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three things:
#1 My case temp is below 75f due to wellplaced fans including a slot fan below the card,
#2 I fragtaped some small heatsinks to my 6ns memory chips (cut out of the stock g400 heatsink ),
#3 Installed a Lasagna cooler on the g400 chip
good luck
jim
------------------
Abit BE6 with P3 500 @ 5*124=620
14.6 gb Maxtor ata66 and 128mb ram
G400 vanilla 32mb @ 168/210
Sblive with Altec Lansing speaker combo
384k DSL and Realtek nic
Windows 98se with DX7a
3dMark2000 = 2956
Worn out reset button :O)
PIII-500mhz @ 620 ! with an Abit BE6 mobo
128mb pc-100 cas 2
Mill G400 (vanilla!!!) 32mb @ 167/208 with MGATweak-417mhz, (2.5, 2, 2.5), PD 5.5010 & bios 1.5-22
Maxtor 14.3 gb Uata66 hdd
SB Live!
Winblows 98se & DX7
and 384k DSL!
I know I'm late (the post is dated Jan 2000) But that's the question I was going to ask too. I got G400 with 6ns memory too, and it seems when I OC to more than 180 mHz I get glitches adn testure corruption in games.
I wonder how others get to the G400 MAX level. How about 166 Mhz limit of 6 ns memory? I mean 5ns memory can work safely at 200 Mhz and 6 ns memory only at 166 Mhz. So I think It's my 6ns memory, not the core, that causes those glitches.
DuRaNgO[MU], I know how to stick cooles to chip and memory. What I really asked for was how achieve stable memory operation. For example, I have 66 Mhz system memory working at 100 Mhz FSB. I just set CAS latency and other stuff like cycles 3 and so on. How can I do the same for G400.
You say you got G400 at about 210 Mhz. What are your SGRAm settings? Whichever settings I set, I still get glitches in games.
I have a 16meg G400 card with 6ns memory too and I cant OC it more than 180MHz...
I´m now running it @ 160/180 with a 360MHz SYS PLL and 2.5 ; 2 ; 2.5 for the divisers...and 8/0/8 for the duty cycle correction..
I put thermal paste on the chip and on the memory and a heatsync with a fan from a celery on the chip...
I´m not sure what duty cycle correction is used for, but I know it is only necessary for clock dividers of 1,5 and 2,25...I think
And if u use a SYSPLL more than 310MHz is better u disable the auto duty cycle correction because the table contained on the g400 only supports it up to 310MHz...so because I have clock dividers 2,5/2/2,5 i must put on a value for the duty cycle correction of the first and last dividers...I think 8/0/8 is the only combination that works well with me...if i change them I can only play Quake3 a short period of time, then it crash...and the image becomes like a broken mirror
My vanilla 32meg was bought about 4 months ago, and must have been a pretty good batch. I've always run it overclocked, at the settings 389, 2.5/2.25/2.5. I had a fan on the thing, but it was noisy so I took it off--and it made no difference. It's been stable for months that way.
Perhaps I'll try slapping a fan on the backside, though--maybe that'll get me higher. My ram (6ns) can't take much more, though, so maybe a fan on the backside will allow me to run the core a little faster. Never tried putting little heatsinks on the RAM, though...I just don't think they can take much more than 190 on my card, so I doubt that heatsinks will help. I'm pretty happy with it right now, though.
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