General Computers Links

Technical Support

Notebook

Model Price Spec
Lenovo E420s $9288
($6798 Student)
14″ 1366×768, 1.88kg, Core i5-2410M (2.3-2.9G), 4G RAM, 320G 7200RPM, AMD HD6630M 2G (3DM05 12511), Win7 Home Premium 64bit, battery integrated (6h), 3 yrs, USB 2.0, DVD writer integrated
Lenovo V370 $6788
($4748 Student)
13.3″ 1366×768, 1.72kg, Core i3-2330M (2.2G), 4G RAM, 500G 5400RPM, nVIDIA GF410M 1G (3DM05 7578), Win7 Home Premium 64bit, 6-cell, 3 yrs
Lenovo V370 $6498 13.3″ 1366×768, 1.78kg, Core i5-2410M (2.3-2.9G), 4G RAM, 500G 7200RPM, nVIDIA 1G, Win7 Home Premium 64bit, 6-cell, 1 yr
Lenovo V370 $5980 13.3″ 1366×768, 1.78kg, Core i5-2410M (2.3-2.9G), 4G RAM, 750G 5400RPM, HD3000, Win7 Home Premium 64bit, 6-cell, 1 yr
Lenovo X220 $8998
($6348 Student)
12.5″ HD 1366×768 Anti-Glare, 1.5kg, Core i5-2410M (2.3-2.9G), 4G RAM, 320G 7200RPM, HD3000 (3DM05 6431), Win7 Home Premium 64bit, 6-cell, 3 yrs, USB 2.0
Lenovo E220s $8798
($6698 Student)
12.5″ HD 1366×768, 1.46kg, Core i5-2467M (1.6-2.3G), 4G RAM max, 320G 7200RPM, HD3000, Win7 Home Premium 64bit, 8-cell, 3 yrs
HP Elitebook 2560p $9880
($6480 Student)
12.5″ HD 1366×768, 1.75kg, Core i5-2410M (2.3-2.9G), 4G+4G RAM, 500G 7200RPM, HD3000, Win7 Home Premium 64bit, 6-cell, 3 yrs, USB 2.0, DVD writer inside
SONY VAIO SB36 $7980
($5960 Student? SB25)
13.3″ 1366×768 Glossy, 1.72kg, Core i5-2430M (2.4-3.0G), 4G RAM onboard, 500G 5400RPM, AMD HD6470M 512M (3DM05 8031),Win7 Home Premium 64bit, battery inside (4540mAh/6h), 1 yr, USB 2.0+3.0, DVD writer inside, backlit keyboard
Fujitsu SH561 $11,xxx
($6898 Student)
13.3″ 1366×768 Glossy, 1.8kg, Core i5-2410M (2.3-2.9G), 4G RAM, 640G 7200RPM, nVIDIA GT520M 1G (3DM05 9069), Win7 Home Premium 64bit, 6-cell, ? yr, USB 2.0, DVD writer inside
MSI U200 (reference) $3400 (2009-11) 11.6″ 1366×768 Glossy, 1.5kg, Celeron SU2300 (1.2G), 2G+2G RAM, 320G 5400RPM, GMA4500MHD (3DM05 1224), DOS, 6-cell 5h, 1 yr, USB 2.0
Core i5-2500   HD2000 (3DM05 5802)

NetBooks

Model Price Spec
ASUS EeePC 1215B $4088
(國美, 永亨信用卡優惠$3688)
AMD E350 1.6G, 4G DDR3, 500G, 6 cell
12.1″, 1.45kg, USB 3.0 x 1
Win7 HP 64bit
Lenovo S205 (USA) $3580
(2011-06-02 Golden)
AMD E-350 1.6G, 4G DDR3, 500G, 6 cell
11.6″, 1.47kg
Win 7 HP 64bit
Office 2010 Starter Edition (Word + Excel)
SONY VPCYB16KG
(Pink only)
$4480 official AMD E-350 1.6G, 2G DDR3, 320G, 6 cell
11.6″, 1.46kgWin7 HP 32bit
     

