Info for anyone having G400 AGPx2 problems

[RobP]

I was getting lockups and wierd screen redraws whilst using corel photopaint and adobe photoshop, and the occasional lockup when starting games. I thought I had fixed it by reseating the G400 in the agp slot, but this was shortlived, the only fix was to force AGPx1 mode. Finally I changed my 200W psu for a 250W and after extensive testing I cannot reproduce a lockup.
Conclusion: either the G400 requires alot of power in AGPx2 mode or my old psu was too "noisy". I lean towards the former as my old G200 worked fine in AGPx2.
Hope this may be of use to someone,
RobP

[patE]

I have the same problems with AGP 1x and 2X.
What's your mobo configuration ?

[RobP]

Abit BX6 mp bios
PII 333 @ 4x100(pre multiplier lock)
128Mb

[Maggi]

It's that Abit board producing the noise, but it may be dependant on your power supply since it seems to have fixed your problem.

No such problems on Asus BX boards ...

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Cheers,
Maggi
________________________

Working Rig:
Asus P2B-DS @ 103MHz FSB
Double Pentium III-450 @ 464 MHz
4 x 128MB CAS2 SDRAM
Matrox Millennium G400 32MB DualHead
Eye-Q 777 (22" with 127kHz) on primary VGA
Nokia 445Xi (21") on secondary VGA


Home Rig:
Asus P2B-S Bios 1010 @ 100MHz FSB
Celeron 333A @ 500MHz
2 x 128MB CAS2 SDRAM
Matrox Millennium G400 32MB DualHead @ 150/200MHz
CTX VL710T (17")
and a brand new Pioneer 303S SCSI-DVD

[CannyOne]

Don't think it's the fault of Abit motherboards in general personally. Though there may be issues with this particular board. I've used the G400 on a series of different Abit boards (BH6, BX6 r.2, and BE6)and not had problems with AGP 2X, unless I created the problem with "tweaks" to the system. Then to get the registry 'reset" I'd have to perform a clean reinstall. :-(

[chihuang]

I have AGP2x problem too. I have to force it to AGP1x for stable operation. My board is Abit BX6 2.0, Celeron 300A @ 527, generic 250W powersupply. I believe it should be that G400 requires lot of power since if I disconnect my 2nd HDD gives a little more stability when I was running AGP2x

[mj12]

Abitbx6 r2.0 and no problems at all, I have a nice 300 watt power supply, pIII500 o/c to 560, w98se (very tweaked). Adaptec2940U2W, blah blah blah.

[Nuno]

I too have a BX6 (rev 1) bios MP and I always got agp 2x both with G200 and G400.

[DuRaNgO]

I recently picked up a "cheapo" 300watt ps to replace the 250watt one that came with my "not so cheap" case only to find that it wouldn't run at 620mhz any more and was very unstable, since putting back the 250, no more probs, SPEND THE BUCKS AND GET A GOOD ONE!
jim

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PIII-500mhz @ 620 ! with an Abit BE6 mobo
128mb pc-100
Mill G400 (YAHOO!!!) 32mb @ 167/208 with MGATweak-417mhz, (2.5, 2, 2.5), PD 5.41 & bios 1.5-22
Maxtor 14.3 gb Uata66 hdd
SB Live!
Winblows 98se & DX7
32 lbs. of fans, heatsinks and aluminum ductwork
3DMark Result 5954.69 3DMarks
Synthetic CPU 3D Speed 9325.69 CPU 3DMarks
Rasterizer Score 2791.72 3DRasterMarks
Game 1 - Race 65.07 FPS
Game 2 - First Person 54.89 FPS
Fill Rate 268.79 MTexels/s

[chihuang]

DuRaNgO,

I did. I just asked my friend who went back to Taiwan this winter break to bring me a 350W or 400W high quality powersupply. It costs a lot cheaper in Taiwan!

Nuno, patE

What kind of powersupply do you guys have?

[Nuno]

I´ve got a perfectly generic 235W (ouch) ATX ps. Not to many things to power, though: besides the board, cpu and 96 mb RAM, just a CD-rom, floppy, 1 HDD, G400, sb-live and a isa scsi scanner port.

I´ve got a celery 300A@450 2.2v for more than a year, never had a single problem.