KT7-Raid : Will it run an XP1800 ?

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The subject says it all really, I understand that the XP1800 (Palemino 'Green') CPU is 133mhz/266mhz bus can it be dropped to 200mhz?

Sounds stupid I know, but is it possible?
 
On Fri, 04 Jul 2003 16:48:56 +0100, Joe Bloggs wrote:

The subject says it all really, I understand that the XP1800 (Palemino 'Green') CPU is 133mhz/266mhz bus can it be dropped to 200mhz?
Yes. See sig. Go to link.
 
OK, have it running at 1475mhz, not full wack, but it works. The BIOS updated to A9 without issue, but reports the processor as 'unknown' type.

"Wes Newell" wrote:

On Fri, 04 Jul 2003 16:48:56 +0100, Joe Bloggs wrote:

The subject says it all really, I understand that the XP1800 (Palemino
'Green') CPU is 133mhz/266mhz bus can it be dropped to 200mhz?

Yes. See sig. Go to link.

--
Abit KT7-Raid (KT133) Tbred B core CPU @2400MHz (24x100FSB) http://mysite.verizon.net/res0exft/cpu.html
 
On Fri, 04 Jul 2003 23:00:47 +0100, Joe Bloggs wrote:

OK, have it running at 1475mhz, not full wack, but it works. The BIOS updated to A9 without issue, but reports the processor as 'unknown' type.
Yep. It is unknown by the bios. No prblem. Curious why/how 1475 though. Sound like you didn't set the multiplier very high.
 
On Sat, 05 Jul 2003 23:41:53 +0100, Joe Bloggs wrote:

Further help required, unable to get aobe 1488mhz.

From the BIOS,

CPU Operating speed = User defined
Multipler Factor = 12xabove
CPU FSB/PCI = 100/33mhz
CPU FSB plus (MHz) = 18

This gives me 1475mhz, but if I try to push 20 or above then system won't boot.
OK, this either isn't a Palomino, or it's been unlocked. Otherwise it wouldn't use the 12.5 multiplier used with the 12xabove setting. What's the CPUID? I need to know which cpu you have. PN and stepping from label would be just as good as cpuid. BTW, that's the highest FSB I've seen for the KT133 chipset. I can't get over plus 16.

If this is a Palomino or Tbred A, then you won't be able to use the multiplier settings in the bios to go higher. If it's a Tbred B core, then you are in for a joy ride.
 
This CPU is green in colour. Markings from CPU Chip

AXDA1800DUT3C 9268716250026
JIUCB 0251RPMW (C) 19999

"Wes Newell" wrote:

On Sat, 05 Jul 2003 23:41:53 +0100, Joe Bloggs wrote:

Further help required, unable to get aobe 1488mhz.

From the BIOS,

CPU Operating speed = User defined
Multipler Factor = 12xabove
CPU FSB/PCI = 100/33mhz
CPU FSB plus (MHz) = 18

This gives me 1475mhz, but if I try to push 20 or above then system ...
 
On Sun, 06 Jul 2003 00:42:00 +0100, Joe Bloggs wrote:

This CPU is green in colour. Markings from CPU Chip

AXDA1800DUT3C 9268716250026
JIUCB 0251RPMW (C) 19999
You're in for a treat. That's a Tbred B core. Look at the L3 bridges and you will see a laser cut on the first one that opened it. Well, you need to open the 3rd and last (L3-3 and L3-5). This will set the cpu default multiplier to 13.5. After you've done that, just plug it in and reboot. Should come up at default 2000MHz (20x100). You will probably want to raise vcore to 1.65v or higher if you have a stability problem. See multiplier cross ref in link below. That's an older cpu (0251) and not the best stepping, but I don't think you'll have a problem with 2000MHz. Might want to raise vcore to 1.75v before you shut down, just in case. If you have a boot problem, remove the power cord for 15 seconds, then power on holding the Insert down til it beeps, then go into cmos and set everything and save it.
 
Sorry to keep asking, how easy is this to do?

Would a scaple break the link? Will I been needing a magfiying glass?

