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What exactly is a FBS?

post #1 of 11
Thread Starter 
Can everyone explain to me in one or two sentences? These terms actually.


Front-Side Bus:
Northbridge:
South Bridge:
Super I/O:
Flash Rom:
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post #2 of 11
Front-Side Bus: Main system bus. Links processor with rest of system. Increasing this increases rate which processor communicates with rest of system.

Northbridge: The central hub of the computer. Everything is directly or indirectly linked to this in some way, shape, or form. Memory and peripheral buses like USB and PCI are some of the systems which do not connect to it. The FSB links this and the Processor together, and on older systems, the Memory bus would be linked to this as well. On newer systems its faster to run the memory right to the chip.

South Bridge: This is the "peripheral hub" of the system. Every lesser bus, such as SATA, USB, PCI, and lesser PCI-E slots (x1, x2, x4, and sometimes x8) connect to this. If its a relatively slow peripheral, its likely to connect to it.

Super I/O: This deals with things like IDE (i think), Floppy, the Parallel ports, and the Serial ports. In short, it deals with all the legacy ports on any computer.

Flash Rom: This is ROM based on flash memory. Only writable to under special circumstances, and even then its a PITA. This or these chips contain the critical ultra-low level firmware required to operate a device on, in, or attached to a computer. Without it, that device would not be able to initialize and function.
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post #3 of 11
Just Google each one and click Wikipedia for a better understanding
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post #4 of 11
Thread Starter 
Thanks Cyrious!
SO basically the NB and the SB are a group of parts?
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post #5 of 11
Quote:
Originally Posted by xpurpleblob View Post
Thanks Cyrious!
SO basically the NB and the SB are a group of parts?
Chips actually.
    
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post #6 of 11
Quote:
Originally Posted by xpurpleblob View Post
Thanks Cyrious!
SO basically the NB and the SB are a group of parts?
They're two individual chips, the biggest ones on your mobo and usally covered by a heatsink. Unless you have a P55 chipset, in which case you don't have a North Bridge. The memory controller and the graphics communicate directly with your CPU, but that is a little off topic I guess

EDIT: I meant to say the memory controller is located on the CPU itself, but you could have figured out what I meant.
Edited by FreeWillzyx - 4/29/11 at 7:53pm
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post #7 of 11
Quote:
Originally Posted by Cyrious View Post
Front-Side Bus: Main system bus. Links processor with rest of system. Increasing this increases rate which processor communicates with rest of system..
Here's a question for you. Intel uses the term BCLK (base clock) and AMD uses the term HTT (hypertransport) to replace the FSB. I never really got a grasp if they were the same as FSB or not though. I mean, in the BIOS you never see the term FSB, but by raising the BCLK or HT you are increasing the speed of your system and also they are all measured in Mhz. I always just assumed they were the same, but I think there may be a little more to AMDs HT. Am I wrong?
Edited by FreeWillzyx - 4/29/11 at 8:09pm
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post #8 of 11
Quote:
Originally Posted by FreeWillzyx View Post
Here's a question for you. Intel uses the term BCLK (base clock) and AMD uses the term HT (hypertransport) to replace the FSB. I never really got a grasp if they were the same as FSB or not though. I mean, in the BIOS you never see the term FSB, but by raising the BCLK or HT you are increasing the speed of your system and also they are all measured in Mhz. I always just assumed they were the same, but I think there may be a little more to AMDs HT. Am I wrong?
The "Front side bus" connect(ed) the CPU with the Northbridge. Since there is no northbridge on a P55 (or P67) system, there is no need for a front side bus. The CPU communicates directly with the memory, chipset, and graphics through the on-die IMC, the DMI (direct media interface) and on-die PCIe controller, respectively.
Edited by pursuinginsanity - 4/29/11 at 8:13pm
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post #9 of 11
Quote:
Originally Posted by pursuinginsanity View Post
The "Front side bus" connect(ed) the CPU with the Northbridge. Since there is no northbridge on a P55 (or P67) system, there is no need for a front side bus. The CPU communicates directly with the memory, chipset, and graphics through the on-die IMC, the DMI (direct media interface) and on-die PCIe controller, respectively.
I know the p55(67) don't ahve a north bridge, but what about the southbridge? and x58 boards, don't they use BCLK intead of FSB? They have a northbridge, only the IMC is on die, not the VGA interface.

Although I guess I was right to assume that HTT and BCLK replaced the FSB on newer architectures.
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post #10 of 11
The northbridge and south bridge have been replaced by the IOH and ICH respectively on X58. For P67 the IOH and ICH are combined into a PCH, platform controller hub. All future Intel boards will have the PCh instead of the two parts, the main reason being that the PCi-E controller is in the CPU, which wasn't the case for X58.

BLCk = base clock its called the base clock because its the clock that the CPU, QPI, RAM, and UNCORE frequencies are derived from for X58, and some of those for P67.
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