computing
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Video Card No Signal Problem. Red LED On Sabertooth Z77.

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Please help with video card/system question.

Just bought a new computer.

The specs are:
BLUETOOTH: None
CAS: Corsair Carbide 300R Mid-Tower Gaming Case w/ front USB 3.0 [+13]
CASUPGRADE: 12in Cold Cathode Neon Light [+10] (Green Color [+0])
CD: 24X Double Layer Dual Format DVD+-R/+-RW + CD-R/RW Drive (BLACK COLOR)
CD2: None
COOLANT: Standard Coolant
CPU: Intel® Core™ i7-3770K 3.50 GHz 8MB Intel Smart Cache LGA1155 (All Venom OC Certified) [+116]
CS_FAN: Maximum 120MM Color Case Cooling Fans for your selected case [+15] (Green Color [+0])
FAN: Thermaltake Water 2.0 Performer Liquid Cooling System 120MM Radiator [+35] (Single Standard 120MM Fan)
FLASHMEDIA: None
HDD: 2TB (2TBx1) SATA-III 6.0Gb/s 64MB Cache 7200RPM HDD [+27] (Single Drive)
HDD2: 64GB SanDisk SATA III 6.0Gb/s SSD – 490 MB/s Read & 240 MB/s Write [+60] (Single Drive)
IEEE_CARD: None
IUSB: Built-in USB 2.0 Ports
KEYBOARD: AZZA Multimedia USB Gaming Keyboard
MB_SRT: None
MEMORY: 8GB (4GBx2) DDR3/2133MHz Dual Channel Memory [+17] (G.SKILL Ripjaws X [+7])
MONITOR: * 24″ Widescreen 1920×1080 ASUS VS247H-P LCD [+157]
MOTHERBOARD: [CrossFireX/SLI] ASUS Sabertooth Z77 Intel Z77 Chipset DDR3 ATX Mainboard w/ Lucid Virtu MVP, TUF Thermal Armor, 7.1 HD Audio, Intel GbLAN, Display Port, 3x PCIe x16 (2 Gen3, 1 Gen2) & 3x PCIe x1 (All Venom OC Certified) [+184]
MOUSE: AZZA Optical 1600dpi Gaming Mouse with Weight Adjustable Cartridge
NETWORK: Onboard Gigabit LAN Network
OS: Microsoft® Windows 7 Home Premium [+104] (64-bit Edition)
OVERCLOCK: No Overclocking
POWERSUPPLY: 1,000 Watts – Cooler Master Silent Pro Gaming 80 Plus Power Supply [+133]
SOUND: HIGH DEFINITION ON-BOARD 7.1 AUDIO
VIDEO: AMD Radeon HD 7970 3GB 16X PCIe 3.0 Video Card [+371] (Major Brand Powered by AMD)

When I got the computer I took it out of the box, took off the case cover and made sure all the connections were secure, after that I tried hooking it up to my monitor and got a “No signal” message on the monitor, but everything else in the computer was running. (No windows was not booting, no the computer did not turn off itself after any amount of time, and yes the video card was connected to the powersupply properly and the video card fan was spinning.) It just sat there with the no signal message on the monitor and the red LED light on the PCI-E slot of the motherboard active so I investigated.

First I called cyberpower tech support and told them what was happening. They had me re-seat the connections, RAM, and video card. That did not solve the problem. They said that they think the video card was DOA because I tested the computer with my old video card (Nvidia 9800 GTX+) and everything worked perfectly.

I researched to find out that there was issues with the ASUS Sabertooth Z77 and some video cards causing the red LED light on the first PCI-E slot to be activated indicating a “VGA error”. This was a BIOS bug. So I flashed my BIOS to the latest version (1708) people have said this fixes the red LED no signal issue, but the problem continues for me.

Can anyone help me with this problem?

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1 Answer

  1. After u flashed the BIOS did u clear the CMOS?
    Test HD 7970 with 1000W PSU in another working system to see if it is real dead.

    You know the real meaning of peace only if you have been through the war.

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