Black screen blues.

Hi All,

Now where do i start! SO basically i have a 4 year old Alienware that likes to black screen every so often, more than not i will get a single ear piercing beep or maybe i will get looping sound and the monitor will have a flashing power button.

I always have to do a hard reset after this and maybe 1 in 10 of these will give me a long beep followed by 3 short beeps which on the phonenix bios list says its a keyboard error?! (very confusing) then it wont boot at all and i have to hard reboot.

It mainly crashes while playing games(MechwarriorOnline) but sometimes i can be browsing the internet and it will just go black screen. Earlier i was running a mem test and it did it.

I ran the recommended CPU-Z and the GPU-Z monitors and kept them recording just as it crashed to which the GPU reached 79Degrees

The biggest mystery i have come across, well 2 really is that in the bios my PSU is showing a steady 12.01v but in the CPUID screen shot i took you can see it shows 9.200V.......any suggestions? could this be causing my PC to black screen? PLus i also heard that my Motherboard Nvidia 790i ultra, never liked Ram that was under 1.65V but in my bios my ram is running at 1.5v, once again could this cause issues?

I'm looking at upgrading my GPU to a 660GTX ti and maybe my power supply but that depends on what you all think is my issue here.

My PC spec is as follows

Alienware Area51

Intel Q9450
Nvidia 790i Ultra
4 meg DDR3
Nvidia 280GTX
X-FI Fatal1ty sound card
PSU 750watt (no idea what make as Alienware like to strip it all off!)

I hope i have included enough information for you guys and that you can help me with this annoying problem.

Thanks in advance!
4 answers Last reply
More about black screen blues
  1. I dont see a screenshot (work mighta blocked it) but if you're seeing 9v then you definitely need a new PSU. 11.4 is as low as the atx spec allows.
  2. CPUID HWMonitor Report
    -------------------------------------------------------------------------

    Binaries
    -------------------------------------------------------------------------

    HWMonitor version 1.2.1.0

    Monitoring
    -------------------------------------------------------------------------

    Mainboard Model alienware (0x000003B8 - 0x043FDF2C)

    LPCIO
    -------------------------------------------------------------------------

    LPCIO Vendor Winbond
    LPCIO Model W83627DHG
    LPCIO Vendor ID 0x5CA3
    LPCIO Chip ID 0xA0
    LPCIO Revision ID 0x25
    Config Mode I/O address 0x2E
    Config Mode LDN 0xB
    Config Mode registers
    00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
    00 FF FF FF FF FF FF FF 0B FF FF FF FF FF FF FF FF
    10 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
    20 A0 25 FF 00 04 00 00 FF 50 00 7E C0 EA 21 00 FF
    30 01 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
    40 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
    50 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
    60 02 90 FF FF FF FF FF FF FF FF FF FF FF FF FF FF
    70 00 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
    Register space LPC, base address = 0x0290


    Hardware Monitors
    -------------------------------------------------------------------------

