Question about ASUS Intel 845 Chipset P4B (P4B WOA) Motherboard

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How to set the CPU frequency (MHz) on bios set up?

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  • Brian Perry
    Brian Perry May 11, 2010

    Once you boot up into bios, you should be able to change the frequency under the chipset feature. It varies for whatever bios you have. If you can't find it, look me up and I'll try to walk you though.

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  • 270 Answers

Enter in bios setup.change frequency in prescribed column

Posted on Jan 12, 2009

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Athlon processor upgrade assistance:


Go to this link:

http://us.msi.com/?func=searchresult&keywords=ms-7025

Select the model motherboard you have and click on the CPU support link, it will show you a list of CPU's that are supported. You have a socket 939 board and AMD CPU's are now AM2, AM2+ and AM3 socket, which are 940 pin. It may be difficult to find a new CPU for your motherboard that is new since they have not been made in awhile.

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I have a Gigabyte GA-7N400-L motherboard CPU problem


dit you try a bios update?Some motherboard needs a bios update for a newer cpu.

Jan 17, 2010 | Gigabyte GA-7N400-L Motherboard

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2600+ with ASUS MB A7V266-E/AA


Here is the CPU Support list from Asus Support, for the Asus A7V266-E,
http://support.asus.com/cpusupport/cpusupport.aspx?SLanguage=en-us&model=A7V266-E/AA&product=1&os=17

Scroll down the list. 34th one down, that is listed.

1.Did you get the Athlon XP 2600+ that has a 266MegaHertz, (MHz), Front Side Bus? (FSB)
The AXDA2600DKV3C?

There is an Athlon XP 2600+ that has a 266MHz FSB, and one that has an FSB of 333MHz. <-This one Won't work.
Model number ->AXDA2600DKV3D will Not work.
Both are Thoroughbred A/B Core models.

The AXDA2600DKV3C has a 12.5x multiplier.
Your 1900+ has a 12x multiplier. (AXDA1900DUT3C) They both have an FSB of 133MHz. (Shown as 266MHz because AMD processors are 'Double-Pumped')

A.The AXDC2600DKV3C will not work. It has a 16x multiplier. (Thorton Core)
B.The AXDC2600DKV3D will not work. It has a 333MHz FSB. (Thorton Core)
C.The AXDA2600DKV4C will not work. It has a 15x mulitplier. (Barton Core)
D.The AXDA2600DKV4D will not work. It has a 333MHz FSB. (Barton Core)
E.The AXDA2600DKV4E will not work. It has a 400MHz FSB. (Barton Core)

2.Are the jumper blocks -> CPU RATIO, and SYSCLK, still set in the Jumper Free Mode?

By the factory default settings these jumper blocks, (DIP switches), should already be set to Jumper Free Mode.
The white DIP switches should be in the OFF position. (The white switches will be DOWN, towards the numbers on the jumper block CPU RATIO. They will be UP, away from the numbers, on the jumper block SYSCLK))

The CPU RATIO jumper block is right above the processor. It is a blue rectangular block.
The SYSCLK jumper block is down the motherboard, right below the AGP graphics card expansion slot. (And above the first PCI expansion slot)

If those two jumper blocks are not set to Jumper Free Mode, set the DIP switches in the jumper blocks to this setting.

Now go into BIOS Setup. In the main menu use the Right Side Arrow key on your keyboard, and highlight Advanced.
If -> CPU Speed is set to Auto, you won't have access to set your CPU parameters. If it is set to Manual, you will see them. If it's set to Manual, write down the headings, (CPU:System Frequency Multiple, System/PCI Frequency (MHz), and so on) Write down the numbers to the right of these headings. If something goes wrong, you can go back into BIOS Setup, and change them back.

1.CPU:System Frequency Multiple should be
12.5X
2.System/PCI Frequency (MHz) should be
133/33
3.System/DRAM Frequency Ratio should be
(Auto)
4.CPU Vcore should be (1.750)
5.CPU Level 1 cache, and Level 2 cache should be (Enabled)
6.CPU Level 2 cache ECC Check should be (Disabled)
7.BIOS Update should be (Enabled)
8.PS/2 Mouse Function Control (Auto)
9.USB Legacy Support (Auto)
10.OS/2 Onboard Memory >64M (Disabled)

Leave the rest alone.

The AXDA2600DKV3C uses 1.65 volts, has a 12.5 clock multiplier, and a 266MHz FSB. (You will see 133MHz, and set all your settings to 133MHz. AMD processors are 'Double-Pumped'. Intel processors are 'Quad-Pumped')

Aug 10, 2009 | ASUS A7V266-E (A7V266-E AA/PA/WOR)...

4 Answers

Motherboard and CPU Frequency


When you power up the computere press F2 or "del" or F5 key towenter in bios then load optimal defaults settings.then save then check.
If still problem arise then pull out cmos cell for 15 minutes from motherbord then it auto reset to factory defaults.

Jul 24, 2009 | ASUS P4PE-X Motherboard

1 Answer

Overclocking a CPU Type Intel Pentium IIIE, 581 MHz


If you have an adjustment for the VCORE voltage in your bios, bring it up by one value, then try overclocking the CPU.

Apr 20, 2009 | QDI Group QDI Advance 10T Motherboard

1 Answer

Problem with FX500 VGA


In your bios, please enable the
AGP 3.0 Calibration cycle. Also, make sure your Aperture size is correct to the size of the card.

Also, in bios under PC health, check to see what the VAGP is running at, if it is not 1.5v, then your card is not getting enough power.

Also, in the advanced chipset features, make sure that the Init Display First is set to AGP.

When these are all set, reboot and go back into bios, check to see if you can change AGP to 8x now.

Mar 26, 2008 | EPoX EP-8VTAI Motherboard

1 Answer

RAM not running at full speed


Go to page 33 in your manual, see DRAM Clock/Drive Control & press enter. You can tweak your memory to run faster however your manual suggest not too. Hate to see you burn it up. As you will see everything is set to Auto:
Max Memclock (Mhz) [Auto]
1T/2T Memory Timing [Auto]
CAS# latency (Tcl) [Auto]
When DDR Timing Setting by is set to Manual, use this item to set the DRAM frequency. Would be nice to have a side panel fan blowing on your memory.
Link to your board.: http://www.ecsusa.com/ECSWebSite/Products/ProductsDetail.aspx?detailid=455&DetailName=Specification&MenuID=1&LanID=9

Jan 04, 2008 | EliteGroup K8M800-M2 Motherboard

1 Answer

Motherboard Jumper free code


Set Jumper Free Mode (manual) and new FSB in BIOS Setup - menu "CPU External Frequency (Mhz)".

Oct 24, 2007 | ASUS P4SP-MX Motherboard

2 Answers

4 x 1GB DDR400 installed; only 3GB recognized by MOBO


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 & Windows XP 32-bit version operating system. If you install Windows XP 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. The latest chipsets like Intel 975X, 955X, Nvidia NF4 SLI Intel Edition, Nvidia NF4 SLI X16, and AMD K8 CPU architecture can support the memory swap function. 2. Windows XP Pro X64 Ed. (64-bit) or other 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

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