Duron 750 on MSI K7T Turbo + tweaking = 1 GHz? No way, Jose (at least not for me...)

SiRu

Junior Member
Jun 21, 2001
15
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Greetings All!

I am new to this...

Plan:
Simple. Buy MSI K7T Turbo (KT133A) motherboard & Duron 750. Remove jumper on motherboard, thus upping FSB to 133MHz. This combined with Duron's default 7.5 multiplier should yield the magic(?) 1 GHz. No effort. Easy.

Reality:
1. On adjusting FSB only, max I could boot with was FSB 112 MHz (112*7.5=840 MHz). Even after setting voltage to 1.8V (bios max on MSI board). Disappointing.

2. Adjust processor clock multiplier instead. When installing processor, I joined all L1 bridges (with pencil). I am presently running a 'burn' with 9.5X clock at 100 FSB (950 MHz). Voltage 1.8V. This works, and seems to be the maximum I can achieve, though I have not yet fully assessed stability.

Questions:
1. Should I be happy with this? Actually I am, but should I be making other adjustments?
2. Did I make a mistake by buying the MSI board (because it has this 100/133 FSB jumper)? An Anandtech article seemed to suggest a jumperless or fully jumpered board might be better...I was after the magic 1000MHz afterall....
3. Should I expect the 'pencil' L1 bridge adjustment to wear off after a while thus reverting the cpu back to 7.5X ?
4. (edit) I understand that it is PREFERABLE to gain MHz by increasing FSB as opposed to increasing cpu multiplier...is this correct?

Warm regards...

 

flyers1

Golden Member
Feb 7, 2001
1,233
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Well, the Duron 750 is supposed to have a 100MHz FSB so you are hit or miss with getting it up to a 133 bus. I think most people have to jumper the bus to 133 and lower the CPU multiplier. Maybe try 133 bus (or higher) and 7 or 6.5 multiplier.

Yes, a higher FSB is normally a faster machine than same speed, higher multiplier.
 

Herkulese

Golden Member
Jan 24, 2001
1,151
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Go to Anad's artical titled:

VIA's KT133A - Overclocking w/the 133 Mhz FSB "The Issue"

Read the artical and then use the chart to set your default mult to 7.0. This should bring the initial boot up speed down to a reasonable leval untill the BIOS can take over. It is still not 1ghz but you will be running at 133mhz system and speed.
 

iamthesystem

Banned
Oct 11, 1999
563
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that article doesn't quite cut it.

it claims that "all you need to do is modify the L6 bridge" (paraphrased)...

and i do have to disagree on that method--doesn't work with my duron900 and K7T Turbo...

 

compuwiz1

Admin Emeritus Elite Member
Oct 9, 1999
27,111
926
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Not many duron 750's doing 1GHz lately. The ones I test at that are normally from 800 and up cores.