GB GA-EP45-UD3R Help me tighten memory settings

[paolo]

Running Vista64 with a Q9550 (C1) @ 3.6GHz on a GA-EP45-UD3R (beautiful board!) w/ 8G (2Gx4) of Corsair Twin2x4096-6400C5 DDR2 running @850Mhz. System has been stable incl via Prime 95 Torture Test. I want to see if I can tighten my timings to improve performance. My bios settings are as follows:

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Robust Graphics Booster ...............: Fast<o:p></o:p>
CPU Clock Ratio ..........................: 8x<o:p></o:p>
Fine CPU Clock Ratio.....................:. +0.5<o:p></o:p>
CPU Frequency ...........................: 3.61GHz (425x8.5) <o:p></o:p>
<o:p> </o:p>
<o:p> </o:p>
Clock Chip Control<o:p></o:p>
Standard Clock Control<o:p></o:p>
CPU Host Clock Control..................: [Enabled]<o:p></o:p>
CPU Host Frequency (Mhz) ............: 425 Mhz<o:p></o:p>
PCI Express Frequency (Mhz) .........: 100<o:p></o:p>
<o:p> </o:p>
<o:p> </o:p>
Advanced Clock Control [Press Enter]<o:p></o:p>
<st1:address w:st="on"><st1:street w:st="on">CPU Clock Drive</st1:street></st1:address>...........................: 800mV<o:p></o:p>
<st1:address w:st="on"><st1:street w:st="on">PCI Express Clock Drive</st1:street></st1:address>.................: 900mV<o:p></o:p>
CPU Clock Skew (ps)....................: 50ps<o:p></o:p>
MCH Clock Skew (ps)...................: 100ps<o:p></o:p>
<o:p> </o:p>
<o:p> </o:p>
DRAM Performance Control<o:p></o:p>
Performance Enhance...................: [STANDARD]<o:p></o:p>
Extreme Memory Profile (X.M.P.).....: Disabled<o:p></o:p>
(G)MCH Frequency Latch...............: [400MHz]<o:p></o:p>
System Memory Multiplier ..............: {2.00D]<o:p></o:p>
Memory Frequency (Mhz) ..............: 850<o:p></o:p>
DRAM Timing Selectable ................: [Manual]<o:p></o:p>
<o:p> </o:p>
Standard Timing Control<o:p></o:p>
CAS Latency Time........................ 5<o:p></o:p>
tRCD ......................................... 5<o:p></o:p>
tRP'........................................... 5<o:p></o:p>
tRAS.......................................... 18<o:p></o:p>
<o:p> </o:p>
Advanced Timing Control<o:p></o:p>
tRRD........................................... 3<o:p></o:p>
tWTR.......................................... 3<o:p></o:p>
tWR............................................ 3<o:p></o:p>
tRFC........................................... 62<o:p></o:p>
tRTP........................................... 3<o:p></o:p>
Command Rate (CMD) ....................:2<o:p></o:p>
<o:p> </o:p>
Channel A<o:p></o:p>
Static tRead Value.........................: 9<o:p></o:p>
tRD Phase0 Adjustment...................:<<< Leave for all below as well<o:p></o:p>
tRD Phase1 Adjustment...................:Auto<o:p></o:p>
tRD Phase2 Adjustment .................:Auto<o:p></o:p>
tRD Phase3 Adjustment..................:Auto<o:p></o:p>
Trd2rd(Different Rank)....................:Auto<o:p></o:p>
Twr2wr(Different Rank)...................:Auto<o:p></o:p>
Twr2rd(Different Rank)...................:Auto<o:p></o:p>
Trd2wr(Same/Diff Rank)..................:Auto<o:p></o:p>
Dimm1 Clock Skew Control...............:Auto ps<o:p></o:p>
Dimm2 Clock Skew Control...............:Auto ps<o:p></o:p>
<o:p> </o:p>
Channel B<o:p></o:p>
Static tRead Value.........................: 9<o:p></o:p>
tRD Phase0 Adjustment...................:<<< Leave for all below as well<o:p></o:p>
tRD Phase1 Adjustment...................:Auto<o:p></o:p>
tRD Phase2 Adjustment .................:Auto<o:p></o:p>
tRD Phase3 Adjustment..................:Auto<o:p></o:p>
Trd2rd(Different Rank)....................:Auto<o:p></o:p>
Twr2wr(Different Rank)...................:Auto<o:p></o:p>
Twr2rd(Different Rank)...................:Auto<o:p></o:p>
Trd2wr(Same/Diff Rank)..................:Auto<o:p></o:p>
Dimm1 Clock Skew Control...............:Auto ps<o:p></o:p>
Dimm2 Clock Skew Control...............:Auto ps<o:p></o:p>
<o:p> </o:p>
Motherboard Voltage Control<o:p></o:p>

CPU<o:p></o:p>





<o:p> </o:p>
MCH/ICH<o:p></o:p>





<o:p> </o:p>
DRAM<o:p></o:p>


Channel A Reference 0.900V............: auto <o:p></o:p>
Channel B Reference 0.900V............: auto<o:p></o:p>
<o:p> </o:p>
Advanced Settings<o:p></o:p>
Limit CPUID Max. to 3.....................: [Disabled]<o:p></o:p>
No-Execute Memory Protect............: [Enabled]<o:p></o:p>
CPU Enhanced Halt (C1E)................: [Disabled]<o:p></o:p>
C2/C2E State Support....................: [Disabled]<o:p></o:p>
x C4/C4E State Support..................: [Disabled]<o:p></o:p>
CPU Thermal Monitor 2(TM2) ...........: [Enabled]<o:p></o:p>
CPU EIST Function.........................: [Disabled]<o:p></o:p>
Virtualization Technology................: [Disabled]