    Hardware monitor Winbond W83627DHG
    Voltage 0 1.17 Volts [0x92] (CPU VCORE)
    Voltage 1 1.37 Volts [0xAB] (VIN1)
    Voltage 2 3.23 Volts [0xCA] (+3.3V)
    Voltage 3 4.85 Volts [0xCA] (+5V)
    Voltage 4 9.20 Volts [0xA5] (+12V)
    Voltage 5 0.13 Volts [0x10] (VIN5)
    Voltage 6 1.82 Volts [0xE3] (VIN6)
    Temperature 0 96°C (204°F) [0x60] (SYSTIN)
    Temperature 1 38°C (99°F) [0x4B] (CPUTIN)
    Temperature 2 29°C (83°F) [0x39] (AUXTIN)
    Fan 1 1480 RPM [0x72] (CPUFANIN0)
    Hardware registers
    Register space LPC, base address = 0x0290
    bank 0
    00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
    00 A0 FF 84 40 30 00 1E 50 01 02 01 02 3C 3C 0A 0A
    10 A0 FF 50 00 00 01 01 3C 43 17 00 00 FF FF FF D1
    20 92 AB CA CA A5 10 E3 60 FF 72 FF DA 00 0A 09 81
    30 A3 96 C5 12 F3 20 32 4B 00 24 A6 40 C2 3B CA FF
    40 03 7E 1F FF FF FF 07 F5 28 00 40 C4 10 95 00 A3
    50 FF FF 00 FF FF FF 00 00 C1 73 FF FF 19 A5 04 05
    60 A0 02 33 1E 02 02 3C FF 1F FF 1F FF FF FF FF FF
    70 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
    80 A0 FF 84 40 30 00 1E 50 01 02 01 02 3C 3C 0A 0A
    90 A0 FF 50 00 00 01 01 3C 43 17 00 00 FF FF FF D1
    A0 92 AB CA CA A5 10 E3 60 FF 72 FF DA 00 0A 09 81
    B0 A3 96 C5 12 F3 20 32 4B 00 24 A6 40 C2 3B CA FF
    C0 03 00 10 FF FF FF 07 F5 28 00 40 C4 10 95 00 A3
    D0 FF FF 00 FF FF FF 00 00 C1 73 FF FF 19 A5 04 05
    E0 A0 02 33 1E 02 02 3C FF 1F FF 1F FF FF FF FF FF
    F0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
    bank 1
    50 25 80 00 4B 00 50 05 DE FF FF FF FF FF FF FF FF
    bank 2
    50 1C 80 00 4B 00 50 1A 30 FF FF FF FF FF FF FF FF
    bank 3
    50 00 00 07 05 03 02 01 05 01 04 00 C0 2E 03 00 00
    bank 4
    50 3B 13 FF 00 00 00 00 04 84 5E 1D BB 09 5D 20 7F

    Hardware monitor NVIDIA NVAPI
    Voltage 0 1.03 Volts [0x406] (VIN0)
    Temperature 0 58°C (136°F) [0x3A] (TMPIN0)
    Fan PWM 0 40 pc [0x28] (FANPWMIN0)


    Processors
    -------------------------------------------------------------------------

    Number of processors 1
    Number of threads 4

    APICs
    -------------------------------------------------------------------------

    Processor 0
    -- Core 0
    -- Thread 0 0
    -- Core 1
    -- Thread 0 1
    -- Core 2
    -- Thread 0 2
    -- Core 3
    -- Thread 0 3

    Timers
    -------------------------------------------------------------------------

    ACPI timer 3.580 MHz
    HPET timer 25.000 MHz
    Perf timer 2.604 MHz
    Sys timer 1.000 KHz


    Processors Information
    -------------------------------------------------------------------------

    Processor 1 ID = 0
    Number of cores 4 (max 4)
    Number of threads 4 (max 4)
    Name Intel Core 2 Quad Q9450
    Codename Yorkfield
    Specification Intel(R) Core(TM)2 Quad CPU Q9450 @ 2.66GHz
    Package (platform ID) Socket 775 LGA (0x4)
    CPUID 6.7.7
    Extended CPUID 6.17
    Core Stepping C1
    Technology 45 nm
    TDP Limit 95 Watts
    Core Speed 2666.8 MHz
    Multiplier x FSB 8.0 x 333.3 MHz
    Rated Bus speed 1333.4 MHz
    Stock frequency 2666 MHz
    Instructions sets MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, EM64T, VT-x
    L1 Data cache 4 x 32 KBytes, 8-way set associative, 64-byte line size
    L1 Instruction cache 4 x 32 KBytes, 8-way set associative, 64-byte line size
    L2 cache 2 x 6144 KBytes, 24-way set associative, 64-byte line size
    FID/VID Control yes
    FID range 6.0x - 8.0x
    Max VID 1.200 V
  3. Hope this helps! one more thing, this may be a small thing but when i boot up and turn my monitor on i get a screen where it looks like someone has just turned the contrast down but with a strip across the screen which is the normal colours i would normally see, i turn my monitor off then back on again and its all back to normal?!
  4. popatim said:
    I dont see a screenshot (work mighta blocked it) but if you're seeing 9v then you definitely need a new PSU. 11.4 is as low as the atx spec allows.



    Hi I just copy and pasted, i don't know how to attach shots etc of ym screen! sorry! isn't it weird that my Bios shows 12.01V though and yet the CPUID monitor shows 9.2v ??

    I'm confused lol
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