Raising FSB to 200 Mhz -> WinXp Blue Screen

Discussion in 'Processors, Motherboards & Memory' started by charlestek, Jun 3, 2006.

  1. charlestek

    charlestek Newbie

    I've got an Epox EP-8RDA3+ Pro motherboard (Nforce 2 Ultra) running WinXp Pro.
    Previously I was using two 512MB ddr 333 memory sticks with my FSB running at 166Mhz,
    and the computer was working fine.
    I recently purchased a pair of 2GB Corsair XMS matched PC3200 sticks.

    When I raised the FSB to 200Mhz in the bios, my WinXP system became unstable and I got blue screens. I was using conservative auto memory settings. I thought the motherboard was designed to operate at this speed properly, considering I now have memory that will handle that speed.

    I'm using the latest bios. My only other thoughts are maybe that my PCI bus or AGP video card can't handle this.

    Any ideas would be appreciated.
  2. Avatar


  3. Shorter

    Shorter Newbie

    The main possibility here is probably that the processor is multiplier-locked. If the multiplier is locked at 11.5x (for instance) bumping up the FSB from 166 to 200 MHz will mean an increase of 33 MHz x 11.5 = 379.5 Mhz. I'm not sure if you can put an extra 380MHz on it w/o good cooling. Also you're right, the PCI bus clock is a fraction of the system bus clock so you have to think about that as well.
  4. Chai

    Chai Administrator

    By raising your FSB to 200MHz, did you reduce your multiplier? Because if you don't you are seriously overclocking your CPU. If your CPU is a 1833MHz, by increasing to 200MHz FSB, it's going to run at 2200MHz, which is a lot!\

    Edit: LOL, someone's faster than me. :D
  5. Echolac

    Echolac Newbie

    Is there any setting in your BIOS whereby you can set the pic/agp clock speed??
    if no then i am afraid your mobo does not have pci/agp speed lock...once you raise from 166 to 200 the pci/agp clock speed will be raised too..i suspect your HDD could not handle the increased speed which cause the instability..anyway those are my opinions;) ;) ;)
  6. Chai

    Chai Administrator

    Doesn't NF2 have AGP lock?
  7. charlestek

    charlestek Newbie

    Am using Barton Athlon Xp 2600+


    I forgot to mention that I'm using a Barton Athlon Xp 2600.

    Shouldn't be any reason that it can't handle the 200 FSB I think?
  8. Shorter

    Shorter Newbie

    It's too much to ask of standard cooling. Maybe if there was a serious cooling system on it, maybe. But on standard, putting an extra 300+ MHz on it would be a miracle.
  9. charlestek

    charlestek Newbie

    What has cooling have to do with it?

    I never said I have a cpu temperature problem.
    I'm using a huge Zalman CuAl cooler anyway.

    I'm not overclocking a cpu that was meant to be able to run with a 200 mhz FSB.
  10. Chai

    Chai Administrator

    Barton 2600+? I think it's multiplier locked. No point overclocking unless you can get it stable.
  11. Shorter

    Shorter Newbie

    Um.. the 2600+ runs on a double-clocked 166 MHz system bus. The OPN will state a 333 MHz bus, but in actual fact it's a dual-clocked 166 MHz bus. Because of this the correct system bus setting should be 166 MHz.


    This is from the AMD FAQ :

  12. charlestek

    charlestek Newbie

    Cpu Info Report

    Here's my Info:

    CPU-Z ReportCPU-Z Report

    CPU-Z version 1.34.1.

    Number of CPUs1

    NameAMD Athlon XP
    Code NameBarton
    SpecificationAMD Athlon(tm) XP 2600+
    Family / Model / Stepping6 A 0
    Extended Family / Model7 A
    PackageSocket A
    Technology0.13 um
    Supported Instructions SetsMMX, Extended MMX, 3DNow!, Extended
    3DNow!, SSE
    CPU Clock Speed1916.7 MHz
    Clock multiplierx 11.5
    Front Side Bus Frequency166.7 MHz
    Bus Speed333.3 MHz
    L1 Data Cache64 KBytes, 2-way set associative, 64 Bytes line size
    L1 Instruction Cache64 KBytes, 2-way set associative, 64 Bytes line
    L2 Cache512 KBytes, 16-way set associative, 64 Bytes line size
    L2 Speed1916.7 MHz (Full)
    L2 LocationOn Chip
    L2 Data Prefetch Logicyes
    L2 Bus Width64 bits

    Mainboard and chipset
    Motherboard manufacturer
    Motherboard modelnVidia-nForce,
    BIOS vendorPhoenix Technologies, LTD
    BIOS revision6.00 PG
    BIOS release date02/08/2006
    ChipsetnVidia nForce2 Ultra 400 rev. C1
    SouthbridgenVidia nForce2 MCP rev. A3
    Sensor chipWinbond W83627THF

    Graphic InterfaceAGP
    AGP Statusenabled, rev. 3.0
    AGP Data Transfer Rate8x
    AGP Max Rate8x
    AGP Side Band Addressingsupported, enabled

