Re: Voodoo 3 PCI 640x480 resolution in DOS Strangeness?
Posted on 2021-03-30, 22:19
does running these benchmarks under windows give you higher results? if so you didn't enable write combining under DOS, i.e. via a tool like setk6 or mtrrlfbe.
Re: Booting from SCSI HD with ISA SCSI controller, how does it work?
Posted on 2021-03-29, 19:21
yeah, using an adaptec card with BIOS like the 2940 series to install windows 95 and up is really "plug and play" as long as there are drivers on the bootdisk for your card. everything is pretty much handled automatically, so SCSI gets a bit of a bad rap for no reason here really. you only need to …
Re: Early Pentium Chipset Comparison
Posted on 2021-03-28, 19:15
But quality of the board is really good. The manufacture used solid-state capacitors that is very unusual. those aren't solid caps, they're just SMD electrolytics. in fact they are worse than regular thru-hole electrolytics. the only solid caps i've seen on certain 90s boards are those purple OS- …
Re: Replace Low ESR Electrolytic KZJ Cap with a polymer or similar NOS electrolytic ?
Posted on 2021-03-27, 07:22
i'd go for the polys then if you don't mind the higher price. the HN would probably be fine too though - there's certain standards in capacitor datasheets for how and how long they can be stored and i'd expect mouser would be following those. i also don't see NOS there anywhere but rather EOL, so …
Re: Replace Low ESR Electrolytic KZJ Cap with a polymer or similar NOS electrolytic ?
Posted on 2021-03-27, 04:47
the HN would not just be taller but also be 10mm diameter versus 8mm on the KZJ so keep that in mind, you'd run into trouble if the current caps are already touching each other. but yes, otherwise those would be a very good replacement. the poly cap you found is an SMD variant actually.
Re: 2D game benchmarks (DirectDraw etc)
Posted on 2021-03-27, 04:32
if you really wanted to benchmark a game, diablo ii could work since it's one of the few (?) directdraw games that does show FPS - just enter a game, don't click anywhere, press enter and type /fps. singleplayer is capped at 25fps though i doubt the cpus you mentioned could even hit that, but it's …
Re: 2D game benchmarks (DirectDraw etc)
Posted on 2021-03-27, 01:19
winbench did have directdraw tests, i believe i saw it in 3d winbench 2000 but it's probably on the earlier ones too. for using later 2d+3d cards when it comes to directdraw i suspect there's not all that many conclusions to draw here beyond random numbers on screen, since all the games should …
Re: Dos Game Stutter in Real Mode DOS
Posted on 2021-03-27, 00:52
a copper shim might be too thick though, no? at least thermal pads are somewhat malleable, but you still want to get one that's the right thickness for that heatsink. frankly it would have been hard to tell what exactly is going on just from those pictures - i would have thought that there's a …
Re: Dos Game Stutter in Real Mode DOS
Posted on 2021-03-26, 22:36
well, doom is capped at 35fps, while pcpbench is uncapped, so that may be a possible explanation. i suppose the pentium ii 400 even with these issues is fast enough to run that game at its cap, perhaps helped by the faster file access under windows.
Re: brief system freezes in 98se, probably HDD related
Posted on 2021-03-26, 22:32
hmm, i really don't feel like messing with linux right now just to read out this drive... it's a bit of a shame that you apparently can't get any readouts on these SCSI drives under windows and a bit inexplicable to be honest. it's an ultra160 drive from 2000 after all. the freezes still didn't …
Re: Dos Game Stutter in Real Mode DOS
Posted on 2021-03-26, 22:17
OP already said that pcpbench gives him erratic scores and stutter even under win98.
Re: Dos Game Stutter in Real Mode DOS
Posted on 2021-03-26, 22:12
are the BIOS versions on the two units identical? i have found a teardown video here: https://www.youtube.com/watch?v=8QIaMFxrtWQ it looks like there are two electrolytic SMD capacitors on the mainboard. i don't know how plausible it is that those could be the culprit and to be honest haven't seen …
Re: Dos Game Stutter in Real Mode DOS
Posted on 2021-03-26, 20:11
did you do a few runs of pcpbench on the C1XF under DOS to make sure it's really stable there? also i'd check autoexec.bat/config.sys/dosstart.bat for whether there's any differences to the ones on the C1XS.
Re: Dos Game Stutter in Real Mode DOS
Posted on 2021-03-26, 16:36
looking back, OP already clarified that he turned off throttling in the BIOS. i assume he's been using the device with power adapter connected to make sure it's not throttling for power saving. unfortunately at least the hard drive results can't be meaningfully compared between windows and DOS for …
Re: Dos Game Stutter in Real Mode DOS
Posted on 2021-03-26, 11:12
did you ever check the capacitors on that unit? not that i would necessarily think sony would cheap out here, but there were certain types of problematic SMD caps in the 90s. otherwise, maybe the processor is overheating? are there any thermal readouts in the BIOS? i don't think thermal throttling …
Re: System won't post (?) with audio card plugged in
Posted on 2021-03-26, 03:25
I've got the MB set to jumper-free mode and have the CPU clocked at 133/33 with 1.65v, as per the specs from Intel. no, what you have there is a 133mhz FSB CPU on a 100mhz FSB mainboard, so you're overclocking the bus by 33% right now. either set the bus to 100mhz and run the CPU at reduced clocks, …
Re: Fastest CPU Descent 1 can handle?
Posted on 2021-03-25, 20:09
the homing missile thing is already enough to render the game unplayable by itself, since it makes enemy ones unavoidable, so it's unfortunate indeed. maybe the inclusion of higher resolutions in later patches was their quick workaround for this issue... descent 2 is improved in this regard but …
Re: Dos Game Stutter in Real Mode DOS
Posted on 2021-03-25, 14:53
i think OP mentioned taking out some memory he put in himself (?), but yeah, making a memtest boot floppy/usb (whatever that thing can boot) and testing the memory on that "bad" machine is a good idea. actually i'm reading the datasheet for the C1XS now and it states max 128 MB of RAM but there …
Re: Windows 98SE machine occasionally grinds to a halt.
Posted on 2021-03-25, 14:42
is your 430HX board equipped with the proper tag ram chip to cache >64MB? otherwise you will see a performance penalty. enable DMA for the CF and CDROM in device manager, that should improve I/O performance a bit. for that lockup, that could be maybe a scratched disc or an IDE cable with a loose …
Re: brief system freezes in 98se, probably HDD related
Posted on 2021-03-25, 14:36
the nic is sharing with the usb controller (and i'm using a usb mouse). i considered the intel nic as a cause, not so much due to irq sharing than the fact that i read about periodic stutters in DOS games running under 9x with a misconfigured network, but in this case the freezes weren't really that …
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