View Full Version : Pin Mod 533mhz to 800mhz?
Can a 533mhz 2.4a be pin modded to run 800mhz. I have an asus T2-p that wont let me choose 800mhz only 533mhz.
I would love to have it boot as an 800mhz chip.
n00b 0f l337
05-19-2005, 11:04 AM
I don't think so, though with good cooling you may be able to OC to that. I've never heard in that sorta pin mod.
Lithan
05-19-2005, 07:29 PM
Get a 2.26b instead. One less X so dont much more likely to make it, and it runs cooler/performs better in most tasks at the same clock.
totensiebush
05-19-2005, 08:18 PM
I don't think so, though with good cooling you may be able to OC to that. I've never heard in that sorta pin mod.
Someone recently posted about doing something similar in a Dell, IE setting their LGA775 setup to run at FSB266/1066 instead of 200/800, so I am sure there is a way.
socrilles
05-20-2005, 12:52 PM
The pin mod is really easy on the socket 478 processor, you just have to ground bsel1, which can be done with a U shaped wire in the socket like the AMD processors. Here is a link to the intel whitesheetsintel whitesheets (http://www.intel.com/design/Pentium4/datashts/300561.htm) in it you have to find where the bsel1 is and then make a connection between that hole and one of the vss's that is next to it with the U shaped wire in the socket (I usually use the wires that come with a cdrom drive to connect to sound/card mobo strip them back and you will find really thin wires.)
GL, and I take no responsibilities if something goes wrong (the link I gave is for the 90 nM processors but I'm pretty sure all socket 478 will have the same pinout).
This is a 533mhz 90nm chip. does that matter.
musk
socrilles
05-22-2005, 08:06 AM
no the only thing that makes it a 533 mhz processor and not a 800 mhz fsb processor is that bsel1 isn't grounded, go to notebookforum.com and in the dell 9300 subgroup look for the picture guide this is a very similiar mod
n00b 0f l337
05-22-2005, 08:10 AM
Wait....
If you have a 3.06, lets say. With 533 mhz fsb, (133 fsb) then the multi is 23... If you swithced it to run at 800 mhz fsb, (200 fsb) then it would be a 4.6ghz chip. How does stability manage to stay in effect? I think that would need a cascade and a lot of voltage to do anything.
socrilles
05-22-2005, 09:21 AM
yes the only viable pin mods are:
2.26, 2.4 and 2.53 to 3.8 4 and 4.2 respectively (533 to 800)
and p4 630 3 ghz, 640 3.2 ghz to 4 ghz EE or 4.26 ghz EE respectively (800 to 1066) you can also pin mod for higher voltage
Lithan
05-22-2005, 10:26 AM
Wait....
If you have a 3.06, lets say. With 533 mhz fsb, (133 fsb) then the multi is 23... If you swithced it to run at 800 mhz fsb, (200 fsb) then it would be a 4.6ghz chip. How does stability manage to stay in effect? I think that would need a cascade and a lot of voltage to do anything.
It doesn't. That's why there aren't any 800FSB chips with a 23 multi.
i found nemo
05-22-2005, 01:08 PM
i guess you lower the multiplier before you do the wire mod...that way it will turn on....but you can't do that in dells
Lithan
05-22-2005, 01:16 PM
Intel has unlocked lowers now?
i found nemo
05-22-2005, 01:18 PM
if it's a mobile, maybe
n00b 0f l337
05-22-2005, 01:36 PM
But are those 630 pin mods any where near stable? If so why doesnt intel sell them?
Lithan
05-22-2005, 01:40 PM
They can be stable. It's just like any other kind of overclocking except it works on boards that don't support overclocking. Why doesn't intel only sell 3.73EE's? Same answer.
n00b 0f l337
05-22-2005, 01:49 PM
Ah, so just for boards that dont support. I geuss thats cool. I wonder if you could do the mod with a thin layer of copper filament on the bottom of cpu.
yes the only viable pin mods are:
2.26, 2.4 and 2.53 to 3.8 4 and 4.2 respectively (533 to 800)
and p4 630 3 ghz, 640 3.2 ghz to 4 ghz EE or 4.26 ghz EE respectively (800 to 1066) you can also pin mod for higher voltage
I think the 2.4 would run 3.6 right? 18x133=2400 ----- 18x200=3600
I will give it a go.
i found nemo
05-23-2005, 06:49 AM
ok let us know ;)
socrilles
05-23-2005, 10:57 AM
yah I'm interested to see if it works, also there is a way to adjust the voltage similarly if needed.
totensiebush
05-23-2005, 02:59 PM
yes the only viable pin mods are:
2.26, 2.4 and 2.53 to 3.8 4 and 4.2 respectively (533 to 800)
and p4 630 3 ghz, 640 3.2 ghz to 4 ghz EE or 4.26 ghz EE respectively (800 to 1066) you can also pin mod for higher voltage
2.26 = 3.4
2.4 = 3.6
2.53 = 3.8
death metal
05-23-2005, 03:37 PM
musk, i'm waiting for this =)......
Well this is going to have to wait untill my next build. I have to give this machine to a client today. If anyone cares, the 2.4 E0 steppings can do 3.6 easily so this is a great chip/project for a cheap shuttle unit. Too bad there is no HT cause its pretty good for multi-tasking as an everyday station.
I am not going to let this die. Will probably build another in a week or so.
m