<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">Barry Scott wrote:<br>On another 965Q that exhibits the problem, we get:<br><br># cat /proc/mtrr<br>reg00: base=0x00000000 (   0MB), size= 512MB: write-back, count=1<br>
reg01: base=0x1f000000 ( 496MB), size=  16MB: uncachable, count=1<br>reg02: base=0xe0000000 (3584MB), size= 256MB: write-combining, count=1<br><br>>><i> That looks suspiciously like the "fan controller" related BIOS bug<br>
</i>>><i> that turned up not long ago. Can't remember if it made it into<br></i>>><i> bugzilla, but it was fixed by a bios upgrade ...<br></i>>><i><br></i>>><i> Suggest looking in BIOS options for something to do with a fan and<br>
</i>>><i> turning it off.<br></i>>><i><br></i>Assuming you're thinking of <br><a href="http://lists.freedesktop.org/archives/xorg/2007-June/025105.html,">http://lists.freedesktop.org/archives/xorg/2007-June/025105.html,</a> we <br>
don't have the necessary options in the BIOS, but some of our boxes that <br>demonstrate poor performance don't have the same block of bad-looking MTRRs.<br>-- <br>Any more ideas?<br><br>Simon Farnsworth<br></blockquote>

<div> </div>
<div>Hello people,</div>
<div> </div>
<div>I am dropping myself in as I have the same issue on a mobile 965 (and also get error message about the fan if I install acpid).</div>
<div> </div>
<div> </div>
<div>My mtrr looks normal to me but I may be wrong:</div>
<div>cat /proc/mtrr      <span class="f7 b0">                                                                   <br></span><span class="f15 b0">reg00: base=0x00000000 (   0MB), size=1024MB: write-back, count=1</span><span class="f7 b0">                                   <br>
</span><span class="f15 b0">reg01: base=0x3f700000 (1015MB), size=   1MB: uncachable, count=1</span><span class="f7 b0">                                   <br></span><span class="f15 b0">reg02: base=0x3f800000 (1016MB), size=   8MB: uncachable, count=1</span><span class="f7 b0">                                   <br>
</span><span class="f15 b0">reg03: base=0xd0000000 (3328MB), size= 256MB: write-combining, count=1</span><span class="f7 b0"> </span></div>
<div><span class="f7 b0"></span> </div>
<div><span class="f7 b0">I'll try your ideas too ;)</span></div>
<div><span class="f7 b0"></span> </div>
<div><span class="f7 b0">Thanks,</span></div>
<div><span class="f7 b0"></span> </div>
<div><span class="f7 b0">John</span></div>