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Cannot run OCZ PC4000 Gold GX XTC 2GB at SPD...

post #1 of 40
Thread Starter 
I have been having problems getting my OCZ EL DDR PC-4000 Gold GX XTC 2GB Dual Channel to run at SPD timings on my Asus A8N-SLI Premium.

I had recently returned my OCZ PC3500 ram because it was making my computer restart and it wasn’t stable at SPD timings of 217mhz, and this does the same unless it runs far below SPD timings.

My system is only stable when I leave everything on “auto†and a cpu frequency of 200-223mhz and I pass Prime95 and MemTest.

I have even been so desperate as to loosen my timings as far as it could go, yet, I could still not achieve standard timings.

My memory sticks are installed on slots 1A and 1B, and it is recognized as dual channel. Is this wrong? It looks like this: CPU—1A-2A-1B-2B

I have tried using VDIMM of 2.7-2.9V but it has no effect.

I have also upgraded my BIOS with no avail.

It may also be good for those willing to help to check out my post at the OCZ forums --> http://www.bleedinedge.com/forum/sho...307#post161307




~These are my best settings I have been able to run stably at.. Yes, I have assigned the PC4000 Gold 2GB settings on http://www.bleedinedge.com/forum/showthread.php?t=15898 but I’ve only been able to get as far as a login to windows before it restarts.~

Dram Configuration:

Timing Mode: Manual
Memclock index value: 400 mhz
Cas latency (TCL) : 3
Min ras active time (TRAS) : 7
Ras to Cas delay (TRCD) : 4
Row precharge time (TRP) : 3
Row Cycle time (TRC) : 11
Row refresh cycle time (TRFC) :13
Read-to-write time (TRWT) : 2
Write recovery time (TWR) : 2
1T/2T memory timing : 1
S/W Dram over 4gb remapping : Disabled
H/W Dram over 4gb remapping : Disabled

Hyper transport frequency : 3
Amd K8 Cool'nQuiet : Disabled

Jumperfree Configuration:

Overclock profile: Manual
CPU frequency : 200-223
PCI Express : 100mhz
DDR voltage : 2.7-2.8
Chipset voltage : Max
HT voltage : Max
CPU multiplier : 9
CPU voltage : Auto
PCI clock syncronization mode : 33.33mhz
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post #2 of 40
Fill in your System Specs via the USER CP link @ top of page so we can better help you!
Did you try setting your RAMs HT to 4x or 3x?
    
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post #3 of 40
Quote:
Originally Posted by The Duke
Fill in your System Specs via the USER CP link @ top of page so we can better help you!
Did you try setting your RAMs HT to 4x or 3x?

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post #4 of 40
Thread Starter 
Yup, I was working on that Quick replies.

Yeah I had my hyper traansport at 3x. And I have also tested each stick individually with Prime95, can't stand 250mhz for 5 seconds. 10sec max.
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post #5 of 40
How sure are you it's the ram? Have you run a divider to see how high your cpu can go? I ask this because in the settings above you have cpu voltage on auto. Also have you tried the other slots or 2T? I'm not familiar with that psu, you may not be getting stable vdimm.
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post #6 of 40
you may need to run a 2T command rate w/ that board
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post #7 of 40
Thread Starter 
Quote:
Originally Posted by Urufu_Shinjiro
How sure are you it's the ram? Have you run a divider to see how high your cpu can go? I ask this because in the settings above you have cpu voltage on auto. Also have you tried the other slots or 2T? I'm not familiar with that psu, you may not be getting stable vdimm.
Yes, preiously I declocked my ram and did some seperate tests to find out that my cpu is stable at 2840mhz with 1.55V. Right now I am trying to figure out my memory so I am running my CPU divider at 8X and I am leaving my CPU voltage at auto because I don't know what voltage to give it at this low speed, and I don't know if giving it 1.55V at this low speed would damage it.

When I try my memory on slots A2 and B2 I get a lot of weird problems and instability. When I tried the sticks one at a time I used them on slot B1, as it says in the manual.

The PSU is 500W and I really don't know how stable it is either... My rails via bios seem fine. It is a possibility.
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post #8 of 40
Watch the vdimm, chip set, and mem control voltage up them only as far as necessary.
    
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post #9 of 40
Thread Starter 
Quote:
Originally Posted by soloz2
you may need to run a 2T command rate w/ that board
2T has NO effect... I have thoroughly tested that.

The 2T issue has been fixed in ASUS A8N-SLI Premium, the problem is with deluxe.
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Hard DriveHard DriveCoolingCooling
Samsung 830 128GB Western Digital WD2000KS 2TB Antec Kuhler 620 3X Xigmatek 120mm (UV), 1X Xigmatek 140mm (UV) 
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post #10 of 40
Thread Starter 
Quote:
Originally Posted by The Duke
Watch the vdimm, chip set, and mem control voltage up them only as far as necessary.
Well, as I said, my memory is (stangely) more stable at 2.6V instead of the labled 2.75V

My chipset voltage was increased from 1.5V to 1.6V(max), and my HT volatge was increased from 1.2V to 1.25V(max), but these have had no effect.
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CPUMotherboardGraphicsRAM
Intel i5-2500K @ 3.8GHz ASRock Z77E-ITX XFX Radeon HD 6950 2GB Kingston Hyper X 1600 RAM (2X4GB) 
Hard DriveHard DriveCoolingCooling
Samsung 830 128GB Western Digital WD2000KS 2TB Antec Kuhler 620 3X Xigmatek 120mm (UV), 1X Xigmatek 140mm (UV) 
OSMonitorMonitorKeyboard
Windows 7 Ultimate x64 Apple 23" Cinema Display HD (1) Apple 23" Cinema Display HD (2) Dell Black Kid 
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CPUMotherboardGraphicsRAM
Intel i5-2500K @ 3.8GHz ASRock Z77E-ITX XFX Radeon HD 6950 2GB Kingston Hyper X 1600 RAM (2X4GB) 
Hard DriveHard DriveCoolingCooling
Samsung 830 128GB Western Digital WD2000KS 2TB Antec Kuhler 620 3X Xigmatek 120mm (UV), 1X Xigmatek 140mm (UV) 
OSMonitorMonitorKeyboard
Windows 7 Ultimate x64 Apple 23" Cinema Display HD (1) Apple 23" Cinema Display HD (2) Dell Black Kid 
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