Duron @ 133fsb :(

[dustyslapper]

I have an unlocked duron 1200 on a recently acquired KK266+ ;) and am trying to get the thing to run on a 133 bus.

Damn thing wont post. :mad:

I think I am going to have to change the default multiplier to something lower then 12 - I think I heard of some kt133a boards with the 100/133 jumper having problems getting chips to boot at 133*default and then allow the bios to adjust lower the multiplier.

Does anyone have a guide or any advice about how to convert this 1200 into an 800 or 900 or something?

Any advice would be really nice - I am used to running my p3 with a bus of up to 150 - and I'm sure >133fsb is choking this chip like anything at the moment.

[Hans]

Yeap, that's ur problem. Grab a conductive pen and start drawing that L1.

[dustyslapper]

Its already unlocked Hans - but it wont post at 5*133!

I'm sure the problem is that I need to change the _default_ multiplier as it needs to run at 133*default for a few seconds. It seems that 12 is too high - I need some thing lower.

Is it something to do with the l6 bridges or something. Maybe I need to cut one or two for this to go properly :eek: There was a guide floating around ages ago - has someone got a link?

[Wibber]

got to tards hardware guide, there was a page there with a big table wth lots or cpus' bridge settings

[_N_]

hmm, well, on my duron 1GHz, I got a conductive pen and connected the L1 only. Booted up and it automatically says that the speed selected is wrong and I choose my multipiler and that's it.

[swiftynz]

i've had no problems getting my Duron 1200 to 9x133. the reason i've had no trouble is that the multiplier is set via dip switches on the board, thus it doesn't have to post @ 12x133.

i take it in your case that the fsb is set via the motherboard and the multiplier via the bios? on my ka266+ the fsb was fully adjustable in the bios as well as having the 100/133 jumper setting on the board. if yours has this, set it to 100 on the board and then bump it up in the bios.

[Humantuckshop]

Originally posted by dustyslapper
Its already unlocked Hans - but it wont post at 5*133!




Maybe the multiplier of 5x is no good. With my unlocked XP the multiplier of 10 is completely useless, yet with 12.5 the comp boots fine, and stable.

All the L6 bridges do is set a certain multiplier, by unlocking the L1 bridges you should be able to set any multiplier you want, although it doesn't always work out that way.

Did you use a cheapo pencil or a pen to unlock it? I recommend the pen - more reliable and provides better conductivity than the pencil.

[_N_]

well, with my one unlocked I can OC with dip switches, or thru BIOS,
that 5x might be too low, from memory my mobo won't go under 6x for example.

[Ragnor]

Make sure it's nothing else holding you back..
Make sure your mobo supports 133, that is has correct dividers so that when you run the FSB at 133 the PCI bus and agp bus are run at the right speed (33mhz for the PCI, 66 for the agp),

Make sure your ram supports 133..

Are the mobo dip switches set right? bios options set correctly?

[asanthadenz]

edited:

hey mate can you please tell me other hardware you got running on ur system, eg Network card etc etc, cause i think it might be one of your hardware that's holding u back frm reaching the 133mhz FSB mark.

[swiftynz]

*shakes head*

asa, your last post makes me wonder if you actually read the first post.

he's already said that his cpu is unlocked and he already HAS changed the multiplier in the bios... :rolleyes:

i'm not going to retype whats already been said, read the thread dude.:p

[dustyslapper]

To give you guys a better idea:

My chip is fully unlocked - I can run it between 500-1250 on a 100fsb. It looks stable up to at least 1400 as far as I have tested on default volatge.

My board has one jumper to select between 100-132 and 133-165+ fsb. At 133 the pci & agp slots will be running at 33 & 66 mhz. My ram will be at 133mhz. Its not any pci or agp or ram issue.

I have tried the multiplier at 6, 7, 8, 9, 9.5, 10 and nothing is booting at 133.

I think the problem is that my board always initially boots the chip at 133*default mulitplier. I think the bios needs to startup, or initialise or something, before it then changes the mulitplier and fsb as per user settings. So regardless of the settings I give this thing (ie 133*7 = 931mhz) it always tries to boot at 133*default (133*12= 1596mhz) and my chip can't handle the speed for the two seconds it takes till the smartsettings kick in.

If I hacked my chip to an unlocked 1000 instead of an unlocked 1200 I think I could post at 1330, and then I would have access to fsb greater then 133. Unlike at the moment where I have it on a 111 :(

Has anyone seen a more recent guide then the tards-HG one? He wrote that when Athlons were about 1100mhz, and something that takes into acount morgan chips or at least higher specced athlons would be nice.

I hope this gives y'all a better idea of what I'm trying to do...

[Wibber]

actully I saw a XP unlocking guide site that had somethig like that, I try find it for you

here tis:
http://www.ocinside.de/index_e.html?/html/workshop/socketa/xp_painting.html

[Nebulus]

As the Durons haven't changed like the Thunderbirds/XP did the XP unlocking guide is kinda useless in regards this situation.

