Re: How does a motherboard know which voltage to supply to a CPU?

Posted on 2022-06-11, 05:06

by

by shamino

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The VID is really 5-bit with VRM regulator chips that are used with P2/P3/SS7, but that doc only shows 4, I guess because the upper bit had lost relevance by then. With a 5-bit VID the upper bit locks you into a range above or below 2.0V. If you're using jumpers it can be a good idea to put a red …

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Re: What do you drive?

Posted on 2022-06-10, 23:25

by

by shamino

in Milliways

in Milliways

More to the subject, I wish my Fiero had an overdrive trans. For some reason they were slow to adopt that in the 80s. Where I live now though, I don't drive at highway speeds enough for it to matter much. In California it would have been very helpful. Just got back from getting 2 tires mounted on …

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Re: What do you drive?

Posted on 2022-06-10, 23:24

by

by shamino

in Milliways

in Milliways

I can't afford the EV lifestyle. I can't afford where the price of electricity will be headed either. I'm not an environmentalist, I just care about money. There's been enough volcanoes and I've been in too many forest fires to buy into the hysteria about my neighbor's tailpipe. Excessive …

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

Posted on 2022-06-03, 04:01

by

by shamino

in Milliways

in Milliways

In light of video card prices and lack of spending money, I decided to up-downgrade..futuregrade? my main PC's video card from a GTX285 to a GTX550Ti that was left in an abandoned system. The 550 isn't as powerful as the older card, but it supports DirectX 11 so it's more compatible with things I …

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Re: Did you create maps for games?

Posted on 2022-05-31, 18:05

by

by shamino

in Milliways

in Milliways

The best, most obsessive games are the ones that go out of their way to be highly moddable. DOOM, Quake series, Elder Scrolls, etc. I'm now into Assetto Corsa for the same reason. At first I was lukewarm about the game because of it's focus on modern European "hypercars" that I don't care about. But …

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Re: AGP video card blanks in and out, possible causes?

Posted on 2022-05-09, 20:33

by

by shamino

in Marvin \ Video

in Marvin \ Video

I've had this problem with some video cards on some LCD monitors. Try switching monitors, try a CRT if you have one.

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Re: GPU Suggestions?

Posted on 2022-05-05, 21:27

by

by shamino

in Marvin \ Video

in Marvin \ Video

Are you using DDR400 memory modules? Are you using a Mobile CPU? I'm looking at the manual to get an idea of what the BIOS settings look like. Under Standard CMOS Features -> System Information what does it say for your CPU Information, especially the numbers in parenthesis after the CPU Frequency? …

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Re: S3 Virge/GX Repair

Posted on 2022-05-05, 10:56

by

by shamino

in Marvin \ Video

in Marvin \ Video

This is the first time I've read of someone repairing a Virge card. But it's also the first time I've read of one dying. Good save. 😀

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Re: Slot 1 Pentium III 1000MHz registry loop issue in Windows 98SE

Posted on 2022-05-04, 22:52

by

by shamino

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Additionally (maybe relatedly?): This board's method of changing the FSB configuration is very different to the Socket 370 boards I have. The Socket 370 boards just need a jumper or DIP switch (or couple) switched, and it just simply runs the CPU slower accordingly. However, this board has the DIP …

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Re: Difference of K6-III+ low voltage version.

Posted on 2022-04-28, 22:49

by

by shamino

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

From looking documented jumpers on my motherboard it just feels like base voltage is 2.0V with all jumpers open and closing jumpers just add 0.1V, 0.2V, 0.4V and 0.8V to that so closing all of them would make it 3.5V total. On an Intel spec compliant voltage regulator I believe 2.0V is the minimum …

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Re: Difference of K6-III+ low voltage version.

Posted on 2022-04-28, 10:20

by

by shamino

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

What socket 7 motherboards can reach to 1.8V and 1.6V voltages? Only motherboards I have that can run these cpus dont go lower than 2V. My 1.6V 400Mhz part also seems runs fine at 550Mhz at 2V, but after if I do "setmul 6" all dos programs I try to run crash with errors like "division by zero" and …

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Re: Difference of K6-III+ low voltage version.

Posted on 2022-04-27, 23:34

by

by shamino

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

These numbers are from memory, but I think it's correct: AMD's datasheet lists 3 low voltage versions of the K6-3+ 400MHz 1.6V 450MHz 1.7V 500MHz 1.8V The faster parts from that list were guaranteed to also run at the lower speed/voltage settings. This means the highest quality parts were supposed …

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Re: How much time do you have to wait to open a PSU without any risk ?

Posted on 2022-04-26, 12:33

by

by shamino

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Unplug with power on will probably discharge it but don't rely on that. After opening, measure heatsinks and the large high voltage caps with a meter. If voltage is still high, wait or bleed them down with a resistor or short them as preferred. Measure again and after the voltage is low, short the …

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Re: Which motherboard to use with a GeForce 7800 GS AGP

Posted on 2022-04-25, 09:22

by

by shamino

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I haven't tried the 7800GS but I know the 7600GS AGP works perfectly well with i865 and i875 chipsets. I've used it with both of those as well as an nForce2 without issue. The same 7600GS had totally repeatable artifacting issues when I tried it with an older VIA 694X (P3) chipset. I believe it was …

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Re: Best (Super) Socket 7 motherboard?

Posted on 2022-04-25, 08:44

by

by shamino

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Does anybody have more info on EPoX EP-51MVP3E-M . Good, bad or in-between? It has 1MB of L2 and supports K6-3+ / 127GB disks with latest bios. It's either that or DFI K6XV3+/66 [512KB L2]. Never seen the DFI but I had that EpoX board many years ago. I liked it. There's an AGP 1X/2X setting in the …

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Re: Is it possible to build a Retro Rig that will run BUILD Engine games at 1280x1024 @ 60FPS?

Posted on 2022-04-20, 23:51

by

by shamino

in Marvin \ Video

in Marvin \ Video

I wonder if memory speed is a major factor. Is there a big jump in high res DOS performance from having DDR memory instead of SDR?

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Re: PC crashing in BIOS help?

Posted on 2022-04-19, 10:56

by

by shamino

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Onboard sensors are unreliable, sometimes they show things that are wildly incorrect. Best to check with a multimeter to find out what the voltage really is. If it really is 13.8V then that's dangerously high, but it might be a false alarm. 12V and 5V are easy, just probe them from a 4-pin drive …

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Re: Broken B bank memory slot

Posted on 2022-04-19, 04:59

by

by shamino

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Creative used cheap RAM sockets with plastic retaining clips on the AWE32. But it's Creative so I guess that's no surprise. I broke one a few months ago despite trying to be careful. No respectable manufacturer should have ever had those in their inventory.

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Re: Fastest motherboard that accepts a Voodoo 5500?

Posted on 2022-04-16, 22:34

by

by shamino

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I remember seeing those Shuttle cases at Fry's way back when. They look nice.

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Re: Asus P5A v1.06 Booting Issues

Posted on 2022-04-15, 01:05

by

by shamino

in Marvin \ Video

in Marvin \ Video

Sorry if this is too basic, but are you sure your monitor will pick up VGA from anything else? You mentioned only DVI has worked so far. If you have a multimeter then try checking voltages, see if they look good and not fluctuating under load. Ideally you could try to measure voltages on the video …

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