RDX 200 winbond CH / UTT settings

[G-Man]

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 at any speed over 200. 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? My stable auto settings are as follows according to A64 tweaker:

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

Anyone know what might be making my RAM unstable?

thanks

[Crankybugga]

Have you adjusted your DRAM drive strenght?

edit: also bring your trfc into at least 16.

[G-Man]

No, not adjusted drive strength.

What should it be set too for 250 - 260 mhz?

thanks

[Crankybugga]

Im not sure, its experimental for ram ability, 1-7= weakest/strong for 2x dimms _ 8-15= strongest drive...needed to run 4x dimms. from memory 1/3/5/7 are weakest in that order for 2 x dimms, and strong for even numbers. I guess start at 3 and work your way up. gl

[deff_ins]

hmmm... will this work on dfi nf4 expert? im confused with expert's dram drive strenght and data strenght settings

[JasonDTM]

^^^ Most likely they might work, but the RDX200 might be a diffrent animal than the expert when it comes to memory.

-Edit

G-Man, what bios are you running by chance? Have you tried the latest?

[Dynasty]

For my VX and Redline on RDX-200,

I can do 260-270/3.42Vdimm in bios with these settings:

cas Latency 2
trc 7
trfc 15
trcd 2
trrd 2
tras 5
trp 2
twr 2
twtr 1
trtw 1
tref 200mhz 3.9us

read write queue bypass 8x
controller mode 128
ecc mode disabled
2t timing disabled
bypass max 4x
max async latency 6ns
read preamble 4.5ns
idle cycle limit 16 clks
dynamic idle cycle counter enable

[blowsion]

i can do 255 with those settings and am using mushkin pc 3500 bh5
deviders dont seems to work with the bh5

i guess bh5 just sucks on a rdx200

[Perc]

how does this mb respond to the tccd mem? verry interested in getting this mb but need to read more before i take the plunge. sooo any updates on your experiance with this mb? would like to see how your making out. so far its either this or that shapire mb.

thx perc,

[JasonDTM]

i can do 255 with those settings and am using mushkin pc 3500 bh5
deviders dont seems to work with the bh5

i guess bh5 just sucks on a rdx200

I wouldnt say that, its all trial and error, Here were the settings I used for my UTT-BH @ 250mhz aside fromt he base timings of "2-2-2-5"

TRC = 7
TRFC = 12
TRRD = 3
TWR = 3
TWTR = 1
TRWT = 2
Tref = 0648
TWCL = auto
DRAM DRIVE strenght = Level 3
DRAM DATA Drive (?) Strenght = Level 1
Max Asynch Latency = 7ns
Read Preamble = 5ns
Idle Cycle Limit = 256clks
R/W Bypass 16x
Bypass max = 7x

[blowsion]

i believe those crucial sticks will do fine