Re: PicoMEM : Pi Pico on ISA, with full Memory and I/O bus access

Posted on 2023-05-24, 17:32

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by chiveicrook

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Awesome stuff! I've been musing about a similar card using Pico/RP2040 (fixed function though) but for AT era H/W. RP2040 chip is extremely versatile and quite fast even if slightly RAM limited. I've worked on a couple professional projects utilizing it to great effect. If only there were more than …

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Re: A question for those with years of experience with UPS systems.

Posted on 2022-06-08, 20:36

by

by chiveicrook

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Output shape is important for modern computer PSUs with active PFC, which require at least good sine approximation with short switchover time in case of power failure. Pure sine wave is naturally the best but not strictly required. Very old UPSes might not provide output that is good enough for …

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Re: A question for those with years of experience with UPS systems.

Posted on 2022-06-08, 09:46

by

by chiveicrook

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Oh wow that database of waveforms is horrifying! I'm amazed how well the devices cope that are plugged into them! I need to somehow scope out my Chineseium UPS now (although maybe I'd rather not know :D :D ) Well, as mentioned previously, things powered by SMPSes don't really care that much. Active …

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Re: A question for those with years of experience with UPS systems.

Posted on 2022-06-08, 06:00

by

by chiveicrook

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Pure sine wave is naturally the best but not strictly required. Problem is, that everything "not sine wave" is causing harmonics. Harmonics are the culprit for RF interference. And harmonics in turn can cause all sorts of trouble. Not necessarily in the PC itself, but it can affect auxiliary …

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Re: A question for those with years of experience with UPS systems.

Posted on 2022-06-07, 12:06

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by chiveicrook

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Like I said, I don't have any information on these UPS, but I'm pretty sure the sine wave output will be pretty good, probably better than most questionable brand UPS's, though I don't have an oscilloscope so no idea. Just for future reference, vast majority of UPSes provide "approximated sine wave …

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Re: A question for those with years of experience with UPS systems.

Posted on 2022-06-06, 06:26

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by chiveicrook

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Since Alcatel is a telco company I'd guess this unit spent last 20 years working 24/7 in a base station somewhere. Design looks dated, definitely 90s stuff (which is not necessarily bad) and might suffer from poor switching time. Not worth the risk IMHO. I'd try to find a used professional class APC …

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Re: Windows 2000 Pro only seeing 300Mhz from AMD K6 III+ @ 600Mhz

Posted on 2022-06-02, 06:53

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by chiveicrook

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

It's quite possible that Win2000 properly uses AMD's PowerNow! dynamic core frequency control. Did you try checking frequency of the cpu under heavy load?

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Re: Certificate Errors WinXP32

Posted on 2022-06-01, 06:45

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by chiveicrook

in Marvin \ Software

in Marvin \ Software

I don't think it's date and time issue even if error messages indicate so. More likely to do with expired CA certificates (required for SSL etc.) There are workarounds but I've never researched them so can't help much in that regard. Google around for "XP root certificate update" or "XP root …

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Re: 1994 AMD PC-net PCI II 10BaseT network card incompatible with my router?

Posted on 2022-05-27, 10:31

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by chiveicrook

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Cards based on AM79c970 should support auto MDI/MDI-x but this card definitely does not support auto negotiation - if you can't force the switch (or generally the other end) to 10mbit mode it might not work, especially in half-duplex. Best to force both the switch and the card to 10mbit/s full …

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Re: Promise Sata 150tx2 speeds windows 98

Posted on 2022-05-25, 16:12

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by chiveicrook

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I would recommend: IDE HDD Block Mode: Enabled Delayed Transaction: Enabled Other options I would turn on which won't have an effect on SSD speed but I would still recommend them: Assign IRQ for VGA: Enabled HDD S.M.A.R.T capability: Enabled Video BIOS Shadow: Enabled I wouldn't recommend "Assign …

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Re: Last modern PCI vga speed results

