Re: K6-2+/III+ slowdown issues on ALi Aladdin V

Posted on 2015-10-16, 14:11

by

by Skyscraper

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I think it would be a good idea to test the K6-2 aswell, Im not convinced the L2 cache in the CPU has anything to do with the issue. I think some Aladdin V chipset motherboards just hates some Voodoo cards, especially my PCI Voodoo 3 which performs at between 50% and 70% of the expected level.

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Re: What retro activity did you get up to today?

Posted on 2015-10-15, 13:26

by

by Skyscraper

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Upgraded my Intel 233mhz system to AMD K6-2 550 (Only seeing it as 522mhz, as my 100mhz frequency jumpers seem to be at 95mhz, but it's still a nice upgrade.) Many boards have a 95 MHz setting for the K6-2 333/380/475 and K6-2+ 570, some odd Cyrix 686/M1/M2 model also used 95 MHz FSB. Check the …

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Re: K6-III+ and motherboard voltage question

Posted on 2015-10-14, 20:55

by

by Skyscraper

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

If you have 4 jumpers controlling the voltage and the 2.2V setting is set with Open-Closed-Open-Open then your V-core jumper block probably works as I described. Using the documented 2.2V setting is the safer route.

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Re: My Pentium MMX machine

Posted on 2015-10-14, 20:44

by

by Skyscraper

in Marvin \ System Specs

in Marvin \ System Specs

Do not overclock the Geforce 2 Ti as I think the 3.3V VRM circuit for the AGP is already heavy loaded as it is. I'm not planning to overclock it, but it's good to know that :happy:. I also have a GF 2 MX somewhere, do you recommend me to swap the Ti for the MX? I suppose that the MX needs less …

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Re: K6-III+ and motherboard voltage question

Posted on 2015-10-14, 20:22

by

by Skyscraper

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

2.2V is OK but you need good cooling and dont go higher than 2.2V. At that voltage the CPU will likely run fine at 6x100 MHz, 5.5x100MHz is guaranteed. Normally a motherboard that can do 2.2V also can do 2.0V, but the setting isnt always documented. Often you have 4 jumpers, the first jumper adds 0. …

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Re: K6-2 / K6-3 best AGP 1x/2x card

Posted on 2015-10-14, 20:03

by

by Skyscraper

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Im using a Voodoo Banhee AGP with my PC Chips M577 VIA MVP3 motherboard, the performance is as exptected, no wierd glitches. With my Gigabyte GA5-AX running a K6-3+ I tried to use a PCI Voodoo III but the performance wasnt what it should have been which was very irratating as I had benched every …

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Re: My Pentium MMX machine

Posted on 2015-10-14, 18:31

by

by Skyscraper

in Marvin \ System Specs

in Marvin \ System Specs

This seems like a nice build 😀 I also like the motherboard layout, for me two ISA-slots are enough in a Socket-7 system. Do not overclock the Geforce 2 Ti as I think the 3.3V VRM circuit for the AGP is already heavy loaded as it is.

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Re: What retro activity did you get up to today?

Posted on 2015-10-14, 16:57

by

by Skyscraper

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I sorted some CPUs I have bought in bundles. I have figured out some Ebay code. Some CPUs have some bent pins = Someone has stepped on most CPUs. All pins OK = All pins are still there. No bent pins = I can not see any bent pins... without my glasses. It is fortunate that my favorite spare time …

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Re: Bought these (retro) hardware today

Posted on 2015-10-14, 15:09

by

by Skyscraper

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I love these late-era 486 boards - they cram so much into them. My first one was an Abit PB4 (not to be confused with the P4B!), a very similar looking socket 3 PCI board. Not much space for cache chips though. Yea they are awesome, I need to get some 1Mbit cache chips so I can upgrade boards like …

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Re: Bought these (retro) hardware today

Posted on 2015-10-14, 14:27

by

by Skyscraper

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I bought another Lucky Star LS486E. The board was $38 with an Am5x86-P75 so I could not resist. The bundle is from the seller who had a Cyrix 586 120MHz on Ebay yesterday but luckily some other (member?) had already bought the Cyrix 586 or I would probably bought it as well. I say luckily as …

