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Problems Booting - RAM Issue (Corsair XMS 2-3-3-6 Platinum)


r00723r0

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Hi, I'm having problems booting. My specs are in my profile (I think). I get continuous long beeps, and my POST code is 04, which is a memory error. I have 2 sticks and I tried both and one in every single possible combination of slots. I even got a new pair of the same type of sticks. NOTHING works. I just got a new board, in fact, and it STILL doesn't work. Perhaps the board and the sticks are incompatible? What could I be doing wrong?
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What is the exact part # and revision # of each stick? Is it a TwinX pack?

How To Read the Memory Label

 

Test one stick at a time in each slot using Memtest86+ and the following settings:

 

CAS Latency (tCL): 2

RAS to CAS Delay (tRCD): 3

Row Precharge (tRP): 3

Active to Precharge Delay (tRAS): 6

 

Memory Voltage: 2.75 Volts

All other settings to defaults.

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Normally the ram should work fine in the board.

 

Things you can do :

 

Try to boot with one stick of eg a friend. Get into bios raise DDR voltage ( default setting at 2.6 volts which is a bit low for Corsair ram 2.7-2.8 required to run stable).

 

Also the PSU is weak mate, it's 420 watts, I doubt the amperage at 12 volts is sufficient to power it all (single rail needs 24 amps minimum), you can unhook all optical drives and the older 3GB hard drive, to see if it will power up then. I suspect this because you already got another board and other dimms (would be exceptional that either one or both are dead on arrival)

 

Also verify that you hooked up all power connectors to the board, and that there are no shortcircuits with the case.

 

If you can get it to boot, raise the voltage liek mentioned and update the bios to 18 version ( this is till now the most stable version for the ABit motherboard, 19 again has issues )

 

Also the best settings for this ram ( I had them too ) is

 

CAS Latency (tCL): 2.5

RAS to CAS Delay (tRCD): 3

Row Precharge (tRP): 3

Active to Precharge Delay (tRAS): 7 (6 works also but 7-8 is the best overal value for Nforce4 chipsets)

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A few things.

 

1) I've tried a different power supply - 480w. Still doesn't work.

2) At another forum, they said it could be my watercooling. I'll try to put a stock heatsink fan on when I get home.

3) My computer doesn't even POST, so don't tell me to change BIOS settings :/

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  • Corsair Employees
If the system will not post with either module one at a time I would suspect some other issue. All of our modules are tested on a MB at the tested settings before they leave our factory. So it would be verry unlikely you got 2 dead modules from us. Have you tried the modules one at a time like in slots B1?
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For the no boot I suggested a ram dimm from another system ( so another ram type) to exclude the ram-mobo incompatability .

 

also did the bios detect a rpm of the CPU fan ? Any safety enabled there ?, hook up the Boxed fan to the CPU fan socket on the motherboard and see if it boots then. Look into the Uguru if CPU fan monitoring is enabled !!

 

For your powersupply change, wattage means nothing you need for a single rail PSU 24 amps or more and for a dual rail one 18 amps at both rails to get good overal stability.

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Again, I cannot even POST, so I cannot use the BIOS. As for the CPU fan header, yes, that was my first issue, and it's resolved, but I'm still getting issues.

 

I'll take a look at other power supplies, but I highly doubt that the power supply has anything to do with this.

 

I've tried the RAM in EVERY SINGLE POSSIBLE COMBINATION, single channel and dual channel (it's a TwinX set).

 

As a side note, I thought that the best overclocking settings for RAM in an overclocked Venice environment would be 2.5-3-3-6. What would be the best?

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  • Corsair Employees
Thats a mute point if the system will not post. I would suggest testing the modules with another system to be sure but since you have replaced the MB I would maybe try and repalce the CPU. And if you want to over clock I would just set the timings to By SPD to start with and set the voltage to 2.8 Volts and test with http://www.memtest.org.
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