750Duron@904, cant squeeze anymore out

[Guest]

Ok here’s what I did. I have a Duron 750 on an Abit KT7A mobo. I’m running 128MB of Mushkin Basic Memory. I’m running a volcano II HSF. Windows ME.

Yesterday I tried changing the FSB in the soft menu from 100/33 MHz to 133/33 MHz. As soon as I did this it wouldn’t post. I was unable to get back in the bios using the insert key. So I tried to clear the C-mos, no luck there. I thought maybe I needed the L1 bridges closed so I took off the HSF and closed the L1’s. Well after I put it back together I was able to get back in the bios with the insert key. I had lowered the multiplier to 5.5 per my brother in law. Well anyway I put everything back where it was normally. After playing with it some more I raised the multiplier to 8X100 and in the CPU FSB Plus mhz I started with increasing the FSB 5 at a time, 5 worked great 10 worked great 15 it wouldn’t post. So I have it at 13 now so I’m running 8X113 so I’m running at 904MHZ. This is all she’ll do. I haven’t bumped up my voltage. My memory is CAS 3 Mushkin Basic PC133. All dram timings are at Turbo. That made a big difference on my memory benchmarks. If anyone knows what I’m doing wrong I would love to hear about it.

System Specs:
Duron 750
Abit KT7A
128mb Basic Mushkin PC133
8X multiplier
FSB 113
Voltage CPU Default 1.6v
I/o voltage 3.4v
4way interleave enable
idle temp 27c
full load 35c

Codes off the CPU
0750 AUT18
AKCA 0045VPBW
27796450710
1999 AMD

Any info would be most appreciated.

 

[Croaker]

try 7.0 * 133 for 933 and put it to 1.85v.

 

[SerArthurDayne]

I have a Duron 800 and ABIT KT7 that I've overclocked and I've experienced similar problems when trying to overclock the fsb. If I try to go 115 the thing won't even post, and I seem to get better results with a higher multiplier setting and fsb only at 113. From reviews I would've thought the board would have gone higher, considering some people were easily getting 133, but I've had no such luck.