I has pulled the cpu out and have it on a well lit static mat, however don't see any lines on the surface to cut.

Thanks, (yet again),

Joe

"Wes Newell" wrote:

On Sun, 06 Jul 2003 00:42:00 +0100, Joe Bloggs wrote:

This CPU is green in colour. Markings from CPU Chip

AXDA1800DUT3C 9268716250026
JIUCB 0251RPMW (C) 19999

You're in for a treat. That's a Tbred B core. Look at the L3 bridges and you will see a laser cut on the first one that opened it. Well, you need to open the 3rd and last (L3-3 and L3-5). This will set the cpu default multiplier to 13.5. After you've done that, just plug it in and reboot. Should come up at default 2000MHz (20x100). You will probably want to ...
 
Would seem I have clearly done this wrong, system won't boot unless I hold down the INS key, and the it states "BAD CHECK SUM CMOS, insert boot disk" or some such message, either way clearing the BIOS using the on board jumper still results in non-booting system. If I clear the BIOS and place a 1.2Ghz Athlon in the CPU socket, system boots. Would accidently cutting a L3 bridge next to one of the ones I need to cut do this?

I assume restoring this undesired track cut will be more difficult than cutting them in the first place, I also assume that I've not totally knackered the CPU since I can get this BIOS message in the first place.

Thanks,

Joe

"Wes Newell" wrote:

On Sun, 06 Jul 2003 00:42:00 +0100, Joe Bloggs wrote:

This CPU is green in colour. Markings from CPU Chip

AXDA1800DUT3C 9268716250026
JIUCB 0251RPMW (C) 19999

You're in for a treat. That's a Tbred B core. Look at the L3 bridges and you will see a laser cut on the first one that opened it. Well, you need to open the 3rd and last (L3-3 and L3-5). This will set the cpu default multiplier to 13.5. After you've done that, just plug it in and reboot. Should come up at default 2000MHz (20x100). You will probably want to ...
 
On Sun, 06 Jul 2003 15:09:20 +0100, Joe Bloggs wrote:

Would a scaple break the link? Will I been needing a magfiying glass?
I don't know much about scaples. I used a razor blade (exacto knife).

I has pulled the cpu out and have it on a well lit static mat, however don't see any lines on the surface to cut.
The lines are just below the surface. but don't cut too deep.
 
On Sun, 06 Jul 2003 18:06:09 +0100, Joe Bloggs wrote:

Would seem I have clearly done this wrong, system won't boot unless I hold down the INS key, and the it states "BAD CHECK SUM CMOS, insert boot disk" or some such message, either way clearing the BIOS using the on board jumper still results in non-booting system. If I clear the BIOS and place a 1.2Ghz Athlon in the CPU socket, system boots. Would accidently cutting a L3 bridge next to one of the ones I need to cut do this?
Yes, possibly, depending on which ones you cut. Not all combos are valid, and some would try and use multipliers over 20x.

I assume restoring this undesired track cut will be more difficult than cutting them in the first place, I also assume that I've not totally knackered the CPU since I can get this BIOS message in the first place.
Yep, closing them is a pita, but it can be done. Do you have a vom to check which are open and which are closed? Here's some that wouldn't work.

14.5X--O--O--O--C--O Reserved (Found Remapped to 21X, L3 bridges reset to 14.5X)
15.5X--O--C--C--O--O Reserved (Found Remapped to 22X)
17.5X--O--C--O--O--O Documented Remap To 18X
18.0X--C--O--O--O--O Reserved (Found Remapped to 23X)
18.5X--O--O--O--O--O Reserved (Found Remapped to 24X)

"Wes Newell" wrote:

On Sun, 06 Jul 2003 00:42:00 +0100, Joe Bloggs wrote:

This CPU is green in colour. Markings from CPU Chip

AXDA1800DUT3C 9268716250026
JIUCB 0251RPMW (C) 19999

You're in for a treat. That's a Tbred B core. Look at the L3 bridges and
you will see a laser cut on the first one that opened it. Well, you need
to open the 3rd and last (L3-3 and L3-5). This will set the cpu default ...
 
