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1 9th August 14:43
chris tremblay
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Posts: 1
Default Gentoo AMD64 install identifies CPU as 32 bit



I bought a Compaq R3000 laptop. The company I bought it from said that
it was an AthlonXp however I ran CPUZ on it and it says that it is a
Athlon 64. I also installed the 32bit version of Gentoo on it and it
appears that the chipset is NForce-3 150.

Screenshot available at:
http://ca.geocities.com/anne.pft@rogers.com/images/cpuid.bmp

However when I go and run the Gentoo Universal install cd for AMD64. It
gives me the error saying that my computer doesn't support long mode.

Any ideas why CPU-Z says one thing but Gentoo is saying another.
Could it be that the laptop has an AMD64 that has been disabled?
Respond in the newsgroup.
Thanks
Chris
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2 9th August 14:43
geoff king
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Posts: 1
Default Gentoo AMD64 install identifies CPU as 32 bit



Sounds like its a Sempron.

http://en.wikipedia.org/wiki/Sempron

Look at the description for the 'Paris' variant. That fits exactly to what
you describe seeing.

--
printk("Penguin %d is stuck in the bottle.\n", i);
linux-2.0.38/arch/sparc/kernel/smp.c
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3 9th August 14:43
chris tremblay
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Posts: 1
Default Gentoo AMD64 install identifies CPU as 32 bit


ptop has an AMD64 that has been disabled?

Thanks for the reply and the link

Thing is the CPU software recognized it as a ClawHammer.
According to the link in the link you provided all but one of the
Semprons are Socket A and the one that is on the Socket 754 is a faster
model with more L2 Cache.

Is there any software in Gentoo that would tell me more than the one I
ran in Windows?
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4 9th August 14:43
geoff king
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Posts: 1
Default Gentoo AMD64 install identifies CPU as 32 bit


The mystery deepens...

cat /proc/cpuinfo

--
printk("Entering UltraSMPenguin Mode...\n");
linux-2.2.16/arch/sparc64/kernel/smp.c
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5 9th August 14:43
johan lindquist
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Posts: 1
Default Gentoo AMD64 install identifies CPU as 32 bit


So anyway, it was like, 18:39 CET Feb 12 2005, you know? Oh, and, yeah,
Chris Tremblay was all like, "Dude,


You can cat /proc/cpuinfo, but I dunno if it'll tell you anything
more.

Here's what an amd64 should look like:

-----8<-----
processor : 0
vendor_id : AuthenticAMD
cpu family : 15
model : 4
model name : AMD Athlon(tm) 64 Processor 3200+
stepping : 8
cpu MHz : 2002.655
cache size : 1024 KB
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext lm
3dnowext 3dnow
bogomips : 3932.16
TLB size : 1088 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management: ts fid vid ttp
----->8-----

Also, you might glean something from browsing the contents of

<http://www.deater.net/weave/vmwprod/linux_logo/test_proc-14March2004.tar.gz>

(or 'emerge cpuinfo-collection')

Seems abit outdated tho.

--
Time flies like an arrow, fruit flies like a banana. Perth ---> *
18:43:29 up 111 days, 7:10, 9 users, load average: 0.00, 0.00, 0.00
Linux 2.6.9 x86_64 GNU/Linux Registered Linux user #261729
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6 9th August 14:44
chris tremblay
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Posts: 1
Default Gentoo AMD64 install identifies CPU as 32 bit


I would think it was an XP processor but are there any XP processors
that run on an NForce 3 motherboard?

Also what is the difference between a Stepping 8 (yours) and Stepping 10
(mine) and where would you find this out on the net?

processor : 0
vendor_id : AuthenticAMD
cpu family : 15
model : 4
model name : AMD Athlon(tm) XP Processor 2800+
stepping : 10
cpu MHz : 797.878
cache size : 128 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush mmx fxsr sse sse2 pni syscall nx mmxext 3dnowext 3dnow
bogomips : 1576.96
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7 9th August 14:44
chris tremblay
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Posts: 1
Default Gentoo AMD64 install identifies CPU as 32 bit


According to this website:
http://www.paradicesoftware.com/specs/cpuid/index.htm
It is Athlon 64, that is what the CPU Family 15 = Extended, Model 4
(Athlon 4). If it was a Model 8 it would be an Opteron

I also have an Athlon XP Barton which is Family 6, Model 10 which
coincides with the table.

The thing it doesn't mention on the table is the XP-M processors. I
wonder what their settings are>?
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8 9th August 14:44
johan lindquist
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Posts: 1
Default Gentoo AMD64 install identifies CPU as 32 bit


So anyway, it was like, 19:02 CET Feb 12 2005, you know? Oh, and, yeah,
Chris Tremblay was all like, "Dude,


The blurb on the wiki said it's socket 754 compatible, didn't it? I'm
guessing that would mean you can stick one in any socket 754 chipset.
I'm sure someone who actually knows this stuff will tell us tho.


Well.. I.. er.. google?

--
Time flies like an arrow, fruit flies like a banana. Perth ---> *
19:11:13 up 111 days, 7:37, 9 users, load average: 0.00, 0.03, 0.05
Linux 2.6.9 x86_64 GNU/Linux Registered Linux user #261729
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9 9th August 14:44
chris tremblay
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Posts: 1
Default Gentoo AMD64 install identifies CPU as 32 bit


I think I figured it out.

There seemed to be two strange things.
1. the CPU speed seemed to be really low
2. the L2 cache was also low.

Did some looking on the weeb and I think this may be the Athlon XP-M. I
went to Compaq's web site and they had a page about the R3000 mhz not
matching up to the reported cpu. This is due to PowerNow where it will
ramp up and down the cpu speed depending on demand. (it seemed to
compile faster than a 700Mhz machine should have)
Also on the same page were specs for the Athlon XP-M 2800+ cpu and it
had the same specs with regards to the cache.

If I took a guess, I think they used the Athlon 64 as a basis for the
Mobile XP and this was an early model.

Just a guess.
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10 9th August 14:45
chris tremblay
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Posts: 1
Default Gentoo AMD64 install identifies CPU as 32 bit


Found the following web page:
http://fab51.com/cpu/guide/opn-64-e.html

Essentially the cpu is an Athlon XP-M processor. It is 754 pin and will
work on the NForce 3 chipset. The R3000 laptop can come with a Athlon 64
or I guess the XP-M which would explains it.

Now I wonder if the cpu can be replaced with a AMD 64.....

Thanks again for the help!
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