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vanibanez

Big weird issue

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I have a MAJOR issue. Its probably my own fault. I originally had 2x512mb Samsung ram in my orange slots on my DFI lanparty ultra-d.All was good in the world....

I decided to get 2x1gb samsungs on ebay. I got them in the orange slots now and placed my 2x512mb in the yellow slots. My big issue is that I can't get any decent speed at all. The new DDR400's won't even get to 400mhz. They black out anywhere above 200mhz. Have to clear the CMOS to get the pc back up.

 

When you check out the SPD tab all the RAM modules have the same specs. I have also tried some very loose timings and increasing the voltage but still nothing. I have also tried removing the 2x512's to see if it would make a difference but no good. I tried the 2x1gb in the yellow slots and still no good. I can't get the fsb above 100mhz(2x100=200mhz) at all.I have tried the fsb:dram and still no go. I can downclock easily but even getting to regular clock speed is a huge job . Does anyone have an idea (other then burning the RAM) as to how to even to get to 400mhz on the ram. The cpu overclock I can deal with later.

 

Here's what is on the ram chips themselves:

 

samsung 512mb

k4h560838-e TCCC 513

 

samsung 1GB:

k4h510438d-ZCCC 740

 

Then after I reseated the cpu(applied new grease) and blew out the case for dust the following happened:

 

I can get all of the sticks to work by themselves in the top orange slot but none work in dual channel or in any other slot. I can't see how blowing out the case could do something this drastic. But to make sure it wasn't that I reseated the cpu again and the temps are still fine.

 

I have ran memtest and all sticks are good. I also upgraded to the latest BIOS version. All of the ram seems to o/c well in that one slot. It seems the board may have a toasted slot but I don't know how it could. The big killer is that now I only run single channel at 64bit. Windows xp boot screen actually shows for about 6 seconds now as opposed to just a quick flash before. I have aready noticed degraded performance, Damn what a waste.

 

I have checked the old DFI street forums and there are some similarities to issues others have had but no one seemed to have an answer for any of them.

 

The diagnostic LED's on the board indicate that it has detected vga and is loading BIOS. Thats when it locks up with 2 sticks. Any thoughts?

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Hello,

 

Trying to run 2x512MB with 2x1GB will cause issues.

 

Do you have a Winchester core or Venice core CPU?

- Winchester can only run 2x1GB @2T.

- And if you use 4 modules it must be 333Mhz @2T.

 

 

Clear your CMOS for 10 minutes. (make sure you move the jumper back to the save position)

Place 1 512MB stick in the top orange slot.

 

Power the PC.

- Set the memory voltage to 2.7v

- Disable CPC

- Set the memory timings

 

GENIE BIOS Setting

>DRAM Configuration..................Press Enter = New Menu

FSB BUS Frequency....................200

LDT/FSB Frequency Ratio..............X 5.0

LDT BUS Transfer Width...............16 16

CPU/FSB Frequency Ratio..............X 9

PCI eXpress Frequency................100Mhz

K8 Cool 'n' Quiet Support............Disable

Cool 'n' Quiet MAX FID...............AUTO

CPU VID StartUp Value................AUTO

 

CPU VID Control......................AUTO

CPU VID Special Control..............AUTO

LDT Voltage Control..................1.20 V

Chip Set Voltage Control.............1.50 V

DRAM Voltage Control.................2.70 V

+0.3v if not 3.2v....................Disabled

 

Run MemTest86+.......................Disabled

 

GENIE BIOS Setting >DRAM Configuration

DRAM Frequency Set (MHZ).............200 (DRAM/FSB:1/01)

Command per clock (CPC)..............Disabled

Cas latency (tCL)....................3

RAS to CAS delay (tRCD)..............3

Min RAS active time (tRAS)...........8

Row precharge time (tRP).............3

Row cycle time (tRC).................11

Row refresh cycle time(tRFC).........14

Row to Row delay (tRRD)..............3

Write recovery time (tWR)............2

Write to read delay (tWTR)...........AUTO

Read to write delay (tRWT)...........AUTO

Refresh period (tREF)................1560

Write CAS latency (tWCL).............N/A

Odd Divisor Select...................Disabled

DRAM Bank Interleave.................Enabled

 

DQS Skew Control.....................Decrease

DQS Skew Value.......................0

DRAM Drive Strength..................AUTO

DRAM Data Drive Strength.............AUTO

Max Async Latency....................6ns

Dram Response........................Normal

Read Preamble Time...................5ns

Idle Cycle Limit.....................X16

Dynamic Counter......................Enabled

R/W Queue Bypass.....................AUTO

Bypass Max...........................AUTO

32 Byte Granularity..................Disabled (4 bursts)

 

- Save and Exit.

- Then turn off

- Remove PSU mains power cable.

- Insert the second 512MB module in the bottom orange slot.

- Power the PC.

 

What happens?

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Unfortunately, this was also a no-go. But thanks for the info, I am going to keep trying. If you have an idea of how to check the cpu's ram control and the MB's ram control. Let me know. Thanks.

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I have seen such issues, when people remove the IHS from the CPU and a few times bent pins cause the cpu to stop working in dual channel mode.

 

Very strange.

 

If you can, test the CPU in another pc or borrow another cpu.

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Not the exact same chips>bummer #1

 

DFI Ultra D, known to have problems with all slots populated....some boards will handle it just fine, most just throw a hissy fit

 

Some time back, before getting 2 gigs of the Gskill HZ stuffs (awesome), I tried to go with 4 sticks of matched 512meg, no way to get stable, even when lowering the ram to 333, 2t, whatever, so I have one of those boards that just won't do it....

 

you may be in the same boat, but until you get perfectly matched ram (same chipage) and give it a go, no won't know for sure...

 

laterzzzz......

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I did notice bent pins on one side of the cpu. But they were not bad. I strigtened them but still no go. I have a DFI infinity ultra on order right now. Hopefully that works.

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