Wes,

Well I'm in work tomorrow, will take it to the electronics test bay, they have the tools, perhaps I should have been less hasty, will report back here when I can.

Thanks for all information and advice thus far, I am sure I'll be wanting further assistance!

Re:

Joe

"Wes Newell" wrote:

On Sun, 06 Jul 2003 18:06:09 +0100, Joe Bloggs wrote:

Would seem I have clearly done this wrong, system won't boot unless I hold down the INS key, and the it states "BAD CHECK SUM CMOS, insert boot
disk"
or some such message, either way clearing the BIOS using the on board jumper still results in non-booting system. If I clear the BIOS and place a
1.2Ghz
Athlon in the CPU socket, system boots. Would accidently cutting a L3 bridge next to one of the ones I need to cut do this?

Yes, possibly, depending on which ones you cut. Not all combos are valid, and some would try and use multipliers over 20x.

I assume restoring this undesired track cut will be more difficult than
cutting them in the first place, I also assume that I've not totally
knackered the CPU since I can get this BIOS message in the first place.

Yep, closing them is a pita, but it can be done. Do you have a vom to check which are open and which are closed? Here's some that wouldn't work. ...
14.5X)
15.5X--O--C--C--O--O Reserved (Found Remapped to 22X)
17.5X--O--C--O--O--O Documented Remap To 18X
18.0X--C--O--O--O--O Reserved (Found Remapped to 23X)
18.5X--O--O--O--O--O Reserved (Found Remapped to 24X)

"Wes Newell" wrote:

On Sun, 06 Jul 2003 00:42:00 +0100, Joe Bloggs wrote:

This CPU is green in colour. Markings from CPU Chip

... and you will see a laser cut on the first one that opened it. Well, you need to open the 3rd and last (L3-3 and L3-5). This will set the cpu default multiplier to 13.5. After you've done that, just plug it in and reboot.
Should come up at default 2000MHz (20x100). You will probably want to
raise vcore to 1.65v or higher if you have a stability problem. See
multiplier cross ref in link below. That's an older cpu (0251) and not the best stepping, but I don't think you'll have a problem with 2000MHz. Might want to raise vcore to 1.75v before you shut down, just in case. If you have a boot problem, remove the power cord for 15 seconds, then power on holding the Insert down til it beeps, then go into cmos and set everything and save it.

--
Abit KT7-Raid (KT133) Tbred B core CPU @2400MHz (24x100FSB)
http://mysite.verizon.net/res0exft/cpu.html

--
Abit KT7-Raid (KT133) Tbred B core CPU @2400MHz (24x100FSB) http://mysite.verizon.net/res0exft/cpu.html
 
Wes,

L3-2 is also broken, and haven't been able to rebuild the bridge with any sucess, would seem a lost cause now, good job didn't pay for the processor i guess.

Put this one down to education, less speed and more care.

Thanks for all assistance.

Re:

Joe.

"Wes Newell" wrote:

On Sun, 06 Jul 2003 18:06:09 +0100, Joe Bloggs wrote:

Would seem I have clearly done this wrong, system won't boot unless I hold down the INS key, and the it states "BAD CHECK SUM CMOS, insert boot
disk"
or some such message, either way clearing the BIOS using the on board jumper still results in non-booting system. If I clear the BIOS and place a
1.2Ghz
Athlon in the CPU socket, system boots. Would accidently cutting a L3 bridge next to one of the ones I need to cut do this?

Yes, possibly, depending on which ones you cut. Not all combos are valid, and some would try and use multipliers over 20x.

I assume restoring this undesired track cut will be more difficult than cutting them in the first place, I also assume that I've not totally knackered the CPU since I can get this BIOS message in the first place.

