Socket "P" support FSB 1066 ?

[G0ldBr1ck]

Ive modded Desktops for years but I've never got into the mobile scene so I realy dont know much about the mobile platforms.

What im wondering is if the socket P(478) on 965/ICH8 supports anything above 800mhz FSB. If so dose anyone have information on a Pin mod? Im using a Merom T7250 2.0Ghz.

[NaeKuh]

well what i do know is the montevina cpu, or next gen which is on that high fsb is a G45 chipset.

Also the cpu's are pinless.

I dont know if santa rosa can go up that high. Which is socket P meroms. Maybe an earily gen penryn like T9300 might be your best bet with that board.

[G0ldBr1ck]

Ya, I've been researching it and seems that 800 is the highest its known to support, was just hoping maybe there would have been hidden 1066 support that was built in to accomodate what at the time would have been a futer CPU or perhaps a extreme edition of sort. Now that time has past and that didnt happen but is it possable that it was still there non the less? has anyone ever tried all the pins to confirm?

[Antinomy]

This is interesting. I've been trying to figure this out. At the moment, I don't have such a platform to test.
But I can reread the docs on these boards.
Yeah, the 200FSB are called socket P. Is it compatible with the 133/166 models, socket M ?

[G0ldBr1ck]

I think the pins are rotated 90 deg. so there not compatible. but there are 133/166 model socket P CPU i think.

[Anarki]

Yeh the socket M Yonah/Memron CPU's which are socket M, are not compatible with socket P. Socket M is 100/133/166 FSB only. Socket P supports 200 FSB.

Getting both my Celeron M 420 and T7400 Memron above 15% FSB is a no go with the i945 chipset so I'm getting a i975 AOpen board as soon as money permits :D

[Antinomy]

G0ldBr1ck, any datasheets confirming this? Couldn't find datasheet for Socket P processors...
Anarki, it's a problem to find such, though it's a good board. :)

[ziddey]

I haven't gone far into research or testing myself but hopefully will soon unless I decide to return my new laptop. It came with a t2370 and I've got a t5500es to throw in. They're both socket p? I know it's x3100 so it should be santa rosa.

If we can somehow figure out a way to prevent speedstep from locking to 6x when overclocking, it'd be a tough situation. 13x200=2600 1mb l2 or 10x200=2000 2mb l2. hmm....


hmm looking at the spec sheet for meroms on 965:

BSEL[2] BSEL[1] BSEL[0] BCLK Frequency
L L L RESERVED
L L H 133 MHz
L H H RESERVED
L H L 200 MHz
H H L RESERVED
H H H RESERVED
H L H RESERVED
H L L RESERVED

where's 166 even?

[G0ldBr1ck]

isnt SpeedStep Driver controlled? Seems like the 6x multi could be hacked.

As far as the BSEL's Has anyone out there tryed any of the Reserved Listed in Ziddey's post above this one?

[ziddey]

supposedly, so hopefully someone will find a way around. apparently it's been figured in linux to allow it to not stick to 6x.


That said, locking to 6x wouldn't be a bad thing necessarily, most notably for people with high multiplier cpu's, where if in fact it's not stable at 200x max multi, it'll let you only have it run up to a certain multi..

[ziddey]

if you wanted to give this a go, try setting all bsel's to low. cross referencing the c2d conroe, it follows suit. if it works, you'll have 266fsb. if it doesn't, you'll have something else or it won't post. no reason it'd blow you up

[G0ldBr1ck]

I may try it tomarow then, I was just hoping that somone has allready tried this, that way I wouldnt waist my time if its been tried but what the hell, ive been looking for a reason to tear it apart.

[ziddey]

I'm praying for you man. I remember four years ago, I was in the market for a new laptop and posted on [H] and notebookforums about bsel modding dothans from 100fsb to 133. Everyone was a naysayer, saying it wouldn't work or you shouldn't overclock laptops, with maybe a few people observing. Bit the bullet and it worked out great. Then everyone got into it :rolleyes:

Here's praying man! You'll be a hero :p