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Barton 2500+ O/C Voltage?

M

mindstormsguy

Gawd
Joined
Nov 4, 2002
Messages
654
I am in the process of overclocking my 2500 and its perfectly stable at 175/11 but when I up the it too 180/11 windows decides to not use my video drivers and it forgets that my power supply is capible of going into standby (it probibly does other things too but i havent really paid much attention). so anyway, the inexperienced overclocker i am, i think that i need to increase my core voltage. its currently at the stock 1.69, where should i put it? or is that even my probem, should i just stop at 175?

thanks
 
anybody? i'm kinda disapointed if i cant go higher than that. i didn't buy the chip in hopes of overclocking, but now that i've read what so many people are doing i want a peice.
 
Friend of mine has a Barton 2500+ doing 11x200 at 1.7v. He's thinking of selling it and getting a whole new system. He's also selling his Kingston PC3200 DDR.

I have a mobile Barton 2500+ at 2.5Ghz (15 x 166) at 1.725v.
 
how high is too high to go for my voltage? i've tried 1.7 but still not stable....i dont wanna go over 1.75 without someone telling mei should try
 
youre sure its 1.69? stock should be 1.65v. 1.69v sounds like it's really at 1.7v. wont really matter though, cause its all relative when you know where "stable" and "unstable" is.

anyway, about a thousand people here run their 2500+ at at least 1.85v. if youre paranoid about overvolting it, try 180 and bump the voltage up one notch, which should be 1.675v, but whatever.
 
I run mine at 10x220, 1.80v, works fine. Try upping your memory voltage and running memtest86.
 
well yeah, its 1.69 according to the motherboard sensor but its set at 1.65. well i've tried all the way up to 1.8, i'll try .85 and see if that changes anything. i'll tinker wiht my ram too abit. i'll keep u updated
 
okay, well i think i'm not going to get any overclock over 175 fsb. i've tried all the way up to 1.85 volts. i cant increase the voltage for my ram in my bios. maybe its my cpu, maybe my ram or mobo, but i dont think i'll be able to get any higher. thanks to those of you who have helped me:)


edit: well i may be able to overclock using my multiplyer but w/e
 
id guess that its valuram thats holding you up. and/or power supply unless its a quality name brand.
 
well, it's pc3200 ram, it should run at stock speeds. what about the memory voltage and timings?

Later,
Eli
 
Have looked to see if there is a newer version of your bios? I can't imagine ASUS not allowing you to change your vdimm setting. Also, have you tried losening your ram timings? something like 3-3-3-11?
 
Windows unloads the video drivers? Sounds like the AGP bus is WAY out of spec because of the odd fsb.

I would try a straight up 200x11 and see if it works at 1.75vcore. (Ignore my sig, I just made the switchover from amd.)
 
I've got an older Barton, and it needs 1.85v to do 11 X 200. I've gotten it up to 11 X 220 at 1.9v before. :) Currently in the process of getting back up there... Also, my Mobile Duron is at 1.16 with a 166 FSB. :p 7 X 166 is kinda nuts... Such a low mult. ;) Stock is 10. Going to lower it to 6.5 and try to actually push my RAM. :)
 
I'd suggest loosening up your ram timings. That did it for me. I've still got some tinkering to do, however.
 
Originally posted by Spewn
I'd suggest loosening up your ram timings. That did it for me. I've still got some tinkering to do, however.
Click to expand...

My mobo doesn't like my RAM. I have to run especially loose timings to begin with...
 
Originally posted by ’m‚³‚ñ
My mobo doesn't like my RAM. I have to run especially loose timings to begin with...
Click to expand...

I'm currently running 11-3-3-2.5, and while that hasn't let me OC my cpu any higher, I benchmarked about 300 3dmarks higher in 3dmark 2001SE.
 
Originally posted by Spewn
I'm currently running 11-3-3-2.5, and while that hasn't let me OC my cpu any higher, I benchmarked about 300 3dmarks higher in 3dmark 2001SE.
Click to expand...

I just found out that I've got a 470 watt draw on my system... And this is a 460 watt PSU. :eek: I think that's what's holding everything back for me... Time to pull a HDD or get a more powerful PSU. I'm glad I don't have my RAID card in... That could really suck for me. :p
 
My Crappy 2500+ BARTON will hardly do 11x200 with 2 V :eek:

Currently I run it at 12x185 at 2 V. My 2500+ BARTON hardly do stock speed at stock voltage :(
 
Can't even get mine stable at anything above 2200mhz, maybe I need some better NB cooling tho..
 
Originally posted by Ph0llen
Can't even get mine stable at anything above 2200mhz, maybe I need some better NB cooling tho..
Click to expand...