Whats the stepping code of your duron, my duron 1.2 which posts at 140fsb nicely is of ANDA stepping.

[dustyslapper]

Thanks Wibber - I have print-outs of the Tbird/Duron paint page from that site. Going from a 12* to a 10* at the end of this week I think.

Going to have to cut four bridges - I'll take a look at them when I get home and see if I really want to go ahead. I'm pretty certain I will - might have to take a trip to find a decent cutting implement now :)

Its going to voide the warranty, but its a cheap chip, y'know?
------------------------------------

Nebulus,

Can't remember the setting, I'll take a look when I get home. Not the worlds best overclocking chip as yet, but its a matter of time ;)

[SecretSquirrel]

I have a Duron 850 that wouldnt run at 133 at any multiplier, until I replaced the PSU with a slightly less crap quality 350W job.

It ran very happily at 133 X default multiplier 8.5 :)

[KingJackal]

Lol - most of this thread is irrelevant.

Yes, you need to change the default multiplier.

That is ALL.

Nothing else. Go do that ASAP, and then you'll actually stand a chance of posting up there ;).

[Humantuckshop]

Dustyslapper - time for common sense, your CPU may just not want to run @ 5x133. That may be too low.

Your Duron is a 1200 right? Well try 9x133 = 1200MHz. Why do you need to cut any bridges at all?

As long as the L1's are unlocked you should be sweet - use a conductive pen not one of those cheapass ghetto pencils.

PEN = Permanent and better conductivity.

[dustyslapper]

Could be psu perhaps? Its riding on a horrible 230W supply till thursday/friday, and then its going a 300W enermax. When it powers on the HD spins as per normal, but the monitor stays dead. Having never had a chip not make it to post before does this sound like a CPU pushed to far, or should the display still initialise if the chip hangs?

I'll leave off any surgery till the end of this week, but I have a sneaking suspicion that I may have to get happy with a scalpel.

Humantuckshop: In my post above you can see that I have already tried the multiplier at 5, 6, 7, 7.5, 8, 8.5, 9, 9.5, 10 and nothing is booting at 133.

For an idea of my problem see the kk266+ review done right here at OCNZ:

Overclocking on this motherboard is easy and almost everything can be done in BIOS. However, it still has the same problem as the old KK266 - the 100/133 fsb jumper. If your CPU can't boot in 133 fsb with default multiplier, then you can't achieve 133+ fsb overclocking. This is the case with our Duron 850 and we only got 100~132 fsb to choose from. It's a pity that Iwill didn't make the KK266plus completely jumperless as it is an Overclocker's board. We are able to achieve 1008 Mhz (126x8) stable with our Duron and anything fsb beyond 126 will cause system failure.

So, assuming this new psu doesn't fix anything (I really hope it does :rolleyes: ) then does anyone have any good tips on how to cut bridges?

[Humantuckshop]

You should be able to blow them with a 9 volt battery.....

[SilverPriest]

umm, WTF u on about humantuckshop?
Why the hell would he want to put 9volts thru the bridges of his cpu?
Care to explain the reasoning behind that, as that sounds like spectacularly bad advice to me...
I would use a diamond tipped something or other, hehehe.
Actually i wouldnt, as i cant afford to replace my cpu, i would send it to hec (www.hec.co.nz) to have it done...

[Wibber]

Mird mumbled something a bout blowing them with a 9v battery or something , go ask him, might be easier than cutting

[mird-OC]

the battery method is the best way... quick, cheap, easy, and surprisingly painless. give you some hairs on your chest too.

[Humantuckshop]

Originally posted by SilverPriest
umm, WTF u on about humantuckshop?
Why the hell would he want to put 9volts thru the bridges of his cpu?
Care to explain the reasoning behind that, as that sounds like spectacularly bad advice to me...
I would use a diamond tipped something or other, hehehe.
Actually i wouldnt, as i cant afford to replace my cpu, i would send it to hec (www.hec.co.nz) to have it done...



OK - I'll explain it: 9volts through the bridges will blow them but it won't kill the CPU - people have done it before, you know. Mird knows all about it.....

[dustyslapper]

I've heard of people wanting to try this - have you done it?

[Humantuckshop]

Me? No I haven't had to, I always just unlocked the L1 bridges and I could set the Multiplier to whatever I wanted. Of course I never had the Iwill KK266 tho.

But if for some reason I had to do it, I wouldn't hesitate.


I will not and nor shall anyone else be held responsible for a fried CPU, your actions are your own.

:p

[whetu]

hehe i avoided all these problems by simply forcing the default mult on my durrie and my tbird to lower values

[SilverPriest]

mmk, was just wondering ;)
I'm still very wary of putting 9v thru the cpu tho.....

[dustyslapper]

How did you do it Whetu?

[SilverPriest]

he sent it to shoota @ hec (www.hec.co.nz)
;)