Yep, closing them is a pita, but it can be done. Do you have a vom to check which are open and which are closed? Here's some that wouldn't work. ...
14.5X)
15.5X--O--C--C--O--O Reserved (Found Remapped to 22X)
17.5X--O--C--O--O--O Documented Remap To 18X
18.0X--C--O--O--O--O Reserved (Found Remapped to 23X)
18.5X--O--O--O--O--O Reserved (Found Remapped to 24X)

"Wes Newell" wrote:

On Sun, 06 Jul 2003 00:42:00 +0100, Joe Bloggs wrote:

This CPU is green in colour. Markings from CPU Chip

... and you will see a laser cut on the first one that opened it. Well, you need to open the 3rd and last (L3-3 and L3-5). This will set the cpu default multiplier to 13.5. After you've done that, just plug it in and reboot. Should come up at default 2000MHz (20x100). You will probably want to raise vcore to 1.65v or higher if you have a stability problem. See multiplier cross ref in link below. That's an older cpu (0251) and not the best stepping, but I don't think you'll have a problem with 2000MHz. Might want to raise vcore to 1.75v before you shut down, just in case. If you have a boot problem, remove the power cord for 15 seconds, then power on holding the Insert down til it beeps, then go into cmos and set everything and save it.

--
Abit KT7-Raid (KT133) Tbred B core CPU @2400MHz (24x100FSB)
http://mysite.verizon.net/res0exft/cpu.html

--
Abit KT7-Raid (KT133) Tbred B core CPU @2400MHz (24x100FSB) http://mysite.verizon.net/res0exft/cpu.html
 
L3 or whatever # Bridge Repair

Try this method if you have access to good electronics repair eqpt.:
Get a 12" length of 22 or 20 awg stranded wire like the kind that comes with your car stereo installation kit, strip the insulation back about 4" and unlay the twist in the wire so that you have all the strands separated. Using a high powered illuminated magnifier and some Wal-Mart reading glasses (magnifier lenses) and some scotch transparent tape, position and tape the wire strands one at a time across the L3 bridges you want to close. If you're capable of soldering the strands to the circular pads on either side of the bridge, fine, just be careful of the fiberglas core mounting wafer (the green pcb that holds the core... It will "measle" and de-laminate if too much heat and pressure is applied. Use plenty of pine resin flux and "fresh" 70/30 Pb/Sn solder. Preclean and clean up with Q-tips, soft toothbrushes and isopropyl alcohol. A high quality Metcal solder station is nice to have, but not necessary. Good Luck!!! Dave

Joe Bloggs wrote:
Wes,

L3-2 is also broken, and haven't been able to rebuild the bridge with any sucess, would seem a lost cause now, good job didn't pay for the processor i guess.

Put this one down to education, less speed and more care.

Thanks for all assistance.

Re:

...
 
Dave,

Tried, and failed, it's in the bin now.

Re:

Joe

"Dave" wrote:

L3 or whatever # Bridge Repair

Try this method if you have access to good electronics repair eqpt.: Get a 12" length of 22 or 20 awg stranded wire like the kind that comes with your car stereo installation kit, strip the insulation back about 4" and unlay the twist in the wire so that you have all the strands separated. Using a high powered illuminated magnifier and some Wal-Mart reading glasses (magnifier lenses) and some scotch transparent tape, position and tape the wire strands one at a time across the L3 bridges you want to close. If you're capable of soldering the strands to the circular pads on either side of the bridge, fine, just be careful of the fiberglas core mounting wafer (the green pcb that holds the core... It ... any sucess, would seem a lost cause now, good job didn't pay for the processor i guess.

Put this one down to education, less speed and more care.

Thanks for all assistance.

Re:

Joe.

... valid, and some would try and use multipliers over 20x.

I assume restoring this undesired track cut will be more difficult than cutting them in the first place, I also assume that I've not totally knackered the CPU since I can get this BIOS message in the first place.

