Memory Timings: Anand vs. Asus BIOS vs. CPU-Z

[InterMurph]

All of the memory articles on Anand describe memory timings with four numbers: for example, "4-4-4-12". I'm looking for specifics on what each number refers to.

I ask because CPU-Z and my Asus P5W DH Deluxe BIOS specify the numbers in a different order.

CPU-Z reports them in this order:

1. CAS# Latency

1. RAS# to CAS# Delay

1. RAS# Precharge

1. Cycle time (Tras)

The Asus BIOS lets me tinker with them in this order:

1. CAS# Latency

1. RAS# Precharge

1. RAS# to CAS# Delay

1. RAS# Activate to Precharge Delay

1. Write Recovery Time

Both agree that CAS# Latency is first.

CPU-Z specifies RAS# to CAS# Delay second, and the Asus BIOS specifies it third.

CPU-Z specifies RAS# Precharge third, and the Asus BIOS specifies it first.

I also am assuming that what CPU-Z calls Cycle time (Tras) is the same thing as what the Asus BIOS calls RAS# Activate to Precharge Delay.

So when the Asus BIOS says 5-5-4-15, CPU-Z will report 5-4-5-15.

So my question is: when Anand reports memory timings, which order are they using? The CPU-Z order (5-4-5-15 in this example)? Or the Asus BIOS order (5-5-4-15)?

Thanks.

 

[myocardia]

Nobody but Asus uses the order that Asus uses. CPU-Z uses the "standardized" order, that we all use when referring to memory timings, no matter what order our motherboard's BIOS lists them in. Anand was also using the standardized order.

 

[InterMurph]

OK, thanks!