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Memory only stable at 3.2V?


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I know there are some known difficulties between DFI and memory, but I am a little concerned about how far these difficulties may reach:

my memory (type number M2G9OA8ATT9G081CAD) sits in slots 2 and 4, and works in Dual Channel mode, 1T, 2.5-3-3-8

Normally, everything works fine. Prime95, 3dmark05, memtest 86+ (from BIOS), nothing gives problems.

However, whenever I start a game (Half-Life 2 for example) the PC freezes.

 

After reading up on dfi-street I increased the voltage of the RAM, but only at 3.2V would it run stable. That sounds nothing like the 2.7/2.8 I've read about.

 

Is there a special condition with this TwinMOS memory, should I fiddle with the timings, is the board faulty, etc.?

 

BTW: Board's BIOS is up to date (23/06/2005) and Windows is fully patched. Other specs: see sig.

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Setting: / BIOS: / Everest:

 

MHz / Auto / 200

CPC / Auto / ?

Tcl / Auto / 2.5T

Trcd / Auto / 3T

Tras / Auto / 8T

Trp / Auto / 3T

Trc / 07 Bus Clocks / 7T

Trfc / Auto / 14T

Trrd / 02 Bus Clocks / 2T

Twr / 02 Bus Clocks / 2T

Twtr / 02 Bus Clocks / 2T

Trtw / 03 Bus Clocks / 3T

Tref / 3120 Cycles / 200MHz 15.6 us

Twcl / Auto / 1T

 

DRAM Bank Interleave / Enabled / ?

DQS Skew Control / Auto / Disabled

DQS Skew Value / 0 / -

DRAM Drive Strength / Auto / Weak

DRAM Data Drive Strength / Auto / 1 (50% Reduction)

Max Async Latency / Auto / 6 ns

DRAM Response Time / Normal / ?

Read Preamble Time / Auto / 5.5 ns

IdleCycle Limit / 256 Cycles / 256

Dynamic Counter / Disable / Disabled

R/W Queue Bypass / 16x / 16

Bypass Max / 07x / 7

32 Byte Granularity / Disable (4 bursts) / Disabled

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Setting: / BIOS: / Everest:

 

MHz / Auto / 200

CPC / Auto / ?

Tcl / Auto / 2.5T

Trcd / Auto / 3T

Tras / Auto / 8T

Trp / Auto / 3T

Trc / 07 Bus Clocks / 7T 9

Trfc / Auto / 14T 16

Trrd / 02 Bus Clocks / 2T 3

Twr / 02 Bus Clocks / 2T 3

Twtr / 02 Bus Clocks / 2T

Trtw / 03 Bus Clocks / 3T

Tref / 3120 Cycles / 200MHz 15.6 us

Twcl / Auto / 1T

 

DRAM Bank Interleave / Enabled / ?

DQS Skew Control / Auto / Disabled

DQS Skew Value / 0 / -

DRAM Drive Strength / Auto / Weak weak? try 5,6,7,8 and memtest.. see which gives less errors

DRAM Data Drive Strength / Auto / 1 (50% Reduction)

Max Async Latency / Auto / 6 ns 7

DRAM Response Time / Normal / ?

Read Preamble Time / Auto / 5.5 ns

IdleCycle Limit / 256 Cycles / 256

Dynamic Counter / Disable / Disabled

R/W Queue Bypass / 16x / 16

Bypass Max / 07x / 7

32 Byte Granularity / Disable (4 bursts) / Disabled

 

 

You can try some of the changes I made in bold.. The problem is I dont think ive seen anyone with that ram so its hard to know where to start.. But I would change those things and let us know how you make out..

 

I dont think you should need to pump that much vdimm into them.. Most 1gig sticks work with low voltage..

 

EDIT..

If this doesnt work then maybe you should shoot an email to twinmos and ask them if they have recommended timings for the DFI NF4 that you could try..

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