive hit a wall of either 200 fsb or 2400mhz. Im at my max for voltage, I cant afford to lose the chip so im erring on the side of caution.

Any thoughts?

 

[Falloutboy]

if your board supports it most chips still Requier 1.8-1.85 to make 2.5+

 

[DAPUNISHER]

Yeah, give it more juice for testing, I'd forget I cranked my Vcore to 1.85v**max on my Soltek nF2** and end up running it that way for a day or more at a time but it never reduced the overclockability or anything. If that Barton is like mine and some others I've seen then the ceiling isn't far away though. Mine did 2.3ghz@*1.632v, 2.35ghz@*1.71v, 2.43ghz@*1.825v I was bummed it peaked so fast after raising voltage, hopefully those mobiles are better.


*actual voltage under SETI load.

 

[pillage2001]

All the better overclockers are on the IQYFA stepping though. I'm wondering when newegg would start carrying them again.

 

[hytek369]

Originally posted by: DAPUNISHER
Yeah, give it more juice for testing, I'd forget I cranked my Vcore to 1.85v**max on my Soltek nF2** and end up running it that way for a day or more at a time but it never reduced the overclockability or anything. If that Barton is like mine and some others I've seen then the ceiling isn't far away though. Mine did 2.3ghz@*1.632v, 2.35ghz@*1.71v, 2.43ghz@*1.825v I was bummed it peaked so fast after raising voltage, hopefully those mobiles are better.


*actual voltage under SETI load.

nice chip, what is your stepping?

 

[Soulkeeper]

Originally posted by: Falloutboy525
if your board supports it most chips still Requier 1.8-1.85 to make 2.5+

this is dangerous

i was able to get a few t-bred and barton chips to the 2.4-2.5ghz range using that kind of voltage

the thing is tho they are all fryed now

it ain't worth it (no matter what cooling you are using)

if you can't hit comfortable overclocked at 1.74v with a 1.25v chip then don't bother with anymore voltage unless you got another chip coming in the mail or something

 

[RussianSensation]

And actually I am planning to get one of the Mobile Barton chips and they are rated at 1.45 VCore not 1.25 that's an error on the 2500+ chip. I am assuming if the default is 1.45, it would be safe to increase up to 1.70? I want it to last at least 4 years.

 

[DAPUNISHER]

Originally posted by: hytek369

Originally posted by: DAPUNISHER
Yeah, give it more juice for testing, I'd forget I cranked my Vcore to 1.85v**max on my Soltek nF2** and end up running it that way for a day or more at a time but it never reduced the overclockability or anything. If that Barton is like mine and some others I've seen then the ceiling isn't far away though. Mine did 2.3ghz@*1.632v, 2.35ghz@*1.71v, 2.43ghz@*1.825v I was bummed it peaked so fast after raising voltage, hopefully those mobiles are better.


*actual voltage under SETI load.

nice chip, what is your stepping?

It was a AQXDA 0315WPJW *I always say it's a week 13 but I just looked at a pic I took of it when I was selling it and it's week 15

 

[rancherlee]

The mobile chips have the same core as desktop chips, they are just the chips that would run there speed with the lowest voltage. 1.9V should still be plenty safe if you can keep it under 50*C on air.

 

[PCBliss]

Originally posted by: Soulkeeper

Originally posted by: Falloutboy525
if your board supports it most chips still Requier 1.8-1.85 to make 2.5+

this is dangerous

Are you kidding me? 1.8-1.85 is well within spec for a barton... Run 1.95 24/7 if you want, just make sure your temps are fine and you are set

 

[Avalon]

I was reading about this on amdmb.com, and decided to order one. Newegg won't get any new shipments until the 24th the earliest, so I tried to find some other retailer selling it, and sure enough there is one, for those of you who don't want to wait for newegg. Ewiz.com is selling them for $98 including free shipping. Shipping wont be as quick as newegg, but these guys are pretty reliable regardless. Again, it's if you don't want to wait. If Newegg has run dry on the IXXXX steppings, I'm sure Ewiz would still have them. I'm not sure when I'll get mine in...hopefully this Friday, and I'll let you know what stepping it is. I doubt I'm actually going to use the chip, I may just test it and then sell it, since I don't really need it.

 

[PCBliss]

My mobile 2500+ just arrived from newegg today, but i havent opened it yet. Ill let you know what the stepping is... i hope its the IQYFA. probably not though

 

[PCBliss]

I got a IQZFA... are these any good?

 

[xenolith]

Originally posted by: Elcs
AXMN2500FQQ4C Z343672240379
AQZFA 0340VPMW

210x12 refuses to boot. 210x11.5 crashes out on SuperPi and reboots.

Seems as though Ive hit a wall of either 200 fsb or 2400mhz. Im at my max for voltage, I cant afford to lose the chip so im erring on the side of caution.

Any thoughts?

I've read that some mobos need the L12 pin-mod to get the XP-m higher than 200Mhz fsb, particularly your mobo. This is because nforce2 motherboards are tweaked for at least 166 fsb cpu's and the XP-m's are detected at 133 fsb.

For the L12 pin-mod, go here and select 166 mhz fsb from the fsb selection drop-down menu.

