CoolioCat
03-30-2006, 01:26 AM
Time for some serious pleading :worship: to the more talented members of XS here...
I've got some Pentium D 805's i'd like to pin-mod. :cool:
Since s775 makes that hard, i'd be happy to solder (or conductive paint) mod at least one of them to a fixed FSB speed. Instead of 533FSB as they are by default, let's say i wanted to put it to 800FSB.
That means, on 20x multi, it'll boot at 4GHZ when set at 800FSB (if i'm getting all this correct). It's a bit much for the cpu perhaps, so i could always set the voltage to be perhaps 1.45 or 1.50 via a solder mod too...
I recall a thread by Socrilles here Solder Modding... (http://www.xtremesystems.org/forums/showthread.php?t=69913) that showed a cpu raised from 800 to 1066, but that was by making BSEL0, BSEL1 and BSEL2 all low resistance.
I hope he doesn't mind, but i'll just rip three lines from him here:
FSB is determined by the settings of BSEL0, BSEL1 and BSEL2
(L = low resistance/grounded, H = high resistance)
for 533 fsb they are H L L
for 800 fsb they are L H L respectively
for 1066 fsb they are L L L so you have to ground BSEL1, therefore you can make a connection between BSEL1 and BSEL2 to ground BSEL1.
Now 1066 is too much to solder mod the 805 to (unless you have serious cooling), so i'd be aiming for 800 fsb.
That means:
1) set BSEL0 to L instead of H
2) Set BSEL1 to H instead of L
Is it possible for anyone to show me on a 775 socket diagram which pins are best to solder to which other ones to achieve part 2?
1) can be achieved by connecting BSEL0 to BSEL2 (nice and easy since they are side by side)
but i'm not sure about making BSEL1 be H
I'd need to increase the default voltage by soldering too I imagine, perhaps to 1.45V (by connecting VID4 and VID5 together?)
I'm happy to do the work, but i'm not yet confident enough in choosing the right pins to actually do it... hence the request for some advice and help... :D
(p.s. the motherboards i'd like to put these into feature NO OC abilities AT ALL, hence the request! However, i can test the cpus in Asus P5WD2 or something first to ensure they can reach the 800FSB)
The specsheet i'm going by can be found right here. (http://download.intel.com/design/Pentiumd/datashts/30750603.pdf) Sections 4-1 and 4-2.
I don't have a paint program installed on this machine, otherwise i'd have grabbed some pics of the pin layout and asked someone to simply draw some lines on the pic as to which pins to connect etc.
... Is any of the above even really possible?
Is this all complete :bs: ?
Perhaps :am:
I've got some Pentium D 805's i'd like to pin-mod. :cool:
Since s775 makes that hard, i'd be happy to solder (or conductive paint) mod at least one of them to a fixed FSB speed. Instead of 533FSB as they are by default, let's say i wanted to put it to 800FSB.
That means, on 20x multi, it'll boot at 4GHZ when set at 800FSB (if i'm getting all this correct). It's a bit much for the cpu perhaps, so i could always set the voltage to be perhaps 1.45 or 1.50 via a solder mod too...
I recall a thread by Socrilles here Solder Modding... (http://www.xtremesystems.org/forums/showthread.php?t=69913) that showed a cpu raised from 800 to 1066, but that was by making BSEL0, BSEL1 and BSEL2 all low resistance.
I hope he doesn't mind, but i'll just rip three lines from him here:
FSB is determined by the settings of BSEL0, BSEL1 and BSEL2
(L = low resistance/grounded, H = high resistance)
for 533 fsb they are H L L
for 800 fsb they are L H L respectively
for 1066 fsb they are L L L so you have to ground BSEL1, therefore you can make a connection between BSEL1 and BSEL2 to ground BSEL1.
Now 1066 is too much to solder mod the 805 to (unless you have serious cooling), so i'd be aiming for 800 fsb.
That means:
1) set BSEL0 to L instead of H
2) Set BSEL1 to H instead of L
Is it possible for anyone to show me on a 775 socket diagram which pins are best to solder to which other ones to achieve part 2?
1) can be achieved by connecting BSEL0 to BSEL2 (nice and easy since they are side by side)
but i'm not sure about making BSEL1 be H
I'd need to increase the default voltage by soldering too I imagine, perhaps to 1.45V (by connecting VID4 and VID5 together?)
I'm happy to do the work, but i'm not yet confident enough in choosing the right pins to actually do it... hence the request for some advice and help... :D
(p.s. the motherboards i'd like to put these into feature NO OC abilities AT ALL, hence the request! However, i can test the cpus in Asus P5WD2 or something first to ensure they can reach the 800FSB)
The specsheet i'm going by can be found right here. (http://download.intel.com/design/Pentiumd/datashts/30750603.pdf) Sections 4-1 and 4-2.
I don't have a paint program installed on this machine, otherwise i'd have grabbed some pics of the pin layout and asked someone to simply draw some lines on the pic as to which pins to connect etc.
... Is any of the above even really possible?
Is this all complete :bs: ?
Perhaps :am: