Re: Athlon MP build!

Posted on 2016-02-01, 02:40

by

by gdjacobs

in Marvin \ System Specs

in Marvin \ System Specs

I remember a popular use for dual CPU systems back in the day was to run the dedicated server in parallel with the game client. Pretty much the only threaded game engines at the time were all Q3 derived. I only used the 760MPX chipset for compute jobs. Be interesting to see how well it does with …

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Re: Stupid Question about Syndicate and memsize

Posted on 2016-02-01, 02:36

by

by gdjacobs

in DOSBox Games/Apps

in DOSBox Games/Apps

I've never noticed that problem with Syndicate or American Revolt. What release of DOSBox are you using?

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Re: K6-2 500 underclock @ shuttle HOT597

Posted on 2016-02-01, 01:12

by

by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

That's how Phil achieved that clock, then.

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Re: K6-2 500 underclock @ shuttle HOT597

Posted on 2016-01-31, 23:59

by

by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Can 1.5 and 2 be selected on K6-2+ and III+ CPUs using SETMUL?

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Re: A tale of two PSUs

Posted on 2016-01-31, 23:54

by

by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Explain how. It's kind of irrelevant to many newer PSUs because they''ve been moving from the switch to a wide range input with no switch. I would still like to know how PFC prevents overvolting the front end of PSUs with the switch. . That was what, with my tongue in my cheek, I was referring to. …

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Re: A tale of two PSUs

Posted on 2016-01-31, 19:51

by

by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The only consequence of using PFC to the PC owner is that it makes the system incompatible with the less costly UPS units. It does not improve the efficiency of the system. It improves the efficiency of your power meter and the power grid. It came upon us by laws passed in the EU that were pushed …

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Re: Loose VGA port on EP-MVP4A motherboard

Posted on 2016-01-31, 19:50

by

by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Can you show the other side of the jack? I'm curious how the strain relief let go.

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Re: A tale of two PSUs

Posted on 2016-01-31, 14:30

by

by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

EMI suppression can plus a MOV and some spare caps. Excellent. I don't see a coil for PFC. Is it hidden or not featured?

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Re: A tale of two PSUs

Posted on 2016-01-31, 14:15

by

by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Spark gaps and a zener! Someone wears belt and suspenders at Channel Well.

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Re: New retro-PC

Posted on 2016-01-31, 07:31

by

by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Waiting to receive the "new" PC (what a pleasant shiver thinking again on the DOS prompt!) I'd like to take advantage for some new questions: - FreeDOS or MS-DOS? I really like the idea of using a FOSS OS, but since I still have the three floppies of MS-DOS 6, there are some practical or technical …

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Re: I recently found this hardware, AKA the Dumpster find thread.

Posted on 2016-01-31, 01:34

by

by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I did a little looking. The 300W unit may not be as susceptible to 5V SB overvoltage. Still pretty crappy, though, with shitty caps and shitty transient suppression. Plus, who knows what kind of protection has been built into the platform as the 250W had almost none.

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Re: PSU - bust the myth

Posted on 2016-01-31, 01:26

by

by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Indy = Independently regulated, adjusting one voltage output (12V for instance) does not necessarily change the 5V or 3.3V supply voltage DC-DC = switch mode step down (buck) converters are used to create the 5V and 3.3V outputs from the 12V supply

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Re: PSU - bust the myth

Posted on 2016-01-30, 22:03

by

by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Delta's workmanship is also generally immaculate.

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Re: I recently found this hardware, AKA the Dumpster find thread.

Posted on 2016-01-30, 21:28

by

by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Those Bestec supplies are notorious hardware killers. I'm not surprised it's causing issues.

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Re: New retro-PC

Posted on 2016-01-30, 13:31

by

by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Usually not a big deal. Depending on the motherboard, it may have a PS/2 mouse header that you can use. Brackets can be found on Ebay, but pinouts were non-standard so they usually require testing to ensure the plug conforms with the board. You can also purchase inexpensive AT to PS/2 adapters for …

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Re: PSU - bust the myth

Posted on 2016-01-30, 13:25

by

by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Or via adapter: http://www.extech.com/instruments/product.asp?catid=50&prodid=547 I disagree about shunting being the cheapo way. You can use inline Hall sensors in place of shunt resistors if you want to mod the wiring or build adapters. They start at 1.64 USD (one supplier) for an SMT part. …

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Re: New retro-PC

Posted on 2016-01-30, 13:12

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by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

25 euro was a good deal for you IMO. The ESS 1868f is a good sound chipset as well.

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Re: Humour Thread: Outrageously priced retro gear for sale online

Posted on 2016-01-30, 09:24

by

by gdjacobs

in Milliways

in Milliways

Dammit, I should have kept those AOL diskettes. Who would have known the potential value! http://www.ebay.ca/itm/AOL-CD-FLOPPY-DISC-LOT … JwAAOSwBP9UVSkx

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Re: PSU - bust the myth

Posted on 2016-01-30, 09:18

by

by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

What's wrong with this method? http://www.xbitlabs.com/articles/graphics/display/ati-powercons_2.html Sensitivity will be quite poor (they're using a low resistance to prevent excessive voltage drop). Hall sensors have very little parasitic impact on the circuit and are selected based on the …

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Re: PSU - bust the myth

Posted on 2016-01-30, 05:19

by

by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

You would need an ammeter. Ideally with an inductive pick-up. Even with the dedicated power cable(s) they still simultaneously pull power from the slot so unless you are going to assume that part you need a more complicated test fixture. Wasn't there a thread about that a week or so ago? . Not an …

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