Archived from groups: alt.comp.hardware.overclocking (
More info?)
'PN' wrote:
| I went to BIOS,and accessed Frequency/Voltage Control,tHE ONLY OPTION
there was the CPU Clock Ratio in
| CPU/DIMM/PCI MHZ (in that order)
|
| I set it to 120/120/40 (CPU-120MHZ,DIMM-120MHZ,PCI-40MHZ)
|
| the speed i got was 780 mhz.
|
| But now my onboard AC97 Sound Driver’s stopped working.
| The system also unexpectedly locks up sometimes.
|
| Any Help ?
___
The setting you selected for the PCI bus speed is too high. The correct PCI
speed is 33 MHz, and things begin to go wrong the PCI bus speed is much over
37 MHz (and that can vary according to the motherboard speed and the devices
that are connected to the PCI bus [your the integrated audio function on
your motherboard is connected to the PCI bus]). At a 40 MHz PCI bus speed
your hard drives (also connected to the PCI bus) will likely have problems
with data corruption.
STOP USING THE 40 MHz PCI bus setting. Use ONLY a PCI bus speed of 37 MHz
or lower. And check your hard drives for corruption that already may have
occured.
If the BIOS gives you no choice but a PCI bus speed that is 1/3 the CPU
clock speed, then 36 MHz X 3 = 111 MHz is the highest CPU clock speed usable
for your motherboard, giving a 111 MHz X 6.5 = 722 MHz CPU speed.
To repeat; it may be that you have an Original Manufacturer Motherboard,
produced by Gigabyte for a manufacturer of desktop systems. That is one
explanation of the fact that the board id you post is not listed by
Gigabyte, and that EasyTune 4 does not operate as explained by Gigabyte. It
may be that the BIOS for your motherboard has no facility for setting the
CPU voltage or using a different multipler (such as 1/4 rather than 1/3) for
the PCI bus speed. If this is the case, then your motherboard limits
overclocking to about what you had already reached.
BUT, you have not really provided EXACT information about your system. When
dealing with computer systems, EXACT information is necessary. Unless you
post FULL and EXACT information about your system, then there is no more I
can add.
Did you build the system yourself?
WHERE and HOW did you obtain your motherboard? As part of a purchased
system? Did you buy it new, from a reputable dealer? Did you buy it used?
Do you have a manual? What does the manual say about overclocking settings
in the BIOS?
Did you get a Gigabyte CD containing EasyTune with the motherboard?
Have you tried to get information about your motherboard, using the Gigabyte
website? (I can't, the specific motherboard id you posted isn't listed, and
the support section of the Gigabyte website does not seem to work.)
My conclusion is that you have a limited, OEM version of the Gigabyte
GA6IWEF or GA6IWFL (note that the middle symbol is 'eye', not 'one'), and
that it is not overclockable more than ~ 10% with a 100 MHz FSB CPU.
Unless you can post addition information, then that's it for overclocking
that motherboard.
If you want to overclock, you need
a motherboard that is overclocking friendly that has, at a minimum
ability to set the CPU voltage
abiltiy to set the CPU clock speed
abiltiy to set the AGP/PCI multiplers to keep the PCI bus speed at 37
MHz or below
other settings that can be useful
memory timings
memory voltage
memory speed
All Intel CPUs are very overclockable when
installed into an overclocking friendly motherboard
used with memory capable of operating at increased speeds
used with an adequate power supply
used with adequate cooling.
At this point, it is hardly worth replacing your motherboard unless you can
get a very low price on a used motherboard, but when just beginning to
overclock, it is a good idea to start with the best components you can
afford (to reduce the number of things that could limit the overclock.) You
might consider just being satisfied with 714 MHz until you replace your
system.
Finally:
Read information from overclocking websites.
Read information in the specifications for motherboards listed in
manufacturer websites.
Read reviews of the components you have or purchase.
Download manuals from manufacturer websites.
Read many, many times, purchase once.
If you purchase a motherboard, choose one from a manufacturer that many,
many posters in this newsgroup have also purchased from.
Choose a model for which posters to this newsgroup have reported good
results.
I can recommend the manufacturers aBit and ASUS. There are 'overclocking
friendly' motherboards from other manufacturers, it is just that I have not
personally used such motherboards. There are motherboards that are very
defininitly NOT overclocking friendly (any Intel manufactured motherboard),
any motherboard in a system manufactured by a major system manufacturer
(DELL, HP, IBM, Sony.)
Unless you can post new information, that's it.
I hope this helps. Don't give up on overclocking.
Read more. Based on your investigations, post more questions (most of which
have been answered before in this newsgroup.) You can used the Google
newsgroup archives to find additional information (for example, search
Google groups for messages posted to the newsgroup
alt.comp.hardware.overclocking containing the word Gigabyte.)
Phil Weldon
"PN" <UseLinkToEmail@HardwareForumz.com> wrote in message
news:7_292175_61e36709581b4fb65feea18209afe0a0@hardwareforumz.com...
>
..
..
..
> I went to BIOS,and accessed Frequency/Voltage Control,tHE ONLY OPTION
> there was the CPU Clock Ratio in CPU/DIMM/PCI MHZ (in that order)
>
> I set it to 120/120/40
> (CPU-120MHZ,DIMM-120MHZ,PCI-40MHZ)
>
> the speed i got was 780 mhz.
>
> But now my onboard AC97 Sound Driver’s stopped working.
> The system also unexpectedly locks up sometimes.
>
> Any Help ?
>
> --
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