How high can the G400 tolerate on the AGP bus?

[Thasanay]

How high can the G400 tolerate on the AGP bus? Overclocking the AGP bus >66mhz.

[Edguy]

i tried running my G400MAX @ 100Mhz AGP bus (1/1), runs fine, tho it drops to AGPX1, didn't notice any difference what so ever.

[Punk]

Under Win98 SE I run my Matrox G400 Max at 100 bus..no probs. Under NT4 and W2k at +/- 88 bus.

[Genom]

Welp, under my setup, AGP is at 84Mhz and it's rock solid. If I try to go higher, Mahcine wont boot, but then again, I havent tried since I got the MAX, or with the new cooler on the P3. Might try that later

------------------
Asus P2B-F, P3-450~556, 512MB PC100 8ns SDRAM, G400MAX (yay!) at 160Mhz, Teac 58S CD-R, Toshiba SM-1002 DVD-ROM, Toshiba 40X SCSI CD-ROM, 8.4GB IDE primary drive, 9GB Micropolis Tomahawk UWSCSI, 9GB IBM U2WSCSI, 18GB U2WSCSI Cheetah, Diamond MX300, 3COM 10/100TX, 3COM Gaming Modem, Adaptec 2940U2W

And a partridge in a pear treeeeeeee.

[Wombat]

Keep in mind, individual results vary. Also, don't dare be annoyed if your card won't tolerate what other people's cards will.

[absalom]

My g400 (overclocked too) has been running totally stable at 103 bus with a 1/1 agp divider. I wish my chip would go higher, actually. But, it will always default to agp 1x transfers unless I use the reghacks. So... after using the reghacks, agp 2x transfers and sidebanding is reported in win98. Anyone running a g400 with a 133 bus and a 1/1 agp divider stable?

g400 max (167/223)
Celery 300a@464
Abit BX6-2
pc100 cas2

[R-u-Ready]

ABS,
Why do you have your agp at 1/1 at 103 fsb? it just seems that there is no logical reason to run your agp bus at 103 when 2/3 will on only be a little over 66mhz which is what its suppossed to be?? Maybe I misunderstood.....

[absalom]

AGP isn't a totally useless slot. Graphics card companies aren't abandoning PCI video for no reason. I'll admit that using AGP texturing isn't the greatest way to go about things, but when you run games like UT and Q3A with cranked settings... there just simply isn't enough space on a 32meg card to store all those (uncompressed) textures. Not only that, but textures are locally stored in system memory each time a level loads. Then a game, such as UT, will load the necessary textures onto the video card, depending on what is needed to draw a scene. Everyone has seen UT's d3d precache feature and this is basically what I'm getting at. A higher agp bus speed will result in less load times due to texture loading, simply because your bandwidth is increased. A 133 agp bus theoretically should cut your precaching time, since your bandwidth to the card is doubled. Then you can get into things such as side banding and agp 2x mode. No denying, agp is superior to pci in many ways... but that's another topic.

My feeling is that if it's stable, then there is no sense in not getting the most out of my system. The overall performance difference between running a 2/3 and 1/1 divider is trivial, no doubt. But why do people overclock their cards just for a few extra fps? It's because they have a drive to get the most out of their hardware, regardless of how small the gain is.

As to the topic... I'm still curious as how many g400 owners have/had their g400 running stable at a 133 bus and a 1/1 divider? Sidebanding or 2x working also?

[This message has been edited by absalom (edited 21 January 2000).]

[exodus]

My Max was stable at 100Mhz w/ 1/1 divider! AGP 2X & side banding enabled(according to CPU Id) & not one crash in any 3D game.

[Top_Cat]

Hello

What do I need to do to overclock the AGP? is it a bios thing or some program I can download?

Top Cat
System Information:

Processor Type: AMD-K7(tm) Processor
Processor Speed: 500MHz
Processor Caps: Enhanced 3D Now!/MMX

Total System RAM: 128Mb Dimm PC100

Motherboard: MS-6167 (AMD751)
Sound Card: Creative Labs Sound Blaster PCI128
Graphics Card: Maxtrox G400 MAX

New 5.50
RESULTS TEST 2 TEST 3
3DMark Result: 2074 2538 2428
Game 1 - Helicopter
Low: 43.0 51.0 49.7
Medium: 25.8 34.2 32.5
High: 8.1 14.5 14.3
Game 2 - Adventure
Low: 47.8 58.0 55.5
Medium: 30.3 34.0 31.7
High: 17.9 19.8 18.7
Fill Rate (Single-Texturing): 226.3 17871.9 269.4
Fill Rate (Multi-Texturing): 236.9 268.7 268.2
High Polygon Count (1 Light): 1587 2248 2207
High Polygon Count (4 Light): 1417 1910 1906
High Polygon Count (8 Light): 1225 1572 1562
8MB Texture Rendering Speed: 154.1 224.8 224.3
16MB Texture Rendering Speed: 146.1 217.5 212.3
32MB Texture Rendering Speed: 115.8 156.9 140.4
64MB Texture Rendering Speed: 103.1 68.1 45.0
Bump Mapping (Emboss, 3-pass): 61.3 98.2 98.6
Bump Mapping (Emboss, 2-pass): 84.1 126.8 126.6
Bump Mapping (Emboss, 1-pass): 156.8 226.5 226.2
Bump Mapping (Enviroment): 73.7 89.8 93.7

