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[Solved] DFI LP DK T3eH6 shows 3F with 4+ DIMMs populated

FordGT90Concept

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I remember it doing this when I first got it. I think one of the channels has an issue. Is there any way I can resolve it?

DIMM2: OCZ 2 GiB
DIMM1: Kingston 4 GiB

DIMM4: OCZ 2 GiB
DIMM3: Kingston 4 GiB

DIMM6: OCZ 2 GiB
DIMM5: Kingston 4 GiB

Manual doesn't even say if that is correct or not. OCZ sticks were there for years; Kingston sticks are new.


Edit: With the POST Logo off (after resetting CMOS), it shows Main Processor and then stops. The memory is definitely causing the issue but is there a solution except leaving that channel unpopulated?


Edit: Jump to solution!
 
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I would simply guess it is due to mixed memory on such a notorious manufacturer for being super picky with RAM in the first place.
 

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No, I'm about to do that though. Just Kingston in 1 3 5 = not even a POST beep, code CF.
 
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DFI was always an awesome board..until their end. HOwever they are super picky about RAM. So you will probably have to go in and manually set all timings to match. First find the set that is slower and clock down the faster set to match all timings 100% for max stability. For better performance, but unknown stability you can try setting timings of the slower to the speed of the faster...Not the Mhz of the Ram but all the timings. GL!
 

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Kingston in 2 4 6 works fine (12 GiB discovered). Computer booted to Windows without issues.

OCZ sticks are PC3-12800 8-8-8 @ 1.65v (OCZ3G1600LV6GK)

Kingston sticks are DDR3-1066 CL7-7-7 @1.5V (HX316C10FB/4)
 
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Yup..different timings is your problem. Get the OCZ running at the exact timings the Kingstons are, then install the kingstons. The difference voltages could also be an issue. Since you are relaxing the timings on the OCZ you may be able to undervolt them.
 

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Will the OCZ sticks be reliable at 1066 and 1.5v? The link for Kingston says 1.425V ~ 1.575V so they can't go anywhere close to OCZs. :(


Edit: Are my thoughts correct here...
Base Clock: 133 MHz (CPU is * 20 for 2666 MHz)
DRAM frequency: Base Clock * 8 (1064 MHz)
Command Rate: 1N
tCL: 7
tRCD: 7
tRP: 7
tRAS: 21
Voltage: 1.5v

It seems to be working with the Kingston sticks but I'm weary of sticking the OCZs in...
 
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CPU-Z says FSB:DRAM is 2:8 which results in a DRAM Frequency of 533.4 MHz. That doesn't sound right...what did I do wrong? :(

My goal is DDR3-1066 which is what the CPU should default to.


Edit: Forgot, Double Data Rate. So does everything look good? Try to stick the OCZs in?
 

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Remember as well that 6 DIMMS will stress the IMC, so it may take more volts to it or the core to get it to run.

to answer the above statement, that is how I would try it.
 
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CPU-Z says FSB:DRAM is 2:8 which results in a DRAM Frequency of 533.4 MHz. That doesn't sound right...what did I do wrong? :(

Edit: Forgot, Double Data Rate. So does everything look good? Try to stick the OCZs in?

IF you have matching timings and volts you should be good to go.
 

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I changed nothing in the BIOS and moved the Kingston sticks over a slot (DIMM2 -> DIMM1, DIMM4 -> DIMM3, DIMM6 -> DIMM5) and it has CF on the motherboard LED and the power light is flashing on and off constantly. Is there something else in DRAM config that could fix this? What could cause Channel 1 to freak out and Channel 2 to be okay?


Edit: OCZ sticks seem to be holding 7-7-7-21 @ 1.5v but in DIMM2, DIMM4, DIMM6. I'll try moving them to 1 3 5 but I suspect the same result as above.
 
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http://lp.dfi.com/Upload/Manual/CM/DKX58T3eH6e0.pdf

says there:
Note:
• When installing 3 modules, install in DIMM1, DIMM3 and DIMM5. The system will not boot when a module is installed in DIMM2, DIMM4 or DIMM6.
• When 4 memory modules of different capacities and chips are installed, the system memory is able to operate in triple “Intel Flex Memory Mode” and works in 2N mode.

Doesn't say anything special about using 6, but I would venture to say 2N is likely recommended. It does however show that single sided and double sided ram should be able to go in all six slots.

