Recomended G400 MAX Overclocked Settings For MGA Tweak

[Moto-X]

Hey Guyz and fellow Matrox users,

I have a Matrox G400 MAX and want to know what is a recomended speed to overclock the card to using the deafult fan that came with the card. Please post your settings for 'MGA Tweak' and all of your system components if known. My system Components are listed below.

Cheers
Moto-X

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Abit BP6 Dual Celeron 433@550mhz
256Mb Kingmax PC-133 V1.2
128Mb Hyundai PC-100
Matrox G400 MAX
SbLive Value (Hacked SPDIF)
20.5gig Quantum KX
Sony 17'' Flatscreen E200
Pioneer 6xDVD 32xCD-Rom
Panasonic SCSI 8xCD-Rom 4xCD-R

[alessandro]

Ok lets see...

I've o/c my MAX to 425.45 PLL clock with 2.50/2.00/2.50 clock dividers, use manual Duty Cycle correction of 0/5/0 and 3 2 4 9 4 1 Fast 1 1 1 1.0 1.0 2433 and i'm getting
170.10Mhz/212.63Mhz/170.10Mhz .
In 3dmark 2000 i don't get any gfx corruption at all and if anyone knows any settings that might improve my setup ....tell me



[This message has been edited by alessandro (edited 26 November 2000).]

[alessandro]

My system components:

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Athlon Thunderbird 1.1Ghz@1.2~1.3+GHz Socket A 256Kb,Asus A7V dipswitches,GlobalWin FOP32-1 heatsink,GlobalWin 802 Advance ATX Case, 17" Sony Multiscan 200PST,128MB Crucial PC133 CAS=2 + 128MB PC100 ram,Matrox Millenium G400 MAX 32MB 5ns SGRAM,IBM Deskstar 75GXP 15Gb UltraATA/100, Quantum Firebal EL 10.2Gb,Epson Stylus Color 740,Sound blaster Live!,Cambridge Soundworks 5.1,Creative PC-DVD 5X,CDR-RW Ricoh MP7040S@MP7060S(Tweaked from 4x--->6x with no problem),Adaptec SCSI 2920C,Diamond SupraExpress 56e PRO,Iomega Zip Drive.

[Moto-X]

Hey alessandro,

Thanks for the info I now have my card overclocked at the same speed as yours and its running perfectly even through a day of running 3dMark 2000 bemchmark!

Thanks again and keep up the overclocking also aneyone else who could put down their overclocking results it would be greatly appreciated.

Cheers
Moto-X

[alessandro]

Moto-X,

The problem is (if you call it a problem) that the % increase of the Graphic clock is much bigger than the % increase of the Memory clock so this might mean than the memory can't keep up with the G400 chip speed.
Did you notice in the helicopter benchmark in 3dMark2000 when you o/c your MAX the benchmarks go up, but there is a decrease in the smoothness of the 3d-animation(hick-ups ).
Maybe a different setting will fix this glitch(better SGRAM settings??).

What you think?


[This message has been edited by alessandro (edited 27 November 2000).]

[alessandro]

Moto-X,

Just change the SGRAM Settings from 3 2 4 9 4 to 3 2 3 9 4 and you will get a tiny boost with no gfx corruption at all.

With default CPU speed 1.1Ghz i get:

From 3533 3dmarks---->3578 3dmarks

Game1Low 72.8-->74
Game1Medium 50.7-->51.6
Game1High 21.4-->22.3
Fillrate 302.2/301--->303.1/301.6

Still searching for the sweet-pot settings....

[This message has been edited by alessandro (edited 27 November 2000).]

[kjliew]

Try this,

3,1,4,9,3 or 3,1,3,9,4. Can't remember which one of these two I have at home. Everything else can be the fastest possible settings. With this settings, my vanilla G400DH 32MB happened to work great at more than MAX speed. However, I leave the SYSPLL at 297MHz standard factory dividers. Anything higher than that will cause graphics glitches after long run, an hour or so... Likely a heat issue. My case is not well vantilated.

[Moto-X]

Hey alessandro & kjliew,

Thanks for the tips guyz I appreciate it allot. alessandro thats for the tip n changeing the setting it has im porved the cards speed but only slightly but every bit helps! Thanks again guyz and keep tweaking! Heres my overclocked updated settings .....


System PLL= 425.25Mhz
Gclock=170.10Mhz (2.50)
Mclock=212.63Mhz (2.00)
WARP=170.10Mhz (2.50)
Manual Duty Cycle at G=0,M=5,W=0
Memory Settings (In Order): 3 2 3 9 4 1 Fast 1 1 1 1.0 1.0 2433

Cheers
Moto-X

[alessandro]

And i will like to thank kjliew for developing MGATweak in the first place

By the way i just installed my brand new Crucial PC133 CAS 2 128Mb memmory and i have +230 3dMarks in 3DMarks 2000 .

...and it must be 3,1,3,9,4 because the other setting actually decreases the performance