Archived from groups: alt.comp.periphs.mainboard.asus (
More info?)
On Wed, 14 Jul 2004 04:55:07 -0400, nospam@needed.com (Paul) wrote:
>In article <n359f0ppra3m5mfnr38dffvr5jmdoem3r0@4ax.com>, Bryan Schwerer
><schwerer@bellnospamsouth.net> wrote:
>
>> I just added an Athlon 2200+ Thoroughbred to my system, an A7S333,
>> BIOS 1005.
>>
>> I have PC2100 memory (266), a 400 watt power supply.
>>
>> When booting for the first time, It comes up at 13.5X FSB 100. This
>> boots windows fine. When I try to switch to 13.5X 133, Windows
>> XPtries to boot then crashes and the system restarts. Manually
>> setting the frequency does the same thing.
>>
>> Core voltage shows 1.6. I am getting conflicting info on core
>> voltage. One spec says 1.6 another says 1.65. IIs 0.05 volt enough
>> to mess something up? Any ideas? Not enough power?
>
>1) You have the option of JumperFree operation. The setting of
> JEN also requires the DSW switches to all be in the OFF position.
> That is necessary so some GPIO pins can drive the clockgen. If
> some of the DSW switches are left on, while in JumperFree mode,
> weird four bit values will get sent to the clock gen, which
> might cause the PCI frequency to be out of spec. PCI is good
> from 33MHz (stock) to 37.5MHz (overclock). Values higher than that
> sometimes corrupt an IDE disk. Since you say you've tried jumper
> mode as well, this probably isn't the problem.
>
Yes, I am running in jumper free mode. Sorry, I did not mean I went
out of jumper free. I meant I manually set the multiple and frequency
through the BIOS. I will check those switches.
>2) Are you certain the memory is still being operated within its
> PC2100 (DDR266 rate = 133MHz memory clock) limits ? It almost sounds
> like a memory problem. Before booting into Windows, you should use
> memtest86 from memtest.org, to test the memory. Try the board
> with only one stick at first, and see if it passes memtest.
> Place a single stick in slot 3, furthest from the processor (and
> closest to the memory bus terminators). Once the sticks prove
> they are good, you can reinstall them like you had them. If
> using two sticks, try slot 1 and slot 3 as the best locations.
>
> Have a look at "CPU/Memory Freqneucy Ratio" - 1:1 sounds good
> for running FSB266 and DDR266 memory. The Auto setting would
> presumably do the same thing.
>
> You may eventually need to use a Windows utility to check
> the settings being used by the BIOS. Of course, you cannot
> be crashing, for that to work
A chicken versus egg type
> problem.
I will have to check into this. I was not sure that I could boot to
the command line safemode either. Does the BIOS boot the system at
the low clock rate (13.5X100), then Window XP switch it to the higher
rate (13.5X133 ) as it comes up?
>
>3) I think your processor takes 1.6V, but a bump to 1.65V isn't
> going to hurt it. A little extra voltage makes the processor
> run hotter. Just stay away from whatever is the absolute max.
> (the datasheet talks about Vcc_core_max+0.5V, which would be
> 2.15 volts or so - I have trouble believing it can take that
> much, so research your own max value...)
>
Actually it is rock on 1.6V. I beleive SiSSandra had some indication
that the core voltage was 1.65. I may be confusing too similar terms
here.
>4) For the "not enough power" question, have a look at the
> hardware monitor page in the BIOS. See if the PSU voltages
> are close to the +/- 5% tolerance provided by many ATX PSUs.
> If the voltages are low by 10%, then power could be your
> problem. The reason for the leeway between 5% and 10%, is to
> make room for measurement error by the hardware monitor.
>
>HTH,
> Paul
If I disable JumperFree, would it be worth trying 133/100 mode to see
if that allows windows to boot. That seems like it would indicate
something on the memory side, or would that cause other problems?
Thanks,
Bryan Schwere
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