Jackpot! My 2500+ is running at...

[Solari]

Yes it's true, 2.3GHz at only 1.6Vcore. Unfortunately I didn't have the time & cooler to test more. I'm only on some random copper cooler with a 70mm fan now. I will be testing more this evening and see what this baby really can do. But so far, things are looking really good.

Here's a picture (http://www.saunalahti.fi/psjogar/kuvat/barton2300.jpg) of WCPUID and pifast.

Code: AXDA2500DKV4D AQXDA0313MPMW
Temps: idle 45'C // load ~50'C

More on the subject, hopefully with some more pics tonight.

I noticed the vcore shown at the MBM dashboard in the picture isn't that readable, so I took a screenshot (http://www.saunalahti.fi/psjogar/kuvat/barton2300.gif) of CPU-Z (showing the vcore) and pifast. Notice that the time is poorer in this screenshot since I had all other programs running while doing this.

[OC Detective]

Further proof that these cpus are overclocking better at lower voltages and that the third letter is linked to voltage

[sixshot666]

luck of the cpu draw.i say you should be able to hit 2500mhz
with better cooling.mines at 11x200 with a vcore of 1.8 and ive hit its limit.ive tried 1.9 vcore with setting of 11.5x200 and it crashed.i might get another xp2500.

[Posidon42]

if they were cooler I would get another one. I had my 2500 in my main computer room and that thing was a space heater even at stock voltage and speed. overclocking only made it worse. put my 1700 back in my main system and it is nice and cool in there again even though my 1700 is running at 2.2ghz :)

[Col_Loki]

From what ive seen the newer Xp2500+'s run alot cooler than the older ones . Ive had an Aquca @ 2480mhz on 1.87v @52degree's load , and the newer Aqxea @2480mhz on 2.05v @ 51degree's load.

Thats with water cooling on an Abit NF7-S . The Aqxea ran at 2.2ghz on 1.6v and the Aquca ran 2.2ghz on 1.55v . But the newer one ran a big ammount cooler........

[Solari]

Yeah, these run a lot cooler than the older ones.. new steppings make miracles don't they? :) Well I can't wait to hook this cpu up with some better aircooling (like SLK-900 for example) or even water cooling.

[cherryp00t]

that is a awesome chip man =d

[Mustanley]

I've got an AQXDA now running at 1.80V at over 2500MHz. Chilled water though. It may go lower, I just haven't tested at 1.775V yet.

[threeputt]

How did you get it to run at 1.6? I thought the default is 1.65. Or did you undervolt it?

[mustrum]

Mine isn't running too cool since i am using a silent cooler but 200x11 at stock vcore isn't too shabby.
2500+ rock!
I wish i had water cooling to push it further!

[wannaoc]

Yea these new ones must be way better than the old ones. My old 2800 won't go over 2.3 without 2.0v and runs hotter than the flames of hell even at 1.8v. Hmmm, to buy a new or not. Oh the decisions.

[Solari]

threeputt, I set it to 1.65V in the BIOS, but my NF7 somehow transforms that to 1.6V in Windows. I checked with several programs and they all show the same, so I guess I just have to believe that. :)

[Solari]

mustrum, silent aircoolers can be good too, for example, imagine a SLK-947U (http://www.systemcooling.com/modules.php?name=News&file=article&sid=1165) and a ~20-25dB 80mm fan on top.. :) That'd be enough cooling power for most, me included. :p Sure watercooling would be nice too, and very very effective. But on the other hand, a good watercooling kit costs about $200 (roughly). I surely would like to test a watercooling kit before I buy it, just to see if I really need it or if I'm just paying $150 extra for ~100MHz more cpu-power. It's really hard to decide which way to go. A friend with watercooling would be handy right now. :)

[Mustanley]

Going from a vantec aeroflow to water cooling netted me a 200Mhz increase (2.3GHz to 2.5 Ghz) on the 2500+.

[Col_Loki]

Yea i was getting around the same.... 200mhz extra.

I can keep the Aquca stable at 1.85v with the fans on full (still quiet) , but it takes 1.87v on almost silent mode (2480mhz).

I might try more voltage and try 2550mhz , temps seem to be the only prob!! In my case there is around 8-10 degrees in the difference between my Aquca & Aqxea at prime95 load, even though the older chip clocks better :rolleyes: .

Wow 2500mhz on 1.8v - NICE chip. How many Xp2500+'s have you went through??

[DipStickTony]

not to burst your bubble or anything but have you run prime with it overnight yet ??

I know i can boot at up to 2.7 ghz with my barton but it cant pass prime for more then a few min even if i give it 2.2 volts.

Also at default my barton hit 2300 mhz but once again needed at least 1.725 volts to be stable.

The funny thing is i could run superpi or pifast or some other program called cpuburn or something and none of them crashed my computer.....but prime would either give a rounding error or the computer would just lock.

So test with prime before staying up late and typing a 10 page paper and having your puter lock up on you on page 8....trust me it sucks:mad:

[Karifan]

I am curious have you run any Sisoft benchmarks? for some reason to me the Tbreds are better performers overall, at higher mhz they outperform the Bartons. (only according to my benchmarks)

I'd like to see some benchies if you have the time, just to compare cause I am begining to think I got bad Bartons here, in which case I will just get the right stepping.

I got two Barton 2500 and on air cooling they will not run higher than 194*11.5 = 2231 mhz stable. At the same speed the Tbred 2100 gets higher benchies in Sisoft.

Is that a glitch or could Sisoft Sandra not be aware of the extra cache on the Bartons?