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Re: am5x86-p75 vs Pentium Overdrive 83

Posted on 2015-10-12, 19:29

by

by Skyscraper

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Some motherboards like Asus PVI-486SP3 with old BIOS flash chips that dosnt support the newer BIOS version needed for 5x86 support wont work correctly with the 4x multiplier (it hangs at HDD initialization when you do a soft reboot). The 5x86s 16KB write back cache works fine with the Asus board …

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Re: PS/2 Bracket for Asus Motherboard Header

Posted on 2015-10-11, 20:47

by

by Skyscraper

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

This thread is only a year old so its hardly a necro :P I just want to add another version of the color coding in case someone ends up finding a similar PS/2 bracket to mine. The only wire colour that makes sense is the yellow for +5V and thats the only wire I diddnt have to move around. It seems …

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Re: Cyclone 386 chipset

Posted on 2015-10-11, 12:45

by

by Skyscraper

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The "BX Pro" and "BXcel" Slot-1 boards on the other hand are total crap and not stable at any FSB speeds other than 66 MHz although they were sold as 100 MHz FSB boards, I just got a second one! :) Why would you buy something so hideous? :lol: If I collect old hardware I only keep the good stuff. …

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Re: Cyclone 386 chipset

Posted on 2015-10-11, 12:32

by

by Skyscraper

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

From my early days of collecting PCs since 2011 I came across some bad quality PCchips boards as well as other brands. Remember the Socket A ones? The worst motherboard I ever owned was the PCchips M810LR-H. Also ECS was real bad too. The Socket A K7S5A was cruddy too but not as bad as the PCchips. …

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Re: What retro activity did you get up to today?

Posted on 2015-10-11, 12:13

by

by Skyscraper

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Im trying to figure out why my Asus PVI-486SP3 board wont run Quake 1.06 Trying to run Quake 1.06 in DOS 6.22 always results in a page fault. I have tried switching all hardware, CPUs (Intel DX2-66, Intel DX4-100 and AMD DX4-120), memory (lots of different FPM) and video cards (ISA, PCI and VLB …

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Re: Cyclone 386 chipset

Posted on 2015-10-11, 09:01

by

by Skyscraper

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

But I shouldn't really have any of the problems that Pcchips boards were known for? Was model made before they went bad? PC Chips are like other other brands, there are good boards and not so good boards and even good revisions and bad revisions. They always made cheap boards so their PCBs are not …

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Re: Bought these (retro) hardware today

Posted on 2015-10-10, 16:15

by

by Skyscraper

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Here is a picture of the VGA card I got with the 286 computer I bought as I needed the case for a 486 project. The systems motherboard posts but it seems battery corrosion has eaten up a couple of traces having to do with the keyboard as it wont respond to keystrokes and shows keyboard error at post …

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Re: 486 VLB UMC-Chipset, what is it?

Posted on 2015-10-10, 16:07

by

by Skyscraper

in Marvin \ System Specs

in Marvin \ System Specs

Here is my board, it seems I have the VRM so I guess I can run 3.3V CPUs without hassle! 😀 My board seems to work fine but the battery diddnt look very nice so I removed it. Filename TK8498F_486VLB_board.JPG File size 4.38 MiB Views 1967 views

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Re: 486 VLB UMC-Chipset, what is it?

Posted on 2015-10-08, 20:14

by

by Skyscraper

in Marvin \ System Specs

in Marvin \ System Specs

I will soon get one of these boards so I will see what kind of CPUs I can get running. I have an AMD 5x86-133p75 I could try as its an Evergreen 5V model. 😀

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Re: Bought these (retro) hardware today

Posted on 2015-10-08, 19:42

by

by Skyscraper

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I bought a 286 two weeks ago because I wanted the case for a 486 build as I reused exactly the same model of case for a 486 build close to 21 years ago. The 286 was made by a company named Moretec and had all its original parts. How can I be sure that its the original parts? Look at this image! …

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