rec.autos.simulators

1. OverClocker's Pad is free software, that allows you to calculate most
necessary values for overlcocker:

http://www.racesimcentral.net/

2. Tom's Hardware - The Overclocking Guide:

http://www.racesimcentral.net/

Brian

x-no-archive: yes

Guys,

Gonna unlock the multipliers on my duron and try overclocking it tonight.

The duron 750 has a FSB of 100MHz, but my memory is 133.

So, would I be better off using a lower multiplier and a 133 FSB (if it
works) as the memory will run quicker, or would it be better to stick with
100MHz and crank the multiplier up?

Or do I have no idea what I'm talking about? ;-)

Thanks.

R.

Yep, for the same cpu speed you would be better off at higher fsb. For
example, if you run at 6 x 133 = 800mhz then you should find that a little
faster than 8 x 100 = 800mhz. Be very careful with your AGP and PCI divider
settings when you increase your fsb or you'll end up overclocking your
graphics card, sound card, modem, etc etc too, not good.

Good luck!

Jim

x-no-archive: yes

Guys,

Gonna unlock the multipliers on my duron and try overclocking it tonight.

The duron 750 has a FSB of 100MHz, but my memory is 133.

So, would I be better off using a lower multiplier and a 133 FSB (if it
works) as the memory will run quicker, or would it be better to stick with
100MHz and crank the multiplier up?

Or do I have no idea what I'm talking about? ;-)

Thanks.

R.

Thanks for the tips. I got it running faster, but it wouldn't stand any FSB
increase, so I upped the mulitplier. I now have a 900 MHz machine :-) That's
100MHz FSB, 9X, 1.65V. Is it better to keep the voltage as near to 1.6V
(default) as possible, or should I run it a bit higher? It felt (but this is
only a feeling) that it was running slightly better at 1.7V, but it would
still make 900 at 1.65V. At 1.6V it wouldn't boot at 900.

I'm a bit disappointed, though. Going from 750 to 900, I expected to see a
bigger increase in frame rates than I did. Does it really make that little
difference when upping the cpu, or do you get less improvement by OCing than
by sticking a "proper" 900 in?

My system:
Soltek SL-75KAV mobo
Duron 750 OCd to 900 (1.65V, 100MHz FSB, 9X)
128Mb 133 RAM
Hercules GF2 MX 32Mb

The difference in F1 2001 was pretty much un-noticeable, GP3 noticed slight
improvement, GPL very slight improvement in FR (1-2).

Did I do it wrong, or what?

Thanks.

R.

Your frame rates depend on three things - game and settings, the cpu and the
graphics card. If you play games at 1280x1024 resolution in 32bit colour,
your graphics card will be working extremely hard and so will probably be
the limiting factor on framerate. If you play with loads of AI, loads of
"special effects" and other cpu-intensive features enabled then the cpu is
likely to be your system bottleneck.

I think it was a good move to run the 750 Duron at 900 as long as it's
stable there. Unfortunately you now have enough cpu power so that the
"weakness" in your system shifts over the the Herc GF2 MX. Solve this by
either (1) using lower resolutions in games, so the gfx card has life a
little easier, or (2) get yerself a faster card (!)

Hope this helps
Jim

PS: The more volts you give it, the hotter it gets and the more cooling is
required. Hotter chips have lower life expectancies than cooler ones. So if
it's happy at 1.65V then you should use it there. If however you end up with
spontaneous reboots or lockups or something, your chip might not have enough
(beware: it might have too much voltage and be overheating - if so don't add
more!)

A good test is to put Quake 3 on timedemo and loop the same demo all night.
Use high detail and low res settings to load the cpu and not the gfx card.
Alternatively get a freeware program "Prime95" and run it in "Torture Test"
mode overnight. If your system is still going at breakfast time then you'll
not have anything to worry about.

x-no-archive: yes

Thanks for the tips. I got it running faster, but it wouldn't stand any FSB
increase, so I upped the mulitplier. I now have a 900 MHz machine :-) That's
100MHz FSB, 9X, 1.65V. Is it better to keep the voltage as near to 1.6V
(default) as possible, or should I run it a bit higher? It felt (but this is
only a feeling) that it was running slightly better at 1.7V, but it would
still make 900 at 1.65V. At 1.6V it wouldn't boot at 900.

I'm a bit disappointed, though. Going from 750 to 900, I expected to see a
bigger increase in frame rates than I did. Does it really make that little
difference when upping the cpu, or do you get less improvement by OCing than
by sticking a "proper" 900 in?

My system:
Soltek SL-75KAV mobo
Duron 750 OCd to 900 (1.65V, 100MHz FSB, 9X)
128Mb 133 RAM
Hercules GF2 MX 32Mb

The difference in F1 2001 was pretty much un-noticeable, GP3 noticed slight
improvement, GPL very slight improvement in FR (1-2).

Did I do it wrong, or what?

Thanks.

R.

As far as GPL is converned, 36fps is as high as it goes. With your
system you're probably getting 36fps pretty much all the time anyway,
so I expect you'll only see improvement on the grid (unless you have
the detail slider a very long way to the right).

PS: Yes, I know I haven't snipped. "X-no-archive" annoys me more than
any other line on Usenet, so unless there's a *very* good reason for it
(which is rare), I generally quote those posts in full, so Google
groups can archive them for future reference.

--
"After all, a mere thousand yards... such a harmless little knoll,
really" - Raymond Mays on Shelsley Walsh.

The GPL Scrapyard: bits 'n' bobs at http://www.hillclimbfan.f2s.com

--
Don Scurlock
Vancouver,B.C.

GPLRank     -16.16
MonsterRank  86.92

Come see how you rank, at the GPLRank site
http://newgplrank.schuerkamp.de/

You will get a substantial boost by upping the FSB to 133 mhz. You
mobo is based on the VIA KT133a chipset, which has official support
for 133mhz FSB. What you will need to do is to drop the multiplier
down to say 6.5 and check that it runs at 650mhz. Then there should be
a setting to up it to 133mhz, most likely in the bios. DON"T try and
do it slowly (like trying 110mhz, 115mhz, etc.) because these FSB
settings will change the speed of the AGP and PCI buses. You have to
go to 133, which has the correct ratios set.

If you do everything right, you will get 866mhz with 266mhz FSB. This
will be faster than the 900mhz you are running ATM.

As far as voltage goes, Durons are well know to be able to handle
voltages up to the maximum available, ie. 1.85v. So feel free to test
the full range. If you can get 1ghz by bumping it up to 1.85v, then go
for it.

There are some who claim that it will reduce the life of your CPU.
This is true, but what is the life expectancy anyway? Your Duron will
likely be upgraded within two years. If it's life expectancy is
dropped to "only" 5 years by overclocking, then who cares?

FYI, I have a 1ghz Athlon which is quite happy at 1.4ghz, and the FSB
is at 266 (from the standard 200mhz) and has been like this for 6mths
already. Only way to go.

Rafe Mc

On Fri, 11 Jan 2002 09:58:55 -0000, "Richard S Beckett"

Milhouse

--
"After all, a mere thousand yards... such a harmless little knoll,
really" - Raymond Mays on Shelsley Walsh.

The GPL Scrapyard: bits 'n' bobs at http://www.hillclimbfan.f2s.com