Personal computing discussed
Moderators: renee, mac_h8r1, Nemesis
bthylafh wrote:Just ISA peripherals. Floppy connectors use +5V and +12V.
-5V does not appear in modern power supplies, no doubt because ISA slots no longer exist except for specialized machines.
morphine wrote:IIRC it was ISA and floppy drives. Also, some soundcards and some fancy equipment require a floppy drive power connector.
derFunkenstein wrote:morphine wrote:IIRC it was ISA and floppy drives. Also, some soundcards and some fancy equipment require a floppy drive power connector.
There's nothing with -5v in any 4-pin connector (Molex or Berg). It's just +5v,+12v, and a pair of ground connections.
just brew it! wrote:It is possible a motherboard that old may not function properly without the -5V. Another potential issue is that this motherboard is likely from before the emphasis shifted from having most of the wattage on the +3.3V/+5V rails to the +12V rail; the +3.3V/+5V rails on a new PSU may not have sufficient wattage.
IMO your best bet is to find a secondhand PSU of similar age to the motherboard.
Egglick wrote:Socket 370 isn't exactly the dark ages of computing. It should work just fine with any modern powersupply (you'll just need to detach the four [4] extra pins on the main power connection).
Now with that said, old VIA chipsets generally make me want to vomit.
churin wrote:Now with that said, old VIA chipsets generally make me want to vomit.
Could you explain why? I got this mobo from eBay to see Windows 95 operating naitively. Is there any other legacy mobo for this purpose which you recommend?
ludi wrote:2) Look for an entry, probably in a "Chipset Features Setup" menu, labeled "Multi-level I/O queue" or similar. Set it to the highest number. Lower numbers were only there for compatibility checks, and tend to choke the communications channel between the northbridge and the southbridge. IIRC the highest setting is "5" but "3" and "1" are usually available and sometimes enabled as the default setting.
churin wrote:Egglick wrote:Socket 370 isn't exactly the dark ages of computing. It should work just fine with any modern powersupply (you'll just need to detach the four [4] extra pins on the main power connection).
I do not think -5V is carried in that extra four pins. The main power cable used to be 20pins even before -5V was dropped.
churin wrote:I reviewed the "Chipset Features Setup" but could not find where to do the above.
ludi wrote:churin wrote:Now with that said, old VIA chipsets generally make me want to vomit.
Could you explain why? I got this mobo from eBay to see Windows 95 operating naitively. Is there any other legacy mobo for this purpose which you recommend?
Most VIA boards from that era were perfectly fine, the problem was that VIA didn't always supply adequate documentation to the board vendors who, in turn, had trouble choosing the correct default settings BIOS software. That noted:
1) Make sure the board has the most recent BIOS version you can locate.
2) Look for an entry, probably in a "Chipset Features Setup" menu, labeled "Multi-level I/O queue" or similar. Set it to the highest number. Lower numbers were only there for compatibility checks, and tend to choke the communications channel between the northbridge and the southbridge. IIRC the highest setting is "5" but "3" and "1" are usually available and sometimes enabled as the default setting.
3) Creative soundcards sometimes hogged the PCI bus in a way that was actually a violation of the PCI spec, but stable on all Intel chipsets. If the onboard sound or any external Creative soundcard is plagued by static or glitching, look for the "PCI Latency Timer" and change it from the default 32 cycles to 64 cycles, and if that still doesn't fix it, try 128 cycles.
Egglick wrote:I think VIA's problems stemmed more from their drivers than anything. They were extremely buggy (causing bluescreens and crashes), and it was very difficult to find the correct version (simply going with the latest "4-in-1's" often wouldn't cut it). Especially with an Intel CPU, VIA chipsets were considered "budget boards", which meant they also got paired with lower-end components and circuitry. Most of my experience with VIA came from running AMD cpus before Nvidia's nForce line came out. I pretty much abandoned them after that.
churin wrote:Could anyone provide name of the NVidia's chipsets for P3 1GHz, or better yet a specific legacy mobo using this chipsets?
Ryu Connor wrote:Problem is that timeframe also represents the height of the capacitor plague. Anything you buy from those days is a walking timebomb.
JustAnEngineer wrote:$200 would get you a modern CPU w/ IGP + motherboard w/ USB3 + 4 GiB of DDR3 memory.
If you must look for ancient hardware, one of the Intel i815 chipset variants would be the best option for a processor of that era.
just brew it! wrote:Ryu Connor wrote:Problem is that timeframe also represents the height of the capacitor plague. Anything you buy from those days is a walking timebomb.
Anything you buy from those days that still functions probably wasn't affected by the plague, unless it is "new old stock".
Egglick wrote:A slocket would fix that though. I just finallly got rid of my Celeron 566A overclocked to 850Mhz on a slocket on an Abit BF6 last weekend.The slightly older 440BX chipset was rock solid as well, but I don't know if it went beyond Slot 1.
notfred wrote:Egglick wrote:A slocket would fix that though. I just finallly got rid of my Celeron 566A overclocked to 850Mhz on a slocket on an Abit BF6 last weekend.The slightly older 440BX chipset was rock solid as well, but I don't know if it went beyond Slot 1.