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Overclocking with the KT133A chipset.

JoLLyRoGer

JoLLyRoGer

Diamond Member
I've never OC'd anything before, but I've been studying about an here is what I'm looking at trying and I wanted a little advise.

I want to get a 1.1 or 1.2 t-bird and overclock it to 1.33g using the new KT133A chipset (ABIT KT7A). 133FSB x 10CM = 1330.

We all know that the AMD chips produce a lot of heat in the first place. However, I've also seen people post that they have gotten their 1.1's and 1.2 to post at 1.3 and higher. I also know that just like any forum these claims could be BS.

For those of you you have been able to run these chips that fast, here are my questions.

1. Do I really need a 1.2G to do this, or will a 1.1G hit it just fine?
2. How much heat does it make?
3. Is it stable?
4. What kind of cooling methods have you had to resort to? HS/F, Peltier (sp?) Plate, Liquid Nitrogen (j/k). What works best?
5. Any other good to know pointers before I reach for the credit card??

Thanks in advance for the info.

JR..

 
1. The 1.2s come unlocked already, and some people have had theirs running @ 1.4Ghz, so I would go with 1.2 if I was you.
2. Dunno.
3. Lots of people have very stable >1.2Ghz overclocks going.
4. FOP32-1 or FOP38 (they are the same HS just with a different fan, the 38 has a HELLA LOUD Delta 7000RPM fan)
5. Nope.
 
I would respectfully ask the pirate why he wishes to overclock in this way. he wouldn't even get 10% extra performance because the processor is running so much faster than the memory.
 
what do u mean travis? what pirate and overclock what way?

1. I doubt there is much difference in the 1.1s and 1.2s. They both are copper, its just the luck of the draw.

2. Supposedly alot, but i have my Tbird 900@1100 at 1.85V with an Alpha PAL6035 and a quiet little 19CFM 60mm fan on it and the heatsink doesn't even get warm to the touch
3. Should be stable, if not clock it down less.

4. Just a good HSF should work, no need to go to extremes for another 100MHz, unless you really dig that kinda stuff.

5. Try to overclock the bus as much as possible. Lots of performance is to be gained there. I'm running mine at 147mhz. If your memory can handle try like 9.5 X 145MHz=1378MHz.
 
That's just it Travis, I'm not exactly sure how fast I can push the FSB, I'm going to be using my old PC133 ram. And like I've said, I've never OC'd anything before, If I should be looking at doing something different, that's what I've come here to find out.
 
The Hedgehogs look a good fan, but if you want a quiter option, the Tai Sol CGK420 is good.
 
hey all,

i am wondering, when oc'ing your fsb, are you limited by the memory or by the cpu? can you oc a 1g or a 1.1g t-bird to 150fsb with bad ass memory?

thanx.....we will get this yet JollyR!
 
i wouldn't expect to hit 150 FSB with ANY type of memory, good bad or ugly. The athlons just don't do well with it. You may get into the high 140's with a 133A board.
 
As for the 1100's, there was a thread going at the AMD Zone forums awhile back about some of the 1100's not overclocking very well. I read the thread too late, after I purchased an 1100 from the for sale forum. At a straight multiplier overclock, I could get alittle better than 1200 max. With my KT7AR, I could run an 800 multiplier and 146 FSB.

Some of the 1100's seem to be doing better, but with the chance that you may end up with one of the ones that do not OC well, I would go for the 1200. From what I have been seeing, they are not locked, and have been overclocking very well on the KT7A boards.

As for cooling, an Alpha 6035, or Hedgehog work very well, and will keep your T-Bird cool enough.

As for stability, mine has been nothing but stable from the start, and if you look around the forum, most people have been very happy with the KT7A RAID boards. They do not seem to have the problem of reducing the multiplier and raising the FSB like some of the EPOX's and others have been. I have run a couple of 900's and this 1100 at reduced multiplier/raised FSB's with no trouble booting and running very stable.

I am going to get a 1200 to replace this 1100 very soon, since most of them have been hitting 1350 + with no trouble from what I have seen.
 
Thanks a lot for the good info Technonut and everyone else that has replied. 😀😀


<< With my KT7AR, I could run an 800 multiplier and 146 FSB. >>


AAhhhh, I understand the meaning now. Thx😉

Anything else I should know?

JR..
 
Hmmn -

Can anyone else comment on what Technonut is saying. I was planning on getting a 1.0ghz Tbird myself, on the theory that it would be Dresden copper core, and be as luck of the draw upper end clockable as a 1.2ghz, probably.

Do others know this not to be true? How sure is it that a 1.0ghz Tbird will be a Dresden copper job these days?
 
The best that I can do with this 1100 with a high FSB overclock, and my RAM set at CAS2 Turbo, and all settings maxed out as I like them, is with the multiplier dropped to 800, and the FSB/PCI set at 145/34 + 1 = 146 FSB. on boot up it posts at 1168MHz. WCPUID reports it as 1170.51MHz, which is accurate. My RAM is at 146MHz CAS2 Turbo.

I can run alittle better than 1200 at a straight multiplier overclock, and low FSB. But with the T-Bird running at a 146 FSB, and DDR of 292.63, the performance is much better.
 
He is talking about a Phase Change Thermal Pad that comes with some heatsinks, and there is much debate on the subject as to whether Arctic Silver performs better. In my experience, the Arctic Silver performs better.
 


<< Artic Siver does not offer much lower temperatures of PCTC >>



True,but at that overclocking speed it should help a little.

🙂
 
Hi I'm building myself a kt7a-raid-based system, I already have the board (waiting kingmax PC150 stick to ship to get the rest)

I want a Geforce 2 GTS and I can get v7700 for reasonnable price. Lots of people reported on dejanews that they have stability problem with kt7 and GTS card.
😕
 
maximaximax -

Really?? That surprises me. I mean, I bet most of the people who buy Abit KT7 or KT7A boards, raid or not, have Geforce2 GTS cards.

I wonder if those complaining on that board had weak power supply problems. You know, combine a Geforce2 with an overclocked T-Bird, and you want at least 300watts.
 
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