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A7N8X, 3200 Barton and Twinx CMS512-3200C2 won't work at 400FSB!!!


ChromeBeauty

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Hi

Bought a new Barton 3200 and a 1GB Twinx kit of Corsair Ram and it just won't run at 400FSB. It busted my complete system and I had to reinstall it.

I tested the ram with the memory test progy and it ran fine at 333 but at 400(Had ram voltage at 2.8 and 3-7-7-15 slower isn't possible) the test sooner a later just stopped and I had to reboot.

 

Mainboard:

ASUS A7N8X 1.04 BIOS 1007

 

CPU:

AMD ATHLON XP 3200

AXDA 3200DKV4E 4139913104461

AIUHB0410 UPBW @@ 1999 AMD

 

RAM:

CMX512-3200C2 XMS3202v5.1

XMS3200 512 MB 400MHz cl2

 

Any other infos needed?

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  • Corsair Employees
What do you have the FSB Jumper set too? Should be set to pins 2-3 and the latest bios is Ver 1.010 Beta I would try the latest bios and clear or reset the bios after you move the FSB Jumper and then load setup defaults and set the Dim Voltage to 2.7 Volts with the modules in slots 1-3 or 2-3 then set the timings manually to Cass 2.5-3-3-6 and test with http://www.memtest.org.
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For my Board Revision(1.04) I have the latest BIOS(1007). Also i made a clear.

Are you sure with the jumper?

My manuel says 1-2 for 266/333FSB and 2-3 for 200FSB. Not sure where it should be for 400 as I just can't find any Info at asus.com.

I only found info in the manuals for other versions and there 1-2 are for 400/333/266 and 2-3 for 200.

I already tried the memtest with 2,6 voltage, 2,7 voltage and 2,8 voltage also have set the timings VERY VERY low. But it always stops sooner or later.

at 333 not problem so I don't think that they are damaged.

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200 FSB would be 200 MHz or 400 FSB since its double data rate. 200 MHz X 2 = 400 FSB and or DDR400.

And I would contact the MB make for the bios, if you have questions. In addition, I would suggest you test the modules in another MB as that would help isolate the memory since they are passing at DDR333.

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  • 1 month later...
I had same issues w/stability on A7N8x ver 1.04 after installing 3200xp. I was running bios 1008 and system was unstable until I fixed it w/an update to the Nforce chipset off of Asus website. Find the Nforce update under the Utility tab on the A7N8X download page. (Asus should have a big flashing warning sign on the BIOS update to say a 400 FSB requires the chipset to be updated along w/bios for ver 1.04 board) Anyway, it worked for me, hope it helps you too.
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