500 MHz FSB @ i975x? Not possible? Asus P5W64 Pro Retail done it

[webwilli]

not 1M SuperPI stable... not yet...

No mods.
1,8 VMCH

[xpsentity]

Very nice.

Boot or clockgen'd up?

What memory?

Maybe a 1333 strap on this board..

[webwilli]

boot with 6 x 450

2 x 1024 MB G.Skill DDR2 F2-6400CL4D-2GBJS

[Durzel]

How are you booting at 6x450 when you don't have an X6800?

I have an E6700 ES and the multiplier ratio is greyed out in the BIOS?

[^don.k's^]

Nice, now vmod it @2,3volts, cool it with dry ice, and get to 600 FSB with 975x Nice board you got man!

[xpsentity]

How are you booting at 6x450 when you don't have an X6800?

I have an E6700 ES and the multiplier ratio is greyed out in the BIOS?

New P5W DH bios enables lower multi's. Even without that you could lower them with Crystal CPUID.

Also, this is not a P5W DH.

That is the board in your sig at least, so I assume you are referring to it.

[camouflage]

New P5W DH bios enables lower multi's. Even without that you could lower them with Crystal CPUID.

Also, this is not a P5W DH.

That is the board in your sig at least, so I assume you are referring to it.

Where to get ??? Can it be used on the P5WDG2-WS PRO also ???

[Dani]

New P5W DH bios enables lower multi's.

Yeah but EIST change the multiplier just before Windowns start, so with E6600 and BIOS multiplier 8x400 is in boot before Windows 9x400

[Durzel]

New P5W DH bios enables lower multi's. Even without that you could lower them with Crystal CPUID.

Also, this is not a P5W DH.

That is the board in your sig at least, so I assume you are referring to it.

Sorry ignore my sig, it's out of date. I'm running the P5W64-WS Pro now with 0116 BIOS (one it was shipped with) and the multiplier ratio is greyed out in the BIOS like it is on the P5W-DH (at least before the latest beta P5W-DH BIOS).

I already know how to change the multiplier with CrystalCPUID - but it seems if you can get the board (ANY of the boards) to boot with 400+ BIOS then it seems to be using a different strap (1333 instead of 1066). I desperately need to know how the OP managed to change the multiplier to *BOOT* at 6x450.....

[xpsentity]

Looks like he is using Bios 0209 in the pic.

[PcCI2iminal]

very promising

congrats

[Durzel]

Looks like he is using Bios 0209 in the pic.

Well spotted! If 0209 unlocks the multi I'm going to be very happy. I can't WAIT to get to work tomorrow that's all I can say! Almost tempted to drive the 5 miles in now to flash it lol, even though its midnight here!

[xpsentity]

@ Durzel:

Download 0209 bios here.

[Durzel]

@ Durzel:

Download 0209 bios here.

Yup I posted a link to it earlier.. thanks though Sadly for me I'm at home and my P5W64 is at work on a bench so I can test it all

[webwilli]

very promising

congrats

thanks

Well spotted! If 0209 unlocks the multi I'm going to be very happy. I can't WAIT to get to work tomorrow that's all I can say! Almost tempted to drive the 5 miles in now to flash it lol, even though its midnight here!

yes the 0209 unlocks the multi and add some new memory settings:

- Refresh Mode Select
- Refresh Cycle Time

[Ace-a-Rue]

DRATS!...wish the P5WDG WS pro had that option!

[Devious]

boot with 6 x 450

2 x 1024 MB G.Skill DDR2 F2-6400CL4D-2GBJS

How high FSB can you get with the x9 multi ?

[Volnhar]

Looking at ordering one of these very soon.

[webwilli]

How high FSB can you get with the x9 multi ?

not tested in detail.
a first little test was at 445 MHz with 1,60 VCore.

[Ibinco]

@webwilli, m8 i have the 64 pro aswell, dont have the cahnce to try out th\e new bios till tomorrow, can you check if you still have the overvoltage problem?

[Durzel]

I wonder if vCore is tied to high FSBs?

Flashed this BIOS, indeed the multiplier is available (I've got 6x - 20x on my E6700 ES), plus a few extra memory options none of which I understand lol... couldn't get it to boot at 6x450 though, just wouldn't switch on - and the next time I powered it on it moaned about "Overclocking failed".

I'd left vCore on AUTO since 6x450 is only 2.7Ghz, but I guess you need to up the vCore as soon as you start beefing the FSB up, regardless of what speed your CPU is running at?

[Durzel]

Extra memory settings in the 0209 BIOS (Chipset section) are:

tRAS
RMS
tRFC
tRD

[Durzel]

Here's what I've found so far...

I needed to up vCore to 1.4250v in BIOS (1.48v actual in PC Probe) to get PC to POST properly, regardless of multiplier. Overvolting problem is still there. It seems even though I'm underclocking my CPU at 6x405 (2430Mhz), the motherboard behaves - at least at POST - as if its still on default (for me 10x).

Once in Windows I was able to Clockgen the FSB up to 450Mhz. Tried 475Mhz but it locked up. I guess I would need more vCore.

I'm not prepared to stick 1.6v through my CPU at air cooling so I'll resume testing once I've got my Vapo. I suspect the board will hit 500FSB with ease, though if my suspicions are correct I might not be able to boot it at 500FSB because it would be trying to boot at 10x500 (5Ghz) on an E6700.

My board is a retail board bought from a shop, which is totally stock at the moment (haven't even removed the wrapping on the NB cover or changed the TIM)

I could be wrong though....

[^don.k's^]

Extra memory settings in the 0209 BIOS (Chipset section) are:

tRAS
RMS
tRFC
tRD

NIIIICEEE!!! I hope they do the same with p5w bios...

As for the strap, AFAIK, ASUS 975 boards doesnt have 1333 strap, just 1066.

[Dumo]

450 no prtoblem with this board. Nice FSB there Durzel

@Webwilli...500 is awesome, good job