[RESOLVED] overclocking an amd k6-2 400

[Leachburn@aol.com]

hi, i just bought an amd k6-2 400 and want to overclock it. i want to bring it up and extra bin cycle so its 500mhz but im not sure if the chip should be able to handle it. im waiting for advice otherwhise ill probabbly take it up a half bin to 450mhz that and/or change the bust speed from 100mhz to 105 or 112 or another number in that range. im new to overclocking and waiting for any suggestions you may have for me. mail me at leachburn@aol.com if you can help me out here. thanx.

[Darren Wilson]

If you knew that you wanted to overclock, I would have gone for a Celeron 300a instead of the K6-2. Much more stable.

Read the onerclocking topics on the following sites for more info.

http://www.anandtech.com
http://www.bxboards.com
http://www.tomshardware.com
I agree with Clauded below.

My boss has an AMD K6-2 400 ( not overclocked ) with more than adequate cooling ( 3 chassis fans + VERY BIG CPU Fan ) yet his CPU runs at over 140 degrees Fahrenheit, yet my PIII 500 runs at only 89 degrees F & the girlfriends Celeron 366 ( overclocked to 5.5 x 75 ) runs at a steady 105 degrees F.

I have the same chassis fan construction as my boss yet the girfriend has no chassis fans at all installed.

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Who got game???? I know I do!!!!!!!

visit me @ http://www.ace-computers.co.uk

[This message has been edited by Darren Wilson (edited May 31, 1999).]

[clauded]

hi,i have been working with amd for quite some time and tried overclocking all their newest cpu,and i don`t care what they on certain sites they ,don`t overclock worth a damn,if you want a stable working machine then don`t overclock the amd cpu,as they tend to run hot and even if add cooling after a while you will get all kinds problems,you can try if you want a fooling around machine, but not if you need a steady and stable machine,the celeron is the only way to go for overclocking,cheers Clauded

[chemwiz]

I sell mostly AMD machines, and I've always been able to overclock at least one step. Try running a 400 at 450 with 2.4V or 2.6V, it almost always works.

[gnslngr]

Go to bugcomputer.com and get cpuidle.
You'll find that it will cool down the cpu approx. 10 degrees F.
My K6-2 300 runs @ 82 degrees F.
Hey Darren.. How about sticking to AMD'S instead of pushing Intel. We're here to O/C AMD processors. Please, let's stay on track!!
[This message has been edited by gnslngr (edited June 04, 1999).]

[This message has been edited by gnslngr (edited June 22, 1999).]

[danzig]

I to have tried to no avail to overclock my AMD K6-2 450. It will boot to 500 and lock at the windows desktop with a windows protection error. I have went all the way to 2.6 volts - tried every possible bus speed and clock multiplier with no luck . I also have had a hard time keeping my at 140 degrees. I think the AMD's are running pretty close to maxed out.

[omega@trip.net]

If you plan to overclock any cpu it must be a celeron. AMD K6 CPU run hot to begin with why chance a blue screen. Its just as cheap to get a faster dependable chip or revert to the celeron. Why chance a customers data and time. Take it from me I have been custom building for some years seen many of techs come and go only because they wish to cheat spec.

[rusabus]

AMD seems to have a hard time getting their CPU's to run fast in high yields. You notice that Intel is a good 100 megahertz ahead of AMD with their top chips. I think AMD tries to push their chips a bit more than Intel does -- to reduce price and increase performance. While you can hardly beat an AMD chip for standard clock price vs. performance, their apparant lack of overclockability (or rather factory overclocking) can somewhat nullify their value.

[H-Bomber]

I would have to agree with Rusabus, the AMD chip are good for what they are as is. They tend to show similiar problems to Cyrix chips with heat and lack of overclockability, due to the fact AMD and Cyrix dont have the threshold Intel do (Whatever is written on the AMD or Cyrix chip, is pretty much all your going to get from it). Although it would be very interesting to see how the new AMD K7 chips perform overclocked. Changing the form over to their propriatary Slot 1 type format will hopefully show similiar results to Intels Celeron's and PII/PIII's.

