1700+ tbred - close the last L3 bridge, control multipliers 5.5-12.5?

[MonkOnXanax]

I know that this works on the 2400+.

Does the 1700+ tbred have the same locked/unlocked bridges as the 2400+?

 

[johncar]

Originally posted by: MonkOnXanax
I know that this works on the 2400+.

Does the 1700+ tbred have the same locked/unlocked bridges as the 2400+?

5th L3 is closed on ALL Palominos and Tbreds with default Multipliers of 12.5X and lower. 1700 = 11X, its Multiplier code will have ALL 5 L3s closed.

If you're interested in "understanding" AMD's Multiplier Code....
http://www.beachlink.com/candjac/index.htm link to article...others as may interest you.
John C.

 

[MonkOnXanax]

pic of mine

i'm confused. none of my bridges are connected.

 

[johncar]

Originally posted by: MonkOnXanax
pic of mine

i'm confused. none of my bridges are connected.

All the L1s and L3s are connected "below" the surface. Look at the L5s and L12s and note the dark laser burned pits on some of those bridges...that indicates AMD "opened" those bridges. So "no pits/burn marks" = closed bridge.
John C.

 

[MonkOnXanax]

from your article.

Fill and close only the rightmost 8X L3 bridge. Or connect a single wire from Socket A pin AJ27 to a 100 ohm resistor screw grounded to external case, as in PCB Multiplier mod above. Either should be easier than filling and closing 3 L3 bridges. System should boot at 5.5X with the same 5X thru 12.5X mobo/bios control as the 3 bridge mod booting at 11X.

Update 6/30/02:- Deerhunter's Thread at xtremesystems.org reported closing only the rightmost 8X Bit Value L3 bridge with a conductive trace around its cut, no insulating fill, then booting to 5.5X with Multiplier control from 5X thru 12.5X available from bios, but 13X and higher not working.

 

[johncar]

Originally posted by: MonkOnXanax
from your article.

Fill and close only the rightmost 8X L3 bridge. Or connect a single wire from Socket A pin AJ27 to a 100 ohm resistor screw grounded to external case, as in PCB Multiplier mod above. Either should be easier than filling and closing 3 L3 bridges. System should boot at 5.5X with the same 5X thru 12.5X mobo/bios control as the 3 bridge mod booting at 11X.

Update 6/30/02:- Deerhunter's Thread at xtremesystems.org reported closing only the rightmost 8X Bit Value L3 bridge with a conductive trace around its cut, no insulating fill, then booting to 5.5X with Multiplier control from 5X thru 12.5X available from bios, but 13X and higher not working.

You are "mis-applying" those quotes. They apply to CPUs with Multipliers "13X and higher", for people who wanted to oc with Multipliers at 12.5X and lower but raising the FSB, best overall performance. The problem was that many early mobos refused to boot AMD chips with Multipliers at 13X and higher, and closing the open 5th L3 (for 13X and higher) was a "workaround", first to get systems to boot, second to enable the lower 5X thru 12.5X Multiplier range that people wanted for best performing oc. This was all explained in article you're quoting.

Since you have an 11X chip/lower than 13X, (with the 5th L3 already closed), those comments obviously do "not apply". You should boot and have bios control of the 5X thru 12.5X range. 13X and higher depends on your mobo, as noted above many could not handle 13X and up, and even some of the newer ones supposedly designed to handle 5X thru 18X are reported to be not able to do so.
John C.

 

[MonkOnXanax]

gotcha. i get it now.

thanks for your help. 🙂