ASROCK Fatal1ty X99X Killer Series User Manual

English
Fatal1ty X99X Killer Series
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Row Precharge Time (tRP)
e number of clock cycles required between the issuing of the precharge command
and opening the next row.
RAS# Active Time (tRAS)
e number of clock cycles required between a bank active command and issuing the
precharge command.
Command Rate (CR)
e delay between when a memory chip is selected and when the rst active command can
be issued.
Secondary Timing
Write Recovery Time (tWR)
e amount of delay that must elapse aer the completion of a valid write operation,
before an active bank can be precharged.
Refresh Cycle Time (tRFC)
e number of clocks from a Refresh command until the rst Activate command to
the same rank.
RAS to RAS Delay (tRRD)
e number of clocks between two rows activated in dierent banks of the same
rank.
RAS to RAS Delay (tRRD_L)
e number of clocks between two rows activated in dierent banks of the same
rank.
Write to Read Delay (tWTR)
e number of clocks between the last valid write operation and the next read
command to the same internal bank.
Write to Read Delay (tWTR_L)
e number of clocks between the last valid write operation and the next read command to
the same internal bank.
Read to Precharge (tRTP)
e number of clocks that are inserted between a read command to a row pre-
charge command to the same rank.

ASROCK Fatal1ty X99X Killer Series Specifications

General

Chipset	Intel X99
CPU Socket	LGA 2011-v3
Max Memory	128GB
Form Factor	ATX
Memory Slots	8 x DIMM
Expansion Slots	3 x PCIe 3.0 x16, 2 x PCIe 2.0 x1
Multi-GPU Support	AMD 3-Way CrossFireX, NVIDIA Quad SLI
Storage Interface	10 x SATA3
USB Ports	4 x USB 3.0 ports (2 on the rear panel, 2 via header), 8 x USB 2.0 ports (4 on the rear panel, 4 via header)
Audio	Realtek ALC1150 Audio Codec
LAN	Killer E2200 Series Gigabit LAN
Memory Support	DDR4 2800(OC)/2400(OC)/2133