One more edit:
I would look in advanced memory settings and see if there isnt something like channel A,B, and C timings, or something else that might have things kept too tight to allow all this to happen.
 

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OCZ in DIMM1, 3, 5 does the same as Kingston (CF, HDD light stays solid for a while then goes off, power LED is constantly flashing).

I know I set it to 1N so I'll make sure to change that.

There's soooooo many options about channels in there, I don't know where to begin. :(

All six sticks are double-sided.
 
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Here's what I got...

DRAM Timing
Channel Interleaving Setting: Auto
Rank Interleaving Setting: Auto
Memory LowGap: 1536M

DRAM Command Rate: 2N (Auto)
tCL: 7 (Auto)
tRCD: 7 (Auto)
tRP: 7 (Auto)
tRAS: 21 (Auto)
tRFC: Auto
tWR: Auto
tWTR: Auto
tRRD: Auto
tRC: Auto
tRTP: Auto
tFAW: Auto
Ch1 Round Trip Latency: Auto
Ch2 Round Trip Latency: Auto
Ch3 Round Trip Latency: Auto (+16)
tREFI: Auto

Voltage Setting
DRAM Bus Voltage: 1.500v (Auto)
DRAM PWM Switch Frequency: Nominal Frequency
DRAM PWM Phase Control: 2 PhaseOperation

DIMM 1/2 DQ/DQSTB Bus VREF -00.0%
DIMM 3/4 DQ/DQSTB Bus VREF -00.0%
DIMM 5/6 DQ/DQSTB Bus VREF -00.0%
DIMM 1/2 ADDR/CMD Bus VREF -00.0%
DIMM 3/4 ADDR/CMD Bus VREF -00.0%
DIMM 5/6 ADDR/CMD Bus VREF -00.0%
CPU Core DQ/DQSTB Bus VREF -00.0%
 
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sorry man, been way too long since I had a DFI to remember what all it takes to get there. One thing I will say is clearing the CMOS or removing the battery and pushing the power button (of course without PSU power connected, but had to say it) may at least get it back to normal so you can start this march all over again.
 

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I put in parenthesis what clearing CMOS does so you can clearly see what I changed.

What's really odd is "When installing 3 modules, install in DIMM1, DIMM3 and DIMM5. The system will not boot when a module is installed in DIMM2, DIMM4 or DIMM6." is backwards. They've only ever worked in 2 4 6, never 1 3 5.

Edit: One mystery solved! On the motherboard, it says:
DDR2
DDR1
DDR4
DDR3
DDR6
DDR5

So what I've been trying for the past hour was never meant to work (CF, flashing power light = nothing in DIMM1, 3, 5). So now we're back to just the 3F error. I tried peddling back from 6 sticks (2 1 4 3 6 5), to 5 sticks (2 1 4 3 5) , to 4 sticks (2 1 3 5) and it would only complete POST when I did 3 sticks (1 3 5). So how do I get 2 4 6 to wake up?
 
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Are the ocz's single sided or double sided sticks? honestly trying to mix much older memory tech with newer stuff seems like your issue to me, it will work with one or the other not both despite the timings and voltage adjustments seems to point to a hardware incompatibility. if i were you i would just stick with the kingstons and call it a day, 12gb triple channel is still a crap ton of memory and memory bandwidth to boot.

as far as dimm population goes the labels seem backwards, you should be using the green slots first and yellow slots second
 

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Both OCZ and Kingston sticks can hold DDR3-1066 T2 CL7-7-7-21 @ 1.5v when in DIMM 1 3 5. It's when I put anything in 2, it freaks out giving 3F.
 
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Both OCZ and Kingston sticks can hold DDR3-1066 T2 CL7-7-7-21 @ 1.5v when in DIMM 1 3 5. It's when I put anything in 2, it freaks out giving 3F.


set those timings and mix the ram then two kingstons and one ocz stick, if it boots it rules out the incompatibility issue. also this may sound trivial but have you tried shooting the sockets with some canned air? and/or the same with the cpu socket / reseating the cpu
 
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You will probably need to run a memory tool to get all of the timings. Then set those in BIOS. I do not think using AUTO and mixing memory is going to work out.
 

