Advice on why this OC wont work

[Kief]

I have a P3 700E and an Abit BH6 mobo. Trying to set fsb to 133, which should be easy on this chip from what I hear. I have tried voltage from stock 1.65 upto 1.85 (max allowed in bios settings) but cant load windows on the box (tried 98se and 2k pro)......can anyone give me some advice on what else to check?

[The Doors]

Hi Kief, wellcome to the Forum,
What kind of cooler are you using, and what about the chip temps? never must go over 50 degree C @full load (100% load) especially if still not overclocked!

[Kief]

I do not know what kind of hsf it is as I took it from another machine and it does not seem to be marked at all, but the system is running at about 40 degrees C, so I am fairly sure that is ok =)

[Kief]

That 40C is when OCed BTW, in the low to mid 30s running at normal speed.....

[The Doors]

Probably I need of more info ;)
I suppose that you are using mem Module Pc133 and at the standard voltage of 3.3V or more?

[Kief]

Yes, I have tried Kingston pc133 cas3 and when that failed I pulled some crucial pc133 cas2 from my main box and used that. Tried the crucial at both at cas 2 and 3. In the soft setup I see the default for voltage is 1.65, and have tried each setting upto the max, 1.85 in steps of .05.

Thanks much for the help, if you need anything else lemmi know. I dont have the stepping info here, but when I get off work I can look at the chip to get that if its important. I didnt look at if before since I was told these should all be able to do 133fsb =)

[The Doors]

I was speaking about the Mem module voltage, the standard value is 3.3v but sometimes is necessary a little increase to 3.4 or 3.5v to gain stability. For the stepping revision of your chip, well, generally it must works at 133Mhz of fsb without great prob, the common probs are the heat or the mem not Pc133, it's really strange....uhmmm try also with a lower voltage than the max 1.85 coz can works also at 1.65v, it's happen me with a P/// 650E slot 1

[Kief]

OK, it is certainly PC133, and good quality at that. I have the crucial running @ 138 in my other box rock solid. As for the mem voltage, can I change that in the BIOS?? I would be happy to try 3.4 if it may help!

[Zuck Gou :)]

Tried anything lower? May have gotten a melon?

[The Doors]

Yes, I think, only on older Mobo is done setting a jumper on the Mobo. Do you have just installed the OS's or are you trying to do it with the system OCed?

[Kief]

I was thinking about trying other speeds, but was confident based on other reports this should be able to do 133, and I was also concerned about screwing with the PCI bus speed as well. If I dont get anything new to try from advice here I can try 124fsb. The Abit board offers only 112, 124, and 133 as settings over 100.

[Kief]

I am trying to install win98se from CD to a freshly formatted drive. I booted and formatted while OCed to 933/133....

[The Doors]

Yes, but don't worry,
We are a lot on Overclockers.com and many guys can discover the right way for your chip @933Mhz, Mr B that is the Moderator of this area, well have this kind of chip ;) probably have many tips then me :cool:

[The Doors]

Originally posted by Kief
I am trying to install win98se from CD to a freshly formatted drive. I booted and formatted while OCed to 933/133....
No, no, no, better install at the rated speed and after OC you system!

[Kief]

OK, will try that too. The only reason I was doing install while overclocked was I thought that would be a good test of stability !!!

[The Doors]

I'm sorry, but this is another of the wrong way, but all depends by the crap OS's!
To check how is rock stable yous system OCed, well install Folding@home that seems to be the best way, and 3DMark2001 for the VidCard SubSystem ;)

Godd luck, and let me know Kief :cool:

[Treker]

You temps seem just a lil too hight, but thats for my tastes, I see you'ved tried differnt memory, and settings.. I'm left to ask if your using a 1/4 devider when atempting 133fsb, and if you've tryed working your self up to it in the smallest increments you can make on your board..

Personaly I love my p3, I got her up to 1100mhz right now and as long as I dont put my side on the case I'm alright :)

Keep us posted, I hope you can find a way to break a gig with that baby, though some are duds :/... is there another system you can try it out in?

-Trek

[Kief]

No other system to try it in, My main system is tbird, next 2 are durons, and the rest socket 7s. Will be going home in 20 minutes to play with it some more =)

[LutaWicasa]

This is all good advice.... except, you're running an old BH6 thus you don't have the ability to manipulate the VIO voltage (3.30v) and you do not have the 1/4 divisor ( at FSB 133 you're pci will be about 44.33 Mhz). Now if you think your hardware can cope with that high a pci bus you could try bumping the voltage beyond 1.85 v. I wouldn't recommend this without some serious thought as to your cooling. As I recall on the BH6 you have only system temp monitoring, have you added an add-on temp monitor for your proc?? Now a little more of the baddish news, the old BX boards didn't handle 133 fsb very well. Yes, people have successfully done this, but it is actually the exception rather than the rule.
Okay. Now, if you have decided you want to try a higher VCC voltage( core volts) you can use the re-flash trick with the BH6. Just flash the bios using the /sn/cc switches and when done exit flash prog with F10 then re-set, go into bios set-up and you now have options up to about 2.1 v. :D

[Bond_]

Try to get another sloket, try to get crucial ram you can go to +/- 157Mhz cas2!!
was your Burn-in well done with seti and playing a lot q3 and ut about 2days to 2weeks...?
And i don't think your mainboard helping you for p3 overclocking i trush on asus cusl2-c...

[JetMech]

Originally posted by Kief
I have a P3 700E and an Abit BH6 mobo. Trying to set fsb to 133, which should be easy on this chip from what I hear. I have tried voltage from stock 1.65 upto 1.85 (max allowed in bios settings) but cant load windows on the box (tried 98se and 2k pro)......can anyone give me some advice on what else to check? Does your board have a 440 BX chipset?

[Kief]

Well after playing with this I can get it only to 112fsb. I think this is due to not having a 1/4th mult on the board. Best itll do is 1/3rd even after a BIOS update to latest version. I guess I will have to be happy with this. On a side note this board is gonna need replaced, as the atx power connector is falling off and I had to reattach it myself. So since I need to replace this mb anyway and I wanna OC this to 933/133 can someone suggest a CHEAP board thatll do 1/4 mult for PCI. I need a board without anything built on (except MAYBE audio). I usually use Tyans for computers I sell cuz they are stable and cheap, but they dont overclock well at all.........

[LutaWicasa]

Uhh...... Hey Keif, "cheap" is a relative term :) Do you mean around $100 ?
I myself am thinking of expanding my upgrade path. So I've been checkin' on boards that support the Tualatin and are backwards compatible with the Cxx step PIII's. On Pricewatch found Abit ST6's in the $99 range and Asus TUSL2-C at about $112. Of course you could check out some forsale forums and find BX boards cheaper.

[Kief]

Cheap as in the cheapest POS that will get this chip to 933. The board and chip will be married until one dies so I am not worried about upgrades =)