Memory configurations

You may install 2GB, 4GB and 8GB unbuffered and non‑ECC DDR3 DIMMs into the DIMM sockets.

• You may install varying memory sizes in Channel A and Channel B. The system maps the total size of the lower-sized channel for the dual-channel configuration. Any excess memory from the higher-sized channel is then mapped for single-channel operation.

•According to Intel® CPU spec, a DIMM voltage below 1.65V is recommended to protect the CPU.

•Always install DIMMs with the same CAS latency. For optimum compatibility, we recommend that you obtain memory modules from the same vendor.

•Due to the memory address limitation on 32-bit Windows® OS, when you install 4GB or more memory on the motherboard, the actual usable memory for the OS can be about 3GB or less. For effective use of memory, we recommend that you do any of the following:

a)Use a maximum of 3GB system memory if you are using a 32-bit Windows® OS.

b)Install a 64-bit Windows® OS when you want to install 4GB or more on the motherboard.

c)For more details, refer to the Microsoft® support site at http://support.microsoft. com/kb/929605/en-us.

•This motherboard does not support DIMMs made up of 512Mb (64MB) chips or less (Memory chip capacity counts in Megabit, 8 Megabit/Mb = 1 Megabyte/MB).

•	The default memory operation frequency is dependent on its Serial Presence Detect
	(SPD), which is the standard way of accessing information from a memory module.
	Under the default state, some memory modules for overclocking may operate at a
	lower frequency than the vendor-marked value. To operate at the vendor-marked
	value or at a higher frequency, refer to section 3.5 Ai Tweaker menu for manual
	memory frequency adjustment.
•	For system stability, use a more efficient memory cooling system to support a full
	memory load (4 DIMMs) or overclocking condition.
•	Memory modules with memory frequency higher than 2133MHz and their
	corresponding timing or the loaded XMP profile is not the JEDEC memory standard.
	The stability and compatibility of the memory modules depend on the CPU’s
	capabilities and other installed devices.
•	Always install DIMMS with the same CAS Latency. For optimum compatibility, we
	recommend that you install memory modules of the same version or data code (D/C)
	from the same vendor. Check with the vendor to get the correct memory modules.	1
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ASUS Z87-WS

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Z87-WS, 90SB0390M0AAY0, Z87WS, Z87C specifications

Asus, a leading player in the technology marketplace, has designed a range of motherboards catering to various user needs. The Asus Z87C and Z87WS exemplify innovation with their feature sets and performance capabilities, appealing to both gamers and professionals alike.

The Asus Z87C motherboard is built upon the Intel Z87 chipset, which supports the latest 4th generation Intel Core processors. Its dual-channel DDR3 memory enables support for up to 32GB RAM, ensuring high performance and multitasking capabilities. This board is designed with three PCIe 3.0 slots, allowing for multiple graphics cards, thus enhancing the gaming and graphic rendering experience. The addition of SATA 3 and USB 3.0 ports provides fast data transfer rates, which is essential for modern storage solutions.

Furthermore, the Z87C incorporates the Asus exclusive DIGI+ VRM technology, which enhances power delivery and thermal performance, ensuring stability during intense operations. With its AI Suite, users have access to various tuning and monitoring features, enabling easy system overclocking and resource management.

On the other hand, the Asus Z87WS is engineered with professional users in mind, particularly in workstations that require higher processing power and reliability. This motherboard supports Intel's Xeon processors and advanced graphics configurations, making it suitable for demanding applications in fields such as CAD and digital content creation.

The Z87WS boasts an impressive feature set, including dual Intel LAN ports for enhanced network performance and redundancy. It also comes equipped with a Thunderbolt header for lightning-fast connectivity with compatible devices. Like the Z87C, the Z87WS leverages digital power design that assures voltage stability and efficiency.

Both motherboards come with robust audio systems courtesy of the Realtek ALC892/1150 codec, ensuring an immersive audio experience. Additionally, they feature a comprehensive BIOS that provides all the necessary tools for system customization, ranging from memory tweaks to fan speed controls.

Overall, the Asus Z87C and Z87WS are manifestations of cutting-edge technology and engineering, tailored to provide high performance, stability, and flexibility for both gamers and professionals in demanding environments. Each model emphasizes reliability and advanced features, making them suitable choices for users seeking outstanding computing performance.

Asus Z87C, Z87WS, Z87-WS, 90SB0390M0AAY0 manual Memory configurations

Models: Z87-WS 90SB0390M0AAY0 Z87WS Z87C

Memory configurations

Chapter

Z87-WS, 90SB0390M0AAY0, Z87WS, Z87C specifications