AMD Barton 2800 and AK37 mobo problem

joe m · 31st Dec 2005, 10:22 PM

Decided to take the 1 ghz amd chip out my AK37GT mobo and switch it out with a Barton 2800.

Was successful getting the chip to work at 100 X 12.5. Also, successful at getting chipto work at 133 X 12.5. All other bios setups left at default (which for some reason the defaulut voltage for the chip was 1.75 - I expected it to be 1.5 v).

However, when I went to a 166 X 12.5 to hopefully get a 2 ghz out of the chip... it shut down. I can not reset the bios because it will not boot. Pulling the CMOS BIOS jumper pin didn't work either. The fans barely start for a few seconds... then - nothing.

Any Ideas... or, did I probably damage the CPU?

BTW, spec. for the mobo says it will go to 200/266 (unofficially 333 as well). In the bios setup, it only allows for a max FBS of 200. The chip is brand new ...bot from newegg.

Joe

kayFX · 31st Dec 2005, 10:35 PM

try swapping back your old processor..
according to this link:
http://www.shuttle.com/share/product...37GTR%20DM.pdf
it doesn't say it support barton core..

joe m · 31st Dec 2005, 11:04 PM

Am I missing something?

The AMD Athlon XP Barton defaults to as low as 100 FSB (running at 12.5X100 - 1.25 ghz). The mobo specs say it will go to at least 266 (2X133?). Shuttle's Bios update indicates this update is for the Barton 2800. However, the AMD sight doesn't recommend this chip with the AK37 mobo, but the Barton can default to run with the AK37 mobo.

Also, Shuttle provides a bios update for the AK37 to accomodate the Barton 2800. Why have a bios update for the Barton 2800 unless the mobo would default to work with the Barton Chip? Besides, it worked at the lower FSB's of 100 and 133 (with 12.5 multi). My problem started when I went to 166.

Joe

Chai · 1st Jan 2006, 01:21 AM

Of course you are going to face problems running at 166MHz. It's not as simple as running at 166MHz. Do you have 166MHz RAM? 166MHz also means that the PCI bus is way off spec, your hard disk, graphics card, sound card will not be able to take it.

joe m · 1st Jan 2006, 01:40 AM

Yep...166 mhz DDRAM PC2700

I understand that a 12.5 x 166 may not work...

But what I don't understand is why would the computer not be able to boot even after the bios was cleared. How would changing only the FBS (only) cause the PC to not powerup?

Since my last post, I reset the CMOS BIOS (unplugged power and removed battery)... then replaced the old AMD chip back into the system... still no power. Only a short spin of the fans for a few seconds... then nothing.

Can changing the CPU chip and it's FBS cause the power supply to go out... or, it is something else that can cause this lack of booting abillity I can look for.

DDR RAM PC2700 166mhz 2.5-3-3-7

Joe

EDIT - Also, I changed out the 400 watt power supply with an older 350 watt power supply (with original chip)... the fans wouldn't even power up for a few seconds as with the 400 watt power supply.... hmmm... could the change actually cause a need for more power? That just doesn't seem right. I'm lost on this problem.

joe m · 1st Jan 2006, 10:30 AM

Problem solved...

Thxs to all that posted...

The problem was actually very simple to solve... it seems the power button on the front that was the problem... while I was using the power switch on the power supply to turn the PC on... for some reason, it was the cold boot button in the front that had somehow inhibited the boot. And I simply had to hold it down for longer than usual (about 15 seconds) then turn on from power supply switch... THEN, push the cold boot button on the front. Started right up. It really had to be done in that particular order AFTER I had reset the bios w/battery removed.

Moral to this story... post and yea shall recieve. Second moral, computers are God's greatest gift AND curse.

On a more practically level, the moral is that the AK37GT mobo advertises a 266 FSB max... but it seems to have a funky default cpu voltage of 1.75 per the bios... but, actually runs at 1.7 core voltage on a 1Ghz Athlon Tbird... and, when you use a Barton chip, it runs at 1.65 core voltage. Just a WAG, but I think it's this voltage quirk that might make it not possible to run this particular mobo shut down when you try an push it to a 166 mhz FSB. Until I figure this out, I'll just run it at 133 and if I get couragious to mess with the multiplier to get the chip to run at or close to 2 gig. Anyone have any settings combinations that work with the Barton 2800 and AK37GT combination?

Sidenote: The temp on the AK37GT with the Athlon Tbird actually runs at a steady 51c temp range... while the Barton runs at a lower 49-50c temp range. AND, that is in an idle-like state... no heavy processing.

