June 2nd 11, 07:21 PM
posted to alt.comp.periphs.mainboard.gigabyte
|
|
|
The System has experienced boot failures because of overclocking
On Jun 1, 10:02*pm, Paul wrote:
red floyd wrote:
Clearing the BIOS worked. *I'm going to leave it at Auto/SPD for memory
timings. *Just one question, should I set to Ganged or Unganged? *What's
the difference? *Also, what effect does the Southbridge Spread Spectrum
setting have?
http://www.bit-tech.net/hardware/cpu...enom_9500_9600...
* * "It’s been reported that the ganged mode usually works better for single-core
* * *performance, but unganged works better for multi-core."
Ganged runs the dual channels as a 128 bit wide memory.
Unganged makes the two channels independent (two 64 bit wide data channels).
If a channel is available, then a core needing to do a cycle on that set of
memory addresses, can start its access.
What's interesting, is their benchmark results on that site, the two
modes made hardly any difference at all. The difference may be more
apparent if two programs were running at the same time, and the
completion time of both programs was measured.
The sensitivity to the setting may also be influenced a bit, by the
size of L3 on the processor. Some cheap AMD processors have no L3,
so they're a bit more dependent on how snappy the memory subsystem is.
You have the option to test both, and see if it makes any difference
at all. As far as I know, the setting likely defaults to unganged (independent)
operation.
*******
Spread Spectrum is a technique for clock modulation. It helps the
manufacturer pass FCC part 15 emissions testing. It has virtually
nothing to do with the end user, and the normal function of the
computer.
I turn mine off. I would only consider turning it on, if I saw signs
of severe interference on the screen of a TV set.
It would really be wiser, if that function wasn't in the BIOS screen.
If the manufacturer thinks it is wonderful, then enable it, and hide
it. Exposing the control for it, implies it isn't really needed.
* * Paul
Thanks for the info, Paul! Really appreciated it!
|