No, 2133 MHz does not only run at 1333 MHz. The number 2133 MHz refers to the maximum speed at which the memory module can operate, but it can also run at lower speeds if needed. The actual speed at which the memory module operates depends on the system's configuration and settings. **

Yes, DDR3 1600 is compatible with DDR3 1333. When different RAM modules with varying speeds are used together, they will operate at the speed of the slowest module, in this case, DDR3 1333. This means that the DDR3 1600 RAM will downclock to match the speed of the DDR3 1333 RAM for compatibility. **

In DIN 1333, rounding is done by following specific rules. When rounding to a specific number of decimal places, the digit following the last retained digit is examined. If this digit is 5 or greater, the last retained digit is increased by 1. If the digit is less than 5, the last retained digit remains unchanged. Additionally, if the digit following the last retained digit is exactly 5, the last retained digit is rounded up if it is an odd number, and remains unchanged if it is an even number. **

When choosing a heating thermostat, it is important to consider factors such as compatibility with your heating system, ease of use, energy efficiency features, and smart technology capabilities. Some popular options include programmable thermostats, smart thermostats like Nest or Ecobee, and zoned heating systems. Ultimately, the best heating thermostat for you will depend on your specific needs and preferences. **

The sun and moon are often depicted on a heating thermostat to represent the temperature settings for different times of the day. The sun typically represents the daytime temperature setting, while the moon represents the nighttime temperature setting. This allows users to easily program their thermostat to adjust the temperature based on the time of day, helping to save energy and maintain comfort in the home. Additionally, the sun and moon symbols provide a visual cue for users to understand and adjust their thermostat settings accordingly. **

The 2666 MHz RAM only running at 1333 MHz could be due to several reasons. One possibility is that the motherboard or CPU may not support the full 2666 MHz speed, so it automatically downclocks the RAM to a lower speed that is compatible. Another reason could be that the RAM is not properly configured in the BIOS settings to run at its full speed. It's also possible that there may be a compatibility issue between the RAM and other components in the system, causing it to run at a lower speed for stability reasons. **

The decision to upgrade the RAM to 1067 MHz or 1333 MHz depends on your specific needs and the compatibility of your system. If your system supports both speeds and you require faster performance for tasks like gaming or video editing, then upgrading to 1333 MHz may be beneficial. However, if your system is not compatible with 1333 MHz RAM or if you do not need the extra speed for your regular usage, sticking with 1067 MHz may be more cost-effective. It's important to check your system's specifications and consider your usage requirements before making a decision. **

Without further information or context, it is difficult to determine if the thermostat is broken. Common signs of a broken thermostat include the heating or cooling system not turning on or off at the desired temperature, inconsistent temperatures throughout the home, or the thermostat display not functioning properly. It is recommended to check for these signs and consider consulting a professional if necessary. **