Lesson learned... I am very new to this overclocking thing and I'm not sure it's as much fun as some think.

Joe

Chai · 1st Jan 2006, 03:31 PM

Even though we didn't managed to solve your problem, glad that you solved it yourself!

Overclocking can be a little more complicated with older motherboards, especially when they don't have PCI/AGP bus speed lock. Bumping up the FSB meant that almost everything else are overclocked together! A lot of devices do not run with off-the-spec speed, especially sound card, and PCI IDE controller card.

Overclocking is a lot easier today, because most chipsets have PCI/AGP/PCI-E bus speed lock.

If you want to overclock, you may want to try 140MHz or 145MHz, your devices should be able to take it. But be warned, your HDD might get corrupted.

joe m · 2nd Jan 2006, 02:01 PM

Thanks for that information...

I think I'll just stay at the 133 fsb with a 12.5 multiplier until it has stabilty issues...

Question... would I potentially suffer the same shut down fate of moving from 133 to 166 by moving the multiplier up while leaving the fsb at 133?

Joe

Chai · 2nd Jan 2006, 07:16 PM

Quote:

Originally Posted by joe m

Thanks for that information...

I think I'll just stay at the 133 fsb with a 12.5 multiplier until it has stabilty issues...

Question... would I potentially suffer the same shut down fate of moving from 133 to 166 by moving the multiplier up while leaving the fsb at 133?

Joe

I dont' think you can increase the multiplier beyond 12.5x, unless your motherboard supports.

joe m · 2nd Jan 2006, 10:37 PM

The AK37GT board does allow for mutiplier increases.

Joe

31st Dec 2005, 10:22 PM	#1 (permalink)
joe m Newbie Join Date: 31 Dec 2005 Posts: 7 Reputation: 0 Rep Power: 0	AMD Barton 2800 and AK37 mobo problem Decided to take the 1 ghz amd chip out my AK37GT mobo and switch it out with a Barton 2800. Was successful getting the chip to work at 100 X 12.5. Also, successful at getting chipto work at 133 X 12.5. All other bios setups left at default (which for some reason the defaulut voltage for the chip was 1.75 - I expected it to be 1.5 v). However, when I went to a 166 X 12.5 to hopefully get a 2 ghz out of the chip... it shut down. I can not reset the bios because it will not boot. Pulling the CMOS BIOS jumper pin didn't work either. The fans barely start for a few seconds... then - nothing. Any Ideas... or, did I probably damage the CPU? BTW, spec. for the mobo says it will go to 200/266 (unofficially 333 as well). In the bios setup, it only allows for a max FBS of 200. The chip is brand new ...bot from newegg. Joe

31st Dec 2005, 10:35 PM	#2 (permalink)
kayFX Active Join Date: 4 Sep 2004 Location: in my room Posts: 633 Reputation: 253 Rep Power: 8	try swapping back your old processor.. according to this link: http://www.shuttle.com/share/product...37GTR%20DM.pdf it doesn't say it support barton core.. __________________ my gaming gear: steelseries Siberia \| Logitech MX518 \| Everglide Titan DKT edition \| Microsoft SideWinder X6 \| steelseries Ikari Optical

1st Jan 2006, 01:21 AM	#4 (permalink)
Chai Administrator Join Date: 6 Oct 2002 Location: Maranello Posts: 27,884 Reputation: 4630 Rep Power: 81	Of course you are going to face problems running at 166MHz. It's not as simple as running at 166MHz. Do you have 166MHz RAM? 166MHz also means that the PCI bus is way off spec, your hard disk, graphics card, sound card will not be able to take it. __________________ Chai (Contributor & Forum Admin) http://www.techarp.com/

1st Jan 2006, 01:40 AM	#5 (permalink)
joe m Newbie Join Date: 31 Dec 2005 Posts: 7 Reputation: 0 Rep Power: 0	Yep...166 mhz DDRAM PC2700 I understand that a 12.5 x 166 may not work... But what I don't understand is why would the computer not be able to boot even after the bios was cleared. How would changing only the FBS (only) cause the PC to not powerup? Since my last post, I reset the CMOS BIOS (unplugged power and removed battery)... then replaced the old AMD chip back into the system... still no power. Only a short spin of the fans for a few seconds... then nothing. Can changing the CPU chip and it's FBS cause the power supply to go out... or, it is something else that can cause this lack of booting abillity I can look for. DDR RAM PC2700 166mhz 2.5-3-3-7 Joe EDIT - Also, I changed out the 400 watt power supply with an older 350 watt power supply (with original chip)... the fans wouldn't even power up for a few seconds as with the 400 watt power supply.... hmmm... could the change actually cause a need for more power? That just doesn't seem right. I'm lost on this problem. Last edited by joe m : 1st Jan 2006 at 03:12 AM.

