Search results for AMD \ VOGONS

Re: AMD K6-III/400AHX and SY-5EMA+ overclocking questions...

Posted on 2020-01-01, 19:41

If you're really paranoid, one way to ensure you aren't overheating is to buy a big 'ol Socket 370 heatsink, and stick it on Socket 7. It's essentially a perfect match, and the TDP's of the 1GHz+ Pentium III's are much higher than SS7 CPUs at stock voltage, but even with the 2.6v I doubt it will …

Re: AMD K6-III/400AHX and SY-5EMA+ overclocking questions...

Posted on 2020-01-01, 21:11

by retardware

in Marvin \ General Old Hardware

I don't get it... why don't you buy a 500AHX? They are available for less than 10 euros.

Re: AMD K6-III/400AHX and SY-5EMA+ overclocking questions...

Posted on 2020-01-01, 21:43

by JSO

in Marvin \ General Old Hardware

@athlon-power The cpu cooler is pulled off from a S370 board and a Celeron 450 MHz and I'm using the Mx-4 already. I also strengthen the heatsink connectors to the socket connectors. I will try to reduce the voltage to 2.5V and do some stress tests. I have two K6-2 at 450 MHz one from 1998 and one …

Re: AMD K6-III/400AHX and SY-5EMA+ overclocking questions...

Posted on 2020-01-01, 22:05

by retardware

in Marvin \ General Old Hardware

@retardware I cannot find a K6-III 500/AHX on ebay. I found a K6-III+ 400/ATZ (1.6v reaches 600 MHz at 2.1V) model. But it is very expensive. 135.00 € asks the seller. Ooops, didn't notice that you were about K6-III+... thought K6-II And...ouch! The prices have gone crazy. I should have kept my K6- …

Re: AMD K6-III/400AHX and SY-5EMA+ overclocking questions...

Posted on 2020-01-01, 22:32

by athlon-power

in Marvin \ General Old Hardware

@retardware I cannot find a K6-III 500/AHX on ebay. I found a K6-III+ 400/ATZ (1.6v reaches 600 MHz at 2.1V) model. But it is very expensive. 135.00 € asks the seller. What the Hell? Who is going to spend that much money on a friggin K6-III (no offense to the K6-III, but seriously)? You could build …

Re: info about "Am5x86-P75 AMD AM486DX5-133W16BHC Chip"

Posted on 2020-01-02, 00:03

by mwenek

in Marvin \ General Old Hardware

Hey all. I have one of these versions of the Am5x86-P75 (refer to photo!) Any idea what the cut wires lead to? My guess is an old fan that was cut off as it is an Evergreen Overdrive model. I appreciate any insight before I fire it up. Edit: Does the WB/WT cache option on this chip itself refer to …

Re: info about "Am5x86-P75 AMD AM486DX5-133W16BHC Chip"

Posted on 2020-01-02, 07:10

by appiah4

in Marvin \ General Old Hardware

Pass-Through is probably for disabling Cache, which was not too uncommon as a lot of cheap boards shipped with no cache installed at all.

Re: info about "Am5x86-P75 AMD AM486DX5-133W16BHC Chip"

Posted on 2020-01-02, 08:32

by mpe

in Marvin \ General Old Hardware

This is almost certainly setting for L1 cache. Don't have experience with this particular adaptor. But I am not sure disabling cache is what the "pass through" means. That wouldn't make any sense and not sure if a passive adaptor even could do that. I would read it as "do not do anything" or " …

Re: AMD K6-III/400AHX and SY-5EMA+ overclocking questions...

Posted on 2020-01-02, 08:48

by JSO

in Marvin \ General Old Hardware

Yes prices for K6-3s are very crazy, even for the K6-2s. But... The SS7 It's the best platform for Windows 9x and pure DOS. I have two PIIIs at 550 MHz, Coppermine and Katmai for Slot 1 and the very good Aopen AX6BC plus motherboard, but due to locked multipliers of the cpus, SS7 is the best …

Re: AMD 5x86 X5-133 (now with POD)

Posted on 2020-01-04, 15:33

by derSammler

in Marvin \ System Specs

Since these things are not really related, I would guess the PSU has weak caps and can not provide stable 5V when the POD is installed, making some components fail or not working correctly. Try a different PSU.

