I
ian lincoln
using pc3200 ram. also known as 400mhz or so i thought. have agpx8
graphics card so why does nero report my bus speed as 166?
graphics card so why does nero report my bus speed as 166?
M
Mike T.
ian lincoln said:
That probably is the bus speed of your CPU. The FSB of the CPU does not
need to be matched with the pre-DDR bus speed of your RAM. It's also
possible that your RAM bus really is 166. That would work just fine with
DDR400 RAM, as the RAM would be slightly underclocked. But more likely, the
mainboard is running the CPU and RAM asynchronously, and there is nothing
wrong with that. I think if you look up the specs for your CPU, you will
find that it is clocked at some multiple of 166MHz, such as 10 X 166, or
about 1.7GHz actual clock speed. Of course, if that was an AMD CPU, it
would be marked higher than that, like a "3000+" or something.
-Dave
D
dawg
What cpu do you have? If the CPU is supposed to run at 166 then that's what
the BIOS will set for ram speed. If it's a 200 fsb chip like the A64 2800
then the bios should choose 200. Sometimes the BIOS doesn't choose
correctly,so you change it manually. If you weren't aware PC3200 mens it is
rated up to 3200(400FSB)
the BIOS will set for ram speed. If it's a 200 fsb chip like the A64 2800
then the bios should choose 200. Sometimes the BIOS doesn't choose
correctly,so you change it manually. If you weren't aware PC3200 mens it is
rated up to 3200(400FSB)
I
ian lincoln
do you mean 300fsb x8 =3200?
~The chip is an athlon xp (barton?) 2800. Actual speed is 2.13ghz.
~The chip is an athlon xp (barton?) 2800. Actual speed is 2.13ghz.
B
Bob Knowlden
I'm not familiar with the 32 bit Athlons (I've used a couple of A64 CPUs),
but I guess that your XP 2800+ is a 333 MHz bus model:
http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/26237.PDF
If so, it's really supposed to run at 2.083 GHz.
Depending on the context, its bus frequency is 166 MHz or 333 MHz (2X166,
using double data rate memory). DDR333 RAM is also known as PC2700 (8 bytes
per tick). DDR400 = PC3200.
If you run the RAM synchronously with the CPU, it will run at the PC2700
rate. It may be possible to set a different memory multiplier in the
mainboard's BIOS to run at the full PC3200 rate; I did that a few years ago
on a P4 system.
None of the above have much to do with your AGP 8X graphics card. (That's a
separate bus frequency, normally 66 MHz.)
I hope that's not too confusing.
http://en.wikipedia.org/wiki/DDR_SDRAM
http://en.wikipedia.org/wiki/Athlon_xp
The wiki Athlon article mentions overclocking. It'd be neat if you could run
your 2800+ with a 200 MHz bus (2.5 GHz actual, equivalent to a 3.6 GHz
performance rating), but it seems optimistic.
Address scrambled. Replace nkbob with bobkn.
but I guess that your XP 2800+ is a 333 MHz bus model:
http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/26237.PDF
If so, it's really supposed to run at 2.083 GHz.
Depending on the context, its bus frequency is 166 MHz or 333 MHz (2X166,
using double data rate memory). DDR333 RAM is also known as PC2700 (8 bytes
per tick). DDR400 = PC3200.
If you run the RAM synchronously with the CPU, it will run at the PC2700
rate. It may be possible to set a different memory multiplier in the
mainboard's BIOS to run at the full PC3200 rate; I did that a few years ago
on a P4 system.
None of the above have much to do with your AGP 8X graphics card. (That's a
separate bus frequency, normally 66 MHz.)
I hope that's not too confusing.
http://en.wikipedia.org/wiki/DDR_SDRAM
http://en.wikipedia.org/wiki/Athlon_xp
The wiki Athlon article mentions overclocking. It'd be neat if you could run
your 2800+ with a 200 MHz bus (2.5 GHz actual, equivalent to a 3.6 GHz
performance rating), but it seems optimistic.
Address scrambled. Replace nkbob with bobkn.