Skip to main content

linux - lshw tells me my processor is a 64 bits but my motherboard has a 32 bits width


Recently I noticed lshw tells me a strange thing. Here is the first part of my lshw output:


bpetit-1025c
description: Notebook
product: 1025C (1025C)
vendor: ASUSTeK COMPUTER INC.
version: x.x
serial: C3OAAS000774
width: 32 bits
capabilities: smbios-2.7 dmi-2.7 smp-1.4 smp
configuration: boot=normal chassis=notebook cpus=2 family=Eee PC...


 *-core
       description: Motherboard
       product: 1025C
       vendor: ASUSTeK COMPUTER INC.
       physical id: 0
       version: x.xx
       serial: EeePC-0123456789
       slot: To be filled by O.E.M.
     *-firmware
          description: BIOS
          vendor: American Megatrends Inc.
          physical id: 0
          version: 1025C.0701
          date: 01/06/2012
          size: 64KiB
          capacity: 1984KiB
          capabilities: pci upgrade shadowing cdboot bootselect socketedrom edd...
     *-cpu:0
          description: CPU
          product: Intel(R) Atom(TM) CPU N2800   @ 1.86GHz
          vendor: Intel Corp.
          physical id: 4
          bus info: cpu@0
          version: 6.6.1
          serial: 0003-0661-0000-0000-0000-0000
          slot: CPU 1
          size: 798MHz
          capacity: 1865MHz
          width: 64 bits
          clock: 533MHz
          capabilities: x86-64 boot fpu fpu_exception wp vme de pse tsc ...
          configuration: cores=2 enabledcores=1 id=2 threads=2
        *-cache:0
             description: L1 cache
             physical id: 5
             slot: L1-Cache
             size: 24KiB
             capacity: 24KiB
             capabilities: internal write-back unified
        *-cache:1
             description: L2 cache
             physical id: 6
             slot: L2-Cache
             size: 512KiB
             capacity: 512KiB
             capabilities: internal varies unified
        *-logicalcpu:0
             description: Logical CPU
             physical id: 2.1
             width: 64 bits
             capabilities: logical
        *-logicalcpu:1
             description: Logical CPU
             physical id: 2.2
             width: 64 bits
             capabilities: logical
        *-logicalcpu:2
             description: Logical CPU
             physical id: 2.3
             width: 64 bits
             capabilities: logical
        *-logicalcpu:3
             description: Logical CPU
             physical id: 2.4
             width: 64 bits
             capabilities: logical
     *-memory
          description: System Memory
          physical id: 13
          slot: System board or motherboard
          size: 2GiB
        *-bank:0
             description: SODIMM [empty]
             product: [Empty]
             vendor: [Empty]
             physical id: 0
             serial: [Empty]
             slot: DIMM0
        *-bank:1
             description: SODIMM DDR3 Synchronous 1066 MHz (0.9 ns)
             product: SSZ3128M8-EAEEF
             vendor: Xicor
             physical id: 1
             serial: 00000004
             slot: DIMM1
             size: 2GiB
             width: 64 bits
             clock: 1066MHz (0.9ns)
     *-cpu:1
          physical id: 1
          bus info: cpu@1
          version: 6.6.1
          serial: 0003-0661-0000-0000-0000-0000
          size: 798MHz
          capacity: 798MHz
          capabilities: ht cpufreq
          configuration: id=2
        *-logicalcpu:0
             description: Logical CPU
             physical id: 2.1
             capabilities: logical
        *-logicalcpu:1
             description: Logical CPU
             physical id: 2.2
             capabilities: logical
        *-logicalcpu:2
             description: Logical CPU
             physical id: 2.3
             capabilities: logical
        *-logicalcpu:3
             description: Logical CPU
             physical id: 2.4
             capabilities: logical

So here I see my processor is effectively a 64 bits one. However, I'm wondering how my motherboard can have a "32 bits width". I've browsed the web to find an answer, without success. I imagine it's just a technical fact that I don't know about.


Thanks.



Answer



I know there haven't really been 32/64 bit motherboards in years, but perhaps that is not true in notebooks. It would somewhat make sense since Atoms were 32-bit only for a long time, and computers with atom processors are rarely sold with more than 2 gb of ram, or even upgradeable to more than 4. Perhaps they were skimping on cost by only having 32-bit support.


For what it's worth, my desktop motherboard reports 64-bit width with a 64-bit processor and 64-bit OS.


Comments

Post a Comment

Popular Posts

Use Google instead of Bing with Windows 10 search

I want to use Google Chrome and Google search instead of Bing when I search in Windows 10. Google Chrome is launched when I click on web, but it's Bing search. (My default search engine on Google and Edge is http://www.google.com ) I haven't found how to configure that. Someone can help me ? Answer There is no way to change the default in Cortana itself but you can redirect it in Chrome. You said that it opens the results in the Chrome browser but it used Bing search right? There's a Chrome extension now that will redirect Bing to Google, DuckDuckGo, or Yahoo , whichever you prefer. More information on that in the second link.
Post a Comment
Read more

linux - Using an index to make grep faster?

I find myself grepping the same codebase over and over. While it works great, each command takes about 10 seconds, so I am thinking about ways to make it faster. So can grep use some sort of index? I understand an index probably won't help for complicated regexps, but I use mostly very simple patters. Does an indexer exist for this case? EDIT: I know about ctags and the like, but I would like to do full-text search. Answer what about cscope , does this match your shoes? Allows searching code for: all references to a symbol global definitions functions called by a function functions calling a function text string regular expression pattern a file files including a file
Post a Comment
Read more

How do I transmit a single hexadecimal value serial data in PuTTY using an Alt code?

I am trying to sent a specific hexadecimal value across a serial COM port using PuTTY. Specifically, I want to send the hex codes 9C, B6, FC, and 8B. I have looked up the Alt codes for these and they are 156, 182, 252, and 139 respectively. However, whenever I input the Alt codes, a preceding hex value of C2 is sent before 9C, B6, and 8B so the values that are sent are C2 9C, C2 B6, and C2 8B. The value for FC is changed to C3 FC. Why are these values being placed before the hex value and why is FC being changed altogether? To me, it seems like there is a problem internally converting the Alt code to hex. Is there a way to directly input hex values without using Alt codes in PuTTY? Answer What you're seeing is just ordinary text character set conversion. As far as PuTTY is concerned, you are typing (and reading) text , not raw binary data, therefore it has to convert the text to bytes in whatever configured character set before sending it over the wire. In other words, when y...
Post a Comment
Read more

linux - CentOs 7.1 - Install Tomcat 8

I am using this tutorial as a setup reference to getting a Tomcat 8 running on CentOs 7.1 , but after typing: [root@localhost tomcat]# sudo systemctl start tomcat I get the error: Job for tomcat.service failed. See 'systemctl status tomcat.service' and 'journalctl -xn' for details. systemctl status tomcat.service prints the following: [root@localhost tomcat]# systemctl status tomcat.service tomcat.service - Apache Tomcat Web Application Container Loaded: loaded (/etc/systemd/system/tomcat.service; disabled) Active: failed (Result: exit-code) since Wed 2015-11-25 16:54:33 CET; 1min 19s ago Process: 45873 ExecStart=/opt/tomcat/bin/startup.sh (code=exited, status=203/EXEC) Nov 25 16:54:33 localhost.localdomain systemd[1]: Starting Apache Tomcat Web Application Container... Nov 25 16:54:33 localhost.localdomain systemd[1]: tomcat.service: control process exited, code=exited status=203 Nov 25 16:54:33 localhost.localdomain systemd[1]: Failed to start Apache Tomcat Web App...
Post a Comment
Read more