Netbook Runtime

CPU Info / runtime Source
AMD E-350 1.6G 2c 4h 06m
min 3h 22m
(Fujitsu PH521:
4h 52m)
e-Zone 2011-06-09
Core i3 380UM 1.33Ghz 4h 06m
min 3h 29m
e-Zone 2011-06-09
Pentium SU2700 1c 6h 21m e-Zone 2011-06-09
i5-2400 3.1-3.4Ghz 4c ($1519) Faster than AMD 50% same clock  
i5-2500 3.3-3.7Ghz 4c ($1649)    
i5-2557M 1.7-2.7Ghz 2c (US$250 / HK$1950) 17w TDP Sandy Bridge ULV  
Celeron 847 1.1Ghz 2c (US$134 / HK$1045.2) 17w TDP Sandy Bridge ULV  
  • Steps to DR restore Windows 2000 Server with build-in tools
    • Backup with NT backup, ERUNT
    • Install Windows 2000 Server with Storage drivers
    • Boot into Windows PE / another IDE harddisk with drivers
    • Restore from BKF (run ntbackup.exe from the C:)
    • * Copy backup data into DVD or copy to a local harddisk, Windows 2000 may not able to detect USB drive in safe mode
    • Restore registry from ERUNT (if has AD, system will unable to normal bootup yet)
    • Re-config the Network Card’s IP address if the NIC is changed
    • Boot into Windows 2000 Server in Safe Mode/Directory Restore Mode, restore the System State from BKF
    • Check Event log for any missing
  • Create a Super Floppy USB Key
    Boot into Linux, and format the USB key with: mkdosfs -I /dev/sda
  • Windows Server 2003 ASR backup without a floppy drive
    Solution: Perform an ASR backup on the computer without the floppy drive. Copy the asr.sif and asrpnp.sif files located in the %systemroot%\repair directory to another computer with a floppy drive, then copy those files onto a floppy disk.
    For Windows 2000, ASR will stop if no floppy present
  • Auto ESR backup at Windows 2000 without a floppy
    Require rdisk.exe from Windows NT 4.0
  • SAVCE Virus Definition
  • Web Trend Map 2007 Version 2.0
  • Mike’s Hardware Roadmap 2006 Q3
  • Microsoft Evaluations download
  • Intel Integrated Chipset comparison
  • Li-Ion battery
    5% discharge rate per month
    keep it cool
    at 0 degree C, 40% charge, 2% capacity lost per year (keep at refrigerator)
    at 25 degree C, 40% charge, 4% capacity lost per year
    at 25 degree C, 100% charge, 20% capacity lost per year
    at 40 degree C, 100% charge, 35% capacity lost per year

Printers

Display

RAM

  • DDR3-1600 CL11 vs DDR3-1333 CL9, real-world 1% difference only in Ivy Bridge CPU
  • Wikipedia: DIMM
  • DDR3 pin-out
    • DDR2 Unbuf (UDIMM): left 64pin, right 56pin (240pin)
      e.g. Kingston KVR800D2N6/2G – 2G, 4G ($860)
    • DDR2 Unbuf ECC (UDIMM ECC): left 64pin, right 56pin (240pin)
      e.g. Samsung M391T6553CZ3-CE6 – 512M
    • DDR2 Registered ECC (RDIMM): left 64pin, right 56pin (240pin)
      e.g. Micron MT18HTF25672(P) – 2G
    • DDR2 Fully Buffered DIMM (FBDIMM): left 68pin, right 52pin (240pin)
      e.g. Kingston KVR800D2D4F5/4G – 4G ($995)
    • DDR3 Unbuf (UDIMM): left 48pin, right 72pin (240pin)
      e.g. Kingston KVR1333D3N9/4G – 4G ($525)
    • DDR3 Unbuf ECC (UDIMM ECC):
      e.g. Kingston KVR1333D3E9S/4G – 4G ($788)
    • DDR3 Registered ECC (RDIMM):
      e.g. Kingston KVR1333D3D4R9S/4G – 4G ($1180)
    • DDR3 Fully Buffered DIMM (FBDIMM) – Not exist
  • EggXpert: Memory Channel & Gang Modes (recommend unganged mode for multi-core multi-task environment)

x86 CPU Detail Specs

Intel CPU

Intel Chipset specs

AMD CPU Specs

ARM CPU

Troubleshooting

  • JavaScript error in IE, could not see YouTube movie
    • 1. Close all IE windows, uninstall Flash Player, then reboot, and reinstall
    • 2. Try to disable most strange plugins like: ICQ, MSN Toolbar, Google Toolbar, Yahoo Toolbar, Skype
    • 3. Use Mozilla Firefox

