Please help! Chaintech CT-7KJD

[wizard101uk]

Hi folks!
Hope someone can help me with this.
I have a Chaintech CT-7KJD motherboard with the latest BIOS upgrade with 256 MB DDR RAM PC2100 and a AMD Athlon at 1.33GHz socket A.
My problem is that the front bus speed is 100 MHz, I think it should be 133MHz.
So when I checked the motherboard book and looked inside the PC I found that the jumper was set to 100MHz.
So I changed it to pins 2-3 for 133 MHz, but when I booted up post says that I have a 1GHz Athlon.
The book says there is a SW1 on the board to change the external clock freq, but my board doesn't have it.
The only thing I can see is on the BIOS frequency/voltage control where it has the CPU Vcore Select which is set to DEFAULT
Auto Detect DIMM/PCI Clk which is ENABLED and CPU CLOCK which is set to DEFAULT.
The book says this is for selecting a subtle speed of the CPU Front Side Bus for overclocking, But I don't want to overclock I just want my system to be set up the way it's ment to be.
So is my 100 MHz CPU BUS SPEED CORRECT for the motherbaord, CPU and DDR RAM?? If not what do I do?
THANKS FOR YOUR HELP!
:confused:

[Bovon]

Most AMD processors come to the user locked. The mainboard see this and will only allow the board to run the processor at the default 100 mhz fsb for a locked cpu. You can unlock the processor by closing the L1 bridges on the ceramic base. Some people use a certain pencil with a certain hardness of the lead to close these bridges. More and more, we are using a conductive ink pen which is used to reconnect or design in traces on a PC board. This is permanent where as the pencil lead trick will wear off later. Once the cpu is unlocked, your board will recognize the cpu as being unlocked and allow the 133 fsb settings.

I am not familiar with your board, so I am guessing it actually has 133 fsb capability, which you say it has.

[wizard101uk]

Thanks for the reply, But does the AMD ATHLON 1.33 GHz run on 133 MHz FSB or 100 MHz if 133 MHz how do I get the system to accept the 133 MHz FSB and to get the CPU running at 1.33 GHz,
with the problems stated above??
Thanks:confused:

[Bovon]

Like I said...take the processor out of the system, look very close at the L1 bridges...may need a strong magnifying glass, they are very little. If you can see a laser cut thru these L1 bridges, they must be re attached by using some conductive process like using the conductive ink. Without the bridges being complete, your mainboard will only run it at the default 100 mhz

Read here about this process:

http://www.sharkyextreme.com/hardware/articles/amd_oc_10-00/

http://www.pusateri.org/cruft/images/thunder.html

http://motherboards.org/articlesd.html?articleid=44&pagenum=1

http://www.athlonoc.com/unlocking.php

http://www1.anandtech.com/showdoc.html?i=1345&p=3

I have not checked into some of these sites in a long time, so some may not be there any more.

Sorry, I did not answer your specific question. Yes...the Athlon will most definately run at 133 fsb...but only if it is unlocked.

[wizard101uk]

Thanks for the help! I have found the problem in which Chaintech had F**KED UP the motherboard book.
As a result of this the position of the jumpers in the manual for the jumpers example 100 MHz is pins 1-2 but on the board its pins 2-3.
:D :D

[Bovon]

Good, glad you got it going your way. There were a number of boards a year or so ago that had the wrong jumper setting in the manual, but I haven't read of this in the recent year or so, so I didn't even think about that possibility.

[wizard101uk]

No as you can see I don't think about the book being incorrect.
When I buy something that has a manual I presume that the book is always correct, but that will change now!
Would I be correct in saying that:- Instead of taking off the heatsink/fan to find out if it's 100 MHz FSB or 133 MHz, Is the 1.3 GHz Socket A 100 MHz and the 1.33 GHz 133 MHz?
Just a thought.

[Bovon]

Originally posted by wizard101uk

Would I be correct in saying that:- Instead of taking off the heatsink/fan to find out if it's 100 MHz FSB or 133 MHz, Is the 1.3 GHz Socket A 100 MHz and the 1.33 GHz 133 MHz?
Just a thought.

Well, I am not an overclocker, and there are terms I do not completely understand concerning the 133 ghz deal. But...here is what I do know, and I hope it answers your question.

All of the Athlon and Duron socket A processors will run at the 133 ghz fsb (this is after the early 600 to maybe 800 mhz birds and Durons, which never quite made it to 1 ghz range). The processors have these tiny links out on the ceramic base called bridges. The L1 bridges are what allows the cpu to run at 133 ghz. The factory laser cuts these bridges on many of the processors before shipping them, why?..I do not know. These with the cut bridges will run at 100 ghz and up to what ever fsb range is permitted with the mainboard...many will go up to about 132 ghz if the cpu is locked. When the L1 bridges are reconnected, the mainboard will recognize this and will then allow the 133 and up fsb settings to be used.

If your board has settings for 133 ghz and above, and if you attempt to set your board for 133 fsb and it will not work (also, setting the proper multipliers first, like 10 X 133 for a 1.33 ghz bird at 133 ghz fsb, rather than 13 X 100 for a 100 ghz fsb). Then the possibility that the cpu is still locked is pretty good. The board will not allow the 133 fsb settings to be used unless the cpu is unlocked.

[wizard101uk]

I understand what you are saying about the bridges being disconnected.
But if we leave them alone for now, What I was saying or asking if you refer is that the 1.3 GHz ATHLON is a 13x100 MHz FSB (13 multiplier x 100 MHz FSB) and the 1.33 GHz is 10x133 MHz FSB (10 multiplier x 133 MHz FSB)
If I am correct, I should have known that my processor has a FSB of 133 MHz without having to look at the processor itself.
:)

[Bovon]

I am not 100% sure of this, but I think the 1.3 ghz and the 1.33 ghz processors are two different processors..(yep, I know..its a given, but trying to define my thoughts here)

Now, both the 1.3 and 1.33 will run at either 100 mhz or 1.33 mhz fsb if the bridges are intact.

I really don't know why AMD put out two different processors so close in base frequency range, but they did...maybe a different factory with a different fabbing process??...could be, some are fabbed in Austin Texas from aluminum interconnects and some are fabbed in Dresden Germany with copper interconnects. The Dresden Athlons with the copper interconnects have always been the best...the aluminum processors run hotter than their copper counterparts.