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Poor Memory Write Speeds ( AIDA64 ) going form 3970x to 4960x

Wayâ__
Level 9
Motherboard model: RIVE BE
UEFI Version: 0701
CPU: 4960x S0/S1
Memory kit part number (s) and amount in GB: CMD16GX3M4A2400C9 16GB ( 4x4 )
GPU: ASUS GF 780TI x 3
SSD/HDDs/Optical drives: SAMSUNG 840Pro SSD RAID 0
PSU:Corsair AX1200i
USB Devices (model/version number):
Monitor: SAMSUNG S27A950Dx3
CPU Cooler:Corsair H100i with SP120 fans
PC CASE: Corsair 600T
Operating system: Microsoft Activated yes/no? Windows 8.1 / yes
Drivers Installed (include version):
Any third Party temp/voltage software installed: evga Precision X / MemtweakIT / Aida 64
System Overclocked (provide details)? XMP / Synced 46 x ratio

Issue
I've noticed a change in my memory write values on the AIDA64 memory benchmark test since I got my 4960x and RIVE BE. On my 3970x and RIVE I have getting a substantially higher value and wondering what could possible be causing


As a comparison
i7-4960X Extreme HT 4600 MHz Asus Rampage IV Black Edition X79 Quad DDR3-2400 9-11-11-22 CR1 43759 MB/s
i7-3970X Extreme HT 4600 MHz Asus Rampage IV Extreme X79 Quad DDR3-2400 9-11-11-22 CR1 71120MB/s

39535

39536


Also noticed my latency is up on my ram from 48.3ns to about 53ns

When I try and change my T_CWL_ADJ on Mem TweakIT, it just reverts back to 4 - i've seen on the interwebs that this could be causing the write speed issue ?

Thanks for the help
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6 REPLIES 6

WillyK
Level 10
Similar experience upgrading from SB (3960x) to IB-E (4960x) @ same rated DDR3-1600 XMP RAM. I thought it was the transition from SB (which R4E is made for) to IB-E, but it's interesting that you're experiencing the same behavior from 4960x on R4BE which is allegedly made and optimized for IB-E, especially with respect to RAM!

Wayâ__
Level 9
Where do I find this ? I can' see it under my tertiary timings in both Mem Tweakit and the UEFI ?

tRDRD: Sets the delay between consecutive read requests to the same page. From a performance perspective, this setting is best kept at 4 clocks. Relax only if the memory is not stable or the system will not POST. Very few memory modules can handle a setting of 4 clocks at speeds above DDR3-2400 so you may need to relax accordingly, although the performance hit may negate any gains in frequency.

Wayâ__
Level 9
Anyone ? 😞

See this:
http://rog.asus.com/forum/showthread.php?46486-X79-BIOS-bug-might-affect-all-x79-boards&country=&sta...

The hasn't been a response about it yet since I started complaining about it 7-8 months ago.
Board is pretty much useless without the fix.

NEOAethyr wrote:
See this:
http://rog.asus.com/forum/showthread.php?46486-X79-BIOS-bug-might-affect-all-x79-boards&country=&sta...

The hasn't been a response about it yet since I started complaining about it 7-8 months ago.
Board is pretty much useless without the fix.


OMG *shattered*

ASUS please fix this ://

Praz
Level 13
Hello

As you have already posted in the original thread regarding this please continue to post there any time it is felt necessary. I will close this thread to avoid duplication.

http://rog.asus.com/forum/showthread.php?46486-X79-BIOS-bug-might-affect-all-x79-boards&p=423850#pos...