overclocking

[sdswann68]

After reading article after article on overclocking, I'm still very confused as far as were to begin. For starter, I have a 2.2Ghz P4 on a Asus P4B board. 1.5 Gig of sdram pc133. The video is a Gforce 4 Ti4600. I have (2) western digital 120Gig HD's, the creative audigy card w/face plate, Yamaha 24-10-40 burner with an Acer 16x-48x DVD/CD-rom, Intel camera, 40 gig ext. usb HD,
22" viewsonic monitor, APC 650 back-up pro, Altec powered speakers with sub., microsoft keyboard w/wireless mouse, linksys. nic card 10/100, The list is long with still more!!
As you can see, I've invested lots of money and the last thing I want to do is fry a $650 processor.....
Reports I've read say the average OC for a 2.2 is 3.6Ghz!!!
Thats sounds great, also a little pushing the limit. I'm not a big gamer or run large applications.
I've installed lots of fans, (2) in the front, (1) on top of case, (1) on the side of case, (1) on back of case, plus installed a pci fan card just under the video card. I have a large copper base(with copper fins) heat sink, plus cooling for the (3) sdram sticks.
I NEED HELP or suggestions on the settings: Clock multi, Frequencies, voltage, etc.... Thank you-Stephen

[Jimstep]

Welcome to SysOpt!

With all your case fans, make sure that you have air flow. For instance, if the front fans blow into the case, then the rear fans need to blow out of the case.

Remeber that you overclock at your own risk. That being said, the first place to start is the two methods of overclocking.

You can oc with fsb or the cpu multiplier. Adjusting fsb will overclock the PCI, AGP, memory, and the cpu. Adjusting the multiplier only effects the cpu.

What I would do is start out with small increments of the fsb. Since you have 133Mhz ram, try 136 and see what happens. As you get faster, the system will eventually become unstable. Two things to help correct instability. 1) more coolant. Water cooling is the best. 2) increase the voltage to strengthen the signal.

Give that a try.

BTW, I use to live in Little Rock. I love that area and north towards the Buffalo River. Lots of good fishing spots.

[sdswann68]

Hi Jim,
Thanks for your response... You were really the only one who responded or new what they where doing!
I've still got a few questions if you don't mind.....The mother is a Asus P4B that will go to 2.4Ghz.The board is/or can be jumperless.
If I go ahead a try OC, should I manually set the clock-multi to 24x through the jumpers or just turn them off and do the bios through setup?
Where would you start as far as freq. selection? I'm not sure what available through the manual settings, but with using the jumpers the book says:

CPU 100MHz 105 111 120 120 125 133
APG 67MHz 70 74 80 60 62 66
PCI 33MHz 35 37 40 30 31 33

Voltage? the book says auto-manual...settings are 1.750v, 1.775v, 1.800v, 1.825v or1.850v
The chips voltage is 1.50v which is lower than the settings!
What's up with that? (Should I just leave stuff alone?)
Thanks Jim
Stephen P.S Why did you leave LR?

[gibsinep]

A. It's a **** shame you put PC133 in that rig:(

With a Intel chip their is no way you can Overclock via the clock multiplier as their is no way to unlock it.

So the only other option is the FSB
All those jumpers setting you listed wont raise the FSB( I think) as none are already set at 133.

SO check in the BIos. Don't raise the voltage right away. Go as far as possible at nomral volatge with the FSB. When it becomes unstable raise the voltage up a bit. ( Voltage,other than temps, is the most dangerous part of OC IMO)

This may or may not fix the instablity.


Reports I've read say the average OC for a 2.2 is 3.6Ghz!!!

This is totally in correct. Only 1 person that I have seen has been able to reach that and that was using Nitrogen.

Average OC from overclockers.com--2667mhz


Still an extreme amount of MHZ though:)

[WayneD]

I have two asus boards one is a 266 but have just purchased an xp 2000 for it and the other is a 200FSB. Now want to move my amd 1400 (266Mhz) to the 200FSB board. Will it work and if so how should I set up the multiplier and FSB in Bios. Any thoughts.

[gibsinep]

If you put a chip that runs at 266(133)Bus speed on a motherboard that runs on a 200(100)bus speed. The chip will still work except it will run at a lower clock speed.

ex 1.33 t-bird at it's 133mhz bus speed=multipler of 10x133=1.33GHZ

But if you run it at 100mhz bus it is now 10x100=1000mhz.

So yes it works but slower.

[WayneD]

As I have my FSB on my 200FSB mobo set at 117 and the multiplier at 12 my current 1.2 CPU is running stable at 1.4. This being the case and given the limitation of my board max multiplier of 12.5x am I safe to assume the maximum I can expect from the new t-bird 1.4 (266) is 1462.5 MHz(12.5x117). If this is the case then I really would not be underclocking the CPU but rather overclocking a nominal amount. Is that right?

The mobo is an Asus A7V-E. Multiplier in the manual had the FSB limited by dipswitch settings to 110, only through testing a variety of non standard settings was I able to find the 117 setting which is working quite fine. If I were able to set the FSB higher with further testing would you think I might get a little more overclocking the 1.4GHz.

[gibsinep]

well, yes and no.

Every chip reacts differently to Overclocking. That 200bus chip may be better at it or may be worse at it.

But, yes if you could get it to a 117bus than you would be overlocking it to around it's proper speed.

[WayneD]

As my Mobo is based on a VIA KT133x chipset some believe I should be able to get the FSB up to 133....this of course would take many dipswitch attempts as Asus does not post settings above 110. Do you agree and any thoughts or direction on where I might get the dipswitch settings to take it to 133?

[missiveusa]

Instead of tweaking that Athlon 266, why not just buy a mainborad that supports 133 MHz DDR FSB? Many to choose from: you could really upgrade with a KT-266A-based board. Just a thought...

[WayneD]

Great idea, as I did just upgrade to an Asus A7M266. The A7V-E was my initial board that I am using on a second system.