Any suggestions would be greatly appreciated.
<o:p></o:p>

[paolo]

Re: GB GA-EP45-UD3R Help me tighten memory settings

By the way I compared the "retouchartists photoshop speedtest" times (CS4) of this setup vs my prior computer, a Athlon64 X2 @ 2.6GHz : 18sec vs 110sec (Unbelievable !)

[Lsdmeasap]

Re: GB GA-EP45-UD3R Help me tighten memory settings

See if this can help you any >>>>

MCH Clock Skew (ps)...................: 100ps


DRAM Performance Control
Performance Enhance...................: [STANDARD]
Extreme Memory Profile (X.M.P.).....: Disabled
(G)MCH Frequency Latch...............: [400MHz] << if you use 399 you may be able to get the 333 strap stable and use a lower static Tread value. If you do, of course, your ram multi you would want is 2.00B

System Memory Multiplier ..............: {2.00D]
Memory Frequency (Mhz) ..............: 850
DRAM Timing Selectable ................: [Manual]

Standard Timing Control
CAS Latency Time........................ 5
tRCD .........................................415
tRP'...........................................4/5
tRAS.......................................... 15/18

^^ if your ram is stock 555-18 the above lower values may or may not work ^^^


Advanced Timing Control
tRRD........................................... 3
tWTR.......................................... 3
tWR............................................ 3-6
tRFC........................................... 48-62
tRTP........................................... 3
Command Rate (CMD) ....................:2

You should also see this setting below, when you flashed to the latest BIOS (You have right?) you did load and apply optimized defaults and save/reboot right? If not you need to do that, then go back to the BIOS to set all other settings again (Including SATA Settings) >>>

Driving Strength Profiles
Driving Strength ............................ 800-1066 (1066 would be best at 850-900)

If you did all that above about flashing and you still do not see this, please try the hotkey. On the MAIN Page of the BIOS hit Control + F1 and the screen will flash, then go into MIT section and see if you can find this.

If you have not flashed your BIOS, please consider doing so. And DO NOT USE @BIOS, here is a Qflash Guide I wrote >>>

http://forums.tweaktown.com/f69/bios-flashing-how-qflash-guide-27576/

Channel A
Static tRead Value.........................: 9-10 400 MCH (6/7-9 333 MCH)
tRD Phase0 Adjustment...................:<<< Leave for all below as well
tRD Phase1 Adjustment...................:Auto
tRD Phase2 Adjustment .................:Auto
tRD Phase3 Adjustment..................:Auto
Trd2rd(Different Rank)....................:Auto
Twr2wr(Different Rank)...................:Auto
Twr2rd(Different Rank)...................:Auto
Trd2wr(Same/Diff Rank)..................:Auto
Dimm1 Clock Skew Control...............:Auto ps
Dimm2 Clock Skew Control...............:Auto ps

Channel B
Static tRead Value.........................: 9-10 400 MCH (6/7-9 333 MCH)
tRD Phase0 Adjustment...................:<<< Leave for all below as well
tRD Phase1 Adjustment...................:Auto
tRD Phase2 Adjustment .................:Auto
tRD Phase3 Adjustment..................:Auto
Trd2rd(Different Rank)....................:Auto
Twr2wr(Different Rank)...................:Auto
Twr2rd(Different Rank)...................:Auto
Trd2wr(Same/Diff Rank)..................:Auto
Dimm1 Clock Skew Control...............:Auto ps
Dimm2 Clock Skew Control...............:Auto ps

Motherboard Voltage Control
Voltage Type.………... Manual
CPU
CPU Vcore….……….........................: 1.32
CPU Termination…..... 1.200V*.......: 1.26
CPU PLL…………………....1.500V*.......: 1.5
CPU Referen.…………....0.755V*.......: auto
CPU Reference2………,,0.800V*.......: N/A

MCH/ICH
MCH Core…………….....1.100V...........: 1.28 << try 1.26 or less yet?
MCH Reference….…….0.800V...........; Auto
MCH/DRAM Ref.…......0.900V...........: auto
ICH I/O……………….....1.550V............: auto
ICH Core…………...……1.100V............: auto

DRAM
DRAM Voltage ……....1.800V............: 1.9-2.1
DRAM Termination .…0.900V............: auto
Channel A Reference 0.900V............: auto
Channel B Reference 0.900V............: auto


YA, new boards are great, especially coming from a older system! I am super impressed with the new i7 boards and the triple channel DDR3 benchmarks!

[paolo]

Re: GB GA-EP45-UD3R Help me tighten memory settings

Thanks lsdmeasap, I will give that 399 > 333 strap trick a whirl. As far as the i7 scene goes, exciting to look at, but I (and my wallet) like to stay a bit behind the curve.

[Lsdmeasap]

Re: GB GA-EP45-UD3R Help me tighten memory settings

Good luck! Ya, me too on the i7 comment