Yep, closing them is a pita, but it can be done. Do you have a vom to check which are open and which are closed? Here's some that wouldn't
work.
14.5X--O--O--O--C--O Reserved (Found Remapped to 21X, L3 bridges reset
to
14.5X)

15.5X--O--C--C--O--O Reserved (Found Remapped to 22X)
17.5X--O--C--O--O--O Documented Remap To 18X
18.0X--C--O--O--O--O Reserved (Found Remapped to 23X)
18.5X--O--O--O--O--O Reserved (Found Remapped to 24X)

"Wes Newell" wrote:

... default multiplier to 13.5. After you've done that, just plug it in and
reboot.
Should come up at default 2000MHz (20x100). You will probably want to raise vcore to 1.65v or higher if you have a stability problem. See multiplier cross ref in link below. That's an older cpu (0251) and not

the

best stepping, but I don't think you'll have a problem with 2000MHz.

Might

want to raise vcore to 1.75v before you shut down, just in case. If you have a boot problem, remove the power cord for 15 seconds, then power

on

holding the Insert down til it beeps, then go into cmos and set

everything

and save it.

--
Abit KT7-Raid (KT133) Tbred B core CPU @2400MHz (24x100FSB) ...
 
On Mon, 07 Jul 2003 17:38:02 +0100, Joe Bloggs wrote:

Wes,

L3-2 is also broken, and haven't been able to rebuild the bridge with any sucess, would seem a lost cause now, good job didn't pay for the processor i guess.

Put this one down to education, less speed and more care.
Don't give up on it yet. Even if you can't get the bridges closed you can stil use it. There's always more than one way to skin a cat. unless you've destroyed the little bridge post, it can still be fixed. And even if you did destroy the post, you can change the multiplier other ways. To close that bridge externally, all you need to do is short it to ground. You can do this with a piece of wire in the socket. Check out these sites.

http://www.beachlink.com/candjac/TbredDecode0.htm#Table http://www.ocinside.de/go_e.html?/html/workshop/pinmod/amd_pinmod.html

You only need to ground AL27.
 
On Mon, 07 Jul 2003 19:13:24 +0100, Joe Bloggs wrote:

Dave,

Tried, and failed, it's in the bin now.
Noooooo........ Oh well, probably too late to pull it out. If you decide to have another go at this, get a 2100+ B core or 2400+. You don't have to mod them, they plug and go.
 
Wes,

It's totally knackered mate, the bridge posts are no more, we even put it under microscope in science lab, looks like a battle field with all the pot holes, done a really stupid rush job here, but as I said before didn't cost me so no loss, which is why tried the hack in the first place.

Now looking to puchase XP2100 (b), worse part is I know my mate (Mark) has XP1800 of exact same model in his KG7-Raid.

Re:

Joe

Oh, and btw, yeah I am, Joe Bloggs! a real live one, good do you get some jip at school with a name like that, Joesph Peter Bloggs out ....

"Wes Newell" wrote:

On Mon, 07 Jul 2003 17:38:02 +0100, Joe Bloggs wrote:

Wes,

L3-2 is also broken, and haven't been able to rebuild the bridge with any sucess, would seem a lost cause now, good job didn't pay for the processor i guess.

Put this one down to education, less speed and more care.

Don't give up on it yet. Even if you can't get the bridges closed you can stil use it. There's always more than one way to skin a cat. unless you've destroyed the little bridge post, it can still be fixed. And even if you did destroy the post, you can change the multiplier other ways. To close that bridge externally, all you need to do is short it to ground. You can do this with a piece of wire in the socket. Check out these sites.

http://www.beachlink.com/candjac/TbredDecode0.htm#Table ...
 
I can still recover it from trash, if you want to give it a bash, fine by me, personally I am obviously to unskilled for this job.

Post reply to this here and I'll find my mates Virgin ISP details so we can trade postal addresses.

Re:

Joe

"Wes Newell" wrote:

On Mon, 07 Jul 2003 19:13:24 +0100, Joe Bloggs wrote:

Dave,

Tried, and failed, it's in the bin now.

Noooooo........ Oh well, probably too late to pull it out. If you decide to have another go at this, get a 2100+ B core or 2400+. You don't have to mod them, they plug and go.

--
Abit KT7-Raid (KT133) Tbred B core CPU @2400MHz (24x100FSB) ...
 
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