Re: AMD 5x86 X5-133 (now with POD)

Posted on 2020-01-04, 15:52

by theplum

in Marvin \ System Specs

Since these things are not really related, I would guess the PSU has weak caps and can not provide stable 5V when the POD is installed, making some components fail or not working correctly. Try a different PSU. O... in fact I am using a modern PSU (with ATX to AT adapter) which focuses on 12 v. So …

Re: AMD 5x86 X5-133 (now with POD)

Posted on 2020-01-04, 16:04

by derSammler

in Marvin \ System Specs

Well, you would need to test it with a different PSU first. It may not even be the culprit, but you won't know before testing. Don't you have another PSU?

Re: AMD 5x86 X5-133 (now with POD)

Posted on 2020-01-04, 16:26

by theplum

in Marvin \ System Specs

derSammler wrote on 2020-01-04, 16:04: Well, you would need to test it with a different PSU first. It may not even be the culprit, but you won't know before testing. Don't you have another PSU? Well...I have other PSUs but they are in use so I can only try them out tomorrow...

Re: AMD K7 Slot A 1000 Orion 512KB Cache working, Slot A 1000 Thunderbird 256KB Cache NOT

Posted on 2020-01-05, 00:42

by dionb

in Marvin \ General Old Hardware

Sure you had that Thunderbird working on that specific motherboard? The Via KX133 chipset was notorious for having compatibility issues with Thunderbird CPUs...

Re: AMD 5x86 X5-133 (now with POD)

Posted on 2020-01-05, 03:31

by theplum

in Marvin \ System Specs

derSammler wrote on 2020-01-04, 16:04: Well, you would need to test it with a different PSU first. It may not even be the culprit, but you won't know before testing. Don't you have another PSU? By the way, I have discovered that this item on my board is missing (indicated by the red circle). Can …

Re: AMD 5x86 X5-133 (now with POD)

Posted on 2020-01-05, 09:18

by derSammler

in Marvin \ System Specs

That black MOSFET? That shouldn't be missing, as it provides power for the CPU. Can you please share a picture of your board with a close-up of that section? Makes me wonder if it was once there or already omitted by the factory.

Re: AMD 5x86 X5-133 (now with POD)

Posted on 2020-01-05, 12:01

by theplum

in Marvin \ System Specs

That black MOSFET? That shouldn't be missing, as it provides power for the CPU. Can you please share a picture of your board with a close-up of that section? Makes me wonder if it was once there or already omitted by the factory. I have noticed that my M919 board version is v3.2. I tried to search …

Re: AMD K7 Slot A 1000 Orion 512KB Cache working, Slot A 1000 Thunderbird 256KB Cache NOT

Posted on 2020-01-05, 13:19

by Fallaxia

in Marvin \ General Old Hardware

Yes, I am sure I ran the Thunderbird with the AK72 board. I had it running with Debian Linux to do some testing, and the only thing that did crash the system was an openssl benchmark at the Camellia cipher. Everything else worked just fine. Now I barely get to boot the system to this point where I …

Re: AMD 5x86 X5-133 (now with POD)

Posted on 2020-01-05, 13:48

by CoffeeOne

in Marvin \ System Specs

I guess the missing MOSFET is no problem anyway, because you have a 5 volts CPU, so the voltage comes directly from the power supply. Having faults with PCI cards (but working with ISA cards) is a bad sign, your system is not trustworthy. CPU is normally not a problem, but be sure that you use 33MHz …

Re: AMD K7 Slot A 1000 Orion 512KB Cache working, Slot A 1000 Thunderbird 256KB Cache NOT

Posted on 2020-01-05, 15:15

by The Serpent Rider

in Marvin \ General Old Hardware

If it's not stable, maybe there are some capacitors to blame. Also it's possible that CPU voltage drops too low under load, which cause instability. Try to increase voltage. Thunderbird was miles ahead of Orion Thunderbird is not miles away. L2 cache performance is only marginally better. Also it …

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