how do i set multipliers in the BP6 BIOS?

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JediFonger
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how do i set multipliers in the BP6 BIOS?

Post by JediFonger »

thus far i've only seen the fastest setting for the BP6 as:
600(100). does this mean if i get 533mhz it can oc to 600?
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Dave Rave
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Post by Dave Rave »

the manual settings are post "must' set it and pre "don't care' what you have got.

with a ppga, it doesn't matter what you set the multiplier to, it uses the one on the cpu.
but if you don't set it properly, it ocmplains and you have to set the option about ignore errors.

and a 533 is 66 x 8, so at 100fsb, it would be 800mhz if it didn't fry first.
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Post by Holodeck2 »

intel locked it out, the settings don't do jack
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davd_bob
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Post by davd_bob »

You can adjust the fsb as far high as possable. You wont get any complaints from the system but it will lock up if the chip goes to high on MHz.

It will run but you WILL get complaints from some systems if you tell it a different multiplier then the one built into the chip.

Mendocino core celerons seem to hit a wall at about 550-600mhz. Thats probably why Intel abandond the line, 533MHz being the fastest. Also thats why 366s are so popular 'cause they go 550 at 100FSB.

I encountered someone setting up BEOWOLF clusters(I don't know what that is) using BP6 boards. That party(has since joined the board ) had a bp6 with 400s running near 700. He said he was using tame, but exotic cooling on the cpus. I haven't been able to even get 600 out of any of my cpus with standard cooling. I did put a 333 on a crappy board at 100fsb and it works great at 500.
Last edited by davd_bob on Fri Sep 17, 2004 1:08 am, edited 1 time in total.
There are *almost* no bad BP6s. There are mostly bad caps.

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Post by RRLedford »

Remember to increase the slot speed divider as he CPU clock goes up past the mid-80MHz range. The lower 1/2 divider leaves your cards clocking into the 40+Mhz range & they start to crash your system. Switch to the 1/3 divider setting for stability of cards.
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Post by InactiveX »

davd_bob wrote:I encountered someone setting up BEOWOLF clusters(I don't know what that is) using BP6 boards. That party claimed to have a bp6 with 400s running at 700. I suspect he was water cooling the cpus and the BX. I haven't been able to even get 600 out of any of my cpus. I did put a 333 on a crappy board at 100fsb and it works great at 500.
Beowulf clusters are a low-cost alternative to supercomputers, using networked PCs.

See http://www.beowulf.org/beowulf/history.html
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Post by davd_bob »

Thanks for the info.

PM'ed ya.
There are *almost* no bad BP6s. There are mostly bad caps.

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Post by InactiveX »

davd_bob wrote:Thanks for the info.

PM'ed ya.
No probs.

Replied! 8)
JediFonger
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Post by JediFonger »

RRledford,

where can i adjust the slot speed divider to 1/3? i can't see it on the BIOS.
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Post by InactiveX »

You cannot adjust the divider independently of the FSB. The divider will switch from 1/2 to 1/3 when you push the FSB over the 92MHz mark.
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Post by RRLedford »

InactiveX,
If you can't adjust the Slot/FSB clock ratio & it only changes from 1/2 to 1/3 at 92MHz, then all my cards would have to handle 33-45MHz as I went up from 66-90MHz this is too much to expect from most cards. I do belive the divider can be manually set, at least in the mid range speeds of the 75-90MHz
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Post by BCN »

not on BP6... :)
Dual C366@550MHz 1.90V :) (History)
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Post by RRLedford »

This must be why I went with the Cele-366 CPUs from the get-go & and never had to deal with this sad constraint! Sorry to all you 400+ Mhz Cleron BP6 owners!
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Post by headseed »

My original bp6 had a neo370 and a cellie 566 at 850 (100fsb), but when I wanted to give smp a try I got a couple 400s, 6*92=552, worked fine, and I got the 1/3 divisor. Since then I have also gotten two 366s, and also two 466s. Haven't tried to overclock the 466s too much yet, but the 366s did fine at 550, but no more.
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Post by davd_bob »

433s would probably run at 92fsb with 1/3 giving 598mhz. Depending on the application this would not overclock any of the cards and push the cellies to the max that Mendocino core can handle.
There are *almost* no bad BP6s. There are mostly bad caps.

