Problem with O/C Duron 800MHz!!!

[Morjo]

Ok, I have a Soltek SL-75KAV mobo: http://www.soltek.com.tw/English/product/75kav.htm

And a Volcano 2 HSF, with one case fan at the front of the case.
Now with my system at default speed 800Mhz, I get an idle of 27 degress, and a full load of 45 degress.

Anyway, I wanted to O/C my cpu, and when I boost the FSB up a wee bit, to say 110 (880Mhz), the BIOS will detect the new speed. But when I boot into windows 2000, it gives me a file not found error. But when I put it back to the defualt CPU settings I get no windows errors.

Also when I try to get higher than 880Mhz, my BIOS will not detect it, and put it back to 800Mhz again. Then I try upping the voltage but that does not help either.

This mobo was made for O/C, and still I can't overclock at all really.

Any suggestions or help at all???

Cheers!!!

[Rottys-R-Us]

This might be a silly question BUT have you closed the L1 bridges?

[Morjo]

No, sorry have no idea how to do that.

[UnseenMenace]

Information on closing the L1 Bridges can be found here
http://www.overclockers.com/tips475/

[Morjo]

How come can't just O/C by upping the FSB?

Is there anyway of f******* my Duron up if I don't unlock it properly?

[Rottys-R-Us]

Morjo (May 31, 2001 04:21 a.m.):
How come can't just O/C by upping the FSB?

Is there anyway of f******* my Duron up if I don't unlock it properly?

The bridges are laser cut so you CANT. Meaning LOCKED. That's why you cant.

Yes you can screw up the chip.

Just take you time, use a mignifing glass.

Dont take this wrong, but if you are in so much of a rush, maybe you should not be into overclocking.

There is luck and skill, and slow going not to kill a sys.

Plenty of people have CPU key chains to prove it myself included.

Good Luck.

Dave.
Slowly grasshopper :-)

[Morjo]

Well I am in no rush at all.

Anyway, I have PC133 ram, so I don't understand why I can't let it go upto 133FSB anyhow.
And where can I get one of those special pens that you use to cross the L1 bridges?

Thx!!!

[wild_andy_c]

Morjo (May 31, 2001 06:57 a.m.):
Well I am in no rush at all.

Anyway, I have PC133 ram, so I don't understand why I can't let it go upto 133FSB anyhow.
And where can I get one of those special pens that you use to cross the L1 bridges?

Thx!!!

You do have the board set for 133Mhz as default ?
You have upped the voltage ?
You do have a good thermal interface between die and heatsink ?
You are running sensible memory timings (not +33Mhz or anything that cheap memory cannot handle)

[Morjo]

ok wild_andy_c, thx for your fast reply, read my first post on this post and it will answer some of your questions.

Anyway atm, my Duron is at 100Mhz, 8X100. Anway how come I can't boost it above 110 FSB even if I up the voltage. I was hopeing to get 8X133 (was going to get a better HSF).
I don't really want to unlock the L1 bridges just incase I stuff it all up (which is just what will happen, with my luck atm).

Cheers!!!

[Rottys-R-Us]

Morjo (May 31, 2001 07:13 a.m.):
ok wild_andy_c, thx for your fast reply, read my first post on this post and it will answer some of your questions.

Anyway atm, my Duron is at 100Mhz, 8X100. Anway how come I can't boost it above 110 FSB even if I up the voltage. I was hopeing to get 8X133 (was going to get a better HSF).
I don't really want to unlock the L1 bridges just incase I stuff it all up (which is just what will happen, with my luck atm).

Cheers!!!


Why don't you like to listen to us.

You HAVE to unlock the L1's, END of story on that L1 subject !!!!

No unlock no overclock !!

Good luck on the pen. Try the Rear window defoger repair kit, most Automotive store should have it.

I have generic SDRAM PC-133 @ 136 right now.

[n2]

exactly as Andy stated...
you have a 100mhz chip.. which is "Locked"
you CANNOT run higher AT ALL....
unless you UN-Lock the chip.
seems rational right?

this does DEFEAT all and any of the mobo's jumpers, yes, even the 100/133 mhz fsb jumper.
you also will find the voltage is adjusted through the bridges also, requiring further mods :)

[oc jason]

Connect the L1 bridges(unlock)- that will let you up the FSB

I think that you gotta connect the L6 or L7 birdges(unloak)-that should allow you to up your voltage-

Also if its unlocked and you can tget a high FSB lower the multipier-of maybe you only have a kt133 chipset not a kt133a

[Morjo]

Ok looks like I will have to unlock the L1 bridges.
But why do I need to have a lower multiplier to get a gugher FSB?
Do I just have to change the L1 bridges or are there more?

