BEFORE benching Quent's E6600 > 4.9GHz

[before]

SYSTEM
CPU: Quent's E6600 6B2
MoBo: Asus P5B-DLX WiFi - bios 804
RAM: Super Talent T800UX1GC4
OS: Windows 2003 Server
HDD: Western Digital IDE 80Gb
Cooling: Cascade (R290+R170 refrigerants, 8082+7950Btu/h rotaries compressors, @ about -100°C)

Vcore=1.74V
Vmch=1.73V
Vddr=2.81V

Max suicide CPU-Z... The motherboard couldn't scale over this point.

http://beforeoverclock.com/images/E6600CPUZ@4948.png
http://valid.x86-secret.com/show_oc?id=137958

Max Spi 1M, 2M and 4M...

http://beforeoverclock.com/images/E6600SPI1M@10,297.png

http://beforeoverclock.com/images/E6600SPI2M@25,953.png

Always nice to see a Spi 4M < 1min :D

http://beforeoverclock.com/images/E6600SPI4M@59,922.png

Max PiFast...

http://beforeoverclock.com/images/E6600SPIFAST@19,59.png

Thx to my bro Quent for lending me this CPU.

I'm waiting for a Biostar TForce P965 Deluxe which may arrived very soon. Thx again Quent... :santa:

[hUMANbEATbOX]

holy crap, nice work!

strange the p5b won't let you get over 5ghz. maybe some DI on the nb would do the trick?

[einstein2]

damn!, that is some impressive o/c, i,ll stick to 2.5ghz lol, I wouldnt be able to reach 5ghz on air lol, are you using some sort of liquid nitrogen coolant?

[darkcow]

thats one amazing over clock. i just wish i had the money for a phase change.

[Gautam]

Looking good my friend, now when are you gonna stick an X6800 under that bad boy? :D

[Phrenetical]

common you can make 5G, :D

[kbanny]

I'd love to see that cpu on a 680i board, since it would be just for raw ghz~

[greenmaji]

thats one amazing over clock. i just wish i had the money for a phase change.

IIRC thats a DIY cascade ;)

NICE clock :thup:

[Ad Rock]

Very nice results.

2.81 Vddr :eek:

[before]

Thx guys! ;)

@hUMANbEATbOX: I don't know if an extra cooling solution on the NB would help. Actually, the PCB around the socket is pretty cold thx to the cascade. After turning the cascade off, I can see condensation over the NB heatsink & heatpipes. :)

@einstein2: I'm using a cascade to cool down the CPU (a phase change system with 2 different refrigerants).

@Gautam: As soon as possible bro! :D I'm gonna try for FSB a Biostar P965 TForce Deluxe later this week; then I'll have to test 5 6400 + 5 6600 for an online store, and may be a 6700 or a 6800 within 2 or 3 weeks (the boss of this store is offering me to give me 50L of LN2 but unfortunately I don't have a CPU container). BTW my friend Quent will send me a 6800 in about a month.. So as you already have understood, my near future is full of fun! :D

@Phrenetical: I can't do it with this P5B-DLX... I hope to be able to with a Biostar.

@Ad Rock: 2.81V isn't too much... :D Actually, it was useless there. I've increased the Vddr to play with the RAM frequency:

http://img297.imageshack.us/img297/8727/t800ux1gc4635mhzkg7.png
http://valid.x86-secret.com/show_oc?id=137083

[[SC]Ceasar]

Nice clocks!!

[hUMANbEATbOX]

WOW at those mem clocks/timings. :clap:

[FeuerFrei]

Bravo, excellent travail!

[Phrenetical]

i have faith in you :D

[before]

Thank you so much!

Merci FeuerFrei!

I hardly need that Biostar of Quent's to arrive very soon now. The P5B has died yesterday.

http://img329.imageshack.us/img329/4757/p5bregulue7.png

[hUMANbEATbOX]

how did that happen??! :cry:

sorry for your loss.

[greenmaji]

Im more intrested in at what point it poped that fet.

Might be able to get the fet replaced if you can find a sutable one and an EET.

[before]

In fact, I was faulty... I've made a short circuit while measuring the Vcore and the system didn't like that. :(

BTW the Biostar might arrive today...

[greenmaji]

TV repair shop :thup:

TForce soon :thup: :thup:

[before]

I've emailed the shop about RMA process and now waiting for an answer. BTW I'll travel to the city where the shop is located this week end... my parents are living there. :)

The Biostar was supposed to arrive today but as usual the French postal service is late -always on strike-... :clap: That really suxx! :mad:

[before]

I've recieved that Biostar of Quents today. I'll not have the time to bench during the week end; so I've quickly turned it on to see how could it works.

A quick Vdimm mod...

http://img167.imageshack.us/img167/7327/2copieww3.png

And a glance at the bios... check the temp; it was fluctuating within -119°C to -122°C :X (note the hardcore stuff on the background)

http://img167.imageshack.us/img167/6171/3copiebb0.png

[toddm27]

shoot me a pm if you can't get it rma'd, I've got a dead p5b laying around, I could send you that mosfet, ;)

[before]

That's a very very kind proposal buddy! Thank you so much!

The shop told me to contact the manufacturer and the manufacturer to contact the shop for further testing :D I can understand the reseller point of view but not the one of Asus... and my last email to Asus RMA guy was a little bit rude but polite of course. :) I'll let you know.

I've tested the Biostar board under cascade and it required me to flash the bios for the one modded by The Stilt. The motherboard ran nicely and scaled up to 540FSB using 9*.

BTW I would like to try to achieve higher FSB numbers and for that reason I've modded the board.

NB Heatsink lapping...

http://beforeoverclock.com/images/5%20copie.png

... and Vcore mod :D

http://img295.imageshack.us/img295/1029/4copiewl6.png

http://img295.imageshack.us/img295/7735/6copieet8.png

I hope to have sweet results to share for tomorrow... :rolleyes:

[Clockwork_Apple]

:drool: I'm just looking at the mem timings... :eek:

[toddm27]

could you give me some details on those volt mods for me or point me to where there's some listed for the biostar, just got a deal on one, so I'm gonna put it through it's paces :D

edit: btw those temps are a little warm,:eek: only -120:drool:

[before]

Check this thread (http://www.xtremesystems.org/forums/showthread.php?t=110106) buddy ;) Vdimm mod is in pages 2 & 7, and Vcore mod in page 9. You can also look at my pictures. If you still have questions, please feel free to ask me... :)

Here's the highest benchable FSB I can reach with this Biostar... I've tried 3 Bioses from the beginning: the crappy original one (unbootable with strap 1333), The Stilt's modded one and the 0914 which is in fact, not officially supposed to be used with TForce P965 Deluxe but with TForce 965PT... obviously the Deluxe and PT models are exactly the same. The Deluxe has been renamed PT for some reasons.


Voltages as monitored by the bios:
Vcore = 1.80V (useless :D)
Vmch = 1.82V (1.7V gave same FSB wall)
Vdimm = 2.83V
Vfsb = 1.50V

http://img137.imageshack.us/img137/5089/e6600spi1m10390xk1.png