MSI K7T Turbo-R, Duron 800 O/C problems

N3D2000 (Jul 15, 2001 04:11 a.m.):
I have the non raid as well and it is a power down thing. mine is at 1000 right now and I have the Duron 800.

Wonderful processor Mobo combo for the price as well I might say.

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cjo (Jul 14, 2001 08:54 a.m.):
You are totally right! I just tried powering it off a few times, and it finally came back at 900MHz. I will try pumping it up further later. I want to see the temps at 900MHz for bit. Do you think that this is a BIOS issue with MSI, or just flakey engineering?

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cjo (Jul 13, 2001 06:34 p.m.):
I'm having problems overclocking my retail duron800 with my MSI K7T board. I bought a conductive pen, and I unlocked the bridges while using a magnifying glass.

However, when I try to change the multiplier in the bios, I get strange things happening.

Hardware:
MSI K7T-Turbo-RAID (2.8 bios)
Duron800 AKCA 0114CPEW
256MB PC-133 SDRAM

BIOS settings:

CPU Vcore Select: Default
CPU Vio Select: 3.3V
Auto detect DIMM/PCI Clk: Enabled
Spread spectrum Modulated: Enabled
Clock by Slight Adjust: 100
CPU Clock Ratio: Default

Ok, so the above gives me an 800 Duron.

Here is what I get when I change the "CPU clock ratio":

8.0 -> no post
8.5 -> no post
9.0 -> 504MHz
9.5 -> 550MHz

I didn't go higher. I have no idea if this is a motherboard issue, or perhaps AMD has finally caught on to all of the OC'ing after people unlock the L1 bridges
Perhaps I need to change something in my bios?

Help

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TranceBear (Jul 15, 2001 08:22 p.m.):

cjo (Jul 13, 2001 06:34 p.m.):


Disable both these:
Auto detect DIMM/PCI Clk: Enabled
Spread spectrum Modulated: Enabled

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What exactly do those setttings do?

I just tried OC'ing my FSB to 133, but the machine wouldn't POST. Looks like I'm going to have to drop the default multiplier in my 800 to a 7.0 (700) via the L6 bridges. Only requires closing one bridge.

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