Power Usage Information

SAP

Mac OS X

Symantec Products

Storage device Information

  • Anandtech: The Intel SSD DC S3700: Intel’s 3rd Generation Controller Analyzed (Enterprise SSD)
    100G-800G size, 1.8PB to 14.6PB write endurance
  • Anandtech: The Intel SSD 330 Review (60G, 120G, 180G)(3 yrs warranty)
    60-180G 9.5mm
    Real-time data compression transfer
    - 263-272M/s random write (60-180G, compressible data)
    - 78-200M/s random write (60-180G, incompressible data)
    - 44-57M/s random read (60-180G)
    - 325-343M/s seq read (60-180G)
    - 354-367M/s seq write (60-180G, compressible data)
    - 80-220M/s seq write (60-180G, incompressible data)
  • Intel SSD 520 series 120-240G 7mm, 60G-480G 9.5mm (5 yrs warranty), faster than SSD 330
  • SSD TRIM command’s effect
    Without this support, SSD could slow down 50% after a long use. Linux 2.6.28/Win7/Win2k8 R2 support this.
  • AMD 780G vs ICH9R I/O performance (2008-03)
    G35’s ICH9R is 25-50% better!
  • Data Transfer Rates compare
    • Seagate Barracuda 7200.12 500G benchmark
      Access: 14.2ms, Max: 133-140M/s, Avg: 107-113M/s
    • WD 6401AALS 640G benchmark (I tested)
      Access: 12.4ms, Max: 123M/s, Avg: 100M/s
    • 7200RPM ATA harddisk (as of 2003-10): 50-55MB/s
    • Compact Flash (CF): 2-3MB/s
    • Multi Media Card (MMC): 200kB/s (2-2.5Mbps)
    • Secure Digital (SD): ~800kB/s (10Mbps)
    • Smart Media (SM): ~180kB/s (2Mbps)
    • Memory Stick (MS): ~200kB/s (2.5Mbps)
    • Disc-on-Chip (DOC): 180kB/s
    • DDS2 8G DAT: 500kB/s
    • DDS3 40G DAT: 3MB/s
    • DAT72 72G DAT: ~3.5MB/s?
    • DLT 40/80G: 6MB/s
    • LTO Ultrium 2 400G: 34MB/s?
    • LTO Ultrium 100/200G: 7.5MB/s
    • USB 1.0: ~1.2MB/s (12Mbps)
    • USB 2.0: ~48MB/s (480Mbps)
    • 1x CD: 150KB/s
    • 8x CD: 1200KB/s
    • 12x CD: 1800KB/s
    • 1x DVD: 1350KB/s
    • 2.4x DVD: 3240KB/s
    • 4x DVD: 5400KB/s
    • 8x DVD: 10800KB/s
  • Capacity compare
    • 1x DVD = 6.7x CD
  • CD, DVD Characteristic
    • DVD-RW / DVD-R:
      • ISO Multi-Session Format overhead: 1M (4488M, add 378M: 379M/4109M, add 91M: 471M/4018M)
      • ISO Multi-Session each session’s overhead: 0M (Nero report the disc is ‘formatted’ with 1 Session only)
      • 4x DVD-RW Write Speed: Start at 4x already
      • 4x DVD-RW Read Speed: Start at ~3.8x, End at 8x? (8x reported by Nero InfoTool)
      • Nero CD-DVD Speed see all the session
    • DVD+RW / DVD+R:
      • ISO Multi-Session Format overhead: 160M
      • ISO Multi-Session each session’s overhead: 0M (Nero report the disc is ‘formatted’ with 1 Session only)
