Re: What are your favorite in-game soundtracks (arcade, PC, NES)?
Posted on 2020-02-04, 17:33
My list of favorite game soundtracks would be neverendless, so I'll post just one example 😉 Rob Hubbard - Skate or Die intro: NES/C64/Rearranged tune
Re: NEC Proserva V Plus (dual socket 7 system) (have a lead on multiple of these)
Posted on 2020-01-24, 00:22
Found one S5 intel motherboard with recovery jumper on it. The recovery mode is invoked by connecting address 16 line directly to the Flash ROM (MB used to have i28F001 IC), in normal mode address 16 line is inverted by 74HCT14 hex inverter (pin 9in, pin8 out). Check how 3 highest address lines are …
Re: NEC Proserva V Plus (dual socket 7 system) (have a lead on multiple of these)
Posted on 2020-01-23, 22:43
On other motherboards, which have a BIOS recovery jumper, do you know what the jumper is triggering? Perhaps I should try to trace this out on the Pentium Pro board? Does the jumper disconnect address A0 as you alluded to in PM? It would be pretty difficult to disconnect just one of the EEPROM pins …
Re: NEC Proserva V Plus (dual socket 7 system) (have a lead on multiple of these)
Posted on 2020-01-23, 14:35
I've waited several minutes, but it doesn't find a hard drive. I've tried disconnecting the hard drive, but it still hangs here. The problem now is that I cannot boot from a floppy disk to get the original v14 BIOS back on because the system must pass up the AIC-7880 firmware before it will boot …
Re: NEC Proserva V Plus (dual socket 7 system) (have a lead on multiple of these)
Posted on 2020-01-19, 13:16
SSTV2, thanks a lot for your clever solution. As Horun has two of these boards, he will probably be the first one to test out your modified BIOS. While the 4 mbit BIOS on the Proserva board is in the same package as the EEPROM we did for the Pentium Pro board last year, the location is a lot more …
Re: NEC Proserva V Plus (dual socket 7 system) (have a lead on multiple of these)
Posted on 2020-01-18, 20:12
Replying to feipoa's PM. Predator99's idea of using a separate card to load a SCSI option ROM seems possible, if you'll manage to properly execute it from a NIC, then it'd be the safest method of BIOS "patch". Horun is right about the location of the AIC-7880's option ROM image , except it starts …
Re: Can't get L2 cache work in UM486V motherboard when am5x86 CPU is inserted
Posted on 2020-01-17, 00:08
Hi, both motherboards were tested thoroughly (UM486V and GA-486VM), but neither could detect L2 cache with a 5x86 CPU inserted. I had tried all possible BIOS settings and jumper configurations, related to L2 cache, but nothing could make it work, even tried various BIOS images from chipset- …
Re: Voodoo graphics mod 4 to 8mb
Posted on 2019-12-08, 18:53
Try to downclock Voodoo 2 to 50Mhz and you will see how miserably it struggles to run many games at 800x600. While it's unknown how much Voodoo 2 is better on clock-for-clock basis (without multitexturing), it's safe to assume that Voodoo 1 would be at least slightly worse. Agreed. In my opinion, …
Re: Voodoo graphics mod 4 to 8mb
Posted on 2019-12-08, 15:51
I wouldn't bother modding a Voodoo for the same reasons, that derSammler mentioned. You could directly swap 256K DRAM ICs with 512K DRAM, only on one condition: both FBI and TMU should be able to address more than 2 megs per bank (TMU might comply with such req., not sure about the FBI). Higher …
Re: Will this MB support lower voltage Celerons?
Posted on 2019-12-01, 17:39
Oh, that and his signature text explains alot then 😀 Thank you for your support derSammler.
Re: Will this MB support lower voltage Celerons?
Posted on 2019-12-01, 17:21
This is the first time I see someone claiming that there were early revisions of 440BX chips, that did not support PIII CPUs at all. All he has claimed so far was something no one ever heared before. But hey, he fixed thousands of mainboards, so he must have lots of knowledge. :lol: Seriously, he's …
Re: Will this MB support lower voltage Celerons?
Posted on 2019-12-01, 15:40
I don't care, it's B1 stepping and if you can't tell the difference between IC's stepping and revision, that's just not my problem, I won't bother explaining that to you, because you'd still find some childlish excuse for my arguments no matter what. You got the visual proof of a motherboard, that …
Re: Will this MB support lower voltage Celerons?
Posted on 2019-12-01, 09:05
@SSTV2 I'm sorry that you've never encounter it. Your lack of experience is not my responsibility. I have expected at least a constructive argument from you @PCBONEZ about the incompatibility issue of early stepping 440BX chipsets with PIII CPUs, that you have claimed, but istead of receiving one, …
Re: BIOS Hotflash questions
Posted on 2019-12-01, 00:54
Can you post whole pictures of motherboards with replaced resonators? Bios ROM Checksum error could mean that BIOS you are trying to flash is incompatible with motherboard (but it's compatible enough to display something).
Re: Will this MB support lower voltage Celerons?
Posted on 2019-12-01, 00:45
This is the first time I see someone claiming that there were early revisions of 440BX chips, that did not support PIII CPUs at all. Honestly, I had never enountered such case, where a PIII CPU wouldn't work in a 440BX based motherboard, that got me interested and I did a little research on this …
Re: Will this MB support lower voltage Celerons?
Posted on 2019-11-30, 19:29
Will it support a CPU swap? Is there a way to tell externally? I wouldn't even pay attention what asus or cpu-upgrade sites have to say about this motherboard, all I can see is that it's based on i440BX chipset and has a wide range of FSB selection. If you wish to know whether this motherboard …
Re: Crazy prices for some retro hardware stuff.
Posted on 2019-11-30, 18:54
astronomical sums Yeah, speaking of those.... Your shop - mentioned in your signature - has them...Everywhere. Care to elaborate how you ended up with those prices? https://classiccomputershop.eu/hardware/systems/PC Holy guacemole, Batman. 200EUR+ for a Tecra/Satellite, any Tecra/Satellite, is just …
Re: Packard Bell CRT Monitor Issues
Posted on 2019-11-18, 15:54
the horizontal edges of the screen move back and forth a couple of millimeters or so, but the center stays solid. The top and bottom edges of the drawn screen also stay still; it's only the horizontal edges of the drawn image. I don't get it, does raster stretch out vertically or horizontally? What …
Re: Extensive 486 Modification - Getting an IBM PC 350 Type 6581 motherboard into a Packard Bell Legend PB400 Case
Posted on 2019-11-18, 00:27
The mod looks pretty nice at the first glance, but you sure have more than just a couple things left to do in order for it to be finished properly and completely. OK, lets start from the beginning. 1. I would've discouraged you from cutting the riser board, but the deed has been done. Riser board …
Re: Extensive 486 Modification - Getting an IBM PC 350 Type 6581 motherboard into a Packard Bell Legend PB400 Case
Posted on 2019-11-16, 17:36
Working on an old computer restoration at school? I wonder what sort of study program allows you to have so much fun at the place of educational institution. Personally, I'd just patch a missing piece on the front bezel or, at least, would try to find a similar IBM case for the transfer, if finding …
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