[DipStickTony]

maybe your using an old version of sandra....dunno for sure anyways ill get a screeny and post it.

http://www.theforumisdown.com/uploadfiles/0103/sandra24782.jpg

http://www.theforumisdown.com/uploadfiles/0103/sandra24781.jpg


this is sandra versions 2003.7.9.73

[Karifan]

nice benchie but this is at over 2400 mhz, what do u get around 2300 mhz?

[DipStickTony]

ehh so i have to restart eh ? alrighty ill get one at 2.3 :) just for you buddy this is at 200mhz fsb
http://www.theforumisdown.com/uploadfiles/0103/sandra23001.jpg
http://www.theforumisdown.com/uploadfiles/0103/sandra23002.jpg

[Col_Loki]

not to burst your bubble or anything but have you run prime with it overnight yet ??

Yup prime95 running for 24hrs no probs , dont think theres any point in posting an overclock unless its prime stable to be honest.

When im posting my overclock thats normally my everyday speed. Have no problems with running my system at 2v (and using it everyday once temps are ok) . 2.48ghz @ 1.87v at the min, havent pushed it anymore..... mabye i will :) .


Ps, Im using water cooling , innovatek XXS kit.

[DipStickTony]

very nice :) I found that mine needs 2.1 volts to get 2.6ghz and i dont like it that high....i might go back to 2.3ghz as i only need 1.7v there. Soudns like you got a killer chip, best of luck with it

[Col_Loki]

2.1v to get to 2.6ghz , sounds about right for my chip aswell. Have very briefly pushed it to that at 2.02v but i know it wasent close to stable, dont know wheather id run it that high.... specially not everyday :) .

Looks like we both have good chips !! Granted i have bought 3 of these already. My Aquca runs stable at 65 degrees which is way too high for my liking, 52 degrees on an Abit NF7-S (without the update) is fine with me.

Will be happy if this chip lasts until next summer when i will prob be moving onto the FX chip ......


PS My FSB goes to 210mhz which im really annoyed with to be honest, any tips :) ?

[DipStickTony]

try giving the vdd more voltage not sure if your mobo has vdd adjustments or not but i volt modded mine....also run your ram at 10-5-5 cas3 to see if it works alright....if it doesnt work its probably your board.

What kinda ram you using anyways ? If its posted somewhere sorry i missed it .... its been a long day

[Solari]

I've done some testing during the night and this morning, and came to the conclusion it is the crappy aircooling holding me back. I was able to run 3DMark2001 trough a few times with 2420MHz and 1.8Vcore without problems. More testing with 3DMark03 and Aquamark3 tonight, and hopefully I'll get a better cooler soon.

[Col_Loki]

What kinda ram you using anyways ?

Geil Pc4000 2x256mb running Dual DDR , cpu interface enabled.
Chipset voltage up to full & memory timings relaxed shes maxing out around 210mhz FSB (spread spectrum disabled).

Looks like a volt mod could be on the cards :) , mabye watercool it or is that nessary?? Hard to do ??


Solari , thats lookin good but you will prob need about .05 - .075V to stabalise her at that speed (prime95 stable) depending on cooling !! Looks good so far.

[Mustanley]

Originally posted by Col_Loki
Wow 2500mhz on 1.8v - NICE chip. How many Xp2500+'s have you went through??

This was the first 2500+ I purchased back in May. I later bought an AQXEA 0323TPAW that doesn't perform quite as well.
I'm also stuck at ~210FSB, which is annoying. I should be able to go higher.

[Col_Loki]

Yea i done the same , went from an Aquca 0308 to an Aquca 0307 to an Aqxea 0330 and back to Aquca 0308. With an Xp3000+ thrown in to confuse things (sold to buy the water cooling) .

Really annoying being stuck at 210FSB :mad:, may look into a volt mod i think.

[DipStickTony]

if you got decent soldering skills its really quite simple to do...if not look into the smp grabbers or whatever theyre called

[Mustanley]

I used a pencil to increase the chipset voltage from 1.597V to 1.649V and it made no difference. If the VDD mod was needed on my board, I should have at least gotten a few more FSB from that voltage increase.

[Col_Loki]

An increase from 1.6v to 1.7v got me around 2mhz FSB increase..........

Got PC4000 ram for upgrading a few computers at work , was a nice bonus. Just a real pitty i cant put it to good use.

[Solari]

Col_Loki, send the ram to me and I'll see to it that it gets into good use. :) Something is holding me back at 220FSB, and I think it's the PC3000 memory. A Vmem mod would maybe change things, as the memory only gets about 3V now. This board has in fact been tested FSB230+ successfully, but not with my ram. :(

I'll be getting a SLK-947U today, so I can see what this baby can do. :)

[Col_Loki]

Ive had my board posting at 245mhz FSB with my ram 1:1 with my old Pc3200 (seriously relaxed timings) , if i used dividers the max was 230FSB.

Totally different when your running dual DDR with cpu interface enabled !! Maxing out at 210mhz :( . What are you running?? Volt modded??

[Solari]

Allright, I did some pre-testing with the SLK-947U and I must say that this is simply the best heatsink I have ever witnessed in action! I'm running it with a 80mm Delta now at 7V to lower the noise a bit. The Delta is surprisingly quiet at 7V. I was able to reach 2500MHz (11x227) with 1.85Vcore, which is pretty descent. I'll be doing some Delta 12V action tomorrow, with case open etc., to see what this cpu really can do. But so far everything is going pretty much as I planned.