1st Jan 2006, 03:31 PM	#7 (permalink)
Chai Administrator Join Date: 6 Oct 2002 Location: Maranello Posts: 27,884 Reputation: 4630 Rep Power: 81	Even though we didn't managed to solve your problem, glad that you solved it yourself! Overclocking can be a little more complicated with older motherboards, especially when they don't have PCI/AGP bus speed lock. Bumping up the FSB meant that almost everything else are overclocked together! A lot of devices do not run with off-the-spec speed, especially sound card, and PCI IDE controller card. Overclocking is a lot easier today, because most chipsets have PCI/AGP/PCI-E bus speed lock. If you want to overclock, you may want to try 140MHz or 145MHz, your devices should be able to take it. But be warned, your HDD might get corrupted. __________________ Chai (Contributor & Forum Admin) http://www.techarp.com/

31st Dec 2005, 11:04 PM	#3 (permalink)
joe m Newbie Join Date: 31 Dec 2005 Posts: 7 Reputation: 0 Rep Power: 0	Am I missing something? The AMD Athlon XP Barton defaults to as low as 100 FSB (running at 12.5X100 - 1.25 ghz). The mobo specs say it will go to at least 266 (2X133?). Shuttle's Bios update indicates this update is for the Barton 2800. However, the AMD sight doesn't recommend this chip with the AK37 mobo, but the Barton can default to run with the AK37 mobo. Also, Shuttle provides a bios update for the AK37 to accomodate the Barton 2800. Why have a bios update for the Barton 2800 unless the mobo would default to work with the Barton Chip? Besides, it worked at the lower FSB's of 100 and 133 (with 12.5 multi). My problem started when I went to 166. Joe

1st Jan 2006, 10:30 AM	#6 (permalink)
joe m Newbie Join Date: 31 Dec 2005 Posts: 7 Reputation: 0 Rep Power: 0	Problem solved... Thxs to all that posted... The problem was actually very simple to solve... it seems the power button on the front that was the problem... while I was using the power switch on the power supply to turn the PC on... for some reason, it was the cold boot button in the front that had somehow inhibited the boot. And I simply had to hold it down for longer than usual (about 15 seconds) then turn on from power supply switch... THEN, push the cold boot button on the front. Started right up. It really had to be done in that particular order AFTER I had reset the bios w/battery removed. Moral to this story... post and yea shall recieve. Second moral, computers are God's greatest gift AND curse. On a more practically level, the moral is that the AK37GT mobo advertises a 266 FSB max... but it seems to have a funky default cpu voltage of 1.75 per the bios... but, actually runs at 1.7 core voltage on a 1Ghz Athlon Tbird... and, when you use a Barton chip, it runs at 1.65 core voltage. Just a WAG, but I think it's this voltage quirk that might make it not possible to run this particular mobo shut down when you try an push it to a 166 mhz FSB. Until I figure this out, I'll just run it at 133 and if I get couragious to mess with the multiplier to get the chip to run at or close to 2 gig. Anyone have any settings combinations that work with the Barton 2800 and AK37GT combination? Sidenote: The temp on the AK37GT with the Athlon Tbird actually runs at a steady 51c temp range... while the Barton runs at a lower 49-50c temp range. AND, that is in an idle-like state... no heavy processing. Lesson learned... I am very new to this overclocking thing and I'm not sure it's as much fun as some think. Joe

2nd Jan 2006, 02:01 PM	#8 (permalink)
joe m Newbie Join Date: 31 Dec 2005 Posts: 7 Reputation: 0 Rep Power: 0	Thanks for that information... I think I'll just stay at the 133 fsb with a 12.5 multiplier until it has stabilty issues... Question... would I potentially suffer the same shut down fate of moving from 133 to 166 by moving the multiplier up while leaving the fsb at 133? Joe

2nd Jan 2006, 10:37 PM	#10 (permalink)
joe m Newbie Join Date: 31 Dec 2005 Posts: 7 Reputation: 0 Rep Power: 0	The AK37GT board does allow for mutiplier increases. Joe