X48 Rampage Formula Preview.

[Alien Grey]

There is an other page as well where this info is shown., will update from home.

Well iam on 180W.. and abouts 100amps..according to the reading. will post a picture later on from home.

The info iam taking the reading from is under Everest main page.
Computer -> Sensor.

It shows the same values.

Idle I get 8.67A and 9.75W under full load with LinX I get 76.48A and 85.80W.

[Fritz_the_germ]

Yo Alien Grey,
thank you for the LinX link.
I ran 20 loops LinX "all" without errors with these settings:

BIOS@0902-Settings of the Maximus@Rampage
CPU Feature

Ai Overclock Tuner [Manual]
OC from CPU Level Up [Auto]
CPU Ratio Control [Manual]
Ratio CMOS Setting: [9]

FSB Frequency [450]
FSB Strap to North Bridge [400]
PCIE Frequency [100]

RAM
DRAM Settings [Manual]
DRAM Frequency [1.200MHz]
DRAM Command Rate [2T]
DRAM Timing Control [Manual]
DRAM CMD Skew on Channel A [Auto]
DRAM CMD Skew on Channel B [Auto]
DRAM Clock Skew on Channel A [advanced 250ps]
DRAM Clock Skew on Channel B [advanced 300ps]

CAS# Latency [5]
RAS# to CAS Delay [5]
RAS# Precharge [5]
RAS# Active Time [15]
RAS# to Ras# Delay [Auto]
Row Refresh Cycle Time [Auto]
Write Recovery Time [Auto]
Read to Precharge Time [Auto]
Read to Write Delay (S/D) [Auto]
Write to Read Delay (S) [Auto]
Write to Read Delay (D) [Auto]
Read to Read Delay (S) [Auto]
Read to Read Delay (D) [Auto]
Write to Write Delay(S) [Auto]
Write to Write Delay (D) [Auto]

DRAM Static Read Control [Enabled]
Ai Clock Twister [moderate]
Transaction Booster [Manual]
Common Performance-Level [6]
Pull-In CHA PH1 [deaktiviert]
Pull-In CHA PH2 [deaktiviert]
Pull-In CHA PH3 [deaktiviert]
Pull-In CHB PH1 [deaktiviert]
Pull-In CHB PH2 [deaktiviert]
Pull-In CHB PH3 [deaktiviert]

Voltage Settings
CPU Voltage [1,30625V]
CPU PLL Voltage [1,54V]
North Bridge Voltage [1,33V=1,35V real]
DRAM Voltage [1,80V=1,89V real]
FSB Termination Voltage [1,24V=1,16Vreal]
South Bridge Voltage [1,05V]
Loadline Calibration [Enabled]

CPU GTL Reference [0,63x]
North Bridge GTL Reference [0.67x]
DDR2 Channel A REF Voltage [Auto]
DDR2 Channel B REF Voltage [Auto]
DDR2 Controller REF Voltage [Auto]
SB 1.5V Voltage [Auto]
CPU Clock Skew [Delay 100ps]
NB Clock Skew [normal]



The highest temp on both cores was 79°C which made me a little shaky.

Cetero censeo:
I can´t get my system stable at a memory speed faster than 1,200 MHz.
No matter what I do

[Alien Grey]

Cetero censeo:
I can´t get my system stable at a memory speed faster than 1,200 MHz.
No matter what I do

It's a strange problem. Everything runs stable with DDR1200MHz. When you try to change the DDR speed you can't have it stable anymore although the memory seems to be 100% stable.

What happens when you don't advance the DRAM CLK Skew on Channel A/B?

[Fritz_the_germ]

I haven´t tried LinX without advancing channel A/B.
But I know for sure that I´ll receive a funny DIMM Clock Fine Delay about 1T on DIMM 1, 10T on DIMM 2, 1T on DIMM 3, 10T on DIMM 4.
That seems to be a very screwed up timing.
I set 300 ps advanced on channel B and just 250 ps on channel A because the lines of channel B are a little longer so I fell like making it even. Got me?

[Alien Grey]

I haven´t tried LinX without advancing channel A/B.
But I know for sure that I´ll receive a funny DIMM Clock Fine Delay about 1T on DIMM 1, 10T on DIMM 2, 1T on DIMM 3, 10T on DIMM 4.
That seems to be a very screwed up timing.
I set 300 ps advanced on channel B and just 250 ps on channel A because the lines of channel B are a little longer so I fell like making it even. Got me?

It's funny that it works for you. If I try to change one of the DRAM CLK Skews I get "red alerts" in ASUS PC Probe II.

[neo_rtr]

It shows the same values.

Idle I get 8.67A and 9.75W under full load with LinX I get 76.48A and 85.80W.

I have the following values depending of the test
Current Value.:103,53A.....106,76A....102,49A...
Power Value...:145,91W....150,29W...144,45W...
But i have seen 180W and 125A at least..

[Alien Grey]

I have the following values depending of the test
Current Value.:103,53A.....106,76A....102,49A...
Power Value...:145,91W....150,29W...144,45W...
But i have seen 180W and 125A at least..

Do your mosfets get hot?

[neo_rtr]

Do your mosfets get hot?

The mosfets are watercooled as well
no problem

[Alien Grey]

The mosfets are watercooled as well
no problem

Difficult to know then if your CPU takes a lot of watts.

[greg.m]

Well here is what my cpu "eats" during prime95small and some benches. Until now these settings are prime95small and memtest error free. Ill try to lower my volts a little.

[neo_rtr]

Its about the same.. so its safe to assune that this is about normal usage..
tks greg.

