ocing a locked barton?

[Mik3y]

i know that the new 2500's are multiplier locked at 11x166, but if i were to increase the fsb to 200, i can still have the multiplier set at 11, right? that, in all, would be 2200MHz, about the equivalent to a barton 3200+. can i do that? (assuming i can get 200fsb)

 

[myocardia]

Most of the new XP2500's aren't making it to 200mhz, but yes, if you get one to 200fsb, you will have an XP3200, which runs at 11x200.

 

[Mik3y]

not even with the fsb friendly dfi lanparty?

 

[Mik3y]

also, even tho the multipliers are locked, how would it affect the fsb not being able to hit 200MHz, even with good ram? that kinda confuses me.

 

[hytek369]

Originally posted by: Mik3y
not even with the fsb friendly dfi lanparty?

it has nothing to do with fsb friendly. it has to do with the chip's ability to run higher frequencies

 

[TotalImmortal]

I not sure ware myocardia got that info about most 2500s not making 200 fsb, but that is not my experiance, I have built 3 2500+ systems and all in the last 4 months, they all reached 200+ FSB, 2 of those did it at defult voltage. As long as your mobo and RAM are up to it you should have no probs getting 3200+ speeds. The only prob i ever had is with a crappy asus micro-atx mobo which had the ram ratios locked at 400(200 * 2 for DDR)MHz for 166 fsb, i couldn't force fsb:ram ratio to 1:1 and my generic ram crapped out well before the FSB got near 200, In the end i had to use some 3500 corsair ram to get that one up to 200 FSB, at which frequency the ram was doing 240MHz (480 DDR) . The other 2 worked flawlessly with generic ram and one needed a slight boost to1.8v to make it.

 

[Tango57]

just wondering, are you planning on buying a desktop 2500+ barton and overclocking? if you plan to overclock a barton i would suggest you get a mobile 2500+ instead since they have unlocked mulitpliers and lower default voltages and just about $13 more than their desktop counterpart. if you have the desktop barton then yeah try increasing the fsb to 200 then test for stability. my old barton was unstable at 2.2 ghz so i only clocked it to 2 ghz instead. if it's not stable at 2.2 then up the vcore a bit to say 1.7 or so and hopefully that should work.

 

[osage]

200mhz should be doable........

But every cpu is different. if you are using a NF2 mobo with AGP/PCI lock and the cpu won't do 200mhz just go for 195mhz, or whatever the cpu will do.

if you haven't got the cpu yet a mobile cpu would be a good idea...

 

[dmcowen674]

I've had a 3200 400 in my A7N8X for a few months, today I got a 2500 333 for another system. For the heck of it dropped it in this system and it has been running as a 3200 all day. I may just leave it in here.

 

[LED]

The Fab produces the same Square and just locks the X's so 25's are the same as the 32's just not guarenteed @ 200FSB akthough I've yet to see one that won't do it and if it doesn't then it's 1 fubared 32.

 

[Mik3y]

i was wanting to get a desktop barton, because of the price. i would have to get a new power supply if i wanted to go wtih a mobile cpu, so if i could just stick with a desktop barton 2500+, then 3000+ would be sufficient. i just wanna make sure i can possible get to 3000+ at least.

 

[myocardia]

Originally posted by: LED
The Fab produces the same Square and just locks the X's so 25's are the same as the 32's just not guarenteed @ 200FSB akthough I've yet to see one that won't do it and if it doesn't then it's 1 fubared 32.

I don't know where you came up with that load of crap, but if you were correct, then at least 99% of XP2500's would run 11x200 at 1.65v, which has never happened, even in the heyday of the XP2500-as-XP3200 days 5 or 6 months ago. The way that I hear it happens is as follows: the ultra-low voltage mobile Bartons come out of the very center of the wafer, the DTR mobile Bartons that we're all overclocking to 2.5ghz come from slightly farther out, the XP3200's come from a little far yet from the center, then the XP2800's, then the XP2600's, and the XP2500's are the chips that are farthest from the center. If you were right, nobody, even resellers would be buying XP3200's, since their chances of running 11x200 at 1.65v wouldn't be one bit higher than the chances of an XP2500 running 11x200 at 1.65v.

 

[ColossusX]

Originally posted by: Mik3y
i was wanting to get a desktop barton, because of the price. i would have to get a new power supply if i wanted to go wtih a mobile cpu, so if i could just stick with a desktop barton 2500+, then 3000+ would be sufficient. i just wanna make sure i can possible get to 3000+ at least.

Just curious, but why do you need a new PSU if you go with the mobile Barton?? If your current PSU can handle a standard Barton, it should have no problems with a mobile barton.

 

[myocardia]

Because the faster your processor runs, the more 5v juice your power supply has to be able to put out.

