meljor wrote:

MMX runs fine with 3,3v. Just use a good cooler to make sure it will not get too hot.

Thanks. Do I understand correctly that the purpose of the two jumpers in the VRM socket is to directly bridge Vin pins (3.3) to Vout?

xjas wrote:

Look what I found hanging on the "wall of crap" at one of my usual haunts today:

CameraZOOM-20190930165952856.jpg

A bag of retro CPUs! Whaaaaaat?! Of course I bought it.

is this a joke??? just like that, on the store 3.99$?

Turbo -> wrote:

I got two floppy units, but are a little different from others floppy units: Sony MP-FP53W.

Is that a 3 inch diskette drive from an electric typewriter or is it a normal 3.5" drive? I love the look of that thing but I have my doubts that it's PC compatible. Would be perfect in an XT.
Are both drives the same?

FAMICOMASTER wrote:

Is that a 3 inch diskette drive from an electric typewriter or is it a normal 3.5" drive? I love the look of that thing but I have my doubts that it's PC compatible. Would be perfect in an XT.
Are both drives the same?

Both are the same. They look the same size, when I compared them with 3,5" drives. I only inserted diskette in it and took it out, just to see if it can take it 😀 It does. However I didn't try them yet in a working computer.

Turbo -> wrote:

FAMICOMASTER wrote:

Is that a 3 inch diskette drive from an electric typewriter or is it a normal 3.5" drive? I love the look of that thing but I have my doubts that it's PC compatible. Would be perfect in an XT.
Are both drives the same?

Both are the same. They look the same size, when I compared them with 3,5" drives. I only inserted diskette in it and took it out, just to see if it can take it 😀 It does. However I didn't try them yet in a working computer.

I found a really nice original manual for them here: http://www.bitsavers.org/pdf/sony/floppy/9-97 … tions_Sep85.pdf

Looks like ordinary 34 pin MFM 😀

Ooo, very cool. I may have to pick one up and a matching 5.25 bracket to put in my turbo XT

So I accidently started looking at motherboards again, and accidently saved a few to my watch list, and accidently set a reminder so that I remembered to bid, and accidently placed a bid, and then accidently won it 😒

It's an ASUS P3V133. It comes with a slocket with a 800MHz / 133FSB 1.7volt CPU, 384mb of RAM and a mystery graphics card. I only put a bid of £21 or so, but got it for £18 + £4 or so for delivery.

It turns out it's a TNT2 M64 32mb (seems like an odd combination... perhaps it's just marketing reasons!)

I was regretting this purchase until I found my 1GHz coppermine CPU which should maybe work in the slocket. Same FSB, same volts... I also dug out my big-ass cooler and sound blaster live. I can feel my fastest ever W98 PC coming along!

edit - for once something has gone to plan! The 1000MHz was picked up straight away after setting the jumpers. My cooler will need a smaller fan as it touches the RAM module when only using the right hand slot.

It also has SECC to SECC2 mounting adapters which I didn't know existed and you'll have to pry them out of my cold, dead hands before I let them go.

mpe wrote:

Good stuff!

I have an almost exactly the same [AMD K5] chip in my collection.

I believe this is the early version which had branch prediction unit disabled. So it performs a bit worse than K5 branded chips. But still should be a little faster than Intel P75.

Interesting... I don't particularly need a 75MHz CPU to be "fast", but is there a util (a la Cyrix) that enables the branch predictor? Any issues doing so? I'm gonna have to add a few results from this beastie to my benchmarking sheet.

retropol wrote:

xjas wrote:

Look what I found hanging on the "wall of crap" at one of my usual haunts today:

CameraZOOM-20190930165952856.jpg

A bag of retro CPUs! Whaaaaaat?! Of course I bought it.

is this a joke??? just like that, on the store 3.99$?

I know, I couldn't believe it either. That's why I took the picture. I've seen the odd graphics card or sticks of RAM hanging there, but never a bag of CPUs, and never anything as rare as these ones are these days.