Omega: I have only been a tech for about 6 months (If you can honestly call me one with the lack of experience I have, but I am learning more, thanks to forums such as this) but you will find that those who overclock PC's on this forum (I would like to think at least) most probably dont overclock a PC and sell it to a customer. Most of the people who post on this forum are either techs or computer enthusiasts/hobbiests who like to really test their machines. When I wanted to upgrade my PC I never even considered a Celeron (looked more towards AMD since a PII was out of my price range and the Cyrix I was using was pretty hopeless for games) due it's poor reviews, but after the Mendocino was released, I reconsidered my options and done a lot of reading on the subject and attempted it. Sure I let others know of my success but I give them the option based on available resources. Suffice to say, I know a lot more about CPU's and motherboards than I ever did. Great to read about it even if I had backed out. Certainly, overclocking/ re-marking chips and then selling them is wrong without the client knowing, but I would think that most people would only go a Celeron due to it's overclockability.

[chayes]

I have an AMD kII 366 that I've had up 24X7
for the last 41/2 months, and it's clocked at 400. (gigabyte 5ax m/b) Thing is more stable at 400, than at the 366 it's designed for. I ran this chip at the rated 366 for almost a month before clocking it up. Since the jump up, it has become one of the best boxes I've had. Cant hardly MAKE it crash!!!
I also had that chip on another M/B (cheap) and it wouldnt run properly at ANY speed.
Oh well...for what it's worth....

[Jman]

You might be able to get away with overclocking to 450 but don't count on 500.
That's to big of an increase. Some intel chips (except celeron) can't even handle that much of a jump.

[Bane]

Actually I have a 300 OC'd at 333 without any problems, it *NEVER* crashes or locks up I love it!

But the sad news is I couldn't get it to run at 100Mhz... ah well...



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Brandon Gresham
Murray, UT

[Jman]

I don't know if it's me or you that is doing everything right, but at the moment it looks like me. I own a Amd K6-2-350 and it has no heatsink and one fan. My temperature as we speak is 89* F. When I'm using an intense game it gets as high as 110* F. That's all. It sounds like some people have been ripped off. I would suggest looking at that processor and making sure that a sales person put a legit 400 in your bosses machine. Sounds like only a 350 to me.

Be that now gives me more incentive to overclock mine to 400 knowing that it is running this cool now.

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Think about it, but not to hard don't want to give you a headache.

[Jman]

Well a minute ago I overclocked my 350 to 400mhz. The normal temerature was around 90, now it's 102. I consider this a great success. Looks like I might be able to take upto 425 or higher in the future.

So far nothing has crashed or locked up. I will keep you up to date in the coming weeks.
I am currentluy using win95 and thinking of adding Linux, any suggestions or comments??

And will Linux be easier on the chip??
Thanks

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Think about it, but not to hard don't want to give you a headache.

[Jman]

Well I felt like going up another notch and it worked!! My AMD K6-2-350 is now on a 105 mhz bus runing at 420MHZ!!!!!!!!!!!!!

Still no voltage increases or anything!!!!!
Average temp 110*F.

Maybe Next week I'll take it up to 450 MHZ!!!

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Think about it, but not to hard don't want to give you a headache.

[Jman]

Now after several restarts win95 is having error messages and making me restart. I changed the settings back to 400mhz and they are gone.

Now I increased the voltage to 2.4 and so far everything is sable. As far as overclocking to 450 how high can I increase the voltage without frying the cpu?

Please leave your thoughts and suggestions or e-mail me. Thanks

Currently running 105 bus 420 cpu temp 115-125 130max

[This message has been edited by Jman (edited June 30, 1999).]

[This message has been edited by Jman (edited June 30, 1999).]

[This message has been edited by Jman (edited June 30, 1999).]

[DaveP]

I have been overclocking amd k6-2s since they first came out, my current one is a 400 overclocked to 450, I have never had a heat problem with any of them.