8GB of F2-8500CL5D-4GBPK on Asus P5Q Pro Turbo

[petey305]

Hi folks,

First off, the details:

Asus P5Q Pro Turbo
F2-8500CL5D-4GBPK memory 2 packages (8GB tatal - 4 x 2GB dimms)
Intel Q9400 2.6GHz QC proc

I'm wondering if anyone has gotten this to at 8gb to run stable at 1066? If so, what are your timings? I'm looking for full timings for THIS board...because I just setting 5-5-5-15-2T at 2.1V doesnt work for me. That works at 800...but not at 1066 (I get a crash when stress testing with Prime95 at 1066).

Also, I'm having a strange issue with wake that I've outlined over in the asus forum here:

http://vip.asus.com/forum/view.aspx?...Language=en-us

I'm wondering if it's related to memory timings or something...so if anyone has any thoughts on full timings for THIS board (either at 1066 or 800), I'd love to try them.

The reason I'm adament about THIS board, is that I've gone through the stickies, which don't have the board called out specifically, and tried about all of them, and I have yet to make the situation better (but I can easily make it worse :-D). So I'm hoping that someone with this exact board/memory combo can chime in and let me know if they are having the same problem, and whether memory timing is the culprit here, or if it's something else.

Thanks in advance!!

JP

[GSKILL TECH]

Raise NB Voltage to 1.40V and that should solve the instability. The memory controller can be overloaded with 4 sticks.

Thank you
GSKILL SUPPORT

[petey305]

Thanks...sorry, I thought I mentioned that, but I re-read my original post, and I must have forgot and left that out. I have NB at 1.4... Still locks up when I launch Prime95 everytime at 1066...800 it runs fine.

JP

[Tradesman]

What's your tRFC at? If your BIOS version shows tRFC in nano-seconds (ns) you'll want 195 if it's just in clicks then about 86-88

[GSKILL TECH]

Post up screen shots of your BIOS and we can see what you may have set incorrectly.

Thank you
GSKILL SUPPORT

[petey305]

Thanks for the help guys. Here is what I have right now. I have been running DRAM Frequency of DDR2-800, with tRFC set to Auto, but just changed this based on above comments, I haven't tested this for stability yet:

AI Overclock Tuner - Manual
CPU Ratio Setting - Auto
FSB Frequency - 333
PCIE Frequency - 100
FSB Strap to North Bridge - Auto
DRAM Frequency - DDR2-1066
tCL - 5 DRAM Clocks
tRCD - 5 DRAM Clocks
tRP - 5 DRAM Clocks
tRAS - 15 DRAM Clocks
tRRD - Auto
tRFC - 85 DRAM Clocks
tWR - Auto
tRTP - Auto
tRTW - Auto
tWTR_S - Auto
tWRT_D - Auto
tRTR_S - Auto
tRTR_D - Auto
tWTW_S - Auto
tWTW_D - Auto
tWTPD - Auto
tRTPD - Auto
tPTPD - Auto
tAPTAD - Auto
tAPTRD - Auto
DRAM Static Read Control - Auto
DRAM Read Training - Auto
MEM OC Charger - Auto
AI Clock Twister - Auto
AI Transaction Booster - Auto
CPU Voltage - Auto
CPU GTL Reference - Auto
CPU PLL Voltage - Auto (States 1.5v)
FSB Termination Voltage - Auto (States 1.10v due to 45nm CPU)
DRAM Voltage - 2.10
NB Voltage - 1.40
SB Voltage - Auto (States 1.10v)
PCIE Sata Voltage - Auto (States 1.5v)
Load-Line Calibration - Auto
CPU Spread Spectrum - Auto
PCIE Spread Spectrum - Auto
CPU Clock Skew - Auto
CPU Margin Enhancement - Optimized

Also, all the settings on this board for timings are in DRAM Clock, I didn't see any in ns (just FYI ;-D).

Thanks again!

JP

[petey305]

I should note, that in my BIOS, I have no option (that I see) for Command Rate, but CPUID-Z shows that it is running at 2T...so that's probably ok...

[Tradesman]

2T is good, if it shows instability might need to raise the tRFC just a bit more 87-88

[petey305]

Thanks Tradesman....

