Unlocking Higher Multiplers for Barton Mobiles on older Chipset Boards

jenious · 11-14-2004, 04:21 PM

I had to deal with this today so I thought I'd post the solution for those of you who might run into the same problem.

I had an old Asus A7V400MX KT400 chipset motherboard and it wouldn't allow for any mults above 12.5x and does not allow for any multiplier manipulation (either through a jumber or in the BIOS) so the board (and many other older chipset boards) will only pick up Mobiles at sub 1Ghz Levels since the higher mults are shared with lower ones meaning that a Mobile 2500+ gets auto detected at 5 x 133.

Basically in order to unlock the higher multipliers you have to short out the connection between the two pins shown in the attached diagram (View is top down looking at the empty Socket)

All I did was take a single copper strand out of a piece of speaker wire and form it into a U shape before dropping it into place in the circled slots. Worked like a charm. Have it running at 14 x 166 now which is a pretty darn good upgrade from a 1.4Ghz on a KT400 mobo

(NOTE: This will not work to unlock higher mults on already locked AMD chips...I tried...only work no already unlocked procs.

Rbreb13 · 11-14-2004, 04:33 PM

Good job. I had to do the same thing (wire mod) on my Dual Xeon sockets to get more voltage. I dunno know about you but my old eyes had a hell of a time with it even with a magnifying glass. But then I had to do six wires to get mine done.

jenious · 11-14-2004, 04:37 PM

Ha Ha...yeah took me three.

Rbreb13 · 11-14-2004, 04:44 PM

Three trys? I meant I had to do 6 wires. 3 in each socket! What a PITA
Over a dozen trys

jenious · 11-14-2004, 04:46 PM

Ha Ha, yeah I meant three tries, only one slot. The wire I used was crazy small and I had very little light. Used a pair of tweezers to put it in. First one bounced off somewhere, second one was too long, third time I got it right, lol.

Rbreb13 · 11-14-2004, 04:51 PM

I used a pair of thin nosed forceps that I have. (Old roach clip of yesteryear was its previous function)

Rising Dragon · 11-14-2004, 06:03 PM

So locked chips shouldn't be used ?

Addict · 11-14-2004, 06:05 PM

Quote:

Originally Posted by Rising Dragon

So locked chips shouldn't be used ?

No...

Quote:

Originally Posted by jenious

(NOTE: This will not work to unlock higher mults on already locked AMD chips...I tried...only work no already unlocked procs.

jenious · 11-14-2004, 06:25 PM

You can do it but it won't make any difference. There are different pin mods for changing the multipliers though on locked chips though.

Addict · 11-14-2004, 06:59 PM

yup, thats just for unlocking higher ones, though i think the green model athlon xp's have a higher reachable multi, i read a review on a mobile 2500, he said he could get a higher multi on either the brown or green... cant remember

11-14-2004, 04:21 PM	#1
jenious Paid Loafer Join Date: Mar 2000 Location: McAdam, New Brunwsick, Canada Posts: 9,244	Unlocking Higher Multiplers for Barton Mobiles on older Chipset Boards I had to deal with this today so I thought I'd post the solution for those of you who might run into the same problem. I had an old Asus A7V400MX KT400 chipset motherboard and it wouldn't allow for any mults above 12.5x and does not allow for any multiplier manipulation (either through a jumber or in the BIOS) so the board (and many other older chipset boards) will only pick up Mobiles at sub 1Ghz Levels since the higher mults are shared with lower ones meaning that a Mobile 2500+ gets auto detected at 5 x 133. Basically in order to unlock the higher multipliers you have to short out the connection between the two pins shown in the attached diagram (View is top down looking at the empty Socket) All I did was take a single copper strand out of a piece of speaker wire and form it into a U shape before dropping it into place in the circled slots. Worked like a charm. Have it running at 14 x 166 now which is a pretty darn good upgrade from a 1.4Ghz on a KT400 mobo (NOTE: This will not work to unlock higher mults on already locked AMD chips...I tried...only work no already unlocked procs. Last edited by jenious; 11-14-2004 at 04:23 PM.

11-14-2004, 04:33 PM	#2
Rbreb13 Over Hill, pickin up Speed Join Date: May 2002 Location: Carbondale, Colorado Posts: 10,107	Good job. I had to do the same thing (wire mod) on my Dual Xeon sockets to get more voltage. I dunno know about you but my old eyes had a hell of a time with it even with a magnifying glass. But then I had to do six wires to get mine done. __________________ Some of my PC's

11-14-2004, 04:44 PM	#4
Rbreb13 Over Hill, pickin up Speed Join Date: May 2002 Location: Carbondale, Colorado Posts: 10,107	Three trys? I meant I had to do 6 wires. 3 in each socket! What a PITA Over a dozen trys __________________ Some of my PC's

11-14-2004, 04:51 PM	#6
Rbreb13 Over Hill, pickin up Speed Join Date: May 2002 Location: Carbondale, Colorado Posts: 10,107	I used a pair of thin nosed forceps that I have. (Old roach clip of yesteryear was its previous function) __________________ Some of my PC's

11-14-2004, 06:03 PM	#7
Rising Dragon Ebay Junkie Join Date: Sep 2003 Location: Missouri Posts: 220	So locked chips shouldn't be used ? __________________ ---- My Rig ---- EPoX EP-8KRAIPRO Socket A (Socket 462) VIA KT880 ATX AMD AMD 2400+ (1gb PC3200) Western Digital 120gb HD LiteOn CD NU DVD + RW GF 5500 256 Windows XP Pro

11-14-2004, 04:37 PM	#3
jenious Paid Loafer Join Date: Mar 2000 Location: McAdam, New Brunwsick, Canada Posts: 9,244	Ha Ha...yeah took me three.

11-14-2004, 04:46 PM	#5
jenious Paid Loafer Join Date: Mar 2000 Location: McAdam, New Brunwsick, Canada Posts: 9,244	Ha Ha, yeah I meant three tries, only one slot. The wire I used was crazy small and I had very little light. Used a pair of tweezers to put it in. First one bounced off somewhere, second one was too long, third time I got it right, lol.

11-14-2004, 06:25 PM	#9
jenious Paid Loafer Join Date: Mar 2000 Location: McAdam, New Brunwsick, Canada Posts: 9,244	You can do it but it won't make any difference. There are different pin mods for changing the multipliers though on locked chips though.

11-14-2004, 06:59 PM	#10
Addict Truly HARDCORE Join Date: Jul 2004 Location: Louisville, Kentucky Posts: 4,233	yup, thats just for unlocking higher ones, though i think the green model athlon xp's have a higher reachable multi, i read a review on a mobile 2500, he said he could get a higher multi on either the brown or green... cant remember __________________ Lap: 1.86 PM, 6800, 512 ddr2, 80gb hdd, 17"wide, a/b/g integ, bluetooth integ, cd w/r dvd Aquamark 61157 http://arc.aquamark3.com/arc/arc_view.php?run=489652493 3DMark05 4444 http://service.futuremark.com/compare?3dm05=894820 Desk: Athlon Xp, 512 ddr400 pqi turbo, 80gb hdd, radeon 7000,