P5B Deluxe 0609 BIOS FIX Memory 4:5 Problem

[AndreYang]

1. Support Conroe XE CPU(ES version) can adjust ratio to 13 (original is 11)

2. Patch OCZ2G8002GK-6400 can't boot issue

3. Fix memory 4:5

4. Fix FSB 395~399 stable


http://www.iamxtreme.net/andre/P5B-ASUS-Deluxe-0609.rar

[hatakiller]

has any1 tested this yet

[bachus_anonym]

Thanks Andre

I flashed it 10 mins ago. Running SPi32M @ 400x9 4:5 as we speak. Next I will do 450x8 4:5 and post results afterwards.

[Supertim0r]

thanks a lot Andre

[aggybong]

Is this official or still a beta?

[AndreYang]

Is this official or still a beta?

It's beta.

[thelostrican]

how about temps is it better now than before?

[Raz2133]

how about temps is it better now than before?

I noticed that since BIOS 0607 (maybe 0605?), the temps reported by the Asus Utility are a lot closer to those reported by Coretemp and the Intel Thermal Analysis Tool.

[pcdoc1]

thanks alot Andre

[metro.cl]

tomorrow i'll have this mobo shipped

hope it ocs well

[shine121]

thanks, will try later

[Supertim0r]

also priming @ 400x9 DDR2 @ 1000
was impossible before

[ScottFern]

Is 4:5 a better (faster) memory divider than 1:1 ???

[Kashath]

Yeah

[bachus_anonym]

OK, so check this out...

I'm on stock heatsink at this moment and my CPU maxes out at 3.60GHz, 32M stable. So, I first run SPi32M @ 400x9=3600MHz, DDR2-1000 (667MHz ratio, 4:5) and got 13:42.797.
Above result is about right, since at 400x9=3600MHz, DDR2-1200 (800Mhz ratio, 2:3) and same conditions I get 13:15.437.

Then I dropped multi to x8 and it appeared to boot at max 440x8. As it was not very stable, I lowered FSB to 432x8=3456MHz, DDR2-1080 (667Mhz ratio, 4:5) and got 14:40.641. Whoa, that's quite drasatic 58s loss! That's at lower CPU clocks, OK, but higher memory frequency (at least, according to CPU-Z). There would be drop, but this is a big one!

Now, this was for a comparison. I upped mulitplier back to x9 and decided to do one more 32M run at the same CPU clocks as above, therefore lower memory clocks. So, I'm at 384x9=3456MHz, DDR2-960 (667MHz ratio, 4:5) and got 14:11.250, wth

So, now the only thing that came to mind was to run 432x8=3456MHz, DDR2-864 (533MHz ratio, 1:1), which got me 15:11.266.

I repeated 432x8 run again and got the same result as the first time... Some more testing must be done, but it appears to me that perhaps past 400MHz and ratio 667Mhz selected from BIOS, performance really goes down the drain Would that be possible that internal chipset latency gets altered at this point, causing such a drop in performance?

[astaris]

OK, so check this out...

I'm on stock heatsink at this moment and my CPU maxes out at 3.60GHz, 32M stable. So, I first run SPi32M @ 400x9=3600MHz, DDR2-1000 (667MHz ratio, 4:5) and got 13:42.797

So, I'm at 384x9=3456MHz, DDR-960 (667MHz ratio, 4:5) and got 14:11.250

Then I dropped multi to x8 and it appeared to boot at max 440x8. As it was not very stable, I lowered FSB to 432x8=3456MHz, DDR-1080 (667Mhz ratio, 4:5) and got 14:40.641

Some more testing must be done, but it appears to me that perhaps past 400MHz and ratio 667Mhz selected from BIOS, performance really goes down the drain Would that be possible that internal chipset latency gets altered at this point, causing such a drop in performance?

Maybe past 400 Mhz the bios select the 1333 chipset strap and gives you an effective ratio of 5/6.

[dinos22]

Bachus check memtest bandwidth between the two

if you see a big drop you'll beed to investigate timings (i've noticed Gigabyte DS3 do that)

[Rattle]

this bios also alows me 400x8 with 4:5 priming 1 hour now will let it go over night.

ram auto'd at 5-4-4-12 2.25vdimm nice ddr2 1000

[GAR]

ran into some issues with this bios, flashing back to 0507, poor performance as well.

[mackanz]

Then the difference should be very visible between 9X399 and 9X400. Do a comparison with SPD enabled to take everything out of the equation. Theoretically, the difference shouldn't hardly be anything in either superpi or latency tests, but sandra might show a huge difference (as usual )

[sierra_bound]

Andre, have you tried this bios with Kentsfield? Multipliers up to 12 are available, but when I set it to 11 or 12, it ends up going back to 10.

Unfortunately, FSB is not as good with Kentsfield as some of the earlier bios versions.

Has anyone asked an Asus engineer about NB straps? Maybe they are using just one strap to cover all frequencies. If they were using several straps, why wouldn't they just make it available as bios option like on the Bad Axe? By the way, a 1333 strap would kick in much earlier than 400MHz. I think there is more to this than meets the eye. Also, I think some people are confusing the NB strap and the memory strap. They are not the same thing.

[Azh_fx]

Andre, have you tried this bios with Kentsfield? Multipliers up to 12 are available, but when I set it to 11 or 12, it ends up going back to 10.

Unfortunately, FSB is not as good with Kentsfield as some of the earlier bios versions.

what sort of fsb have you managed to get with the kentsfield with this bios?

thanks

[Ace-a-Rue]

what sort of fsb have you managed to get with the kentsfield with this bios?

thanks

here is a partial answer..no mention of bios but FSB....

http://www.ocskills.net/forums/viewt...hp?p=1886#1886

[AndreYang]

Andre, have you tried this bios with Kentsfield? Multipliers up to 12 are available, but when I set it to 11 or 12, it ends up going back to 10.

Unfortunately, FSB is not as good with Kentsfield as some of the earlier bios versions.

Has anyone asked an Asus engineer about NB straps? Maybe they are using just one strap to cover all frequencies. If they were using several straps, why wouldn't they just make it available as bios option like on the Bad Axe? By the way, a 1333 strap would kick in much earlier than 400MHz. I think there is more to this than meets the eye. Also, I think some people are confusing the NB strap and the memory strap. They are not the same thing.

I didn't test 11+ Multipliers, but I test FSB limit is the same other BIOS.

ASUS always cannot promise any overclock FSB higer. They just promise default CPU speed stable. So I only ask ASUS engineer to get me beta BIOS for overclock. Maybe Official BIOS is not good oc to use.



Kentsfield is no problems.

[Ryzalis]

I decided to give 0609 a try today, but I ran into problems with random system freezes, so I reverted back to 0507.

My BIOS flashing history: 0302 -> 0405 -> 0507 -> 0502 -> 0609 -> 0507

>_>