[BUG] 430VX memory and keyboard

[omarsis81]

Today I've found a very odd bug...
On the 430VX motherboard if I choose 16 or 8 MB as RAM, they keyboard doesn't respond
Aparently, with 4MB (minimum supported by the motherboard) works fine...

Maybe PCem has problems identifying the banks with 72 or 168 pins?
BIOS DATE: 12/10/97

[szadycbr]

can not reproduce, same bios date, 430vx with either 8 or 16 megs and keyboard works fine. tryed on all CPU models , still fine. very strange. maybe send details of your config, will try exact same as yours.

[ppgrainbow]

As far as I know, the 430VM motherboard will run with as little as 2 MB of system memory on(absolute working minimum), but if you try to operate the 430VX emulated motherboard with only 1 MB of RAM, the BIOS will not POST after testing the system memory, unless you press the DEL key really quick to enter CMOS setup.

[omarsis81]

can not reproduce, same bios date, 430vx with either 8 or 16 megs and keyboard works fine. tryed on all CPU models , still fine. very strange. maybe send details of your config, will try exact same as yours.

locked.png (44.28 KiB) Viewed 5330 times

It mostly happens when trying to access the BIOS setup with certain video cards.
Please try with any of the following and try to hit DEL and navigate in the BIOS:

Diamond Stealth 32
Diamond Stealth 3D 2000
Number Nine 9FX
VGA

*Sometimes* I get that the keyboard is locked

[SarahWalker]

Seems to work okay here. Can you post your pcem.cfg please?

[szadycbr]

strange i used stealth 32 and it gets "locked" while trying go to bios, i used p75 and MP1200 MMX and same thing happend, also on virge dx/gx. if you hit delete quickly before memory test it usually work, but when you do it after test hitting 2-3 Times it will boot into win, but keyboard wont work. i hit oonce after test and keyboard worked but it did not go to bios. when i do hit few Times it still wont go to bios but keyboard gets "stuck"? or "lock"? anyway, you were right, something is odd , it never happend to me on real hardware. But i did not get fancy "locked keyboard" description, he he. and i had 16megs.

[omarsis81]

Seems to work okay here. Can you post your pcem.cfg please?

Code: Select all

gameblaster = 0
gus = 0
ssi2001 = 0
voodoo = 0
model = 430vx
cpu_manufacturer = 0
cpu = 0
cpu_use_dynarec = 1
cpu_waitstates = 1
gfxcard = stealth3d_2000
video_speed = 0
sndcard = none
cpu_speed = 9
has_fpu = 1
disc_a = C:\Users\Omar\Dropbox\floppies\Dos6.22.img
disc_b = 
mem_size = 16384
cdrom_drive = 0
cdrom_enabled = 0
cdrom_channel = 2
cdrom_path = 
vid_resize = 0
vid_api = 1
video_fullscreen_scale = 0
video_fullscreen_first = 1
hdc_sectors = 63
hdc_heads = 16
hdc_cylinders = 4000
hdc_fn = C:\OMAR\PCem12\hard_disk\win95-430vx.img
hdd_sectors = 0
hdd_heads = 0
hdd_cylinders = 0
hdd_fn = 
hde_sectors = 0
hde_heads = 0
hde_cylinders = 0
hde_fn = 
hdf_sectors = 0
hdf_heads = 0
hdf_cylinders = 0
hdf_fn = 
drive_a_type = 5
drive_b_type = 0
window_w = 0
window_h = 0
window_x = 0
window_y = 0
window_remember = 0
joystick_type = 0
mouse_type = 0
enable_sync = 1
hdd_controller = none

[Joysticks]
joystick_0_nr = 0
joystick_1_nr = 0

It could probably be a bug in the BIOS... it is not very important. I'll see if I can find another BIOS for this board