Posted on 2022-05-25, 12:08

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by chiveicrook

in Marvin \ Video

in Marvin \ Video

Maybe as said above, Wine d3d make use of modern calls to run as an old acceleration even with the unified shaders architectures and explaining these numbers but I don't understand why the same things doesn't happens in Win beside not really retrogaming oriented anymore with a very complex …

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Re: Last modern PCI vga speed results

Posted on 2022-05-25, 11:10

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by chiveicrook

in Marvin \ Video

in Marvin \ Video

While Linux vs Windows score difference might be interesting, is it possible to confirm that 3dmark via wine is actually rendering everything correctly? For all I know there might be significant shortcuts taken in wine's d3d implementation. It would be best to use opengl benchmark with both native …

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Re: Last modern PCI vga speed results

Posted on 2022-05-25, 07:40

by

by chiveicrook

in Marvin \ Video

in Marvin \ Video

While Linux vs Windows score difference might be interesting, is it possible to confirm that 3dmark via wine is actually rendering everything correctly? For all I know there might be significant shortcuts taken in wine's d3d implementation. It would be best to use opengl benchmark with both native …

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Re: PCI-X Compatible Sound Cards

Posted on 2022-05-23, 15:51

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by chiveicrook

in Marvin \ Sound

in Marvin \ Sound

If the board has both PCI and PCI-X slots, I think it's better to use the PCI slots for sound cards and leave PCI-X slots exclusively to actual PCI-X cards. The board I am using is the Supermicro X8DTN+, which unfortunately does not have any 32-bit PCI slots. -Brian This board is such an overkill …

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Re: PCI-X Compatible Sound Cards

Posted on 2022-05-23, 15:33

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by chiveicrook

in Marvin \ Sound

in Marvin \ Sound

There is apparently a Dell PCI-X SoundBlaster card, in the X-Fi family, but I can't confirm it's authenticity and I don't understand why Dell would ever request such a product from Creative Labs. https://jbsdevices.com/item/dell-0ct602-network-adapter?catchall&gclid= …

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Re: Best 128gb compact flash card

Posted on 2022-05-23, 15:08

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by chiveicrook

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

So I can put more stuff on it, So it will fit in a cf slot. I guess then that you are not really going to use them for OS related tasks but static storage, which is at least somewhat reasonable use case in this scenario (In one other post about CF cards I posted two links, which explain why CF …

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Re: Best 128gb compact flash card

Posted on 2022-05-23, 09:38

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by chiveicrook

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

So there aren’t any larger capacity ones that will operate best for pc use? I guess, how do I find the best 16gb one though… just simply look for “industrial” and that’s the one? 16gb might be too small, was really hoping for 128gb Why would you want such large capacity? I don't know where you are …

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Re: Help me find the perfect computer case.

Posted on 2022-05-21, 07:26

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by chiveicrook

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Long baby AT + full ATX and "as small as possible" are somewhat contradictory. Are slim cases a consideration or do you need full height card compatibility? Anyway, Silverstone FT05 would tick almost all boxes but it supports "up to" SSI CEB form factor and Tyan S1564 might not fit in there. EDIT: …

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Re: Delock 62495 MSATA to 44pin IDE Adapter Review

Posted on 2022-05-20, 14:19

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by chiveicrook

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

By the way, which SSD did you use? I'm guessing that the adapter was set to master? In the SatPro I used chinese Goldenfir brand 8GB mSata SSD at first (completely basic, without TRIM support), which I managed to quickly decimate (forgot to align partitions and did a lot of reinstalling and …

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Re: Delock 62495 MSATA to 44pin IDE Adapter Review

Posted on 2022-05-20, 10:19

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by chiveicrook

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Magnificent review! The bigger and much more worse problem however is the the complete incompatibility with Windows 9x/Me for reasons that are unknown. Technically speaking, it doesn't have to be the adapter necessarily - but I have tested Win9x/Me on many different 2.5" hard drives which worked …

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