Upgrading Emachines T1742 from 1.7 Celeron to 2.8Ghz P4

By T1742 ยท 4 replies
May 23, 2009
  1. I have been researching this for days. Almost every source that I have come across has said something different and many sources are very old/outdated webpages. Before I go through the trouble/risk and expense of flashing/upgrading my bios I want to find out *definitively* whether or not my motherboard will support my new CPU:

    Pentium 4, 2.80Ghz, 512 L2 Cache, 400 FSB, socket 478, Northwood, SL7EY

    Here are some of the specs for my motherboard:

    Field Value
    Motherboard Properties
    Motherboard ID 31891.EM.0000.D.0208262051
    Motherboard Name TriGem Imperial

    Front Side Bus Properties
    Bus Type Intel GTL+
    Bus Width 64-bit
    Real Clock 100 MHz (QDR)
    Effective Clock 400 MHz
    Bandwidth 3200 MB/s

    Memory Bus Properties
    Bus Type DDR SDRAM
    Bus Width 64-bit
    DRAM:FSB Ratio 4:3
    Real Clock 133 MHz (DDR)
    Effective Clock 267 MHz
    Bandwidth [ TRIAL VERSION ] MB/s

    Chipset Bus Properties
    Bus Type Intel Hub Interface
    Bus Width 8-bit
    Real Clock 67 MHz (QDR)
    Effective Clock 267 MHz
    Bandwidth 267 MB/s

    Field Value
    North Bridge Properties
    North Bridge Intel Brookdale-G i845GL
    Supported FSB Speeds FSB400
    Supported Memory Types PC100 SDRAM, PC133 SDRAM, DDR-200 SDRAM, DDR-266 SDRAM
    Maximum Memory Amount 2 GB
    Revision 01
    Package Type 760 Pin FC-BGA
    Package Size 3.75 cm x 3.75 cm
    Core Voltage 1.5 V
    In-Order Queue Depth 12

    Memory Timings
    CAS Latency (CL) 2.5T
    RAS To CAS Delay (tRCD) 3T
    RAS Precharge (tRP) 2T
    RAS Active Time (tRAS) 6T
    Refresh Period (tREF) 7.8 us
    DRAM Idle Timer 16T

    Error Correction
    ECC Not Supported
    ChipKill ECC Not Supported
    RAID Not Supported
    ECC Scrubbing Not Supported

    Memory Slots
    DRAM Slot #1 1 GB (PC2100 DDR SDRAM)
    DRAM Slot #2 1 GB (PC2100 DDR SDRAM)

    Integrated Graphics Controller
    Graphics Controller Type Intel Extreme Graphics
    Graphics Controller Status Enabled
    Shared Memory Size 1 MB

    Chipset Manufacturer
    Company Name Intel Corporation

    Field Value
    South Bridge Properties
    South Bridge [ TRIAL VERSION ]
    Revision / Stepping 81 / A1
    Package Type 421 Pin BGA
    Package Size 3.1 cm x 3.1 cm
    Core Voltage 1.5 V

    AC'97 Audio Controller
    Audio Controller Type Intel ICH4
    Codec Name Realtek ALC202(A)
    Codec ID 414C4740h
    S/PDIF Output Supported

    Chipset Manufacturer
    Company Name Intel Corporation
  2. Tmagic650

    Tmagic650 TS Ambassador Posts: 17,244   +234

    You are certainly not going to gain muh performance upgrading by doing this. The motherboard is very weak, and it doesn't let you have much control over clocks and bios settings... As long as the FSB matches the original CPU's value, the 2.8GHz Pentium should work ok. Make sure that you max out the total memory too, making sure that you match the specs of the original memory
  3. T1742

    T1742 TS Rookie Topic Starter


    I have already maxed out the board's memory at 2 GB's and it works great. The new 2.8 Ghz processor is 400 Mhz FSB with 512KB level 2 Cache and is socket 478. The old cpu only had a 128 KB Level 2 Cache.

    But I know for a fact that the motherboard can support up to a 400Mhz FSB processor.

    Now I guess I just need to bite the bullet and pay for a bios upgrade from Phoenix so that I can upgrade my 6.00 to whatever the newest one is.
  4. captaincranky

    captaincranky TechSpot Addict Posts: 13,016   +2,540

    The general buzz in that those Tri-Gem boards are pretty much time bombs with respect to capacitor failure.
    They still don't shoot the messenger do they?
  5. Tmagic650

    Tmagic650 TS Ambassador Posts: 17,244   +234

    Yes captaincranky,
    I agree with the "Time Bomb" thing with the Trigems. I'm afraid that the "bomb" will go off soon after T1742 performs the upgrade, and the board will die. The computer may be 5 or 6 years old now
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