I have Memtest running right now...hopefully that will all show stable. I'm on the east coast, and it's midnight now, so I'll know in the morning.

Unfortunately, 85 is the closest I can get on tRFC...this MB has fixed increments, and it jumps from 85 to 105 DRAM clocks. With any luck...it's no issue anyway and memtest will pass. Hopefully it will help fix the weird wake issue I was writing about on the asus forum (linked above)...but who knows, memory timings is a long shot there...no idea if it's truly the culprit or not.

See anything else that I should change at all?

Thanks again for the help!

JP

[petey305]

well..no luck with the above settings. Memtest ran for 3h50m last night, and passed without error (so it said). I treied to boot up into windows and as the desktop was coming up it froze solid twice, at the exact same spot. dropped the settings down to ddr-800, and it boots fine (memtest passes with this). For reference, here are the ddr-800 settings that are rock solid (basically auto...and yes, I tried mostly auto settings with 1066...no luck):


AI Overclock Tuner - Auto
FSB Strap to North Bridge - Auto
DRAM Frequency - DDR2-1066
tCL - 5 DRAM Clocks
tRCD - 5 DRAM Clocks
tRP - 5 DRAM Clocks
tRAS - 15 DRAM Clocks
tRRD - Auto
tRFC - Auto
tWR - Auto
tRTP - Auto
tRTW - Auto
tWTR_S - Auto
tWRT_D - Auto
tRTR_S - Auto
tRTR_D - Auto
tWTW_S - Auto
tWTW_D - Auto
tWTPD - Auto
tRTPD - Auto
tPTPD - Auto
tAPTAD - Auto
tAPTRD - Auto
DRAM Static Read Control - Auto
DRAM Read Training - Auto
MEM OC Charger - Auto
AI Clock Twister - Auto
AI Transaction Booster - Auto
CPU Voltage - Auto
CPU GTL Reference - Auto
CPU PLL Voltage - Auto (States 1.5v)
FSB Termination Voltage - Auto (States 1.10v due to 45nm CPU)
DRAM Voltage - 2.10
NB Voltage - 1.40
SB Voltage - Auto (States 1.10v)
PCIE Sata Voltage - Auto (States 1.5v)
Load-Line Calibration - Auto
CPU Spread Spectrum - Auto
PCIE Spread Spectrum - Auto
CPU Clock Skew - Auto
CPU Margin Enhancement - Optimized


Any thoughts?

Thanks!

JP

[Tradesman]

If memtest ran OK, first check that you have the latest BIOS, 0602 (which you prob do), can be found here:

http://www.asus.com/Product.aspx?P_ID=c19zNYHCAXhCqBPq

Next let's try NB at 1.42, DRAM @2.14 (yes it's safe, actually to to about 2.2), tRFC 88.

If still problems what is your vCore, and are you OCing the 9400 any? That would help w/ the 8GB, your 9400 is good for 3 GHz+ on air w/ the stock cooler, even more w/ a decent 3rd party HS.

[petey305]

Thanks again Tradesman!

Yup, definitely running 0602...no problem there. I'll give those NB and DRAM voltages a shot. Unfortunatly, I can adjust tRFC much. I can select 85 or the next step is 105...doh!

I'm not overclocking at all, was hoping to get everything stable before I tried anything like that...I know nothing about overclocking, but it's intriguing. I just did some very basic reading on it, and tried a couple of things...mostly adjusting FSB (tried 375, 400 etc) just to play around, and then tried selecting different memory speeds based on options that showed up after fsb changes. I had no luck (but truthfully, it was mostly a crap shoot). I was able to boot into windows with a few tries, but launching Prime95 went right into BSOD...I guess that's what I can expect when just throwin some values in.

Not to move off topic, but any tips or anything for overclocking? maybe some very basic mild overclock settings/strategy? OC is going to take some reading for me to do correctly I think.

Thanks!

JP

[Guijs]

Hello,

I also have 8GB of F2-8500CL5D-4GBPK and Asus P5Q Pro Turbo, but can't make it work with 4 sticks, only with 2 @1066. I have tried 800 and 1066 with 8gb but no luck.

Did you find a solution?

Thanks!