Nvidia GeForce GTX1080 GTX1080TI Schematics Diagram. PCB Layout
Complete technical diagram of the printed circuit board (PCB) of the Nvidia GeForce GTX 1080 and GTX 1080 Ti graphics cards, intended for diagnostics, repair and technical analysis. The document includes the component topology, power supply layout, signal chains and connection interfaces. Suitable for repair specialists, engineers
📘 The diagram contains:
- Placement and pinout of the GP104 (GTX 1080) and GP102 (GTX 1080 Ti) GPUs
- VRM architecture: chokes, MOSFETs, drivers, power phases
- Layout of GDDR5X video memory modules
- Power line diagrams: Vcore, Vmem, PLL, 1.8V, 5V, 12V
- Interfaces: PCI Express, HDMI 2.0, DisplayPort, DVI-D
- Cooling controllers, temperature sensors, PWM fan signals
- Test points, control voltages, diagnostic points
📦 Relevant for models:
- Nvidia Founders Edition GTX 1080 / 1080 Ti
- AIB manufacturers: ASUS, MSI, Gigabyte, EVGA, Zotac
- Support for custom and reference PCB designs
| password for PDF: www.schematic-expert.com | |
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GTX 1080 / GTX 1080 Ti - Common Breakdowns and Causes
1. 🔥 VRM (power module) failure
- Symptoms: the video card does not turn on, black screen, fans twitch or do not start
- Causes: overheating, weak power phases, unstable power supply from the PSU, overclocking
- Solution: replace damaged MOSFETs, chokes, drivers, check the PWM controller
2. 🌡️ Video memory overheating (GDDR5X)
- Symptoms: artifacts, ripples on the image, game crashes, blue screens
- Causes: insufficient contact with the radiator, old thermal pad, factory overheating
- Solution: replace thermal pads, check the temperature via HWInfo, possibly - chip reballing
3. 💀 Graphics processor (GPU) failure
- Symptoms: complete black screen, PC does not start, fans spin, but no video signal
- Causes: overheating, mechanical damage to the board, manufacturing defect
- Solution: diagnostics with a multimeter and oscilloscope, possible reballing/replacing the GPU (GP104/GP102)
4. 🔌 Problems with PCIe lines
- Symptoms: the card is detected with errors, does not work in x16, BIOS freezes
- Causes: damage to tracks, poor soldering or overheating of the PCIe zone
- Solution: checking signal circuits, restoring tracks, reballing controllers
5. ⚡ Failure of HDMI / DisplayPort outputs
- Symptoms: no image from a certain output, only one port works
- Causes: damage to switching chips, overheating or peak voltage
- Solution: checking lines using diagrams, replacing the controller/ESD protection
6. ❄️ Cooling problems
- Symptoms: the card is noisy, overheats, throttles, fans are not regulated
- Reasons: fan wear, thermal paste degradation, BIOS errors
- Solution: fan replacement, BIOS update, cooling system maintenance
7. 🧠 BIOS errors or reflashing
- Symptoms: black screen after update, incorrect frequencies
- Reasons: installing an inappropriate VBIOS, firmware failure
- Solution: recovery via programmer (CH341A) or "blind" firmware
Monitor the temperature: GPU < 80°C, VRAM < 85°C
Use high-quality PSUs with protection (OVP, OCP)
Do not set unstable overclocks
Clean the video card from dust every 6-12 months
Change thermal paste and thermal pads every 2-3 years