Can't get to the 100Mhz Clock speed.

[pony35th]

Ok, I have a Celeron II 700(66x10.5) I am looking to overclock it. I hit 83.3 Mhz and it runs like a dream. 32 degrees under full load. I wanna try to get to the 100Mhz FSB and it will not even boot. Zip Zilch Notta Nothing. I have a crappy generic Mobo thatonly hits a Multiplier of 8.0 manually. so I can't set the FSB in the bios. I am currently using CPUFSB to set the bus. I am currently running at 875Mhz(83.3x10.5). If anyone has any input, please help.

[SteveI]

Originally posted by pony35th
Ok, I have a Celeron II 700(66x10.5) I am looking to overclock it. I hit 83.3 Mhz and it runs like a dream. 32 degrees under full load. I wanna try to get to the 100Mhz FSB and it will not even boot. Zip Zilch Notta Nothing. I have a crappy generic Mobo thatonly hits a Multiplier of 8.0 manually. so I can't set the FSB in the bios. I am currently using CPUFSB to set the bus. I am currently running at 875Mhz(83.3x10.5). If anyone has any input, please help.

You probably won't hit 1050 without a way to increase your voltage. Can you change the voltage in your BIOS? My old MB only goes up to 8 for a multiplier, but a BIOS update may get you more flexibility. BTW, Intel chips are multiplier locked anyway so changing it in the BIOS won't do anything.

SteveI.

[pony35th]

SteveI: BTW, Intel chips are multiplier locked anyway so changing it in the BIOS won't do anything.

I understand that they are locked. My point was that to set the FSB in the BIOS.I need to be able to manually get to the 10.5 setting and I can't.

I have looked for a bios update but it seems that the Mobo vendor is no longer around. I may just get another Mobo when my wife isn't looking.

If anyone knows where I can get updates for boards that are no longer made please let me know.

[SteveI]

Originally posted by pony35th

I understand that they are locked. My point was that to set the FSB in the BIOS.I need to be able to manually get to the 10.5 setting and I can't.

I don't mean to sound arguementative but, 10.5 is the multiplier. I think you meant the FSB 66/75/83/100/105 etc..

What's the make and model of your board? You might get lucky and find someone with the same board. Also, there is a web site that sells generic BIOS chips, can't thinkof the site, and I've never used them myself, but maybe someone else has.

SteveI.

[Aedan]

If you still want to play with the FSB settings, then you might want to download a copy of SoftFSB. You'll need to know what the clock generator chip on the motherboard is. SoftFSB allows you to adjust the FSB frequency on the fly from within Windows, so you can tweak as far as you like.

Now you'll tell me you have to set jumpers to set the FSB.... :P


AidanII

[surlyjoe]

if you wanna up the V-core, theres a trick about wrapping the pins with wire to change the VID pinout. I think that will prolly get you to 100fsb if you have good cooling

[pony35th]

ADIANII: If you still want to play with the FSB settings, then you might want to download a copy of SoftFSB. You'll need to know what the clock generator chip on the motherboard is. SoftFSB allows you to adjust the FSB frequency on the fly from within Windows, so you can tweak as far as you like.

I am currently using a program called CPU Cool to set the FSB. It is similar to SoftFSB but has all the features of MBM as well. I can get it up to 83.3 Mhz and it runs fine. At 100Mhz, the PC locks up on me. I have to figure out how to up the Vcore. There is no settings in the bios. All you can set in the bios is the Multiplier and the FSB. I am probably going to buy another mobo.

[SteveI]

If I state the obvious, just ignore me. If you are using the sw to up the FSB, I am not certain if it will automatically adjust the PCI divisor. If not, at 100mhz bus, you are attempting to run PCI devices at 50mhz. i don't know if any devices can handle that.

If this is the case, I would try to use the BIOS to up the FSB. Also, to up the voltage, you may wanna try the vidpin trick as someone already mentioned.

Good luck,
SteveI.