I don't think I need to change the L7or L6 bridges becuase I can already up the voltage.

Nope, I know for sure I have the Kt133a and not the kt133.

Also will the the Rear window defoger repair kit stay there when I connect the L1 bridges, or will I have to reconnect them after a while like with a 2HB pencil?

Thx, you guys have been very helpful.

Cheers

[Morjo]

bump

[tweeknfreek]

Duron 800 is a great o/c cpu as you can see by my sig it is running totally stable I used a #2 pencil for my L1 bridges and have had no problems just make sure they dont touch each other (very pointy led tip you can always erase if you mess up as I did a couple of times, paint you can't) my board has dip switches for fsb and cpu multi you can use when bios and other jumpers are in jumper mode I'm running 137mhz bus speed no stability probs with mem. I also have a 850 Tbird and couldnt get it past 950 stable no matter what I tried I think that is due to the default voltage diff between Duron (1.5-1.6) vs Tbird (1.7-1.75) as you can see you can get alot more voltage increase with Duron, keep trying and be patient sometimes you have to o/c in stages and let system run for awhile at each setting to become stable at higher settings. Peace and Happy Oclocking

[Gunjaa]

Face the facts chuckles..... u got a DUD....

[seadog]

I was also able to get my first Duron 800 to 1030 (10x103) by unlocking with a pencil on a MSI pro2a board. Most 800s will do 1 gig or better with the Vcore maxed out and sufficient cooling.

But I must disagree with some of the earlier posts in this thread concerning the L1 bridges. It is not necessary to close your L1s to overclock by fsb alone. Early on I had my 800 at 848 (8x106) before I even touched the L1 bridges. I have viewed many other posts from people who originally tried fsb overclocking before unlocking their chips. For additional confirmation on this check out the "Unlocking Durons" section on page 4 of "One Persons Basic Approach to Building a Computer and Overclocking." You can find this article on the Home page under Beginners Guides.

The advantage to unlocking your Duron comes from being able to lower the multiplier to allow a higher fsb and still stay below the maximum attainable speed of your particular chip. Your ability to overclock by fsb alone will eventually be limited by the component in the system that is least able to handle the accompanying higher pci and memory bus speeds.

[jr]

I had a duron 650 that wouldnt do over 800 I closed the l7 bridges all 4 to give me 1.85v default at post. IT then would post and run at 1050 no problems. Actually if you are going to overclock using just the fsb it is not neccesary to close the L1 bridges(FACT!). You will probably want to though to have the multiplier options. While your at it close all the L7 bridges also. Get a decent heatsink fan combo also. 45c under full load at default is not good temp. Tye reasoning behind closing the L7 bridges is most bios voltages wont kick in untill after the processor post. So you are trying to post at a much higher speed using the default voltage. When you clse the L7 bridges the mb now sees default at 1.85v and will post at those volts enabling you to post higher and get at least 100MHZ more out of your chip. When you set the voltage in bios it will not take affect until after the processor post initially. Often this is too much for default voltage and you get no post so people just give up figuring it is the chip limit when it is usually not. Close all the L1 and L7 bridges and dont worry too much man they only cost $40.

[DE]

n2 (May 31, 2001 09:56 a.m.):
exactly as Andy stated...
you have a 100mhz chip.. which is "Locked"
you CANNOT run higher AT ALL....
unless you UN-Lock the chip.
seems rational right?

this does DEFEAT all and any of the mobo's jumpers, yes, even the 100/133 mhz fsb jumper.
you also will find the voltage is adjusted through the bridges also, requiring further mods :)

No to all of the above. Adjusting the FSB has nothing to do with the mult. The only time you need mult changes is to lower it to up the FSB. I can run stock mult at 133. And how does this defeat the 100/133 jumper? Certainly doesn't on my board (epox). Is this board a special case?

[DE]

Morjo (May 31, 2001 04:17 p.m.):
Ok looks like I will have to unlock the L1 bridges.
But why do I need to have a lower multiplier to get a gugher FSB?
Do I just have to change the L1 bridges or are there more?