 

[jjyiz28]

myo be right. the newer bartons just arnt overclocking like they used to. and not because its multi locked, it just seems can't run high freq as before. also, the mobile bartons arn't overclocking liek they used to as well. oh well, all good things come to an end.

 

[ColossusX]

Originally posted by: myocardia
Because the faster your processor runs, the more 5v juice your power supply has to be able to put out.

Im just saying that if you're going to run a standard barton at 2.2ghz on the old PSU, you should be able to run a mobile @ 2.2ghz on it.

 

[myocardia]

Originally posted by: ColossusX

Originally posted by: myocardia
Because the faster your processor runs, the more 5v juice your power supply has to be able to put out.

Im just saying that if you're going to run a standard barton at 2.2ghz on the old PSU, you should be able to run a mobile @ 2.2ghz on it.

What's your point? People aren't buying mobile Bartons to run them at 11x200, or hadn't you noticed? If all you are wanting is 2.1-2.2ghz, you might as well just buy a retail desktop Barton, and get a 3 year warranty and a free heatsink/fan, for less money.

 

[LED]

Originally posted by: myocardia

Originally posted by: LED
The Fab produces the same Square and just locks the X's so 25's are the same as the 32's just not guarenteed @ 200FSB akthough I've yet to see one that won't do it and if it doesn't then it's 1 fubared 32.

I don't know where you came up with that load of crap, but if you were correct, then at least 99% of XP2500's would run 11x200 at 1.65v, which has never happened, even in the heyday of the XP2500-as-XP3200 days 5 or 6 months ago. The way that I hear it happens is as follows: the ultra-low voltage mobile Bartons come out of the very center of the wafer, the DTR mobile Bartons that we're all overclocking to 2.5ghz come from slightly farther out, the XP3200's come from a little far yet from the center, then the XP2800's, then the XP2600's, and the XP2500's are the chips that are farthest from the center. If you were right, nobody, even resellers would be buying XP3200's, since their chances of running 11x200 at 1.65v wouldn't be one bit higher than the chances of an XP2500 running 11x200 at 1.65v.

You just elaborated more...same square on a baked sheet, further out from the Center doesn't give any guaren's @ 1 speed and all of them will not turn a 99% rate, even @ XP2500's more than 1 % take a Crap and end up in the dump. :roll.

 

[Megatomic]

I have a desktop 2500+ that does far more than 200MHz FSB and 2300MHz overall at default voltage. I do have one of the older steppings (a nice one at that), but so many people have good luck with them. I'd get one just to try it if I were you, you can always sell it at a few $$$ loss and try another.

 

[RussianSensation]

Aren't you the one with that decked out case that is the best ranked case on PimpMyCase.com?

Here is the description:

Name: Mik3y Age: 18
Description: AMD Mobile Athlon 2600+ @2.9GHz Abit NF7-S Rev. 2.0 1 GB DDR PC-3500 Corsair XMS Titan Internal Water Cooler. once the DFI nforce3 250gb comes out, i'm gonna get that and a mobile a64 3400+ and oc the hell out of it!

So here it says you have a water cooler and a mobile cpu at 2.9ghz and you are asking a n00bie question on the forums about overclocking a barton? Something is wrong here. Either that is not your tower and the specs are made up or that person who posted these specs isnt you or you found this tower and the specs and posted it up to see what it would get. So which is it?

 

[myocardia]

Originally posted by: Megatomic
I have a desktop 2500+ that does far more than 200MHz FSB and 2300MHz overall at default voltage. I do have one of the older steppings (a nice one at that), but so many people have good luck with them. I'd get one just to try it if I were you, you can always sell it at a few $$$ loss and try another.

But since you didn't just buy it, your point is moot. The OP is asking about a processor he hasn't bought yet.

 

[Megatomic]

Yes but many buying new Bartons are still able to hit 200MHz FSB. It's worth the risk. Your point is moot.

 

[myocardia]

Many buying new XP2500's aren't hitting 200 fsb, so why would he not want to spend $13 more to make sure he can get at least 2.2ghz out of his overclock?

 

[Megatomic]

All I said was that many (I've heard more yeses than nos) were hitting 200MHz and that I'd take the risk. But yes, it's definitely worth the $13 extra for the almost 100% guarantee that the mobiles offer.

I consider selling my older 2500+ to fund a new mobile 2500+ almost every day.

 

[dmcowen674]

Originally posted by: myocardia
Because the faster your processor runs, the more 5v juice your power supply has to be able to put out.

Absolutely.

CPU series before the Bartons needed 45 watts of power from the 5 Volt rail.

The Bartons use a whopping 160 watts!!! But no big deal for a Power Supply with an old fashioned beefy 5 Volt rail.