NB cooling and my PSU are currently holding my RAM timings down and my OC down. :( I think I can free up some wattage by popping out a drive... This 120 gig Seagate is begging to move to a different computer... :p That should get me some better rails, and another folding box. :) Plus, my poor video card won't have this stupid drive pushing against it... I'm going to have to remove my vid card to get the hard drive out...
 
wow i've got to get some AS5 tomorrow, my cpu temp shows 58 degrees @ fulload:eek:
 
well i do have the newest bios. i got it because when i origionally bought my new mobo cpu and ram i couldn't run anything that was demanding on they system (couldn;t load any games or photoshop etc...) so anyway i upgraded my bios which was supposed to fix some stability problems with 4x agp cards (i have a pathetic msi geforce4 440mx) and that kinda fixed the problem. then i also upgraded my psu from a 250 watt no name (yeah i know, i'm crazy) to a thermaltake truepower butterfly 480 watt. so that also fixed my stability problems...but only abit. some games still crash when i'm playing them.

so yeah, maybe is this related to my video card problems? or atleast i think its vid card problems. i really cant tell. and it seems like whoever i talk to, they cant really tell either.


i'm gunna update my sig wiht my systems specs so all of this is easy to understand

edit: i cant lock my pci/agp clocks. problem?
 
what? do you have something better to do on your sunday than answer my questions :p lol

yup, this is basicly just a bump;)
 
If you can't lock your pci/agi clocks, they're probably set at divisors. Can you find out what those are? For example, you probably have a 1/3 divisor, a 1/4 divisor, a 1/5 divisor, and *possibly* some others(1/3 for 100mhz fsb, 1/4 for 133, and 1/5 for 166). If you're running the 1/5 divisor, trying to run 180mhz would stick your pci/agi bus speeds at 36/72mhz respectively. It might not seem like much, but I'd bet that's where your stability issues are. Figure out what divisors you can use, and try to get your pci/agp speeds as close to spec(33/66) as possible with those divisors, that should take care of your stability issues.
 
Wow, guess I am lucky. I use plain ole cheap white thermal paste on my CPU/HSFs and I am getting the temps in my sig with my 2400+ Barton at 2.4ghz and 1.8v.
 
Originally posted by Scortch
Wow, guess I am lucky. I use plain ole cheap white thermal paste on my CPU/HSFs and I am getting the temps in my sig with my 2400+ Barton at 2.4ghz and 1.8v.
Click to expand...

Well well, I didn't even know the mobile Barton came in a 2400+ flavor. ;)

It really doesn't matter too much on what thermal paste you use, as long as you use it right. You'll only see a few c difference between generic thermal poop and $500 miracle paste. ;) As some of the older hands have been bitching about, it also matters on ambient temps.
 
AMD Athlon XP2500+ Barton @ 2.15GHz (FSB195 x 11x)
Voltage fluctuates between 1.792 - 1.808v even though set to 1.725 in BIOS.

I guess I got a bad batch on my motherboard (A7N8X Deluxe), I have run at 2.3GHz before (208x11) and have noticed no difference so the lower FSB isn't too bad.
 
Originally posted by Spewn
If you can't lock your pci/agi clocks, they're probably set at divisors. Can you find out what those are? For example, you probably have a 1/3 divisor, a 1/4 divisor, a 1/5 divisor, and *possibly* some others(1/3 for 100mhz fsb, 1/4 for 133, and 1/5 for 166). If you're running the 1/5 divisor, trying to run 180mhz would stick your pci/agi bus speeds at 36/72mhz respectively. It might not seem like much, but I'd bet that's where your stability issues are. Figure out what divisors you can use, and try to get your pci/agp speeds as close to spec(33/66) as possible with those divisors, that should take care of your stability issues.
Click to expand...

i dont know if i can change the divisor....i'll look more later. but yeah i think thats what my problem it because when i jump to 180 my pci goes from 35 to 36.

when i get back home i'll look deeper in my bios

thanks :)
 
I'd personally recommend bumping the voltage to like 1.775, setting your ram timings to something like 11-3-3-2.5, or 11-3-3-3, and trying to go right up to 200mhz fsb. If you other divisors, that's most likely where it'll kick in(there could be others, but there's almost definately one for that speed).
 
okay, i've never tried anything with my ram timings before. which # is for which thing? and also...i dont know if that will work anyway; when i clock my fsb too 200 my pci is at 40. that seems alittle to high for my and i think thats what is causing my nvidia driver problems. not to say that i wont try it with the different ram timings:)
 
found a picture of my bios

a7v8xx-21.jpg
 
Doesn't look like you have any divisors over 1/5, so you're probably stuck :/
 
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