Re: Retrobrite + grow light

Posted on 2018-12-29, 11:03

by

by feipoa

in Milliways

in Milliways

Here's the light assembly, ballast, bulb, and solution. Its a 400 watt bulb. It appears to have a spectral peak at the ultra-violet boarder. I hope this is adequate for a 5 hour run. I don't want to run it 24-hours. Filename Bulb_and_solution.jpg File size 522.71 KiB Views 2193 views Filename Light …

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Re: Retrobrite + grow light

Posted on 2018-12-29, 03:07

by

by feipoa

in Milliways

in Milliways

Attached is an image of what I plan on whitening up. I've shown it next to a non-yellowed drive bezel to offer perspective. Yellowed_5.25_inch_drive.jpg EDIT: I have some items which have printing over areas needing retrobrite. Will the printed lettering come off in the process? Yellowed_bezels.jpg …

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Re: Retrobrite + grow light

Posted on 2018-12-29, 02:35

by

by feipoa

in Milliways

in Milliways

I'm probably going to do a test sample of retrobrite this evening. I have a used grow light that I'll setup in the garage, though our garages have windows and I'm concerned how this might appear with blue light coming out in the midnight hours. I don't want to be woken up by cops. At any rate, has …

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Re: Daewoo AL486V-D BIOS needed

Posted on 2018-12-27, 22:00

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Nobody have this BIOS? Apparently "299" is version 1.9. Attached is an image I found online. Filename WinPro-d_version_1.9_299.jpg File size 37.41 KiB Views 1202 views

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Re: Overclocking with a TI486 SXL-40 to a TI486 SXL2-50

Posted on 2018-12-24, 10:23

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The TI486SXL2 is a 3.3V part actually. TI offered it as 3.3V only, 3.3V with 5V tolerant I/O and 5V only. Clock speeds were the same and the manufacturing process was also the same, so it was down to their marketing dept what label to put on. Although 5V made for the power consumption almost 3 …

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Daewoo AL486V-D BIOS needed

Posted on 2018-12-24, 08:28

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I have one of these boards with version 298A BIOS, however, I see one of these motherboards on eBay with version 299 BIOS. Anyone have BIOS version 299 or later from a Daewoo AL486V-D and can share the image? Stickers with 295 on them have BIOS identification string: 26XYR version 1.4 Stickers with …

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Re: AMD Athlon Thunderbird 1000 MHz Slot A and Epox 7KXA Rev. 0.4 VIA KX133 stability problems

Posted on 2018-12-23, 09:47

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Did you try an Orion-based, 1 GHz slot 1 in the motherboard you are having trouble with?

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Re: AMD Athlon Thunderbird 1000 MHz Slot A and Epox 7KXA Rev. 0.4 VIA KX133 stability problems

Posted on 2018-12-22, 19:51

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

When I compared various Orion slot A's on a KA7 motherboard (based on VIA KX133), I noticed that the 1 GHz Orion kept hanging up. When I swapped out the heatsink for a heavy copper monster with noisy fan, the 1 GHz Orion stopped hanging. Perhaps your issue is cooling related; or perhaps not. Worth a …

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Re: Overclocking with a TI486 SXL-40 to a TI486 SXL2-50

Posted on 2018-12-21, 19:30

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

From the cyrix.exe -q screenshot, the L1 cache is enabled by default (-e), however the whole memory range is set to non-cacheable (thus -i1 is needed, and only -i1). It is OK to omit the -e statement in there if you wish, or you can remove it. Given the age of the computer, I'd leave it. From a …

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Re: Overclocking with a TI486 SXL-40 to a TI486 SXL2-50

Posted on 2018-12-20, 17:21

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Could you please provide a screenshot with cyrix.exe -q prior to running any command line? The command-line options needed depend on what your system BIOS is setting up by default. For example, you might not need -e, you might need -i1 -i2 -i3 -i4, etc. There is generally little benefit in using …

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Re: Overclocking with a TI486 SXL-40 to a TI486 SXL2-50

Posted on 2018-12-18, 20:48

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

For these tests, do not use DRAM. Play with DRAM after we get the corruption taken care of. I think your issues are related to caching conventional memory in Windows. You cannot do this with the SXL in Windows. Please try this on a fresh boot, in this order. Please run all 3 lines right after the …

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Re: Overclocking with a TI486 SXL-40 to a TI486 SXL2-50

Posted on 2018-12-18, 08:26

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I have never witnessed any performance improvement with pipelining. I think I used CTCHIP34 to enable pipelining. The cyrix.exe utility has a lot more easy to enable/disable features than the other programs. So you ran Cyrix.exe -m- and it did nothing? Can you run Cyrix.exe and display your …

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Mixed-mode 128kx8, 5V/3.3V SRAM in DIP-32

Posted on 2018-12-17, 19:37

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Has anyone seen mixed-mode (5V in, 3.3V out) 128kx8, DIP-32 SRAM? Strangely, I own 4 pieces of UM61M1024K-15, which should be mixed-mode 128kx8, but I need 4 more. I've never been able to find these. Are there other valid part numbers that you know of?

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Re: Anyone with an ATI FireGL X1 256M AGPPro?

Posted on 2018-12-17, 19:02

by

by feipoa

in Marvin \ Video

in Marvin \ Video

Received refund for the two cards. Seller didn't want them sent back. Is there any salvageable parts on these? Maybe the DVI connector? They are pretty bulky to store in my broken PCB box, so might be headed to e-waste.

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Re: ECS SI54P-AIO hangs on boot - help!

Posted on 2018-12-17, 11:20

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I found a work around for getting the Cyrix 6x86 working on this motherboard. You must use the original Jan 1995 Phoenix BIOS and you must set the "system BIOS cacheable" to disabled. The BIOS will report the CPU as a Pentium 100, but cachechk shows the proper benchmark speeds for a Cyrix 6x86. So …

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Re: PCchips M915i not posting

Posted on 2018-12-17, 07:42

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

PC Chips spent the money for a UV erasable EPROM? That surprises me. I think mine came with a OTP EPROM.

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Re: Overclocking with a TI486 SXL-40 to a TI486 SXL2-50

Posted on 2018-12-17, 06:14

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

uscleo, download the SXL control utility I use (attached), then check out this thread: Register settings for various CPUs

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Re: ECS SI54P-AIO hangs on boot - help!

Posted on 2018-12-17, 06:10

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I suppose if I had sufficient past experience or sufficient study time, which I don't. Alternately, someone might come along with a newer BIOS. What is interesting is that the AMD K5 works with the middle two BIOSes shown above. I have a theory about why - the K5 ignores the fixed 1.5x multiplier …

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Re: Overclocking with a TI486 SXL-40 to a TI486 SXL2-50

Posted on 2018-12-17, 03:48

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The PGA-132 native variant of the SXL2 is 5V. Your VGA issues may be related to 0 WS. Can you sent "no 0 WS". They may also be related to how you setup the SXL. You may need to set it so that it doesn't cache 1 MB boundaries, e.g. cyrix.exe -m-

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Re: Anyone with an ATI FireGL X1 256M AGPPro?

Posted on 2018-12-17, 03:27

by

by feipoa

in Marvin \ Video

in Marvin \ Video

The pair of cards which had artifacts have been returned. When I had them in possession, I did try pressing the memory chips, but nothing changed with the artifacts. The second pair of cards I currently have in possession do not contain artifacts. The screens stay blank.

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