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Subject: Aopen AX6bc

Original Message
Name: cjv8888
Date: May 7, 2008 at 04:03:50 Pacific
Subject: Aopen AX6bc
OS: Ubuntu/win98
CPU/Ram: 560 MHz/320 Mb
Model/Manufacturer: P3
Comment:
I have the above mobo for which I recently bought an extra 256 Mb pc133 RAM.Adding to existing 64Mb pc100 and 128 Mb pc133. However, the mobo is only recognising the new RAM as 128Mb giving a total of 320 Mb instead of 448 Mb. On the mobo menu, it gives a maximum of 768 Mb. The RAM are all non-ECC unregistered. I am just wondering if there is any way of making the mobo recognise the full amount.I have flashed the BIOS to the newest available.

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Response Number 1
Name: jam
Date: May 7, 2008 at 07:07:29 Pacific
Subject: Aopen AX6bc
Reply: (edit)
Most 256MB PC133 modules these days are "high density". Since your board has 3 DIMM slots with a max of 256MB per slot, you MUST use low density modules.

When installing high density RAM in a board designed for low density, one of two things will happen:

1. the system will not boot
2. the new RAM will be recognized at 50% of it's capacity

There is no way to get the other 128MB recognized. Simply put, you bought the wrong RAM. BTW, since you have a stick of PC100 in the mix, ALL your RAM is being forced to run at PC100 speed (100MHz).

"And that's the fishing line, because Sharkboy said so!"


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Response Number 2
Name: wemby089
Date: May 7, 2008 at 19:02:17 Pacific
Subject: Aopen AX6bc
Reply: (edit)
The OP seems to be running a 112 fsb so all three sticks most likely are running at 112MHz. Try to return the memory for pc 100.

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Response Number 3
Name: cjv8888
Date: May 7, 2008 at 19:32:46 Pacific
Subject: Aopen AX6bc
Reply: (edit)
Thanks. I bought the generic RAM 256Mb for about $15 as the branded ones are $60-80.
The system appears stable and runs ok.
Read somewhere about how the generics are 64x4 while branded ones are 32x8 etc.
Guess 320 Mb will have to do.

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Response Number 4
Name: cjv8888
Date: May 7, 2008 at 19:42:55 Pacific
Subject: Aopen AX6bc
Reply: (edit)
Yes, you are right Wemby. The fsb is at 112. When I turned it up to 133, the system kept on freezing, but is running smoothly at 112. The pc100 came with the board years ago. The pc133s are newer comers.

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Response Number 5
Name: jam
Date: May 8, 2008 at 11:03:46 Pacific
Subject: Aopen AX6bc
Reply: (edit)
"When I turned it up to 133, the system kept on freezing"

That's because you have that stick of PC100 mixed in with the PC133. Remove it & you *might* be able to run stably at 133MHz.

"And that's the fishing line, because Sharkboy said so!"


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Response Number 6
Name: wemby089
Date: May 8, 2008 at 11:29:13 Pacific
Subject: Aopen AX6bc
Reply: (edit)
You are running the katmai pIII and they maxed out at 600MHz. These ran very very hot and I would not try 650MHz without a real good cooling solution. The ram would hold you back but I think your cpu is also overheating at that speed. If you really need more speed look on ebay for an upgrade, although I would probably just live with what you have.

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