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athlon xp ... 2600 Barton OCing - Page 3

post #21 of 50
moloo, a little theory doesn't hurt, so here it goes. The frequency of a CPU is calculated starting from two numbers: the fsb, and the multiplier.
The fsb can be seen as a base frequency of your mobo and it can have values of 100, 133, 166 or 200 (your mobo in particular can not have a fsb of 200 as it's too old).
The multiplier is a thing tied onto your CPU that is fixed for the barton 2600 at a value of 11.5.
Now, to find out what the freq of your CPU is there is a simple math:
freq=multi*fsb In your case 1150Mhz=11.5*100 I know you have 1140MHZ, but this is because there are small oscilations around the 1150MHz value.

As I said above your CPU setiings should be: fsb=166, multi=11.5 with a resulting freq of 1900MHz, no overclocking involved. You see that the problem is y'r fsb is too low, so before you start OCing you will have to put the correct settings on your bios. Right now the CPU is undercloked!
What you need to de is to restart your computer and enter the bios. Somewhere you have to find the settings for the fsb that has the default value of 100 unless changed. With no fear you set the fsb value to 166 and the cpu will jump directly to 1900MHz, I repeat no overclocking involved yet.

If you reach this far you are one step closer to actualy OCing your CPU. Just for your peace of mind, on this mobo you CAN NOT change any multiplier, so things like 10x200 are impossible, sorry.
Give me a feedback if it works and we'll see what's gonna happen next!
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post #22 of 50
Quote:
Originally Posted by The Duke
The big issue for you OCing is the CPU's cooling. Do you have the stock FHS or an aftermarker unit?
You must monitor your temps when you do a full load with Prime 95 .. keep the full load temp below 55c.

First of all... NOTE your FSB... it's 100MHz and that CPU should be default @ 133
Check your BIOS settings and also there may be a jumper on your MB to allow 133 and up FSB settings!!!
That poor thing is currently underclocked!

Another thing... are the 9G and the 200 on the same cable? If so the 9g probably is a slower drive like ata33 and it will slow the 200g which is either ATA100 or 133 and be slowed down to that.
So... if I'm correct you may want to connect the 9G to the CD-ROM cable.
This is indeed the problem, only that the Barton XP 2600+ defaults at 166 FSB...
Tho the XP-M 2600+, which is what you have, isn't it , has a default FSB of 133 MHz
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post #23 of 50
Thread Starter 
okay guys i did some poking around and this is what i found
i went into my setup and was checking things

for CPU speed i had the options manual, 1150MHz, 1533MHz, 1917MHz and 2300Mhz. 1150mhz is what it was default set at but now im running it at 1533mhz. if i try to switch to 1917mhz or 2300mhz theres a warning on the right side that says enternal frequency can only operate higher then or equal to 333mhz. Please make sure DDRam maximum is not less then 332mhz.

then for CPU Frequency Multiple it says 11.5x and theres no options for it.

for CPU EXTERNAL FRequncey its set to Auto but i have choices of 266mhz 333mhz and 400mhz.

for CPU Vcore it says 1.60V

for CPU Vcore setting it says Auto

and Cpu Level 1 and 2 Cache are enabled.

I know my motherboards FSB is capable of 333mhz because it says so on the box so could i set the cpu speed to 1917mhz or 2300mhz and set the external freq to 333mhz?

i hope this is the right info and the right questions to ask you guys.

eagerly waiting response.
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post #24 of 50
1.6v probably won't get a 2600+ to run @ 2300MHz.. 1.7ish or more for sure.
Why your BIOS is playing that game I don't know for sure but do check the RAM's speed and set it manually if necessary... up the vdimm a notch to test. I've seen many modules needing a bit more than default to run coprrectly.
    
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post #25 of 50
Thread Starter 
so if i add more power my pc will be faster?

and i got my board running at 1905.3MHz now. im attaching a picture of cpu-z. also im curious about this asynchoronous frequency and whether it works so if someone could tell me thatd be great. now im pretty sure my cpu is clocked properly and id like to begin the oc-ing . if ive done something wrong again dont be shy and let me know.

http://img47.imageshack.us/my.php?image=cpuz12xf.jpg ----------> cpu-z pic

thanks again guys/gals.
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post #26 of 50
hello i have a barton 2500+!!! i thought i will help. I have the same problem with the mobo only supporting 333mhz so what i did was i ran a divider so my ram is at 166mhz and FSB at 200 giving nice fast ram tiings as well. Try 11.5x multi and 200MHZ fsb and ram running at 166mhz. this should require no voltage increase
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post #27 of 50
Quote:
Originally Posted by moloo
so if i add more power my pc will be faster?

and i got my board running at 1905.3MHz now. im attaching a picture of cpu-z. also im curious about this asynchoronous frequency and whether it works so if someone could tell me thatd be great. now im pretty sure my cpu is clocked properly and id like to begin the oc-ing . if ive done something wrong again dont be shy and let me know.

Untill now it's perfect, this is the stock frequency. As I said, now you can begin OCing. You must have a setting somewehre that you can set the "External Frequency" up one step at a time, like 333, 334... not to jump directly to 400, it could be too much from the begining. Maybe you can set the external frequency (wich actualy is the fsb) thing on MANUAL, or something like that.
If you like gambeling you can set the fsb directly to 400, but there's a big chance it won't start. The problem is the mobo doesn't suport 400:
Quote:
I know my motherboards FSB is capable of 333mhz because it says so on the box
I think 2300MHz is out of reach because of the mobo, not the CPU. I bet that a mobo that suports fsb 400 will take that cpu to 2300MHz (200x11.5)

Before starting to OC watch the temperature of the CPU. If it goes over 55°C don't go any further as the XPs don't behave very well under high temperatures.

I remember that using asynchronous frequencies lowered the performances of my rig, since the nForce2 chipset I had used to be optimised for synchrone freq. I don't know yours how it behaves, but I bet you won't gain much by using this. A piece of advice: set the RAM frequency manualy to 333 (or 1:1) and lower the memory timings, the performance boost should be resonable.

Good luck!
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post #28 of 50
i think the limit on the xps temp is around 55-60 then it wil shut down
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post #29 of 50
Thread Starter 
hey im gonna try setting the fsb at 400 and see what happens. also i was wondering if it would be okay to test the 2300Mhz with a 333mhz fsb because the warning it gives says only that the the fsb should be atleast 333mhz.

also how can i increase my fsb 1mhz at a time?

edit
i tried setting my pc to 2300MHz in setup and it changed the fsb to 400mhz however my pc didnt start up so im assuming my motherboard cant handle any higher. what im curious about now is 1. is there anyway to overclock my cpu now and 2. what are the capabilities if i get a new motherboard.

oh and if i didnt mention it above my ram is pc3200 512ddr
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post #30 of 50
I suppose you can OC evan further if you find a way to rise the fsb one step at a time. I think that if you put the external freq thing on manual (assuming you can) you can rise it with small increments. The difference if you have a nForce2 based mobo will be that maybe (but with a very good chance) you'll be able to set a fsb of 400, and put the CPU at 2300MHz, maybe further. If you want a tip, try it in a ASUS A7N8X-x, or A7N8X deluxe.
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