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Video Card(s) AMD Radeon RX 7900 XT
Storage Samsung 980 Pro, Seagate Exos X20 TB 7200 RPM
Display(s) Nixeus NX-EDG274K (3840x2160@144 DP) + Samsung SyncMaster 906BW (1440x900@60 HDMI-DVI)
Case Coolermaster HAF 932 w/ USB 3.0 5.25" bay + USB 3.2 (A+C) 3.5" bay
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Power Supply Enermax Platimax 850w
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Software Windows 10 Home 64-bit
Benchmark Scores Faster than the tortoise; slower than the hare.
set those timings and mix the ram then two kingstons and one ocz stick, if it boots it rules out the incompatibility issue.
Did this (4+4+2), 10 GiB registered and the only change I see in CPU-Z is tRFC jumped from 59 to 139 clocks.

also this may sound trivial but have you tried shooting the sockets with some canned air?
Yup.

and/or the same with the cpu socket / reseating the cpu
Nope but the system has been stable for over 5 years so it seems kind of remote that doing so would solve anything. FYI, it is passively cooled right now, running BOINC, and staying under 80C.


You will probably need to run a memory tool to get all of the timings. Then set those in BIOS. I do not think using AUTO and mixing memory is going to work out.
I have most set so which other ones would be trouble?
 
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Did this (4+4+2), 10 GiB registered and the only change I see in CPU-Z is tRFC jumped from 59 to 139 clocks.


Yup.


Nope but the system has been stable for over 5 years so it seems kind of remote that doing so would solve anything. FYI, it is passively cooled right now, running BOINC, and staying under 80C.



I have most set so which other ones would be trouble?


you'd actually be surprised how re-seating a processor in its socket/dusting the socket actually does fix some of those weirder problems. when you finish your work unit i'd recommend trying it out just for the sake of saying you tried it even if the cooler is passive there is still airflow around the cooler/socket and dust build up is a very real thing with micro currents from natural convection. if it doesnt work you can probably safely assume that its due to trace wear and you just have a bad dimm socket on your board. if you come to that conclusion try populating the other dimm slots and see if the IMC will play nice and ignore that bum slot and not cry on boot up
 

FordGT90Concept

"I go fast!1!11!1!"
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Benchmark Scores Faster than the tortoise; slower than the hare.
The whole computer was blown out earlier today. There was so much dust between fan and heat sink the fan wasn't doing any good. I couldn't let that slide. XD


if you come to that conclusion try populating the other dimm slots and see if the IMC will play nice and ignore that bum slot and not cry on boot up
I'll try skipping 2. Mobo probably won't like it but it won't hurt anything. Everytime I tried, there was something in there.


Here's what I'm trying now:

DRAM Timing
Channel Interleaving Setting: Auto
Rank Interleaving Setting: Auto
Memory LowGap: 1536M

DRAM Command Rate: 2N (Auto)
tCL: 7 (Auto)
tRCD: 7 (Auto)
tRP: 7 (Auto)
tRAS: 21 (Auto)
tRFC: 139 (Auto)
tWR: Auto
tWTR: Auto
tRRD: Auto
tRC: Auto
tRTP: Auto
tFAW: Auto
Ch1 Round Trip Latency: Auto
Ch2 Round Trip Latency: +8 (Auto)
Ch3 Round Trip Latency: +16
tREFI: Auto

Voltage Setting
DRAM Bus Voltage: 1.500v (Auto)
DRAM PWM Switch Frequency: Nominal Frequency
DRAM PWM Phase Control: 2 Phase Operation

DIMM 1/2 DQ/DQSTB Bus VREF -00.0%
DIMM 3/4 DQ/DQSTB Bus VREF -00.0%
DIMM 5/6 DQ/DQSTB Bus VREF -00.0%
DIMM 1/2 ADDR/CMD Bus VREF -00.0%
DIMM 3/4 ADDR/CMD Bus VREF -00.0%
DIMM 5/6 ADDR/CMD Bus VREF -00.0%
CPU Core DQ/DQSTB Bus VREF -00.0%
 

FordGT90Concept

"I go fast!1!11!1!"
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Memory 2 x Kingston HyperX DDR4-3200 32 GiB
Video Card(s) AMD Radeon RX 7900 XT
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Power Supply Enermax Platimax 850w
Mouse Nixeus REVEL-X
Keyboard Tesoro Excalibur
Software Windows 10 Home 64-bit
Benchmark Scores Faster than the tortoise; slower than the hare.
The above is no dice. Also tried:
1 2 3 5
1 3 4 5
1 3 5 6
All halted at 3F.

Any other options? The last resort is removing the HSF.
 
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