 

[Avalon]

Never heard of the IQZFA. The IQYFA is supposed to be the gold mine, but generally from what I've seen is that as long as you've got an IXXXX stepping, you've got excellent chances to reach 2400 mhz and beyond. Also, the IQXFA is supposed to be good too...I think...lol

 

[smokedturkey]

yes, IQZFA... just got my Barton from Newegg with this stepping. We'll see how it goes, MB doesn't support changing multiplier

 

[PCBliss]

I wonder if it will overclock better than my AQXEA0334spmw

 

[Elcs]

Originally posted by: xenolith

I've read that some mobos need the L12 pin-mod to get the XP-m higher than 200Mhz fsb, particularly your mobo. This is because nforce2 motherboards are tweaked for at least 166 fsb cpu's and the XP-m's are detected at 133 fsb.

For the L12 pin-mod, go here and select 166 mhz fsb from the fsb selection drop-down menu.

At the minute, its rock solid at 200x11.5 and Im quite happy with it sitting there at the minute. My old T'Bred had no problems with 210 mhz fsb and thats a 133 fsb proc. Also, my Mobile Barton is detected as Unknown CPU 600 mhz (100x6).... like many others Ive seen on the boards.

 

[Tiorapatea]

Hmmm, my new XP-M 2500+ is AXMH2500FQQ4C AQZFA 0340VPAW. Looks unnervingly similar to yours, Elcs. I won't be able to use it for a while, anyway, so maybe I'll put it on Ebay. Mind you, 11.5x200 is not too shabby.

Any issues with the proc not being identified? I seem to have posted this question in about twelve thousand different threads so sorry to bore everybody but I keep finding a more apposite thread than the last. So my question is, might certain features such as full SSE extensions not be utilised as a result of the motherboard's failure to know for sure that they are there?

 

[Avalon]

So my question is, might certain features such as full SSE extensions not be utilised as a result of the motherboard's failure to know for sure that they are there?

Good point...lol
Maybe someone will be able to bring this to light
I found out this morning that ewiz canceled my mobile 2500+ order because they were out of stock
I'm pretty pissed off...they show it as in stock, so what the hell?
Most retarded thing ever to show an item in stock and then tell you the next day that it's not
Looks like I'm going to have keep refreshing the newegg webpage every 10 seconds

 

[Elcs]

Originally posted by: Tiorapatea
Hmmm, my new XP-M 2500+ is AXMH2500FQQ4C AQZFA 0340VPAW. Looks unnervingly similar to yours, Elcs. I won't be able to use it for a while, anyway, so maybe I'll put it on Ebay. Mind you, 11.5x200 is not too shabby.

Any issues with the proc not being identified? I seem to have posted this question in about twelve thousand different threads so sorry to bore everybody but I keep finding a more apposite thread than the last. So my question is, might certain features such as full SSE extensions not be utilised as a result of the motherboard's failure to know for sure that they are there?

Well it is pretty poor looking at all the other overclocks people are getting.... but its faster than my T'Bred B at 1.75V. Also bearing in mind some people are putting 2V through them Im happy all-round.

The BIOS picks it up as an Unknown Processor 600mhz (100x6) as I said.

Checking AIDA32 now... (Picking out points I feel are relevant to your question but ask away if there is anything else you want to know)
CPU Type: Mobile AMD Athlon XP-A , 2200mhz (5x440) 3200+
L2 Cache: 512kb (on-die, Full-Speed)

Instruction Set (supported instructions)
AMD 3DNow!
AMD 3DNow! Professional
AMD Enhanced 3DNow!
AMD Extended MMX
IA MMX
IA SSE
CMPXCHG8B Instruction
Conditional Move Instruction

 

[PCBliss]

I was able to get 2500mhz at 1.85 volt on mine, but now it wont even do 2400 mhz at 1.825 volt.... dunno what happened but ill keep playing.

 

[Soulkeeper]

too much voltage guys !!
slow down yur killin um

 

[smokedturkey]

one thing you need to realize, this chip isn't a 1.25v chip... or even a 1.45v chip. The default is 1.45v for STARTUP. my 2500+ is a 6 multiplier and 1.45v startup. That is the default for a notebook because they implement POWERNOW! technology.
As the cpu needs to perform a greater task, the drivers will jack that voltage and that
multiplier up to the maximum rated cpu speed (2ghz).

Now, that isn't waht we are about, is it? We all want speeds of 2.5ghz or higher, so we need to jack it up manually. There are two good programs out there for those of you who have overclocking limited boards (like me). Modify your bridges to accept max multiplier,
max voltage, starting multiplier (if other than 6), and starting voltage (if other than 1.45)
I think my max multiplier was like 12, so I changed it to 14. Max voltage was 1.45, so I changed that too. Also changed the starting multilplier to 10.

I wouldn't think that 1.85v would necessarily damage a cpu unless your cooling isn't up to par. But I'll stick closer to 1.75v.

Anyone interested in these two programs, do a search for CPUFSB and CPUMSR. Great for the limited overclocking boards or anyone who wants to change things around on-the-fly.

 

[PCBliss]

Jesus 1.85 is fine. Just watch your temps and grow some nuts