[Alien Grey]

Its about the same.. so its safe to assune that this is about normal usage..
tks greg.

I think it is. Yours needs more watt for the speed you are running it and greg.m's CPU is higher clocked.

I'm happy with my 85.80 Watt.

[Alien Grey]

@greg.m

What BIOS version are using for your FSB 480MHz?

[greg.m]

@greg.m

What BIOS version are using for your FSB 480MHz?

0803 with 0902 icouldnt get my system stable

[Alien Grey]

0803 with 0902 icouldnt get my system stable

I'm not surprised that it's BIOS 0803. I would have been surprised if it was 0902.

Everyone is waiting for the answer from ASUS about the stability problems with 0902. Most users are scared to use this BIOS because of the problems that we're having with it.

BIOS 0902 isn't better than BIOS 0803. Most users take my advice and who doesn't need this BIOS for some reason stays with BIOS 0803.

I think that the problem is the CPU and NB Clock Skew. But I'm not realy sure because with BIOS 0803 I have the same problems to get my system stable if I'm trying to run it at 8 X 465MHz.

Why it was stable at 8 X 465MHz and my OCZ Reaper HPC PC2-8500@DDR1117MHz and not with the G.SKILL F2-9600CL5D-4GBPI is something I don't understand.

With every speed that I tested the G.SKILL F2-9600CL5D-4GBPI the memory was stable but it fails LinX.

Maybe the G.SKILL F2-9600CL5D-4GBPI puts more strain on the NB than my OCZ Reaper HPC PC2-8500 did and that fine tuning the skews would make these stability problems go away.

[Armored_Kech1]

I'm not surprised that it's BIOS 0803. I would have been surprised if it was 0902.

Everyone is waiting for the answer from ASUS about the stability problems with 0902. Most users are scared to use this BIOS because of the problems that we're having with it.

BIOS 0902 isn't better than BIOS 0803. Most users take my advice and who doesn't need this BIOS for some reason stays with BIOS 0803.

I think that the problem is the CPU and NB Clock Skew. But I'm not realy sure because with BIOS 0803 I have the same problems to get my system stable if I'm trying to run it at 8 X 465MHz.

Why it was stable at 8 X 465MHz and my OCZ Reaper HPC PC2-8500@DDR1117MHz and not with the G.SKILL F2-9600CL5D-4GBPI is something I don't understand.

With every speed that I tested the G.SKILL F2-9600CL5D-4GBPI the memory was stable but it fails LinX.

Maybe the G.SKILL F2-9600CL5D-4GBPI puts more strain on the NB than my OCZ Reaper HPC PC2-8500 did and that fine tuning the skews would make these stability problems go away.

Did you compare all the sub timings of each RAM kit in memset?

[Alien Grey]

Did you compare all the sub timings of each RAM kit in memset?

No and I can't anymore because I sold that memory to a friend. What I do know is that tRFC is at 52T with the G.SKILL F2-9600CL5D-4GBPI and at 54T for the OCZ Reaper HPC PC2-8500.

There might be more sub timings different between these 2 kits but I don't know it.

The G.SKILL F2-9600CL5D-4GBPI is always stable so there can't be very much difference in sub timings.

I don't think that the these stability problems in LinX are made by the memory. The only problem that I see is the skews. I think that steps of 100ps are to large for this board. With only a difference of 100ps between the CPU and NB Clock Skew there is not much you can do. You can delay the CPU Clock Skew 100ps more or you can keep them equal.

I see that Gigabyte boards have steps of 50ps. I don't know if there are any ASUS boards that have steps of 50ps.

There is also tREF. It has no huge impact on stability. That is true but starting a refresh every 3120T with 2 X 2 Giga DDR 1200MHz or more seems a bit to much for me.

[m4gg0t]

Hey A-Grey do you think that the OCZ Blade PC2-8500 would help my overclocking problems?

[Alien Grey]

Hey A-Grey do you think that the OCZ Blade PC2-8500 would help my overclocking problems?

It's very good memory that is cheaper than the G.SKILL F2-9600CL5D-4GBPI.

Here's a thread about this memory. http://www.xtremesystems.org/forums/...d.php?t=223507

It's worth a try for the price that this memory costs.

[m4gg0t]

I'm going to try and get these memorys then. Wish me luck.

[Alien Grey]

I'm going to try and get these memorys then. Wish me luck.

They seem to be good. Unfortunatly they aren't tested on an Intel Chipset.

[m4gg0t]

well they say that they do better on intel boards and they were made for intel boards.

[m4gg0t]

I just saw this on OCZ website the OCZ Blade PC2-9600 Low Voltage. http://www.ocztechnology.com/product...e_blade_series

[Alien Grey]

I just saw this on OCZ website the OCZ Blade PC2-9600 Low Voltage. http://www.ocztechnology.com/product...e_blade_series

When they really can do DDR 1200MHz at 1.80V that's the kit you want.
I don't see them anywhere available at the moment. I would like to know what that kit costs.

[Ghostleader]

They look promising but do they like to run on the RF.

Prize according to Fudzilla

"If all of these kits are like the one tested, these are some mean overclockers. The kits are both listed at OCZ's website and the 4GB DDR2-1066 XTC Platinum LV kit can be found here, while the 4GB Blade Series LV is here. Both kits are selling at German Alternate.de where the XTC Platinum sells for €63,90 and the fancy Blade heatsinks are a bit more expensive as it sells for €74,90."

Read the rest of the article here.

Tony over at OCZ have tested them on a AMD system though, read it here, start at post 4