      • ISO/UDF Multi-Session each session’s overhead: 10M
      • 4x DVD+RW Write Speed: Start at 4x already
      • 4x DVD+RW Read Speed: Start at ~3.8x, End at 8x? (8x reported by Nero InfoTool)
      • 8x DVD+R Read Speed: Start at ~4.5x, End at ~13x (90% Full)
      • Nero CD-DVD Speed seems see only the last session
      • After UltraISO optimized ISO/UDF burn: Disc is formatted, no session remain, cannot write multi-session.
        However, if burn the optimized ISO in Nero, can keep the DVD session open.
  • Interface bandwidth compare
    • PCI – raw: 133MB, effective: 100MB (75%)
    • Ethernet – raw: 100Mbps/12.5MB, effective: 10.5MB (84%)
    • 802.11g WirelessLAN – raw: 54Mbps, effective: 27Mbps (50%)
    • SATA1 – raw: 1.5Gbps/188MB, effective: 115MB? (61%?)
    • SATA2 – raw: 3Gbps/375MB, effective: 230MB (61%)
    • SATA3 – raw: 6Gbps/750MB, effective: 460MB? (61%?)
    • USB 1.1 – raw: 12Mbps/1.5MB, effective: 0.8MB? (55%?)
    • USB 2.0 – raw: 480Mbps/60MB, effective: 33MB (55%)
    • USB 3.0 – raw: 5Gbps/625MB, effective: 350/400MB? (55/64%?)
    • Ultra 160 SCSI – raw: 160MB, effective: 120MB (75%)
    • Ultra 320 SCSI – raw: 320MB, effective: 240MB (75%)
  • LCD Screen compare (Diagonal / Vertical length)
    • 17″ 16:10 / 9″
    • 15.4″ 16:10 / 8.1″
    • 14.1″ 16:10 / 7.5″
    • 13.3″ 16:10 / 7″
    • 11.1″ 16:10 / 5.9″
    • 19″ 4:3 / 11.4″
    • 17″ 4:3 / 10.2″
    • 15″ 4:3 / 9″
    • 12″ 4:3 / 7.2″
    • 10.4″ 4:3 / 6.2″
  • Performance compare links (CPU)
  • Performance compare
    • VIA C7-M 1Ghz ~= Celeron-M 500Mhz (raw CPU calculation power)
    • Intel Atom A110 800Mhz ~= Celeron-M 800Mhz
    • Athlon low voltage 15w TDP 1.6G ~= Atom 1.6G 1.6x, total system power usage 1.1x
    • Athlon X2 (Brisbane) 2.7G = C2D 2.0G (E8000), C2D 2.2G (E6000)
    • Athlon X2 7000 (Kuma) 2.7G = C2D 2.4G (E8000)
    • ===============================================
    • Athlon X2 7750 (2.7Ghz) ~= C2D E7xxx same clock 0.9-0.85x
    • Athlon X2 7750 benchmarks
    • Athlon 64 X2 3800+ (2Ghz) ~= C2D 1.6Ghz
    • Athlon 64 X2 5000+ (2.6Ghz) ~= C2D 2.1Ghz
    • ===============================================
    • Socket 478 Celeron 2.0Ghz 128kB 400FSB ~= Pentium 4 1.6Ghz 512kB 800FSB (75-80% of recent Pentium 4 in general office application)
    • Sampron 3100+ (1.8Ghz) ~= Pentium 4 2.3-2.6Ghz
    • K6-2 400Mhz ~= P3 155Mhz EB (Video Encoding)
    • K6-2 400Mhz ~= P3 195Mhz EB (WinRAR)
    • K6-2 400Mhz ~= P3 148Mhz EB (MP3 Encoding)
    • P3 1000Mhz EB ~= P4 750Mhz GE Prescott (DivX Encoding)
    • P3 1000Mhz EB ~= P4 1560Mhz GE Prescott (WinRAR Compress)
