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- Im desperate
December 24, 2009, 5:49 pm
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Help me, my cpu keeps overclocking... From 2,2 to 2,7Ghz.. It causing
my games run too fast or some of them slow. Plus usb devices are
working only in
BIOS. In bios everything is fine as it should be. But
when it loads OS its
overclocking itself again even after i reset cmos
and going to 2,7 again...
Sometimes its possible to play 5 min fine on
2,2 but then it changes and becomes
2,7 again. I tried reinstalling
windows 3 times - didint help. Is there anyway
to downclock my PC except
bios? I tried some software but havent found any
FSB Bus is going from 200x11 to 243-250x11, Memory bus from 150 to
Hypertransport from 800 to 1000..
Please anyone help me what can i do to prevent it from changing? It
up my PC and i dont know what the cause of it... I dont
think that anyone faced
that problem before...
I didn't overclock it.. It always keeps coming back and I can't
Re: Im desperate
Maybe you're running a utility that does the overclocking
for you ? Like RMClock or the like ? I don't see anything
in the Asrock documentation, to suggest they have a utility
that does it. They support overclocking via the BIOS.
Re: Im desperate
I tried different clock programms, but it still doesnt help.. Overclock
coming back. I don't know what's wrong with my pc. If pc stays
down for 20 min
Overclock is gone for 10 min and then again its coming
back until i shutdown pc
for another 20 min.. All temperatures are below
40"C and GPU is below 60. Also
during those 10 min usb devices are
working too, but after overclock appears
they stop working immediately.
It started when i did something wrong with Cheat
Engine i guess, but
maybe its just a coincedence.
Also maybe it happened after i played Dragon Age : Origins... I dont
sure how that **** started.
Re: Im desperate
The description of this tool, doesn't look like something that would be
trying to write to the clock generator chip. This deals mainly with
I don't think I've ever heard of a clock generator chip going on
a "joy ride" all by itself. If it is to change frequency, something
has to write the control registers inside it.
You would need some kind of tracing tool, that can tell that the clockgen
interface is being accessed. And I haven't a clue what you'd look for.
One thing I try sometimes, is a clean install on a spare disk. The
idea being, to see whether the situation is a function of my crusty
Windows install or not. I leave my network disconnected, install Windows
and then do testing. With the network disconnected, there is no
attempt to send activation info to Microsoft. I only use an install
like that for a few days of testing, before discarding it. If the
symptoms disappear, then you know *something* is inside the other install.
There is a small possibility the clockgen chip could be defective.
But based on the posts I read every day, there is nothing to suggest
those chips are anything but the highest quality. I can't remember
the last time I've run into or heard of a problem caused by one
of those chips.
Another question for you. A clockgen kind of program, should be
checking the registers on the chip on a regular basis. Do the
sliders on the clockgen program "move on their own" ? That implies
another agent is writing to the chip. If the clockgen controls
aren't moving, then perhaps the chip is changing speeds on its own.
To measure frequency, you need another time base to make the measurement.
A possible source might be the RTC clock. So perhaps the frequency
is wrong, because the time clock is wrong. Do you have any problems
with the motherboard maintaining time from when you shut down, until
you start up and check the BIOS screen the next day ?
If you were to boot a copy of memtest86+, does the frequency reported
in there change over a period of testing ? I keep a copy of that on
a floppy, and use it sometimes as a basic hardware test case. It tests
memory, but also has some information displayed at the top of the screen.
Give it a try. Check the display at the top, and see if it changes over
time. Since your Windows OS or Linux OS is not running when this
is booted, it would be a test of whether the frequency is stable with
another kind of test in place.
The download for the floppy version, contains a floppy formatter.
It loads the floppy with binary test code. The floppy cannot be listed
in Windows afterwards - it has no conventional file system on it. But
the floppy can be used to boot the computer, even though you cannot
see anything on the floppy - the executable code is booted as if it
was a boot loader.
Re: Im desperate
I tried using memtest86 and yes CPU clock changed. from 2200 to 2700. It
keeps changing but i have no idea why it keeps happening.
****it, I've tried everything I can't change CPU FSB. If I change
in BIOS +10 or -10 CPU FSB is still 40 more than it should
be... I don't
understand whats wrong and cause of that, I cant use any
usb devices. Btw if I
put Auto in (CPU Frequency settings) then in BIOS
never shows thats CPU is
Overclocked, but if I put PCI ASync and if its
200x11 then it should be 2200Mhz,
but it shows 500Mhz more... Im nearly
sure that noone ever had such problem as
Changed yesterday CPU Frequency to 220 it should be 2,4Ghz, but no
2,9. always ~500Mhz more than it should be. If i try to go
below 186 it wont
boot anymore. And if i keep it @186 CPU freq than its
still 226 and has around
13% Overclock The time only when its not
overclocked is when i turn off pc for
like 20-30 min and then i turn it
on it stays stable w/o overclock for 5-10
mins, not sure but I think
when i enter game it changes much faster, but i
checked the temperatures
and everything is below 45"C and GPU is about 60.
I've runned many hardware test and I think there was no problem.. Well
i runned OCCT :
http://filebeam.com/2d2996785e12b01521f927088db0aaaa . Im not
in all that stuff, but I dont think that anyone faced this problem
Re: Im desperate
So if the speed changes while you're in Memtest86, then you know it is
not a Windows software problem.
I suspect now, that it is a hardware problem. Something in the synthesis
chain is drifting after a period of time.
I think the clock synthesis on your board, is inside the chipset itself.
There isn't a separate clockgen chip. I don't know whether the clock
synthesis would be in the Southbridge or Northbridge. Those are the
two chips underneath the two heatsinks. (Feel the heatsink, at the moment
the frequency is wrong, using your finger. If you burn yourself on the
heatsink, then you've discovered the problem. The heatsinks should be
able to keep the Northbridge and Southbridge cool enough, so it doesn't
burn you. If the heatsinks are hot, a rail voltage feeding the chips
could be out of spec.)
If you look at your motherboard, near the two red SATA connectors are two
metal cans without plastic sleeves on them. One is a metal cylinder, with
two legs on one end. A wire is fastened around the body, to hold it in place.
That one is the 32768 Hertz crystal used by the real time clock.
To test that one, enter your BIOS, and look at the BIOS page that shows the
clock. Using a wrist watch with a second hand, compare clock time between
the watch and the display in the BIOS. Allow enough time to pass, to observe
whether your wrist watch time runs at the same rate as the time displayed in
the BIOS. That will tell you whether the 32768Hz quartz crystal is OK.
(Write down the time on both time pieces, wait 20 minutes, then check
the time on each of them again. Do both have the same number of elapsed
That leaves the other metal can. It is like a metal hat, a bit wider
at the base than at the top. The two legs on that one, are hidden underneath.
If might have a frequency like 14.318MHz or some other weird value like that,
printed on top. If the quartz crystal inside the can were to malfunction, or
a cap near that thing was broken or defective, that could throw off the
To test that one, you'd boot into Windows, start your copy of CPUZ, and
wait until the frequency is incorrect. Take your finger, push down *gently*
on the lid of the metal hat. Rub your finger over the adjacent components.
(I can't tell in the picture, what tiny chip caps might be part of the
circuit.) Then, observe in CPUZ, whether the frequency shifts at all.
Other than that, I'd have to change the motherboard. I don't see much else you
can poke at on there.
I think an oscillator is malfunctioning - either the reference it uses
(the metal cans) is the problem, or something is getting so hot as to
cause the problem.
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