    DRAM Size2048 MBytes
    DRAM Frequency166.7 MHz
    CAS# Latency3.0 clocks
    RAS# to CAS#3 clocks
    RAS# Precharge3 clocks
    Cycle Time (TRAS)7 clocks
    # of memory modules2
    Module 0Corsair DDR PC3200 - 1024 MBytes
    Module 1Corsair DDR PC3200 - 1024 MBytes

    Windows versionMicrosoft Windows XP Professional Service Pack 2
    (Build 2600)
    DirectX version9.0c

    SiSoftware Sandra

    Model : AMD Athlon(tm) XP 2600+
    Speed : 1.92GHz
    Model Number : 2600 (estimated)
    Performance Rating : PR2780 (estimated)
    Type : Standard
    Package : Socket A PGA
    Multiplier : 23/2x
    Generation : G7
    Name : Duron M10 & Athlon MP/XP (Barton/Thorton) 130nm 1.8GHz+ 1.6-1.65V
    Revision/Stepping : A / 0 (0)
    Stepping Mask : A2
    Core Voltage Rating : 1.650V
    Maximum Physical / Virtual Addressing : 34-bit / 32-bit
    Native Page Size : 4kB

    Co-Processor (FPU)
    Type : Built-in
    Revision/Stepping : A / 0 (0)

    Processor Cache(s)
    Internal Data Cache : 64kB Synchronous Write-Back (2-way, 64 byte line size)
    Internal Instruction Cache : 64kB Synchronous Write-Back (2-way, 64 byte line size)
    L2 On-board Cache : 512kB ECC Synchronous Write-Back (16-way, 64 byte line size)
    L2 Cache Multiplier : 1/1x (1917MHz)

    Socket/Slot : Socket A
    Upgrade Interface : ZIF Socket
    Supported Speed(s) : 1.92GHz+

    Environment Monitor 1
    Model : Winbond W83627(T)HF ISA
    Version : 9.00
    Mainboard Specific Support : No

    Power Rating(s)
    CPU Core Power : 66W (estimated)
    CPU Cooling System Thermal Resistance : 0.03°C/W (estimated)

    CPU Temperature : 30.0°C / 86.0°F
    Auto Fan Speed Control : No
    CPU Fan Speed : 2377rpm
    CPU Voltage : 1.68V

    SiSoftware Sandra

    Manufacturer : Pronix (Epox)
    MP Support : No
    Model : nVidia-nForce
    System BIOS : 02/08/2006-nVidia-nForce-6A61BPANC-00
    Chipset : nVidia nForce2 ICP

    System Memory Controller
    Location : Mainboard
    Error Correction Capability : None
    Number of Memory Slots : 3
    Maximum Installable Memory : 1GB
    Bank0/1 - A0 : DIMM 1024MB
    Bank2/3 - A1 : DIMM 1024MB
    Bank4/5 - A2 : Empty

    Chipset 1
    Model : Nvidia Corp nForce2 AGP Controller
    Bus(es) : ISA AGP PCI USB FireWire/1394
    Front Side Bus Speed : 2x 167MHz (334MHz data rate)
    Maximum FSB Speed / Max Memory Speed : 2x 200MHz / 2x 200MHz
    Width : 64-bit
    IO Queue Depth : 8 request(s)

    Chipset 1 Hub Interface
    Type : HyperTransport
    Version : 0.10
    In/Out Width : 8-bit / 8-bit
    Speed : 2x 200MHz (400MHz data rate)

    Logical/Chipset 1 Memory Banks
    Bank 0 : 1024MB DDR-SDRAM 3.0-3-3-7CL 2CMD
    Bank 2 : 1024MB DDR-SDRAM 3.0-3-3-7CL 2CMD
    Channels : 2
    Speed : 2x 167MHz (334MHz data rate)
    Multiplier : 5/5x
    Width : 64-bit
    Power Save Mode : No
    Fixed Hole Present : No

    Environment Monitor 1
    Model : Winbond W83627(T)HF ISA
    Version : 9.00
    Mainboard Specific Support : No

    Temperature Sensor(s)
    Board Temperature : 28.0°C / 82.4°F
    CPU Temperature : 30.0°C / 86.0°F
    Power / Aux Temperature : 9.0°C / 48.2°F

    Cooling Device(s)
    Auto Fan Speed Control : No
    CPU Fan Speed : 2377rpm

    Voltage Sensor(s)
    CPU Voltage : 1.68V
    Aux Voltage : 1.54V
    +3.3V Voltage : 1.62V
    +5V Voltage : 4.78V
    +12V Voltage : 10.52V
    -12V Voltage : -8.99V
    -5V Voltage : -1.23V
    Standby Voltage : 4.58V
    Battery Voltage : 2.96V

    AGP Bus(es) on Hub 1
    Version : 3.00
    Speed : 8x
    Fast-Writes Enabled : Yes
    Isochronous Mode Enabled : No
    Addressing Enabled : 32-bit
    Aperture Size : 128MB

