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Asus Z68 Series Information Thread (drivers, BIOSes, overclocking, reviews) **UPDATED 4/22** - Page 75

post #741 of 1418
chi09es, Intel Flash Programming Tool does it easily under DOS/Windows.
fpt.exe -f bios.rom flashes full image with full erase.
But, if you flash BIOS file from asus.com, you lost your motherboard identity: MBID, MBSN, DTS UltraPC key, LAN MACs, so i don't recommend to do it that way.
Use my guide instead.
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post #742 of 1418
Your method doesn't erase the bios, so problems due to faulty modules will persist. The method to use the asus aptio flash tool to downgrade the bios will corrupt your bios! Problems with sleep mode and usb3 are the result of using this method. Also changing modules like OROM in the bios will have the same effect.

Only options I have found to fully erase the bios is as I mentioned above. No data like motherboard identity or MAC's are lost in the process as the are not stored in the bios or written back on flash.

Any way, I recommend any user of a P8Z86 board to buy a spare bios chip with the latest bios file for your mobo installed. Will cost around 15 Euro on ebay,

The bios chip is a 8 leg chip in socket, located right next to the Sata ports and can lifted our with a small screw driver. So you always have a backup available in case of problems. If you have problems with your bios, boot the PC with the spare bios chip installed. Than, with the computer up and running, swap the bios chips (hot swapping) and use my method to erase and re-program the bios.
chi09es.
post #743 of 1418
Quote:
Your method doesn't erase the bios
It does. "AFU.exe bios.rom /p /b /n /r /k1 /k2" erases and reflashes all bios blocks, excluding part of Bootblock (that contains individual data backup), GbE (Intel MAC) and ME FW. Then "fpt.exe -f bios.rom -me" flashes ME FW. So, only blocks that persist are individual data and GbE.
Quote:
The method to use the asus aptio flash tool to downgrade the bios will corrupt your bios!
I have tested it many times, all things are right. MMTool report of 0902 BIOS flashed with SPI-Programmer (I have FT2232-based devboard and use it to program SPI-flash) is identical with report of 0902 BIOS flashed with my method. It boots and works without any issues.
Quote:
No data like motherboard identity or MAC's are lost in the process as the are not stored in the bios or written back on flash.
You are simply wrong. smile.gif
There are following individual data structures in factory BIOS, that are empty in any BIOS file you flash, if you don't added they manually:
Code:
[FD44820B-F1AB-41C0-AE4E-0C55556EB9BD], 3 copies (Bootblock, copy of Bootblock, NonCriticalBlock0), contains:
Realtek MAC on boards without Intel LAN (f.e. P8Z68-V LX), 12 ASCII-coded hex-numbers + "\0" 
Dolby DTS UltraPC technology key (P8Z86-V Deluxe), 38 bytes 
Motherboard ID, 16 bytes
Motherboard Serial Number, 15 ASCII-coded numbers + "\0"
[GbE Region], 1 copy
Intel MAC (Realtek MAC is made automatically from it, no need to store in BIOS), 6 bytes
So, if you flash an unmodified BIOS file, your Intel MAC will be 88 88 88 88 87 88, MBID will show as "To be filled by OEM", MBSN will show as "MB-1234567890" and DTS UltraPC app will not install. OK, full reflash definitely solves many issues, but now you have other issues to solve. wink.gif
Quote:
Any way, I recommend any user of a P8Z86 board to buy a spare bios chip with the latest bios file for your mobo installed.
I have 3 of them to test my methods.
Edited by CodeRush - 5/5/12 at 3:10am
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post #744 of 1418
Virtu is now up to version 1.2.114.
post #745 of 1418
Quote:
Originally Posted by SimpleTech View Post


Don't overclock via Asus software. Go into the UEFI and manually change the settings there. And don't use any preset overclocking profiles, they're all garbage.



Yes, it improves speeds significantly.



No, stick to using the Intel 6Gb/s ports. If you don't have anything hooked up to the Marvell ports, disabled it in the BIOS. Will help a little bit with boot times.



When in the BIOS/UEFI, set Ai Overclock Tuner to Manual. Make sure BCLK/PEG Frequency is at 100.0.

Change the Turbo Ratio to 45 for starters. Only change your multiplier, don't mess with the BCLK.

Internal PLL Overvoltage can be left at AUTO or disabled since this is a minimal overclock. Enable it when you're trying for 4.8GHz+.

Set Load-Line Calibration to Ultra-High.

Change the VRM Frequency to 350 or 360.

Set Phase Control to Extreme. The same goes with Duty Control.

Leave CPU Current Capability at 100%.

CPU Voltage is where it can get tricky. Some CPUs might need more voltage than others. So start off with 1.32v and if that isn't stable, increase it two notches.

DRAM voltage is your memory voltage, you can get the read from the side of the sticks. And don't forget to adjust your Memory Frequency.


my memory is at 1.5v should I leave it as is? and should I set my memory to 1600mhz since it is really at 1600mhz or i'll leave it at auto?
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post #746 of 1418
Thread Starter 
Quote:
Originally Posted by RazorCaT View Post

my memory is at 1.5v should I leave it as is? and should I set my memory to 1600mhz since it is really at 1600mhz or i'll leave it at auto?

If it is rated for 1.5v, then set it to that. The same goes for the memory frequency. Some memory will have XMP profiles making it easier to set the correct settings though I prefer to do it all manually.
post #747 of 1418
Method is tested on P8P67 B3 today (2303 -> 3207, 3207 -> 2303), it works.
Need more testers! smile.gif
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post #748 of 1418
I have the P8z68 MB and want to know Is it worth upgrading to the new 3203 bios? My bios is 6xxx

Thanks...Al
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post #749 of 1418
Thread Starter 
I haven't had any issues with 3203 on my P8Z68-V Pro.
post #750 of 1418
Quote:
Originally Posted by SimpleTech View Post

I haven't had any issues with 3203 on my P8Z68-V Pro.

But it removes the Additional Turbo Votlage option which is important for other users, right?
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