update for corrected system and memory details

Author: christian-byrne

troubleshooting/model-issues.mdx

@@ -107,18 +107,14 @@ If you have models in custom locations, see the detailed guide for [ComfyUI Mode
 **Symptoms:** Long delays when switching models or starting generation
 
 **Solutions:**
-1. **Keep models in VRAM:**
-   ```bash
-   python main.py --highvram
-   ```
-
-2. **Use faster storage:**
+1. **Use faster storage:**
    - Move models to SSD if using HDD
    - Use NVMe SSD for best performance
 
-3. **Adjust caching settings:**
+2. **Adjust caching settings:**
    ```bash
    python main.py --cache-classic       # Use the old style (aggressive) caching. 
+   python main.py --cache-lru 10         # Increase size of LRU cache
    ```
 
 ### Memory Issues with Large Models

troubleshooting/overview.mdx

@@ -49,13 +49,10 @@ Before diving into detailed troubleshooting, try these common solutions:
 
 For low VRAM systems:
 ```bash
-# Low VRAM mode (splits model into parts)
+# Low VRAM mode (uses cpu for text encoder)
 python main.py --lowvram
 
-# Even lower VRAM when --lowvram isn't enough
-python main.py --novram
-
-# CPU mode (very slow but works with any hardware)
+# CPU mode (very slow but works with any hardware, only use as absolute last resort)
 python main.py --cpu
 ```
 
@@ -64,12 +61,6 @@ For better performance:
 # Disable previews (saves VRAM and processing)
 python main.py --preview-method none
 
-# Keep models in VRAM (faster but uses more VRAM)
-python main.py --highvram
-
-# Force FP16 precision (faster, uses less VRAM)
-python main.py --force-fp16
-
 # Use optimized attention mechanisms
 python main.py --use-pytorch-cross-attention
 python main.py --use-flash-attention
@@ -87,8 +78,9 @@ python main.py --reserve-vram 2
 python main.py --disable-smart-memory
 
 # Use different caching strategies
-python main.py --cache-none  # Less RAM usage
-python main.py --cache-lru 10  # Cache 10 results
+python main.py --cache-none      # Less RAM usage, but slower
+python main.py --cache-lru 10    # Cache 10 results, faster
+python main.py --cache-classic   # Use the old style (aggressive) caching. 
 ```
 
 ## Installation-Specific Issues
@@ -108,15 +100,17 @@ python main.py --cache-lru 10  # Cache 10 results
 - **Crashes**: Check Console app for crash reports
 </Tab>
 <Tab title="Linux">
-- **Permission denied**: `chmod +x` the ComfyUI executable
 - **Missing libraries**: Install dependencies with package manager
-- **Display issues**: Set `export DISPLAY=:0` if using SSH
 - **LD_LIBRARY_PATH errors**: PyTorch library path issues (see below)
 </Tab>
 </Tabs>
 
 ### Manual Installation Issues
 
+<Note>
+The documentation may be slightly out of date. If an issue occurs, please manually verify whether a newer stable version of pytorch or any of the listed libraries exists. Refer to resources like the [pytorch installation matrix](https://pytorch.org/get-started/locally/) or the [ROCm website](https://rocm.docs.amd.com/projects/install-on-linux/en/develop/install/3rd-party/pytorch-install.html#using-a-wheels-package).
+</Note>
+
 **Python version conflicts:**
 ```bash
 # Check Python version (3.9+ required, 3.12 recommended)
@@ -139,8 +133,8 @@ pip install -r requirements.txt
 # For NVIDIA GPUs (CUDA 12.8)
 pip install torch torchvision torchaudio --extra-index-url https://download.pytorch.org/whl/cu128
 
-# For AMD GPUs (Linux only - ROCm 6.2.4)
-pip install torch torchvision torchaudio --index-url https://download.pytorch.org/whl/rocm6.2.4
+# For AMD GPUs (Linux only - ROCm 6.3)
+pip install torch torchvision torchaudio --index-url https://download.pytorch.org/whl/rocm6.3
 ```
 
 ### Linux-Specific Issues
@@ -291,11 +285,11 @@ nvidia-smi --query-gpu=driver_version --format=csv
 
 **ROCm support (Linux only):**
 ```bash
-# Install stable ROCm PyTorch (6.2.4)
-pip install torch torchvision torchaudio --index-url https://download.pytorch.org/whl/rocm6.2.4
+# Install stable ROCm PyTorch (6.3.1 at the time of writing)
+pip install torch torchvision torchaudio --index-url https://download.pytorch.org/whl/rocm6.3
 
-# For nightly builds with ROCm 6.3 (might have performance improvements)
-pip install --pre torch torchvision torchaudio --index-url https://download.pytorch.org/whl/nightly/rocm6.3
+# For nightly builds (ROCm 6.4 at the time of writing), which might have performance improvements)
+pip install --pre torch torchvision torchaudio --index-url https://download.pytorch.org/whl/nightly/rocm6.4
 ```
 
 **Unsupported AMD GPUs:**
@@ -309,18 +303,13 @@ HSA_OVERRIDE_GFX_VERSION=11.0.0 python main.py
 
 **Performance optimization:**
 ```bash
-# Enable experimental memory efficient attention
+# Enable experimental memory efficient attention (no longer necessary with PyTorch 2.4)
 TORCH_ROCM_AOTRITON_ENABLE_EXPERIMENTAL=1 python main.py --use-pytorch-cross-attention
 
 # Enable tunable operations (slow first run, but faster subsequent runs)
 PYTORCH_TUNABLEOP_ENABLED=1 python main.py
 ```
 
-**DirectML (Windows):**
-```bash
-pip install torch-directml
-python main.py --directml
-```
 
 ### Apple Silicon (M1/M2/M3) Issues
 
@@ -479,7 +468,3 @@ When reporting any issue, include:
 - **Discord:** [ComfyUI Discord Server](https://discord.com/invite/comfyorg)
 - **Reddit:** [r/comfyui](https://reddit.com/r/comfyui)
 - **YouTube:** [ComfyUI Tutorials](https://www.youtube.com/@comfyorg)
-
-<Note>
-For urgent issues affecting many users, check our [status page](https://status.comfy.org) and [official Twitter](https://x.com/ComfyUI) for announcements.
-</Note>