AMD Mobile 2600+

[Tougas]

Specs
AMD Mobile 2600+
Epox 8k3a (kt33a)
512 stick of pc2700 crucical

So I set fsb to 166 and I tried to put multiplier to 15 but when I do and save changes to bios, upon bootup it resets to 5x. The max I can set the multiplier to is 12.5. Anyone familiar with the 8k3a board? suggestions?

 

[Concillian]

Normal for a desktop board.

AMD uses the same bit sequence to represent the very high and very low multipliers, and depending on the type of board they will select to short two pins or not. Desktop board typically do not short the pins and will run the lower multipliers.

13x = 5x
13.5x=5.5x
etc...

You need to short two pins either on the CPU or the socket. Most people choose the socket because it's easier to do. There is linkage to a tutorial, but I don't have it in my bookmarks. I know this question gets asked often enough that you can probably find it searching back even in the last week or so. Or someone will probably post a link to the tutorial.

Edit: okay here is the pin/socketmod site that shows what pins you need to short:
http://www.ocinside.de/go_e.html?/html/workshop/pinmod/amd_pinmod.html

Just choose the multiplier for unlocking higher multipliers in BIOS
Choose the socket view
Now cut open an old IDE/floppyy ribbon cable and take a SINGLE strand of wire and bend it into a U-shape and insert it in the socket between those two holes. Now 13x will be 13x instead of 5x.

 

[Tougas]

Alright awesome, thanks a lot man.

 

[trexpesto]

I have a frazzled copper stereo antenna wire that I used. It's nice because it is real small diameter. I would pound it somewhat flat with a hammer, at least on the top where it is going between the socket holes, so that it doesn't tilt the CPU too much, cause of the heatsink pressure...

I guess you could make a little channel for it in the socket to keep it from sticking up too, just watch out for the crumbs.

 

[Tougas]

Now, when you say one piece of wire, you mean one tiny piece of wire right? this thing is tricky.

edit: didn't work, but following what you said, the 2 pin short, the guide says that works for up to 12.5x. are you sure I'm not supposed to use a different guide?

 

[Avalon]

Well, to explain your original situation in general terms...the only desktop boards that don't require modification to use higher than stock multiplier are the Abit NF7-S and DFI Infinity/Lanparty boards for the NF2 Ultra chipset.

 

[Tougas]

Ok, so this isn't my motherboard specific, but I want to run it at 1.6 volts, 166 fsb, and 15x. So should I use those values for the guide and try to short all of those pins?

 

[Jen]

use the guide you linked to get the multiplier you would want

for voltage do the same.


the only other option is a xp-tmc multiplier changer which would cost another 30 and it has no v core options


Jen

 

[Tougas]

Thanks Jen, do I change FSB in bios or should I use the guide for that too?

 

[Concillian]

FSB is in BIOS in all cases. That is a motherboard parameter, not a CPU parameter.

 

[Tougas]

Question:

I did it successfuly and multiplier is 15x. It runs at about 38C and reboots upon login screen for win2k. My problem is that I set voltage to 1.6 I think I should try 1.65. Is it necesary that I set voltage by shorting pins? I can't just do it in bios? :\