red-ray wrote on 2020-05-14, 13:59:

Wow, I did not know PPros would work with a 440LX chipset! Does your board have the optional LM78 sensor chip ?

Please will you try ..

I run W2k. And my board do have that IC. Will run later, since the mobo is trying to run dual Mendocino 500 🥴

About PPro & iBX

Mentat-vvo wrote on 2020-05-15, 09:21:

red-ray wrote on 2020-05-14, 13:59:

Wow, I did not know PPros would work with a 440LX chipset! Does your board have the optional LM78 sensor chip ?

I run W2k. And my board do have that IC. Will run later, since the mobo is trying to run dual Mendocino 500 🥴

About PPro & iBX

Thank you and W2K should be fine, use SIV32L, SIV should report the LM78 sensor chip readings and if it doesn't I will fix it.

I would also be interested in SIV save files from the ASUS P2B-F PPro system, ideally use any of NT4/W2K/WXP

Orkay wrote on 2020-05-14, 15:02:

From what I've heard here, the Pentium Pro can work on 440BX boards, too. If I had some Socket 8 adapters for my P2B-DS, I'd be very much willing to compare a couple of SL259 CPUs running at a 66MHz and a 100MHz FSB.

Slotket8 copies (C-P6S1) will soon be available. But, you can not just put PPros into P2B-DS )) BIOS mod is required. I'm unable to PM for now because of the "newbie" status.

Mentat-vvo wrote on 2020-05-19, 12:25:

I'm unable to PM for now because of the "newbie" status.

I think you need to make 20 posts before you can send PMs.

I spotted you have 2x P3 Xeon 700-2M and wonder which motherboard you are using. I have 2x P3 Xeon 700-1M and am wondering if it's possible to get them to work in either an Intel MS440GX or MSI MS-6135. I recall trying maybe 10 years ago, but can't remember what happened.

Orkay wrote on 2020-05-14, 15:02:

red-ray wrote on 2020-05-14, 13:59:

Mentat-vvo wrote on 2020-05-14, 11:57:

Dual PPro-200/1M build. Asus P2L97-DS, asus C-P6S1 slotkets (original & clone).

Wow, I did not know PPros would work with a 440LX chipset!

From what I've heard here, the Pentium Pro can work on 440BX boards, too. If I had some Socket 8 adapters for my P2B-DS, I'd be very much willing to compare a couple of SL259 CPUs running at a 66MHz and a 100MHz FSB.

I have heard the same before too, but never seen it done.

This is S2DGE Slot-2 from Supermicro. Can handle up to Dual Cascades 900 /2M.

How are those CPUs supported? I don't see the brackets

Mentat-vvo wrote on 2020-05-19, 15:55:

This is S2DGE Slot-2 from Supermicro. Can handle up to Dual Cascades 900 /2M.

Thank you, I was hoping you knew a way to get 100 MHz FSB Cascades Xeons to work on one of the motherboards I already have. I found https://www.ebay.co.uk/itm/113739277180 and feel I should not spend that much on a Slot 2 system given I could get a far more desirable D5400XS for much the same cost.

I'd spend that much on that motherboard in a heartbeat. EXCEPT it doesn't appear to have the cpu support brackets. Something that can NOT be ignored with slot-2.

On top of that, I'd like to know how cooling might be achieved with Slot 2 Xeons. Often, retention brackets came with fans on the side, but when you don't have those... well, I'm not sure a single rear fan on the case is adequate to pull out the heat the CPUs will probably generate. The only thing I can think of is to strap a large fan somewhere on a side of the CPUs.

Maybe if Slot 2 retention brackets can be 3D printed, I might have a reason to get more P6-based Xeon hardware.

I'm actually considering getting a basic 3d printer for things like this. Also drive rails, faceplates, keyboard stems, and other random brittle pieces of plastic.

two 900mhz xeons generate as much heat as three slot-1 chips. (anecdotally) Its not like they are P4 chips.

luckybob wrote on 2020-05-19, 19:35:

I'd spend that much on that motherboard in a heartbeat. EXCEPT it doesn't appear to have the cpu support brackets. Something that can NOT be ignored with slot-2.

In years gone by I did and still have a boxed Supermicro S2QR6 4 x Slot 2 motherboard with all the VRMs + brackets + … sitting on the shelf waiting to be used. When I got it I was overly keen to have a four socket system, but as I now have HP DL580 G5 + G4 + Dell PowerEdge 6300/450 systems and suspect I will never use the S2QR6 , maybe it's time to put it on eBay.

austinham wrote on 2020-05-19, 13:01:

Orkay wrote on 2020-05-14, 15:02:

red-ray wrote on 2020-05-14, 13:59:

Wow, I did not know PPros would work with a 440LX chipset!

From what I've heard here, the Pentium Pro can work on 440BX boards, too. If I had some Socket 8 adapters for my P2B-DS, I'd be very much willing to compare a couple of SL259 CPUs running at a 66MHz and a 100MHz FSB.

I have heard the same before too, but never seen it done.

Just 4 seconds off the champion .

I dare you to try an overdrive processor in there.

I second that dare.

I third it and a screen shot of cpu-z showing both the cpu and motherboard tab.

45.6MHz FSB what? Is that thing running at 366 for real?

I have a P2B-DS I'd love to try this out on. Also with overdrive chips.

Ppro with sdram AND agp? I'm moist just thinking about it.

maxtherabbit wrote on 2020-05-23, 16:18:

45.6MHz FSB what? Is that thing running at 366 for real?

I expect this must be incorrect and if you check the POST BIOS screen shot the speed is 250MHz.

He used an ancient CPUZ, my guess is that old CPUZ messed up and I feel he should have used the current CPUZ_X32 or CPUZ_W9X release.

My guess is that it's using a x2.5 multiplier and the FSB is about 100 MHz.

red-ray wrote on 2020-05-23, 16:55:

My guess is that it's using a x2.5 multiplier and the FSB is about 100 MHz.

That's correct. 100x2.5. Asus P2B-F is unstable @ 103. Goin to repeat the same with Asus P3B-F.

Also, I'm to run a couple of Black Top / 1M/ 200M PPros in a VIA-based mobo (Tyan S1834D) to use +33M option on SDRAM. But, this mobo is installed in GC-MS instrument that still works ))

Sadly, but I do not have any P2 overdrive CPUs in my collection.