    PCI Bus(es) on Hub 1
    Version : 2.20
    Number of Bridges : 2
    PCI Bus 0 : PCI (1/1x PCIClk)
    PCI Bus 1 : PCI (1/1x PCIClk)

    LPC Hub Controller 1
    Model : Epox Computer Co Ltd ??? (0080)

    USB Controller 1
    Model : Epox Computer Co Ltd ??? (0087)
    Version : 1.00
    Interface : OHCI
    Channels : 4
    Supported Speed(s) : Low (1.5Mbps) Full (12Mbps)
    Legacy Emulation Enabled : No

    USB Controller 2
    Model : Epox Computer Co Ltd ??? (0087)
    Version : 1.00
    Interface : OHCI
    Channels : 4
    Supported Speed(s) : Low (1.5Mbps) Full (12Mbps)
    Legacy Emulation Enabled : No

    USB Controller 3
    Model : Epox Computer Co Ltd ??? (0088)
    Version : 2.00
    Specification : 1.00
    Interface : EHCI
    Channels : 8
    Companion Controllers : 2
    Supported Speed(s) : Low (1.5Mbps) Full (12Mbps) High (480Mbps)
    Addressing Support : 32-bit
    Legacy Emulation Enabled : No

    FireWire/1394 Controller 1
    Model : Epox Computer Co Ltd VT6306 VIA Fire II IEEE-1394 OHCI Link Layer Controller
    Version : 1.00
    Interface : OHCI
    Enhanced Support : No
    Channels : 64
    Speed : 400MHz

    Expansion Slot(s)
    PCI0 (1h) : PCI 32-bit +5V PME Full-Length Available (Epox Computer Co Ltd ??? (0080))
    PCI1 (2h) : PCI 32-bit +5V PME Full-Length Used (Epox Computer Co Ltd ??? (0087))
    PCI2 (3h) : PCI 32-bit +5V PME Full-Length Available
    PCI3 (4h) : PCI 32-bit +5V PME Full-Length Used (Epox Computer Co Ltd Network Bus Enumerator)
    PCI4 (5h) : PCI 32-bit +5V PME Full-Length Available
    AGP (F0h) : AGP 32-bit +5V Full-Length Used

    Port Connector
    PRIMARY IDE : None - ATA / None
    SECONDARY IDE : None - ATA / None
    FDD : 8251 FIFO - Floppy Disk / None
    COM1 : Serial Port 16450 - 9 Pin Dual Inline / DB-9 pin male
    COM2 : Serial Port 16450 - 9 Pin Dual Inline / DB-9 pin male
    LPT1 : Parallel Port ECP/EPP - DB-25 pin female / DB-25 pin female
    Keyboard : Keyboard - PS/2 / PS/2
    PS/2 Mouse : Mouse - PS/2 / PS/2
    USB0 : USB - None / None

    Performance Tips
    Notice 224 : SMBIOS/DMI information may be inaccurate.
    Tip 2511 : Some memory slots are free so the memory can be easily upgraded.
    Tip 2536 : System has no SMBus/i2c/BMB bus support.
    Tip 2 : Double-click tip or press Enter while a tip is selected for more information about the tip.
  13. charlestek

    charlestek Newbie

    200Mhz FSB only supported with Athlon Barton Xp 3000+

    Well I googled and got my answer. The processor only supports a FSB of 166Mhz. Looks like I'll have to find a 3000+ on ebay or something.
  14. I used to have the 8RDA3G and a barton 2500+ runnning at 2.2Ghz. If you're certain that you do have a barton core, then theoretically you should also be able to reach the same speed. I remember everything except for the FSB was on auto because I was still very new to overclocking. :haha: Oh, and I was using Kingston value RAM's too. :shifty:

    Try to play around with the settings and do more research. You never know, you might get lucky. :thumb:
  15. charlestek

    charlestek Newbie

    Certainly is a Barton

    It certainly is a Barton, from my invoice and from the cpu-z report above. I remember unlocking instructions on Tom's hardware and elsewhere. Anyone can point me to this?
  16. PsYkHoTiK

    PsYkHoTiK Admin nerd

    Why don't you just use a ram divider to have the ram run at DDR400... :D No need to OC and it will certainly save you a bunch of trouble if you don't want to OC...
  17. jasperchc

    jasperchc Newbie

    if your mobo bios allows you to up the fsb little by little then rise it slowly. Maybe its not stable at 200fsb but stable at 190fsb, that's still a big jump from the default 166fsb. And there usually shouldnt be any problem running a barton at 200fsb, if you keep the mhz constant :think:
  18. Chai

    Chai Administrator

    Pointless to do that anyway, just keep it at 166MHz, it will be the same.
  19. goldfries

    goldfries www.goldfries.com

    do consider upping the Vcore.

    note that this will increase the temperature of your processor as well.
  20. Echolac

    Echolac Newbie

    i came across a barton few days ago... i ran it at 2300MHZ.. everything stock except the FSB@200MHZ..runs perfectly fine.. by the way, it uses apacer DDR400 RAMs..dual channel some more:mrgreen::mrgreen:

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