C2D 6400 L629 "B" 647 3.88ghz on Air in case

[Dlt-cba]

Well, just readed a post from tony saying new "b" cpus do better, and having one around decided to try it on my p5bdl, wich was running another 6400 (l626a443) @ 3.0ghz - Vcore 1.3875 in bios for 24/7. (this cpu max 1m was @ 3,45ghz with 1,61vcore in BIOS)

After the switch to L629b647 cpu:

Cooling: Ninja Scythe - Panaflo 120 @ Slow Rpm @ 16c ambient (AC set for 16c)
Mem: Gskill Cheap DDRII800 1gbpk @ 2.15 vdimm - loose timings
Vcore @ BIOS: 1.6875 :slapass:
NB volts: 1.65
FSB termination: 1.4

http://xs209.xs.to/xs209/06472/record.JPG

L629b is (still finding the sweet spot) orthos stable @ 3.2 (probably will run it there cause of best ram performance with this sticks is limited @400mhz)

Another thing I noticed with this cpu is that coretemp temps reading @full load seem to be up to 10c less than on the A one...

Maybe with better ram or vdrop mod (don't really know wich is stopping me, asi i go from 1mpi stable to no windows over 1mhz above posted 1m run) I can get the magic 4ghz screen

[fullmetal]

nice...try water...you can prolly go stable at higher settings

[DAK1640]

Very nice CPU...Congrats...:toast:

[ghettotech]

let us know what you come up with. I have a 629b645 and looks like orthos stable at my sig settings.

[dinos22]

these B steppings are just good....hard to find a bad one :toast:

[kingdomwinds]

is newegg shipping out B stepping these days?

[menlatin]

these B steppings are just good....hard to find a bad one :toast:

no too hard. I found one. would only do 3.2ghz prime stable. L629B274 i believe. Thats with a storm and mcp 655. My L628B has done 4.23ghz on the same board.

[p0tter]

Awesome e6400's

I have a L628B191 in box waiting RD600!!! Cant wait til play with it!

[TaPaKaH]

what`s with the FSBwall on this CPU ?

[Dlt-cba]

what`s with the FSBwall on this CPU ?

Seems to be 486 with the current cooling and without modding de vdrop at least, will try harder this weekend, but don't really want nor need to push it to far, as it is in my 24/7 box.

[TaPaKaH]

did you try it with x6 multi on air ?

[Revv23]

i know my e6400 628b is good up to at least 520. :)

[dinos22]

no too hard. I found one. would only do 3.2ghz prime stable. L629B274 i believe. Thats with a storm and mcp 655. My L628B has done 4.23ghz on the same board.
oh man that's a :banana::banana::banana::banana: one for sure ahahahaha :stick: stay away from that stepping Dino :D

[Dlt-cba]

did you try it with x6 multi on air ?

Nope, will NOW try to find the mem's limit by setting it at 4:5 in order to see if I can play with lower multis to ry higher FSB. Will try to report back with some screens. ATM it ran orthos blend @ 1.385 in BIOS - 3,2ghz - Mem 400mhz 4-4-4-10 7+ hours.

[The Viper]

is newegg shipping out B stepping these days?

Newegg seems to be giving out B steppings now, I picked up one 2wks ago

[clon22]

these B steppings are just good....hard to find a bad one :toast:
Nice!...
Hmm...
Me thinking changing to a p5b-e plus..

[dnottis]

Newegg seems to be giving out B steppings now, I picked up one 2wks ago


I had 2 6400s from Newegg last week both A, are only the 6600s available in the B stepping?

[TaPaKaH]

are only the 6600s available in the B stepping?nope, I`ve seen L629B004 E6400 ...
That chip had no FSBwall, but the seller sold it not to me :( ... for his friend

[Dlt-cba]

did you try it with x6 multi on air ?


Maybe this (screen below) is the limit for cheap DDRII 800 from gskill, will prob receive some new ram to play with on friday :D

NB v.: 1.55
FSB term v.: 1.45
DDR v. : 2.15
Vcore 1.5 @ Bios


http://xs309.xs.to/xs309/06474/500fsb.JPG

[ZeroOne]

Newegg seems to be giving out B steppings now, I picked up one 2wks ago

Not to be stupid, but is there any way to tell before you buy, or is it just word of mouth? All they seem to give is a general item & part number, & no real pictures.