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Thread: Computer turns on but no video shows.




  1. #1
    Join Date
    Dec 2011
    Location
    Illinois
    Posts
    1

    Default Computer turns on but no video shows.

    Hello everyone,

    I was attempting to fix one of my cousin's desktops. I'm still learning all this computer stuff. So, please consider that you're dealing with a noob here.

    So, I left my desktop. I had to go out and when I came back it was off. I tried to turn it on again, but nothing happened. Something that I noticed when I turned it on it was that the fans and hard drive would work. The power button led would not turn on either. But I'd get no video. I tried the same cable and monitor on another computer and it works.

    After unplugging the ram and every other piece of hardware, nothing happened. So I decided to swap the motherboard and got a ASROCK N68CS-UCC. Still the same thing happened. This time though, the computer would turn on when I plugged it in. The power button would not still work. I double checked the LED and PWR plugs in the motherboard and it turned on, but it doesn't anymore.

    So, I kept reading and proceeded to replace the power supply. And it's still the same problem. The desktop came with a 300w PS unit originally. I put a 430w PS unit this time. But still, I get no video and it turns on every time I plug it in.

    OH yeah... and I get no beeps or POST whatsoever for any reason. The only thing left to troubleshoot would be the processor. But wouldn't the motherboard POST if the processor was the problem?

    Any help is more than welcome. Thanks a lot in advance!

    Here are the specs:

    Gateway GT5426E
    Processor AMD Athlon™ 64 X2 5200+, dual core processor with AMD64 Technology
    • Each core operates at 2.6 GHz
    • 2 × 1 MB L2 cache
    • 2000 MHz system bus

    Chipset NVIDIA® GeForce® 6150SE Memory Installed: 2048 MB DDR2, 533 MHz, (PC4200) dual channel memory (two 1024 MB DIMMs)
    Expandable to: 4 GB (4 DDR2 DIMM slots)
    Hard Drive 320 GB, 7200 RPM, SATA II hard drive
    Support for up to two hard drives Optical Drive DVD ±RW, 16X multi-format dual layer drive
    • Write max: 16X DVD±R, 6X DVD-RW, 8X DVD+RW, 4X DVD+R DL, 40X CD-R, 24X CD-RW
    • Read max: 16X DVD-ROM, 40X CD-ROM

    Media Card Reader 15-in-1 high speed digital media manager supporting the following:
    • Compact Flash (CF) I, II
    • IBM Microdrive™ (MD)
    • SmartMedia Card (SMC)
    • Memory Stick™ (MS)
    • Memory Stick Duo (MS Duo)
    • Memory Stick PRO (MS PRO)
    • Memory Stick PRO Duo (MS PRO Duo)
    • Secure Digital™ (SD)
    • Mini Secure Digital (MiniSD)
    • Multi Media Card (MMC)
    • RS Multi Media Card (RS-MMC) (need adapter)
    • Multi Media Plus Card (MMC Plus)
    • Multi Media Mobile Card (MMC Mobile)
    • xD-Picture Card (xD)

    Video NVIDIA GeForce® 6150SE integrated graphics
    Up to 128 MB of shared video memory Audio 8-Channel (7.1) High Definition Audio Network Support Integrated Intel 10/100 Mbps Ethernet LAN Modem 56K ITU V.92 ready fax/modem Power Supply 300 watt Add-in Card Slots One PCI Express ×16 (graphics interface)
    One PCI Express ×1
    Two PCI conventional
    External Connectors One PS/2 keyboard port
    One PS/2 mouse port
    One serial port
    One parallel port
    One VGA monitor port
    Six USB ports (four rear, two front)
    One RJ-45 Ethernet LAN port
    Eight audio jacks (six rear, two front)
    Drive Bays Five total:
    • Two external 5.25-inch
    • One external 3.5-inch
    • Two internal 3.5-inch (hard drive)


    Replacement motherboard: ASROck -N68CS-UCC
    Replacement powersupply: Thermaltake TR2 430W

  2. #2
    Join Date
    Jan 2012
    Location
    IL
    Posts
    1

    Default Re: Computer turns on but no video shows.

    Anyone? Maybe...

  3. #3
    Join Date
    Aug 2009
    Location
    Birmingham,Great Britain
    Posts
    9,250

    Default Re: Computer turns on but no video shows.

    tried with one stick of ram installed? it only leaves ram or the cpu as faulty components? try clearing cmos by removing mb battery for 30 mins then put back in and try
    Gigabyte z77x UP4-TH F11c Modded Bios
    Intel i7 3770k 24/7@4.8ghz 1.38v Turbo llc +0.165v dvid multithreading enabled
    Samsung Green(MV-3V4G3D/US) 8GB @2133mhz 9-10-10-21-1t 1.55v
    Thermalright Silver Arrow Cpu Cooler
    1xSamsung 840 pro 256 Gb SSD windows 8.1 pro 64bit
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    Powercolor 7970 3gb V3 @1150mhz core/1700mhz mem,1.150v Accelero aftermarket air cooler 55c max
    Razer Lycosa Keyboard
    Logitech X-530 5.1 Speakers
    Lite-On iHAS124-19 24x Sata DVDRW
    K-World Hybrid DVB-T 210SE Digital T.V Card
    L.G E2260V L.E.D 1920x1080 Monitor
    Xfx Pro 750w silver rated Psu 80+
    Fractal Arc Midi Case

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