    • P3 1000Mhz EB ~= P4 1460Mhz GE Prescott (MP3 Encoding, Office Application)
      P3 1Ghz = 50% of P4 2.8G
    • P3 1000Mhz EB ~= P4 1050Mhz GE Prescott (OpenGL)
    • P3 1000Mhz EB ~= P4 1110Mhz GE Prescott (DirectX 9)
    • P3 1000Mhz EB ~= P4 1170Mhz GE Prescott (DirectX 8)
    • P3 1000Mhz EB ~= Celeron 1250Mhz Northwood (DivX Encoding)
    • P3 1000Mhz EB ~= Celeron D 1800Mhz Prescott (WinRAR Compress)
    • P3 1000Mhz EB ~= Celeron 1440Mhz Northwood (MP3 Encoding)
    • Athlon XP 1800+ (1.433Ghz) ~= 150% of P3 1Ghz (Office Application), P3 & Athlon XP is clock to clock?
    • Athlon 64 X2 3800+ (2Ghz) ~= 2 x P4 2.8Ghz Prescott (estimated from WinRAR compression performance) Actual should be ~25-30% better
    • Pentium D 820 (2.8Ghz) ~= 2 x P4 2.6Ghz Prescott (estimated from WinRAR compression performance)
    • Core 2 Duo E6600 (2.4Ghz) ~= Pentium D 960 (3.6Ghz) x 1.32 (from 3DS Max 8.0)
      Core 2 Duo 4M 1.8Ghz ~= Pentium D 9xx 3.6Ghz
    • Core 2 Duo E6600 (2.4Ghz) ~= Pentium D 960 (3.6Ghz) x 1.33 (from WinRAR 3.6)
      Core 2 Duo 4M 1.8Ghz ~= Pentium D 9xx 3.6Ghz
    • Core 2 Duo E6600 (2.4Ghz) ~= Pentium D 960 (3.6Ghz) x 1.33 (from WinRAR + Photoshop)
      Core 2 Duo 4M 1.8Ghz ~= Pentium D 9xx 3.6Ghz
    • Core 2 Duo E6600 (2.4Ghz) ~= Athlon 64 X2 4800+ (2.4Ghz 1Mx2) x 1.19 (from 3DS Max 8.0)
      Core 2 Duo 4M 2.0Ghz ~= Athlon 64 X2 1Mx2 2.4Ghz
    • Core 2 Duo E6600 (2.4Ghz) ~= Athlon 64 X2 4800+ (2.4Ghz 1Mx2) x 1.34 (from WinRAR + Photoshop)
      Core 2 Duo 4M 1.8Ghz ~= Athlon 64 X2 1Mx2 2.4Ghz
    • Core 2 Extreme X6800 (2.93Ghz) ~= Pentium D 960 (3.6Ghz) x 1.625 (from 3DS Max 8.0)
      Core 2 Extreme 1.8Ghz 4M ~= Pentium D 9xx 3.6Ghz
    • Core 2 Extreme X6800 (2.93Ghz) ~= Pentium D 960 (3.6Ghz) x 1.47 (from WinRAR 3.6)
      Core 2 Extreme 2Ghz 4M ~= Pentium D 9xx 3.6Ghz
    • Core 2 Extreme X6800 (2.93Ghz) ~= Pentium D 960 (3.6Ghz) x 1.58 (from WinRAR + Photoshop)
      Core 2 Extreme 1.85Ghz 4M ~= Pentium D 9xx 3.6Ghz
    • Celeron D 2.8Ghz ~= Pentium 4 2.8GE x 0.866 (Quake 3 OpenGL)
    • Celeron D 2.8Ghz ~= Pentium 4 2.8GE x 0.84 (FarCry DirectX 9)
    • Celeron D 2.8Ghz ~= Pentium 4 2.8GE x 0.95 (DivX 5.2 Encoding)
    • Celeron D 2.8Ghz ~= Pentium 4 2.8GE x 0.936 (3D Studio MAX 6.0 Rendering)
    • Celeron D 2.8Ghz ~= Pentium 4 2.8GE x 0.823 (Winrar 3.40 File compression)
    • Sempron 3000+ 1.8Ghz 128K ~= Athlon 64 3000+ 1.8Ghz Venice x 0.930 (Quake 3 Team OpenGL)
    • Sempron 3000+ 1.8Ghz 128K ~= Athlon 64 3000+ 1.8Ghz Venice x 0.880 (FarCry DirectX 9)