I don't think I need to change the L7or L6 bridges becuase I can already up the voltage.

Nope, I know for sure I have the Kt133a and not the kt133.

Also will the the Rear window defoger repair kit stay there when I connect the L1 bridges, or will I have to reconnect them after a while like with a 2HB pencil?

Thx, you guys have been very helpful.

Cheers

If you have a 133a skip fsb 100-132, go straight to 133, the pci divider should be correct there. The file not found error is usually because the pci bus is out of whack between 100 and 132 and over 133. Thus your hard drive can't handle the higher bus speed. First lower the mult to the lowest setting, reboot, then switch to 133. It should run fine. I can run at 133 at the default mult on a tbird 750. or 155 if i lower the multiplier.

[Morjo]

I don't get it, why do I have to lower the multiplier to get a FSB of 133. Why can't it do 133 FSB at 8 multiplier???

Cheers

[Mojo]

Well i wouldn't try unlocking the L1 bridges cause i screwd me new Athlon 1ghz AXIA :(
and my mobo its same one as u got soltek 75kav i think u changed some settings in the bios to make memory faster so go to bio change it to defult and have the max Vcore and change FSB and if it still wont boot then take all your pci card out except video card thats if its pci and change the FSB u should be able to get high FSB cause something is stopping u one of your pci cards

[D4RK3N]

The CPU can be overclocked on the FSB alone. I have a Duron 650 and it runs stabely at 863 mhz by simply setting the FSB from 100 to 133. I have even tried this with the L1 bridges open (no pencil lead or anything on them). My problem is that I can't unlock it. I have tried everything from pencil graphite to Treasure Gold which is found at Wal-Mart in the crafts department. Im not sure if it has conductive properties, but from reading the package it says it can tarnish...well, copper tarnishes, so maybe it has copper in it. But as far as it being conductive, I have no clue. But anyway, the point is, the CPU can be overclocked with the FSB alone.

[Morjo]

But as you have been told, when I boost my FSB, windows gets errors, or the BISO will put the FSB back to default.

I have not tried 133 FSB should I give it a go?

Also, if I use a 2HB pencil is there anyway of buggering up my Duron if I don't unlock the CPU properly?

Cheers

[D4RK3N]

Yeah, give 133 a try if your RAM is PC133. The only way of buggering your CPU by connecting the L1 bridegs would be if you crossed them. Just be sure that you dont cross connect any of the bridges. There are plenty of sites with info on doing this..some with very detailed information/pics. Do a search at Google and see what you can find.

[supraway]

Ok, here is my attempt at clarifying everything.

1. You DON'T need to unlock the L1 jumpers to overclock by FSB.

2. You absolutely need to raise the voltage to get your CPU running at higher speeds.

3. 45C isn't a horrible temperature for Durons, I've seen them running at 80+ for extended periods of time, but they will become unstable.

4. Try updating to the newest bios for your computer, that may help.

5. Make sure you have good contact between the heatsink and chip, for some reason, 45C seems high for your amount of cooling.

6. Your Duron may not be able to handle the increased speeds. You take a chance with overclocking, and your processor may be a lemon and won't overclock well.

7. Since you are upping your FSB, you should consider bringing your IO voltage up to 3.4 or 3.5, it will help your overclock.

8. Try different ram. You may have crappy ram too.

9. Make sure you have a decent PSU, you probably want a 300 watter :) to do this. 250 is okay, but may not be good enough.

10. Last one, I PROMISE!!! Try burning your processor in at the highest speed you can go for a day or so, with high voltages, then try going higher, and once you find a good spot, leave it there.

P.S. I don't know anything about this motherboard, but if it has jumpers AND bios settings for FSB or Multiplier, try each one individually.

[Morjo]

I have a 350 Watt PSU, 256 PC133 Hyundai Ram and I can change the FSB and the voltage in the BIOS.

BTW What do you mean by "IO voltage up to 3.4 or 3.5"?

Cheers

[-inox-]

here goes
i got a duron 700
to overclok it this is what i did

read loads on webpages especially on here
i then
inceased my Vcore to the highest which was 1.85
i then increased the fsb thus giving me faster speeds

the i/o voltage is the voltage which all your components and stuff run at so if that wrong then you wont get anyware i found i had to decrease this to make it stabble so thats how i i got 933 out of my duron 700

this is how i did it and you shouldnt try overclocking if you are not sure what to do or have crap cooling other wise have fun