Question about Syntax SV266A SKA KT266A Motherboard

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What is max new cpu speed to change for old cpu ? k7sv266ad

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  • dick cory Jul 13, 2012

    Syntax was bought out by another co who does not support the syntax MB. Its a long time since I upgraded the cpu (which I ,just by chance, found at a surpluss website for $3.) this raised the cpu to 233mz. This I understand is min speed necessary to access the internet There is a dip swich which needs to be reset. (I will have to open my computer up to find then)

    I upgraded to a pentium mmx and use 1,300,000 mem.

    If you are still looking to do this, email me at rb0000@hotmail.com.
    ****

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The KT266A is a VIA motherboard chipset,

http://en.wikipedia.org/wiki/List_of_VIA_chipsets#Slot_A_and_Socket_A

The motherboard chipset for your motherboard, consists of a Northbridge, and Southbridge chip.

The Northbridge is a VIA 8366A
The Southbridge is a VIA VT8235

http://en.wikipedia.org/wiki/File:Motherboard_diagram.svg

[Note*
CPU = Central Processing Unit. Another term used is Microprocessor, or Processor for short ]

The Northbridge chip handles the faster capabilities of a computer.
Handles the Processor, Ram Memory, and HIGH-speed graphics.

[A graphics card installed into a PCI expansion slot is Not high-speed graphics.
Integrated Graphics is Not high-speed graphics.

AGP and PCI Express are high-speed graphics.
If you have an AGP graphics expansion slot, it is handled by the Northbridge chip.
If you have a PCI Express expansion slot, it is handled by the Northbridge chip ]

The Southbridge chip handles the slower capabilities of a computer. This is shown in the diagram.

The VIA KT266A's Northbridge chip, (VT 8366A) supports AMD processors with UP TO a 266MHz Front Side Bus.
(266MHz FSB)

In the chart you see under the FSB heading -> 100 - 133MHz
100MHz to 133Mhz.

AMD processors are 'Double-Pumped'.
Therefore 133MHz becomes 266MHz.

233Mhz with the jumpers at their present positions?

Weird!

Looking at the motherboard, as it is mounted in the computer case; Processor to the Top, Ram Memory slots to the Right,
5 White PCI slots to the Bottom;

The J4 jumper is above the CMOS battery.
The CPU Frequency Select jumper.

(The J1 jumper is right next to the CMOS battery. To the left. That is the Clear CMOS jumper)

The jumper has 3 pins. Number 1 pin is on the LEFT.
From Left to Right; Pins 1, 2, and 3.

With a jumper block,

http://en.wikipedia.org/wiki/File:Jumperblock-shunts.jpg

,on Pins 1 and 2, you have a 100MHz FSB.

With a jumper block on Pins 2 and 3, you have a 133MHz Front Side Bus.

Processor you pick have a broken pin?

You can use AMD Athlon processors with up to a 133Mhz FSB, or AMD Duron processors with up to a 133MHz FSB.

[Actually 200MHz FSB, and 266MHz FSB. Remember what I stated about Double-Pumped ]

Example,

http://www.weirdstuff.com/cgi-bin/item/13160

Here is a link to a free User Manual, for the Syntax SV266A motherboard,

http://www.scribd.com/doc/41762039/Manual-Sv266a

(Just keep scrolling down)

For additional questions please post in a Comment.
Regards,
joecoolvette

Posted on Jul 14, 2012

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Key Features
Form Factor Micro ATX
Compatibility PC
Chipset Intel 865GV
Compatible Processors Intel Pentium 4
Front Side Bus Speed 800 MHz
Technical Features
Integrated Input/Output Ports USB 1.1 x 4 • Serial Port x 1 • RJ45 Lan Port x 1 • PS/2 Mouse x 1 • PS/2 Keyboard x 1 • Parallel Port (ECP/EPP/SPP) x 1 • Floppy Port x 1
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South Bridge Chip Intel ICH5
Processor
Socket Type Socket 478
Max supported CPUs qty 1
Memory
Number of Memory Slots 4 x DIMMs
Supported RAM speeds 400 MHz
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so this is the board..no doubt that the cpu fits and is a good choice for you.
however,if the old one works fine and this one ,even if it is new,does not wiork,the only rational conclusion is that this one is malfunctioning ,maybe from the factory,or maybe one of the pins doesnt make a real contact.
check very attentive the integrity of the pins and of the cpu socket in the motherboard.
there are also some cases that the motherboard doesnt support the high Frequence of the new processor,but that was a problem for the old PCs..I doubt you have it with your motherboard.
I suggest you to bring it back and to ask for a replacement,or at least go with it to  a specialised cervice and let them check it.
sorry for not beeing a huge help to you,so dont rate my answer if you dont feel to..
bye bye and good luck..keep me up to date with your situation
bye

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Have you changed anything in the BIOS? Set to safe defaults.

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