Internal 3D CARD
Name: Matrox Millennium G400 DualHead Max - English
Driver Name: G400DD32.DLL
Driver Version: 4.11.01.1410 (Not Certified)
Total Video Memory: 32697KB
Total Texture Memory: 28809KB
Bus: AGP
IRQ line: 9

[mathew]

Hi people

I would just like to say that I have been overclocking my G400 Max from day 1 and it has been running as follows.

Sys Specs

G400 MAX running with agp X2 (since Xmas)Bus speed 93Mhz x2=186Mhz Appature size 256Mb :P
P3 450 running at 630 mhz (140 fsb)(L2 cache 2) 2.0v s-code SL35D Costa Rica (oem)
Alpha P3 125c Copper Embedded heatsink
Abit BE6 Motherboard
128 mb pc 100 sdram (my lucky dimm)
17.3gb Fujitsu h\d Udma 66
21"Sony monitor
SB Live Value
Diamond Super Express 56i Modem
Pioneer 10X DVD Drive(region free)
Supermicro SC-750 full tower case

G400 Max o\c with power strip
Memory Clock 216.0 Mhz
Graphics Clock 162.0 Mhz
No incorrect anomalies(ARTIFACTS) with Graphics Images!!!

BENCHMARKS USING 3D MARK 2000

800x600x16bit with 16bit Z-Buffer, V-synch off, 16 bit textures.
3DMarks :-3355
CPUMarks :- 213
---------------------------------------------
800x600x32bit with 16bit Z-Buffer, V-synch off, 16 bit textures.
3DMarks :- 3115
---------------------------------------------
1024x768x16bit with 16bit Z-Buffer, V-synch off, 16 bit textures.
3DMarks :- 2968
CPUMarks :- 213
---------------------------------------------
1024x768x32bit with 32bit Z-buffer, V-synch off, 32bit textures.
3DMarks :- 2294
---------------------------------------------
1280x1024x16bit with 16bit Z-Buffer, V-synch off, 16 bit textures.
3DMarks :- 2118
CPUMarks :- 211
--------------------------------------------
1280x1024x32bit with 32bit Z-buffer, V-synch off, 32bit textures.
3DMarks :- 1425

---------------------------------------------
XMAS 1999 AGP X2 TEST RESULTS

3DMark Project:
3DMark 99 Build Version: 200
Date: 19/12/99
Time: 16:52:30
Project Name:My Project(2)
Comments:

Project Settings (Template):
Rendering Platform: Internal (Matrox Millennium G400 DualHead - English)
Resolution: 800*600
Color Depth: 16-bit Color
CPU Optimization: Intel(r) Pentium(r) III
Z-Buffer: 16-bit
Frame Buffer: Triple buffering
Refresh Rate: VSync Off
Looping: Disabled
Texture Format: 16-bit, 4444 RGBA
Run Tests: Once
Title Screen: Shown

Test Results:
3DMark Result : 6,423 3DMarks
Synthetic CPU 3D Speed : 9,799 CPU 3DMarks
Rasterizer Score : 2,799 3DRasterMarks
Game 1 - Race: 70.4 FPS
Game 2 - First Person: 59.0 FPS
Fill Rate : 267.3 MTexels/s
Fill Rate With Multi-Texturing : 267.4 MTexels/s
2MB Texture Rendering Speed: 411.7FPS
4MB Texture Rendering Speed: 328.6FPS
8MB Texture Rendering Speed: 227.4FPS
16MB Texture Rendering Speed:170.8FPS
32MB Texture Rendering Speed:102.3FPS
Bump Mapping Emboss, 3-pass: 123.1FPS
Bump Mapping Emboss, 2-pass: 160.9FPS
Bump Mapping Emboss, 1-pass: 290.9FPS
Point Sample Texture Filtering Speed:N/A
Bilinear Texture Filtering Speed: N/A
Trilinear Texture Filtering Speed:N/A
Anisotropic Texture FilteringSpeed:N/A
6 Pixel/individual: N/A
6 Pixel/strips: N/A
25 Pixel/individual: N/A
25 Pixel/strips: N/A
50 Pixel/individual: N/A
50 Pixel/strips: N/A
250 Pixel/individual: N/A
250 Pixel/strips: N/A
1000 Pixel/individual: N/A
1000 Pixel/strips: N/A

System:
Windows Version: Windows 4 , Build 1998
DirectX Version: 4.07.00.0700
Bios Version: rv3.50v
Bios Date: 08/24/99
Total Physical Memory: 128 MB
Free Physical Memory: 66 MB
this systems runs with 100% stability and has done from day 1 what more can I say(KEEP UP THE GOOD WORK MATROX) { ) aKa Max-Payne