Overclocking G400 MAX to 414ppl 165/207

[Ryuhei]

Okay, last night I tried overclocking my G400 MAX for the first time. I discovered I have no idea what I'm doing. I locked up my system and had to reset the computer. What do the clock dividers do? I put all different kinds of settings in there and the core/memory speeds actually went DOWN. WTF? Any suggestions? Thanks!

BTW Cyberdude--I thought the jokes were funny!

Mike

[Cyberdude]

The dividers are used to (I think) multiply the clock speeds.
(Pll*dividers=current clockspeed)

Try the setting for your maxx that are posted at the beginning of this topic.

Maybe it will help in your overclocking quest.

Good luck!
Cyberdude

[SVS[RUS]SU-37]

Hello there Ryuhei!

Did you overclocked your G400MAX ?

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SVS RUSSIAN

[Ryuhei]

SVS--No. I haven't tried since I posted that message. I will try again tonight. I think what I was doing wrong was only changing the clock dividers. I didn't touch the PLL thing. I'll try again and post my results. I'm happy with the performance of my system, but I wanna overclock it at least once to see what kind of Q3A gains I get. I currently get 31 FPS in Q3A.

Mike

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PIII 667MHz
Tyan S1854 mobo, 256MB PC133
Matrox G400 MAX, SB Live! X-gamer
6x/32x SCSI DVD-ROM, 10,000RPM 18GB SCSI HD

[Ryuhei]

Well, I overclocked PLL to 414, the core to 165.60, and the memory to 207 with 2.5,2,2.5 dividers. My FPS went up to 32 in Q3A. Whoppee!

Mike

[Cyberdude]

Nice!! and well done!

[Ryuhei]

Um, I was actually being sarcastic. What good is risking possible damage to the card if I only get 1 FPS out of it? Is it safe to overclock it more without extra cooliong? Thanks!

Mike

[SVS[RUS]SU-37]

Hello there Ryuhei!
Its very strange that you gained 1fps in Q3,
I got in timedemo 1, 7 fps but this is avarage fps'es.

And another thing, do you have second cooler on your G400 ?

[Ryuhei]

SVS--No, I don't have any extra cooling on the card. I took it out of the box, put it into my computer, and forgot about it. I don't even remember what the card looks like!

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PIII 667MHz
Tyan S1854 mobo, 256MB PC133
Matrox G400 MAX, SB Live! X-gamer
6x/32x SCSI DVD-ROM, 10,000RPM 18GB SCSI HD

[Cyberdude]

It's acctually better to overclock your Cpu then the G400.
I got 10fps more when I overclocked my p3 450 to 600Mhz

But I like squezing more out of my entire system but that's me.

you have 2 put @ least 1 cooler on your G400 and if you got a maxx then there is already a cooler on it but you still need a good airflow.

CyberD.

P.s. Let's try to hit 40 with this topic!!

[SVS[RUS]SU-37]

He he he... well this is 40 CyBeR DuDe

Yep Cyber-Dude is right, you should have at least one cooler on you G400.

Ryuhei!
When you overclocked your G400MAX how long did you played in overclocked mode ???
Did you got like brocken screen in quake2/3 ?

[Ryuhei]

I don't have Q2, but Q3A looked fine. I must admit though, I don't play it for hours on end, but the performance was perfect!

Mike

[CrazyBee]

You might not be able to raise the mem much faster than 207 or so.. I have gotten my core upto 202, but, mem was at 214 and there really wasnt a performance boost due to the bottleneck between the CPU and the RAM.

Someone had posted results of overclocking the core and 167/207, 183/207, and 198/207. 183/207 had the better score since there is no point in making the core faster if you cant get the info to the ram.

So, basically, the RAM is the limiting factor with overclocking the G400. If you could get that RAM upto, say, over 220 that would be sweet.

You will be able to increase your fillrate and such with MGATweak and using SDRAM/SGRAM optimization. Thats all you really have left.

CB

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Abit BX6 Rev.1
Celeron 366A PPGA @ 566, 2.1v
192 meg RAM, CAS2
13.0 gig Maxtor 4320 HD
6.0 gig Maxtor (in removeable drive bay)
HP8110i 4x2x24
Pioneer DVD-104
SB Live! 1024
USB ZIP 100
G400 32MB DH 5ns RAM
Two KDS 17" Trinitron monitors

[Walrus Bonzo]

I have a G400 16mb.

I'm currently using a SYS PLL of 342.
Dividers being 2.25,2,2.25

Which gives me 152/171/152

Mem Settings
3,1,3,8,3,1,Fast,1,1,1,1.0,1.0,2049

Duty Cycle Correction is on AUTO.

Because my memory is 6ns (166MHz) i really didn't want to clock it any higher, but what do you guys think.

And is it true that SYS PLLs over 310MHz are bad for the G400????

Anything else I could tweak in the memory, should Duty Cycle Correction be on or off!

Will

[Cyberdude]

I think auto etc. should be off,
I read in the enclosed *.pdf that auto etc. should be off when going higher than the max speed.

Oh... sorry you don't have it clocked to the max but that's ok!! But you should keep that in your mind!!

I don't know about the pll etc.

C