IEI Integration WAFER-LX v1.0 User Manual

Page 87

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WAFER-LX User Manual

Precharge dealy (tRAS) [12]

The Precharge Dealy option

allows you to set the time it takes for the RAS to start retrieving the

actual data after a request has been issued to the memory module.

(To be able to change this

configuration option the DRAM RAS# Precharge configuration option must be set to “Manual”)

The following configuration options are available,

1. Auto

2. 2

nanoseconds

3. 3

nanoseconds

4. 4

nanoseconds

5. 5

nanoseconds

6. 6

nanoseconds

7. 7

nanoseconds

8. 8

nanoseconds

9. 9

nanoseconds

10. 10

nanoseconds

11. 11

nanoseconds

12.

12 nanoseconds (D

EFAULT

)

13. 13

nanoseconds

14. 14

nanoseconds

15. 15

nanoseconds

System Memory Frequency

The System Memory Frequency configuration option allows you to manually select the speed of

the installed memory module. The default value is 533MHz. If you are not certain of what value to

select, select “Auto” and the BIOS will automatically detect the speed. (To be able to change this

configuration option the DRAM RAS# Precharge configuration option must be set to “Manual”)

The following configuration options are available,

1. Auto

2. 333MHz

3. 400MHz

4. 533MHz

(D

EFAULT

)

SLP_S4# Assertion Width [4 to 5 sec]

The following configuration options are available,

4-22

IEI

®

Technology, Corp.

4-22

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