[dimmreaper]

Originally posted by SteveI
If you are using the sw to up the FSB, I am not certain if it will automatically adjust the PCI divisor. If not, at 100mhz bus, you are attempting to run PCI devices at 50mhz. i don't know if any devices can handle that.

Yup, sounds like the case to me . . . .

BTW pony35th, what MoBo is it that you have?

[pony35th]

Well, The Mobo is a junk EUPA BBP. It's an i440BX chipset. EUPA seems to be no longer in business. I am probably going to buy another Mobo.

The software does automatically adjust the PCI divisor. It runs at 100FSB/33PCIB.

Unfortunately, I cannot use the bios to adjust the FSB because I cannot set the Multiplier to the 10.5 setting that the CPU is locked at. The highest the Mobo will let me set it at is 8 and the CPU won't work with it set at 8.

Where might I find this VIDpin trick?

[Phil]

It doesn't matter what multiplyer the board has or supports, I think all bx boards have a maximum multiplyer of 8, luckily intel chips are locked and run at the locked multiplyer regardless of the one in the bios, so you can ignore the multiplyer, I can set mine any where from 2.5x-8x and it makes no differance. As for the fsb, like most people have said a 700 just isn't likely to reach a 100mhz fsb, The celeron cores based on the cBO and cCO usually topped out around 900-1000mhz, and with a 10.5 multiplyer you chip would be running at 1.05ghz, while not impossible isn't likely. With a reasonable cooler, psu and a voltage increase it could be possible.
What heatsink and fan are you using and what case fans do you have?
Are you using a slocket for that cpu? if so does that have voltage jumpers and fsb jumpers, if not it may be worth getting a better slocket with those options on it.
And lastly is the program you are using to set the fsb setting the agp divider to 2/3? I know SoftFSB on my pc doesn't so when I set a 100mhz fsb in it when the board is set to 66mhz it puts the agp bus at 100mhz to, which my tnt2 was ok with but a lot of cards may not be.

[surlyjoe]

Originally posted by pony35th
Where might I find this VIDpin trick?

er is that for a socket or a slot1?

[dimmreaper]

Originally posted by surlyjoe


er is that for a socket or a slot1?

Shouldn't really matter for the technically minded. I set a buddy of mine's board's voltage higher with a conductive pen. Just looked up the voltage regulator specs and connected the right IC legs (because they are set via a DAC, so connecting them turns 'em to 1, you know what I'm talking about right surelyjoe?).

[Phil]

It's true you can alter the Vid by altering the pin conections of the ic that controls the core voltage on the motherboard, but wiring the pins up on a socket chip is easier for most people.
If he's using slocket then he should check if it has voltage jumpers, if it doesn't then it's worth replacing it with one that does as it's likely a generic slocket, and these can really affect overclocking stability.

[FireControl]

You may have reached the limit with your 700.I have a 566 pluged it in at 100(with updated bios) and bingo 853.

[Random Nonsense]

i know what he is on about with the multiplier thing, the board has an "auto" and a "manual" mode, to set FSB it goes in "manual" but then he has to set the muliplier too! he cant set it to its real one so it dies when he tried it!

[pony35th]

Originally posted by Random Nonsense
i know what he is on about with the multiplier thing, the board has an "auto" and a "manual" mode, to set FSB it goes in "manual" but then he has to set the muliplier too! he cant set it to its real one so it dies when he tried it!

BINGO!!!!

[Random Nonsense]

hmmmmmmm i guess the only thing is to find an updated bios......... they often allow new multipliers to be used... but as the board is old and the company seems to have dissapeared you may have problems! Is it a SLOT 1 motherboard btw? cos i have one knocking around, needs a new BIOS chip though, available through ASUS for $20

PM me if you are interested, we can negotiate a price ETC

it has all the overclocking options ETC.... had it running a p3-450 at 540 with stock cooling before the bios got killed by a virus..

im pretty sure it supported higher multipliers as when i updated the BIOS it let me select up to a 933 i think on "automatic" settings