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why only x-3-x-x?


Gipse

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Hi,

so finally I finished my first a64-system (see signature) :nod: .

But I have really big problems with my ram to get them memtest-stable @ 2-2-2-x, even on fsb 200 and 3.2v in yellow slots.

On my old nf2-system :rolleyes: these modules were good for 2-2-2-11 @ 3.3v.

I´ve read the sticky about a64-overclocking, took me long time with my dictionary...

Tried various bios-versions without success :confused: .

The ram is cooled by a 90mm Papst cooler, so I don´t think it´s because of temperature.

Can you guys help me? (Please try to answer in a "simple" language)

Thanks!

Gipse

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Hi,

I flashed first via the mini-image to 5-10-2 fix (no idea why I got the "disk not ready" message). Then I flashed via winflash (I have no fdd) to the current bios. I´ve also read the sticky about bios-flashing :) .

The Levicom is a 20/24-pin-PSU, they use the same "option" like my OCZ.

At the moment the ram is stable @ 2-3-2-8 @ 3.2v @ 240.

Any ideas?

Thanks!

Gipse

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Hi,

I switched the modules and I´m now stable @ 241 @ 2-2-2-6 @ 3.2v :nod: .

I think for more fsb I need more juice or different settings in the bios. What kind of setting would you suggest for this kind of Ram? Don´t want to try the 4v option, heard strange details about it...

Thanks for your help :) .

Gipse

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Hi,

I switched the modules and I´m now stable @ 241 @ 2-2-2-6 @ 3.2v :nod: .

I think for more fsb I need more juice or different settings in the bios. What kind of setting would you suggest for this kind of Ram? Don´t want to try the 4v option, heard strange details about it...

Thanks for your help :) .

Gipse

 

Bios Settings :

 

 

 

Dram Frequency Set (MHz) : 200(DRAM/FSB:1/01)

Command Per Clock (CPC) : Enabled

CAS Latency Control (Tcl) : 2.0

RAS# to CAS# Delay (Trcd) : 02

Min RAS# active time (Tras) : 05

Row Precharge Time (Trp) : 02

Row Cycle Time (Trc) : 07

Row Refresh cyc time (Trfc) : 16

Row to Row delay (Trrd) : 02

Write Recovery Time (Twr) : 02

Write to Read delay (twtr) : 02

Read to Write delay (Trwt) : 02

Refresh Period (Tref) : 3120

Write CAS Latency (Twcl) : 01 Bus Clock

DRAM Bank Interleave : Enabled

 

DQS Skew Control : Auto

DQS Skew Value : 0

DRAM Drive Strength : 8 (try 2 4 6 8)

DRAM Data Strength : 2 (try 1 or 2)

Max Async Latency : 07.0 Nano Seconds

DRAM Response Time : Normal

Read Preamble Time : 05.0 Nano Seconds

IdleCycle Limit : 16 Cycles (lower if not stable)

Dynamic Counter : Disable

R/W Queue Bypass : 16x

Bypass Max : 07x

32 Byte Granularity : Disable (4 burst)

 

i've been using the 4v jumper since day one for both my boards and had no problems with it..

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try playing around with drive strength.. see which one gives u the least error.. then try data strength.. same thing

 

lower the mhz a bit.. probably too tight for 3.2v

 

and how is your 3.3v rail holding under load? it might be one of the problem as well if u're running 3.2v on the 3.3v rail

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