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FAQ about ASUS Motherboard Rampage Formula
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CPU Vcore voltage sometimes is lower than BIOS setting.
4GB memory installed but less memory size detected.
CPU Level Up function.
Memory test failure with QVL memory modules.
License period of bundled Kaspersky Anti-Virus Utility 5.0.
My M/B cannot detect the total volume of my HDDs correctly when I use Raid over 2TB volume, why?.
What is EPU?.
System show 「New CPU installed」message at POST.
Why is CPU Vcore voltage sometimes a little bit lower than BIOS setting?
- Answer:
To ensure better thermal and longer CPU lifespan, ASUS motherboards follow Intel loadline design specification, which defines a processor's peak power and transient response requirements for its Voltage Regulator Module (VRM) or VR Down (VRD) logic. Unlike previous generation of processors, Vcore on a Pentium 4 (and the later Intel CPU) is not static and changes with CPU loading. The illustration below (captured from Intel processor datasheet) shows the deviation from the VID set point. That's why the real CPU Vcore may be different from the BIOS setting.
Notes: Adherence to this loadline specification is required by Intel to ensure reliable processor operation.
For those who are into overclocking, ASUS provides an alternative in BIOS called Load-Line calibration or CPU voltage Damper option. With Load-Line calibration (or "CPU voltage Damper") enabled, this load line slope will be modified to keep voltage stable.
**Please take extra caution when changing the default setting. The system may need better cooling system to work in stable condition when "Load-Line Calibration" is enabled.
***Below is a list of motherboards that support Load-Line Calibration:
Blitz Extreme, Blitz Formula, Maximus Extreme, Maximus Formula, P5E, P5E WS PRO, P5E3, P5E3 Deluxe, P5E3 WS PRO, P5E64 WS PRO, P5E-V HDMI, P5E-VM SE, P5K, P5K Deluxe, P5K Premium, P5K PRO, P5K SE, P5K SE/EPU, P5K WS, P5K/EPU, P5K3 Deluxe, P5K3 Premium, P5K64 WS, P5KC, P5K-E, P5K-V
The actual bootup time is subject to hardware configurations and product models.
The bootup time is counted from powering on the system to Express Gate First Screen.
Internet is connected automatically if network settings are done in advance.
I have install total 4GB memory on my motherboard. However, it can only recognize around 3.1GB or less. My friend's SLI board even less than 3GB. What's up? How should I do to recognize 4GB totally?
- Answer:
If you installed total 4GB memory, the system will detect less than 4GB of total memory because of address space allocation for other critical functions, such as:
- System BIOS (including motherboard, add-on cards, etc..)
- Motherboards resources
- Memory mapped I/O
- configuration for AGP/PCI-Ex/PCI
- Other memory allocations for PCI devices
Different onboard devices and different add-on cards (devices) will result of different total memory size.
e.g. more PCI cards installed will require more memory resources, resulting of less memory free for other uses.
On a SLI system, since PCI-Ex graphic cards will occupy around 256MB, another 256MB will be occupied after you install a 2nd PCI-Ex graphic card. Hence, 2.75GB memory left only if two SLI cards installed on A8N-SLI Premium while 3.0GB memory left with one graphic card without other add-on devices.
This limitation applies to most chipsets & Microsoft Windows 32-bit version operating systems.
If you install Windows 32-bit version operating system, we recommend that you install less than 3GB of total memory. If more than 3GB memory is required for your system, then below two conditions must be met:
1. The memory controller which supports memory swap functionality is used. Chipsets later than Intel 975X, 955X, Nvidia NF4 SLI Intel Edition, Nvidia NF4 SLI X16, and AMD K8 CPU architecture support memory swap function.
2. Windows 64-bit OS which can address more than 4GB memory.
You can check below URLs for reference:
http://dlsvr01.asus.com/pub/ASUS/mb/4GB_Rev1.pdf
http://www.intel.com/support/motherboards/server/sb/cs-016594.htm
What is "CPU Level Up" option in BIOS settings?
- Answer:
CPU Level Up function is an automatic OC function. Based on your CPU, the BIOS will display OC options in terms of higher CPU model. Once selected, BIOS will automatically adjust the all the OC parameters for you. This way, you have a very easy way to get performance out of your CPU. This function can be found under BIOS settings-->Extreme Tweaker-->CPU Level Up.
The configurable options are as follows: [Auto][E6400][E6550][E6700][X6800][E6850][Crazy]. Please note that only CPUs that above your current one are showed. In addition, the option [Crazy] appears only when you use CPU above E6600. For instance, if you are using E6850, only [Crazy] option will be shown; and this option will overclock your E6850 from speed 3.00GHz to 3.519GHz.
To use CPU Level Up to OC from E6550 to E6700, please set CPU Level Up as E6700; save and exit. (Please refer to the picture below.)

