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G-Man

Bios settings for 2 x 512 Winbond UTT

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Hi,

Got my RDX200 all setup and its been trouble free so far. Got my opteron running 2800 no problem. However, I have been trying to take my RAM settings off AUTO settings but am not have any luck.

I know the RAM is good for 240 at 11,2,2,2 at 3.3 volts as I ran this on my Nforce 2 fine, however I just can't get it error free. The settings I am using are:

command per clock AUTO
CAS Latency 2
TRAS 5
TRP 2
TRCD 2
TRRD 2
TRC 8
TRFC 24
TRWT 1
TWCL 1
TREF 3120
TWTR 1
TWR 2
Read preamble 5.5ns
Async latency 7
R/W Queue bypass 8
Dynamic counter Enabled
Idle Cycle Limit 256
Bypass Max 7
DRAM Drive strength normal
DQS skew value 0
VDIMM 3.3
DRAM bank interleaving enabled
32 byte granularity AUTO (what is this? just left it as auto)

With all settings on AUTO, the ram is error free up to 260 mhz, but as soon as I adjust the timings it errors. Can someone reccomend some settings that will get my RAM stable?

Thanks

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The auto timings at 255 1:1 are:

cas Latency 2.5
trc 11
trfc 24
trcd 3
trrd 2
tras 8
trp 3
twr 3
twtr 2
trtw 4
tref 200mhz 3.9us

read write queue bypass 8x
controller mode 128
ecc mode disabled
2t timing disabled
bypass max 4x
max async latency 7
read preamble 5.0ns
idle cycle limit 16 clks
dynamic idle cycle counter enable

all mem clk set to enable

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3700+ Sandiego 24hr stable Prime95 @ 2800MHz MAX Temp 45Deg Cel not Faren.
FSB Bus Frequency...................................... - 255
LDT/FSB Frequency Ratio............................. - 4
CPU/FSB Frequency Ratio............................. - 14
CPU VID StartUp Value................................ - 1.55
CPU VID Control......................................... - 1.55v
CPU VID Special Control.............................. - 114.4%
DRAM Voltage Control................................. - 2.99v
SB PCIE.............................................. ...... - 1.90v
NB A Voltage........................................... ... - 1.5v
LDT BUS Voltage ....................................... - 1.50v
NB C Voltage........................................... ... - 1.5
DRAM Frequency Set................................... - 166=RAM/FSB:05/06 (MEM 200.3MHz)
Command Per Clock (CPC)........................... - Enabled
CAS Latency Control (Tcl)............................ - 2.5
RAS# to CAS# delay (Trcd).......................... - 03 Bus Clocks
Min RAS# active time (Tras)........................ - 07 Bus Clocks
Row precharge time (Trp)............................ - 03 Bus Clocks
Row Cycle time (Trc)................................... - 10 Bus Clocks
Row refresh cyc time (Trfc).......................... - 12 Bus Clocks
Row to Row delay (Trrd).............................. - 01 Bus Clocks
Write recovery time (Twr)............................ - 02 Bus Clocks
Write to Read delay (Twtr).......................... - 01 Bus Clocks
Read to Write delay (Trwt).......................... - 02 Bus Clocks
Refresh Period (Tref).................................. - 1168= 166mhz(7.8us)
DRAM Bank Interleave................................ - Enabled
DQS Skew Control...................................... - Increase Skew
DQS Skew Value........................................ - 255
DRAM Drive Strength.................................. - 15
DRAM Data Drive Strength........................... - 4
Max Async Latency..................................... - 6
Read Preamble Time................................... - 3
IdleCycle Limit........................................... - 16 Cycles
Dynamic Counter........................................ - Enabled
R/W Queue Bypass..................................... - 16 x
Bypass Max............................................... - 06 x
32 Byte Granularity..................................... -Disabled (8burst)

Ram can do 225Mhz (crap I know) but Seems laggy seems timings really make a difference on the platform IMO anyway. Same ram does 290Mhz on intel setup.
As you can can in sig what the ram is I beleave its similar to the UTT stuff.
Hope this helps.

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