    • Sempron 3000+ 1.8Ghz 128K ~= Athlon 64 3000+ 1.8Ghz Venice x 0.959 (DivX 6 Pro Encoding)
    • Sempron 3000+ 1.8Ghz 128K ~= Athlon 64 3000+ 1.8Ghz Venice x 1.000 (3D Studio MAX 7.0 Rendering)
    • Sempron 3000+ 1.8Ghz 128K ~= Athlon 64 3000+ 1.8Ghz Venice x 0.875 (Winrar 3.51 File compression)
    • Sempron 3000+ 1.8Ghz 128K ~= Athlon 64 3000+ 1.8Ghz Venice x 0.937 (Multi-tasking 4 threads)
    • Sempron 3100+ 1.8Ghz 256K ~= Athlon 64 3000+ 1.8Ghz Venice x 0.947 (Quake 3 Team OpenGL)
    • Sempron 3100+ 1.8Ghz 256K ~= Athlon 64 3000+ 1.8Ghz Venice x 0.921 (FarCry DirectX 9)
    • Sempron 3100+ 1.8Ghz 256K ~= Athlon 64 3000+ 1.8Ghz Venice x 0.961 (DivX 6 Pro Encoding)
    • Sempron 3100+ 1.8Ghz 256K ~= Athlon 64 3000+ 1.8Ghz Venice x 1.011 (3D Studio MAX 7.0 Rendering)
    • Sempron 3100+ 1.8Ghz 256K ~= Athlon 64 3000+ 1.8Ghz Venice x 0.937 (Winrar 3.51 File compression)
    • Sempron 3100+ 1.8Ghz 256K ~= Athlon 64 3000+ 1.8Ghz Venice x 0.98 (Multi-tasking 4 threads)
    • Pentium 4 630 3.0Ghz 2M HT ~= Athlon 64 3200+ 2.0Ghz 512K Venice x 1.033 (Quake 3 Team OpenGL)
    • Pentium 4 630 3.0Ghz 2M HT ~= Athlon 64 3200+ 2.0Ghz 512K Venice x 0.866 (FarCry DirectX 9)
    • Pentium 4 630 3.0Ghz 2M HT ~= Athlon 64 3200+ 2.0Ghz 512K Venice x 1.212 (DivX 6 Pro Encoding)
    • Pentium 4 630 3.0Ghz 2M HT ~= Athlon 64 3200+ 2.0Ghz 512K Venice x 1.038 (3D Studio MAX 7.0 Rendering)
    • Pentium 4 630 3.0Ghz 2M HT ~= Athlon 64 3200+ 2.0Ghz 512K Venice x 1.072 (Winrar 3.51 File compression)
    • Pentium 4 630 3.0Ghz 2M HT ~= Athlon 64 3200+ 2.0Ghz 512K Venice x 0.980 (Multi-tasking 4 threads) [$1373 vs $1230, 2006-02-26)
    • Atom performance
    • Atom 1.6G ~= P4 1.5G
    • Atom 1.6G ~= P-M 0.74G
  • Performance compare (VGA)
  • Performance compare (base on guaranteed crack of Microsoft Office Word document)
    • Pentium 4 2.4GC – 1296000
    • Athlon XP 1800+ – 1080000 (~= P4 2.0G)
    • Pentium III 1Ghz Socket370 – 816000 (~= P4 1.5G)
    • Pentium III 700Mhz Slot-1 – 560000
  • CD-R materials

SONY CRT Monitors manufacturing time-frame

  • CPD-15SF1: 1994
  • CPD-15SF2: 1995
  • CPD-100SX: 1996
  • CPD-200SF: 1996
  • CPD-200ES: 1997
  • CPD-200GS: 1997
  • CPD-110GS: 1998
  • CPD-210GS: 1998
  • CPD-G200: 1999
  • CPD-E100: 1999 (FD Trinitron?)
  • CPD-E200: 1999/2000

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    Web-based CVS Viewer, produced by horde.org
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    a Database Reporting Tool and EIS, MIS tool (graph generation), like Crystal Reports. Has Windows & Linux version.

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