Processor advice please

  • Thread starter Thread starter Alistair
  • Start date Start date
That is correct. Any type of bus is dependent on the processor. You
can't run any processor that has no bus. Prove me wrong.
 
http://www.computerhope.com/jargon/f/fsb.htm

FSB:
Short for Front Side Bus, FSB is also known as the Processor Bus, Memory
Bus, or System Bus connects the CPU with the main memory and is used to
connect to other components within the computer. The FSB can range from
speeds of 66 MHz, 133 MHz, 100 MHz, 266 MHz, 400 MHz, and up. The FSB
is now another important consideration when looking at purchasing a
computer Motherboard or a new computer.

The FSB speed can generally be set either using the system BIOS or with
jumpers located on the computer motherboard. While most motherboards
will allow you to set the FSB to any setting ensure that the FSB is
properly set unless you plan to Overclock the computer.

Issues such as hardware lockups, data corruption or other errors may
arise with older hardware, such as old SCSI cards and a newer front side
bus such as a motherboard with a 100MHz FSB. Verify your components
compatibility with your motherboard and/or Motherboard FSB speed. In
addition verify that the FSB is properly set overclocking the computer
can also cause these types of issues.

http://www.webopedia.com/TERM/H/HyperTransport.html

HyperTransport:
HyperTransport technology is a high-speed, low-latency, point-to-point
link designed to increase the communication speed between integrated
circuits in computers, servers, embedded systems, and networking and
telecommunications equipment up to 48 times faster than some existing
technologies. HyperTransport technology is usually integrated directly
into the processor, but in some cases HyperTransport is used as an
integrated, high performance I/O bus that pipes PCI, PCI-X, USB,
Firewire and audio/video links through the system.

HyperTransport technology was invented at AMD with contributions from
industry partners and is managed and licensed by the HyperTransport
Technology Consortium.
 
http://www.computerhope.com/jargon/f/fsb.htm

FSB:
Short for Front Side Bus, FSB is also known as the Processor Bus, Memory
Bus, or System Bus connects the CPU with the main memory and is used to
connect to other components within the computer.
Click to expand...
While this is mostly correct, the memory bus to my knowledge has never
been known as the FSB. It is, well, the memory bus, pure and simple, and
these days either connects to the system chipset northbridge or direct to
the cpu in the case of the K8.
http://www.webopedia.com/TERM/H/HyperTransport.html
Click to expand...
Sounds good to me. So the FSB of the K8 (cpu to chipset northbridge) uses
an HT link. I think that's what I've been saying all along.:-)
 
Is there a engineer in the group that can explain the electrical transport
system of the HT link on the AMD 64 MB's and how it related to the cpu bus
and if it is linked to the memory bus, if so how is it linked if not what is
linked from the memory to the cpu. Please refrain from using FSB just
explain how the busses are connected and to what and are they interlinked.

thanks,
 
Is there a engineer in the group that can explain the electrical transport
system of the HT link on the AMD 64 MB's and how it related to the cpu bus
and if it is linked to the memory bus, if so how is it linked if not what is
linked from the memory to the cpu. Please refrain from using FSB just
explain how the busses are connected and to what and are they interlinked.
Click to expand...
I used to be an engineer. Does that count.:-)
The HT link (FSB) of the A64 is one of 2 buses that connect to the CPU.
The other being the memory bus. The clock speed of the FSB (system bus, or
whatever you want to call it) is 200MHz by default. This clock speed is
what is used by the multiplier in the cpu to determine cpu clock speed. I
don't understand what you mean by how it's related to the cpu bus. It is
the CPU bus, at least one of them, the other being the memory bus which
connects to the system memory. The FSB connects to the chipset northbridge
and all data to and from the system with the exception of main memory goes
back and forth over the FSB (HT link). In all previous x86 cpu's memory
data also traveled over this bus since it was the only bus. The memory bus
in the earlier cpu's connected to the northbridge memory controller and
had to share the bandwidth with the other system data that traveled over
the FSB. Sorry, I couldn't refrain from using the FSB as that is what the
HT link is as we are talking about. Anyone that says differerent just
doesn't understand any of the system or how it operates. FSB describes it
perfectly. Why not system bus, or HT link? OK, I'll answer that too (even
though the bios of my board calls it the system bus). I'll start with
system bus. What does that mean? Nothing specific. The FSB (HT link),
memory bus, PCI bus, AGP bus, etc. are all system buses, so it has no
place being used for one in particular. OK, why not HT link? Well an HT
link is just another bus type. It's a general usage bus and can be (and
is) used in many more applications than it is used as a FSB. If you want
to know the different apllications it's currently in use for see the below
link. Or just look at the Opteron with multiple HT links. So now let's get
to the definiton of FSB. What is it? It is a bus between the CPU and
chipset northbridge. It's very specific, and in the case of the K8, it
just happens to be an HT link type bus instead fo the previous paralell
type.

http://www.hypertransport.org/consortium/cons_faqs.cfm
 
By the way, you can use PCI cards in PCI Express
slots, but not AGP cards.
Click to expand...

Nope, thats false. PCI express is a completely new bus technology,
and is totally incompatible with PCI or AGP.

I think what you mean is: you can use a PCI Express 1x card in a 1x,
2x, 4x, 8x or 16x slot. You can use a PCIe 2x in a 4x, 8x, or 16x
slot. You can use a PCIe 4x in an 8x or 16x slot. Finally you can
use an 8x in a 16x slot.
 
otay this is the truth amd64 HT wont work until you run 64 bit OS so you are
still runing the same bandwidth you can go buy the fastest AMD64 or board
its junk before the technoligy is ready
 
otay this is the truth amd64 HT wont work until you run 64 bit OS so you are
still runing the same bandwidth you can go buy the fastest AMD64 or board
its junk before the technoligy is ready
Click to expand...
Don't know where you get your info, but it's total BS. The system won't
run without a FSB, and the FSB is an HT link.
 
Okay, what "Jeff Miner" posted is total BS.

Hypertransport is a high speed interconnect between the on board controller
and the AGP/RAM/PCI-e busses. It is a packet based protocol. Current
implementation is up to 2GHz. This is a real time, all the time hardware
solution. It is also duplex. It works with any supported OS, and the OS
and applications do not have to be Hypertransport aware to take advantage of
it.


Side note to Jeff Miner:

When you have no clue what you are talking about, you should refrain from
posting...you only make yourself look like an idiot (as your response here
did). In addition, you might want to learn how to spell, as well as
reeducating yourself with the basics of building a proper sentence.

Bobby
 
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