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Post by InactiveX »

davd_bob wrote:433s would probably run at 92fsb with 1/3 giving 598mhz. Depending on the application this would not overclock any of the cards and push the cellies to the max that Mendocino core can handle.
When I had a pair of 433s in my BP6, I was able to run them at 550MHz, but no higher.

This was at a FSB of 83MHz. The PCI bus was running at 42MHz, which is very high, but all my cards were able to cope with that speed with stability.
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Post by davd_bob »

Until my BP6 all my "overclocked" boards were socket7 and OC was limited to the cpu only. Overclocking the various cards was beyond my vision. I am wondering, I have an 8x AGP on my BP6. What would overclocking do to it?

Anyone got suggestions, or want to tell war stories on OC'ing PCI/AGP/ISA cards?
There are *almost* no bad BP6s. There are mostly bad caps.

No BP6s remaining
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Sempron 2000
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alexsquared
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Need Help Please

Post by alexsquared »

I have a BP6 that I acquired not too long ago. It was running a single 400mhz processor, but I opted to buy two matching 533's from ebay. I was finally tinkering around with it last night but I couldn't get it to boot up. I went in the Soft Menu and adjusted the speed to User Defined, 8x multiplier, 66fsb, which is what I assumed would be needed for the 533. It pops up an error saying that CPU is unworkable or has been changed (I believe that's the wording). Does anyone know what would cause this? Before purchasing the processors, I checked the revision stamp on the board, and it was one mentioned for this speed processor, but I just can't get it to work. Is there a BIOS flash that needs to be implemented for this processor? Any help would be greatly appreciated. I'm dying to set this thing up as a file server, but I'm being held up at this point.
Thank you!!!!!!
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Re: Need Help Please

Post by purrkur »

alexsquared wrote:I have a BP6 that I acquired not too long ago. It was running a single 400mhz processor, but I opted to buy two matching 533's from ebay. I was finally tinkering around with it last night but I couldn't get it to boot up. I went in the Soft Menu and adjusted the speed to User Defined, 8x multiplier, 66fsb, which is what I assumed would be needed for the 533. It pops up an error saying that CPU is unworkable or has been changed (I believe that's the wording). Does anyone know what would cause this? Before purchasing the processors, I checked the revision stamp on the board, and it was one mentioned for this speed processor, but I just can't get it to work. Is there a BIOS flash that needs to be implemented for this processor? Any help would be greatly appreciated. I'm dying to set this thing up as a file server, but I'm being held up at this point.
Thank you!!!!!!
Changing the multiplier in BIOS won't have any effect since the CPU's are multiplier locked. Don't use the user defined function to set the speed - use the ready made 533MHz option.

You might be loosing the multiplier settings if the mb battery is dead.

Also, check if your board is physically OK. Do you have leaking caps on the board? What version of BP6 do you have?
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Post by Dave Rave »

there is some sort of interrogation of the cpu by the bios, so that it 'knows' what it is supposed to run at. or it's a written intelligent guess.

if you set it to something other than 8x and 66fsb it will error and reset back to the 300 option making you set it up again.
UNLESS, you tell it to ignore the 'speed error hold' option in the cpu set up section.

I find the std 66fsb can be set to as low as 1.85v, for less heat output.
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Post by Billl »

Dave Rave wrote:there is some sort of interrogation of the cpu by the bios, so that it 'knows' what it is supposed to run at. or it's a written intelligent guess.

if you set it to something other than 8x and 66fsb it will error and reset back to the 300 option making you set it up again.
UNLESS, you tell it to ignore the 'speed error hold' option in the cpu set up section.

I find the std 66fsb can be set to as low as 1.85v, for less heat output.
I believe Dave is right on that. I don't have my BP6 boards up and running but my BX6 2.0 does that same thing. I just set it to ignore the error and let it run. As was stated above the multiplier has no effect since the cpu's are locked.


Billl
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