motherboard internals

Gigabyte Ga-ep35-ds3r motherbaord
December 25, 2009 at 22:52:30
Specs: Windows 7
I have a MB that won't boot and I suspect the problem is hardware and heat related to slot 3 memory.
It cold boots in the AM, will run fine most of the day. If I reboot it, it will hang at the BIOS memory test.
If I remove memory from slot 3 - no problem, doesn't matter which stick is in slot 3. I actually have to remove 1 & 3 but I tried with one stick in each slot and 3 is the problem.
Are these devices supplied by different power regulators? what devices would I be looking for?
I guess the next step is to get out the freeze spray.

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December 26, 2009 at 04:25:56
Have you considered getting heatspreaders for your ram? I don't know how effective they might be but can certainly do no harm.

Goin' Fishin' (Some day)

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December 26, 2009 at 06:07:05
Richard may be on to something. If the RAM works OK in that slot when the system is cool it would appear that heat may be the problem.

What exact RAM modules are you running?

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December 26, 2009 at 21:15:05
that might be a good conclusion except that
1. all 4 sticks of ram have heat spreaders
2. it doesn't matter which stick I put into that slot.
3. all sticks work w/o a problem in slot 2/4

I am looking for something on the MB that is unique to each slot. But I am not familiar with the architecture.

Separate power regulators?
separate clock drivers?
That kind of thing.


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Related Solutions

December 27, 2009 at 07:28:18
What voltage is required for your RAM and what type is the RAM?

The fact your RAM has heat spreaders tells me that the RAM is not running a JDEC specs for voltage. Juicing the chips to get more performance is common. This causes much more heat to be created. You case may be such that the airflow to some of the RAM is better than others. When RAM overheats you will get errors.

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December 27, 2009 at 17:18:17
Thx OtheHill
this is Crucial and OCZ ram.
It is running at whatever voltage it is suppose to. IE, I haven't changed it.
I am looking for info re the INPUTS to the ram because it doesn't matter which ram occupies that slot.
My conclusion is that something FEEDING that slot is what is creating the problem.

UPDATE-I think slot 4 also has a problem. Had another crash - same symptom. now running on one stick in slot 2
Therein lies the reason for the question.

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December 27, 2009 at 20:07:57
So you are running two different brands of RAM?

Download and install SIW. SIW should be able to show you all the specs on the RAM.

If I understand your problem the computer runs all the RAM when first started?

Install SIW and wait until the computer is cold. Then boot up and run SIW. Post what you find for the voltages and What the EXACT RAM modules are.

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