I did swing by again this afternoon for a better 'dig', but I didn't see anything related or anything else interesting. Was hoping for some other choice goods from the same donor.

Saved from the crusher today.

HanJammer wrote:

Saved from the crusher today.

Thank you.

HanJammer wrote:

Saved from the crusher today.

Beautiful case, beautiful computer!

Almoststew1990 wrote:

So I accidently started looking at motherboards again, and accidently saved a few to my watch list, and accidently set a reminde […]
Show full quote

So I accidently started looking at motherboards again, and accidently saved a few to my watch list, and accidently set a reminder so that I remembered to bid, and accidently placed a bid, and then accidently won it 😒

I was regretting this purchase until I found my 1GHz coppermine CPU which should maybe work in the slocket. Same FSB, same volts... I also dug out my big-ass cooler and sound blaster live. I can feel my fastest ever W98 PC coming along!
edit - for once something has gone to plan! The 1000MHz was picked up straight away after setting the jumpers. My cooler will need a smaller fan as it touches the RAM module when only using the right hand slot.

It also has SECC to SECC2 mounting adapters which I didn't know existed and you'll have to pry them out of my cold, dead hands before I let them go.

So a looooong line of accidents resulting in good stuff! 😎

Picked up a STB Velocity 4400 on Mercari for $6 last night. (Nvidia Riva TNT 16MB)

Last weekend I managed to get my first SS7 board with K6-2 333 and ATI Rage PCI + as a bonus combined Slot1/S370 board with Celeron 400 and Voodoo Velocity.

Wolfus wrote:

Last weekend I managed to get my first SS7 board with K6-2 333 and ATI Rage PCI + as a bonus combined Slot1/S370 board with Cele […]
Show full quote

Last weekend I managed to get my first SS7 board with K6-2 333 and ATI Rage PCI + as a bonus combined Slot1/S370 board with Celeron 400 and Voodoo Velocity.

Looks like PC Partner MVP3BS7-954. If the motherboard has a 2 Mbit BIOS chip, it could be flashed with the latest BIOS for full AMD K6Plus support.

Thanks for info! I found there are two types of BIOS, but I don't know how to identify which one is on my board. Partnumber is the same for both types...

Wolfus wrote:

Thanks for info! I found there are two types of BIOS, but I don't know how to identify which one is on my board. Partnumber is the same for both types...

Try running UNIFLASH its good at identifying bios chips.

appiah4 wrote:

Try running UNIFLASH its good at identifying bios chips.

Interesting, never used Uniflash, thanks.
BTW, I've found manual. There are factory-set jumpers identifying type of installed BIOS. I should have 2mbit 😀

oooh good to know about uniflash! Thanks

Predator99 wrote:

Cyrix200+ wrote:

Predator99 wrote:

Adlib looks good, I have learned the date code on the Yamaha is important, but difficult to read. […]
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Adlib looks good, I have learned the date code on the Yamaha is important, but difficult to read.

I have just bought 10 of these boards and some other nice things (sellers photo) - of course I dont need that many. They seem to be boards from a PHILIPS PC-XT (5107). CPU, ROM, RAM-sockets and crystals are missing. Seems to be easy to replace and after removing the COM/LPT connectors this may fit in a standard case. Think 8-bit IDE and Floppy is onboard. Hope a standard BIOS will do the job and I get this running 😀

xta.jpg

xtb.jpg

I think I have one of those systems, give me a shout if you need the BIOS.

Thanks, I would be really happy about this!!! I will let you know when I am ready to test...

Received my XT-Boards today. All was packed in a box without any protection (together with some harddisks and a complete 286-PC - photos later). Strange, all are missing the RAMs and several other components. I already picked one which seems to be complete except the RAM, populated with a 8088, CGA and Supersoft-ROM and it seems to be running (except the RAM of course...). I will keep only 1-2 of these boards...
So Cyrix200+, I would be very happy about a ROM-image. Think I need it to use the 8-bit IDE and floppy interface.