CPU speed is now 2.674GHz (E6550 default 2.33GHz).

To use CPU Level Up to OC E6850, please set this option to [Crazy]. The CPU clock speed is OC'd from 3.00GHz to 3.519GHz. (Please refer to the picture below.)

I am using memory modules on the Memory QVL List on this motherboard. But I am experiencing errors in Memtest. How do I solve this issue?
- Answer:
Please update your BIOS to 0401 or later to improve memory compatibility of motherboard. The BIOS file can be download from this link:
http://dlsvr01.asus.com/pub/ASUS/mb/socket775/Rampage_Formula
I have just purchased my board. After I installed the bundled Kaspersky Anti-Virus Utility 5.0, an error jumped out said that the license period has expired. Would you please help resolve this issue?
- Answer:
The motherboard bundled version calculates its license period by a set date instead of the date of software installation. To resolve this issue, please download a new Kaspersky Anti-Virus Key available on ASUS support website. This new key will change license calculation algorithm, and extend your license period to one year from the date of software installation.
Below is the link for downloading the new Key:
http://dlsvr01.asus.com/pub/ASUS/mb/socket775/Stricker
Note 1: As this is an upgrade package, you will need the original version on your support CD pre-installed onto your system prior executing this upgrade.
Note 2: Please check your Kaspersky version before you install it.
Note 3: For detailed installation procedures please refer to the following page:
http://www.kaspersky.com/support/kis6mp1
My M/B cannot detect the total volume of my HDDs correctly when I use Raid over 2TB volume, why?
- Answer:
Due to the limitation of all the chipsets of Raid controllers, currently volume over 2TB will not be recognized correctly.
ASUS has recently introduced a new feature named EPU (Energy Processing Unit), which claims to help to save up to 58.6% of CPU power consumption.
What exactly is this EPU? and what does it differ with the pervious generations of power saving technologies (AiGear and AiGear2) introduced by ASUS in the past years?
- Answer:
Modern CPU power circuits normally phases in either more phase power or digital VRM to offer more stable power, in order to deliver users with a more stable usage environment.
However, this often leads to more power consumption (either more phase power, or simply add more choke in parallel design drains more power than low power phases), or extensive heat (when using digital VRM).
It is due to this reason, ASUS has developed this revoltionary digital power control chip, capables of the instant calculation of exact CPU loading, allowing the power management circuits to:
(1) Dynamically switch between 8 and 4 phase power supply circuit to save the unnecessary power consumption of high number of power phases during low CPU loading, and avoids the unnecessary heat gained by the use of digital VRM controller.
(2) Dynamically switch between 105% ~ 66.7% performance modes to consume power only when necessary. *(Also called AiGear3)
(3) Full hardware implementation to avoid unnecessary CPU load. (0% CPU load due to activation of any EPU features)
The major differences between AiGear, AiGear2, and AiGear3 are as follows:
| Features Supported: | AiGear | AiGear2 | AiGear3
| | Force activation of CPU Throttling | Yes | Yes | Yes
| | Adjustments of CPU Vcore | No | Yes | Yes
| | Overclock support | No | No | Yes
| | Dynamic control based on CPU load | No | No | Yes
| | Full hardware implementation | No | No | Yes
|
I have recently found my system showing a message saying 「New CPU installed」at POST everytime when I boot my system, though I have not changed my CPU recently.
What can I do to fix this problem?
- Answer:
Please kindly try the following trouble shooting procedures to see if the problem can be resolved.
Please kindly consult your place of purchase for further assistance if the issue still exists after trying all solutions below:
1. Refer to instructions in your user's manual for the guide to clear CMOS data.
2. Reinstall CPU.
3. Check if the CPU has gone faulty.
4. Update BIOS to the latest version.
(Source:ASUS)
Related Items:
| ASUS Motherboards
| ASUS Socket 775 Motherboards
| Socket 775 Motherboards
| Intel X38/X48 Chipset Motherboards
| Intel Dual-Core CPU Support
| Socket 775, Intel Core 2 Duo/Extreme
| CrossFire Ready Motherboards
| Socket 775 Cooler
| Pentium 4, Socket T / LGA775 Processors
| Accessories - Motherboards |
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