Frank wrote:
> On 13 Jun., 00:53, "John7" <N...@m.No> wrote:
>> "Frank" <fmbsg-nore...@yahoo.de> schreef in berichtnews:f9043b78-a26a-4aa0-85b8-...
>>
>>
>>
>>> On 8 Jun., 00:13, Paul <nos...@needed.com> wrote:
>>>> Frank wrote:
>>>>> Hi there,
>>>>> all brand new:
>>>>> - Mainboard GA-MA78G-DS3H
>>>>> - CPU Athlon 64X2 6400+
>>>>> - 2x Geil-DDR2-800 each with 2GB
>>>>> - Enermax Pro82+ 385W
>>>>> Everything installed along with new hard drives and new DVD burner.
>>>>> Turned on power:
>>>>> - case fan starts
>>>>> - CPU fan starts
>>>>> - case Power LED lights up
>>>>> - no video! neither on VGA nor on DVI
>>>>> Pulled off all unnecessary plugs (SATA, USB, Reset SW, Floppy, Audio)
>>>>> => same reaction, 3 fans start, no video signal.
>>>>> Attached a speaker to FrontPanel-SpeakerHeader: no beep!
>>>>> What is it? CPU? Board? Both?
>>>>> Any hint warmly welcomed
>>>>> Frank
>>>> Both power cables installed ? No beeps could be
>>>> a lack of CPU power, via the ATX 12V 2x2 power
>>>> connector (two yellow wires +12V, two black wires GND).
>>>> You need at least a CPU, CPU fan, and working BIOS
>>>> chip, to allow a beep code for missing RAM or
>>>> missing video. So you can strip out the RAM
>>>> and try that as a test. If you got a repeating
>>>> beep code, then you know the CPU executed some
>>>> BIOS code, the CPU works and is powered.
>>>> Paul
>>> Hi Paul,
>>> you seeded the solution: Pulling off both RAMs leads to some
>>> undefinable beeps. OK, what's happening, if you insert only one RAM
>>> bar? It works!! Everything works fine! Switching the bars still works.
>>> So, having 2 bars each with 2 GB RAM leads to "I'm dead". Having only
>>> one of them (regardless which one!) works! So far for a 16GB-
>>> mainboard.
>>> Thanks and bye
>>> Frank
>> Hi Frank,
>>
>> 1. Check the motherboard manufacturer's RAM compatibility list.
>>
>> 2. Consider raising RAM voltage in 0,05V steps.
>> Use SIMMtest/DocMem software to check long term stability.
>> DO NOT exceed RAM voltage spec by more than 0.2V.
>>
>> HTH,
>> John7
>
> Here it is: Insert one of the 2GB-bars, flash BIOS to the newest F3-
> Version. Afterwards it works with two 2GB-bars like it should. Maybe
> Gigabyte needs to improve their QA-measures....
>
> Thanks to Paul and John
> Frank
This is a known issue, with some of the Gigabyte boards. And this is
general advice for any motherboard. It takes about five BIOS releases,
before they do a decent job at RAM compatibility. For the users who
chart the results with each release, there is even a back and forth
on performance (of the five releases, if your RAM works, you might
notice significant changes in memory bandwidth). On some of the
Gigabyte boards, the things eventually become bulletproof, after
those BIOS releases come out.
In terms of development cycles, the "A team" works on the board
for the first few releases. Eventually, a "sustaining" team releases
BIOSes later, for things such as adding CPUs for compatibility.
Sometimes, the sustaining team release miserable BIOS, with new
bugs introduced (perhaps even old bugs that were fixed, come back).
So if you were to take the tenth BIOS release, and install it,
that might be a step backwards.
In any case, check forums, Newegg reviews, and the like, to get
feedback on the latest BIOS, and whether it is a dog or not.
On my Asus A7N8X-E board, the sustaining team released two really broken
BIOS in a row. So it appears, management doesn't slap them, until
they make a real mess.
Paul
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