Got this not long ago.

Is anyone familiar with this board? Socket A/462 FIC AM39L.
It has a 12v 4pin connector, could it be using 12v for CPU power instead of 5v?
Tried looking online, but couldn't find any answers.

I have exactly this board, no idea about the 12V P4 connector, but there is a simple test - try to run it without the 12V connected... if it works, then only 5V is used.
And one more thing - although there is AGP universal slot, 3.3V videocards are NOT supported.

havli wrote:

I have exactly this board, no idea about the 12V P4 connector, but there is a simple test - try to run it without the 12V connected... if it works, then only 5V is used.
And one more thing - although there is AGP universal slot, 3.3V videocards are NOT supported.

Thanks for the info. Will try it out tomorrow.

havli wrote:

I have exactly this board, no idea about the 12V P4 connector, but there is a simple test - try to run it without the 12V connected... if it works, then only 5V is used.

Not strictly true. I've powered up Socket 478 boards without the ATX12V connector being connected IIRC, and have heard of/seen other boards power without it as well.

Yes, I have one of these s478 boards too - ECS with SiS 645DX chipset IIRC. There is one more possibility which I forgot to mention - it is also possible CPU VRM draws power from 12V rail inside ATX 20pin. For example this Biostar http://hw-museum.cz/view-mb.php?mbID=50

I bought this Cyrix MIIv-333GP 4.0X a moment ago, I have been watching it the last 24 hours hoping someone else would buy it...

The CPU is in a sorry state with hardly a straight pin in sight, all pins seem to be there though. The CPU was sold as untested and it wasnt super cheap (18 euro + 5.5 euro shipping) but it's the first Cyrix MII CPU guranteed to have the 4X multiplier I have seen lately so I thought it was worth a gamble.

The sellers pics

Skyscraper wrote:

I bought this Cyrix MIIv-333GP 4.0X a moment ago, I have been watching it the last 24 hours hoping someone else would buy it... […]
Show full quote

I bought this Cyrix MIIv-333GP 4.0X a moment ago, I have been watching it the last 24 hours hoping someone else would buy it...

The CPU is in a sorry state with hardly a straight pin in sight, all pins seem to be there though. The CPU was sold as untested and it wasnt super cheap (18 euro + 5.5 euro shipping) but it's the first Cyrix MII CPU guranteed to have the 4X multiplier I have seen lately so I thought it was worth a gamble.

The sellers pics

Cyrix_MIIv_4X.jpg

Cyrix_MIIv_4X_pins.jpg

That isn't too bad, I have fixed a lot worse worse. At least they are not rusty or snapped off 😀

Exactly, looks almost like new. 😀
I'm not sure 4x multiplier is really needed on Cyrix MII - it won't go much beyond 300 MHz anyway.

nforce4max wrote:

That isn't too bad, I have fixed a lot worse worse. At least they are not rusty or snapped off 😀

Yea I have also fixed CPUs in much worse shape but I did not pay this much for them. 😀

havli wrote:

Exactly, looks almost like new. 😀
I'm not sure 4x multiplier is really needed on Cyrix MII - it won't go much beyond 300 MHz anyway.

Having the option to run 4x75 or even 4x83 is nice. 😀

As it's a 2.2V Mobile* chip Im hoping it will do 300 MHz at stock voltage but Im unsure if its a 0.25 micron or 0.18 micron chip. If its a 0.25 micron chip it should be able to handle up to 2.8V but if its a 0.18 micron chip 2.4V would be the highest I would dare to go, even for a short benchmark session.

*Or not but some kind of low power version or what ever the v in MIIv stands for.

Edit

The X86-guide seems to think its a 0.18 micron CPU.

http://www.x86-guide.com/en/cpu/Cyrix-MIIv-33 … -cpu-no908.html

/Edit

Nothing fancy, but I wanted to experiment with SETMUL to see if a Pentium II would give different results than a Celeron at the same speed with different combinations of L1 and L2 being disabled. Currently have a Celeron 333. Bought this PII-333 for $9 shipped. In the end, with L1 disabled, the PII is a hair slower than the Celeron in synthetic CPU benchmarks, but a hair faster in Doom. Nothing really noticeable, though. My hope was that the PII would clock in at mid-to-high 386 speeds. Instead, it is just like the Celeron, clocking mid-to-high 286 speeds.

I was disappointed that it came without a heatsink, but for the purposes of this test, it wasn't necessary. The seller conveniently excluded photos of the heatsink-side, and did not specify "no heatsink" in their description. But for $9, that's fine.

Here are the benchies:
Doom L1/L2 enabled:
PII: 82.53fps
Cel: 80.31fps
Doom L2 disabled:
Cel: 77.56fps
PII: 76.53fps
Doom L1 disabled:
PII: 1.98fps
Cel: 1.78fps

Asus V9999GT 128MB (Geforce 6800GT) for 1 buck + shipping 😀

Maybe I can mod this one to AGP-2x??

I am fed up with my Leadtek 6600GT... One time it works, the other you have to reset the system...

And I can't wait for my NEC Multispin to arrive:

I've got an external SCSI CD-ROM drive, but no caddies. Is there a source for new ones?

I recently saw caddys for sale on ebay 😀

A few posts up I mentioned the PII-333 without heatsink I bought. Here is my ghetto solution.

Judging by how hot the aluminum heatsink gets, it's doing a decent job. It's not covering the cache chip, but it's keeping the processor stable during benchmarks. 😉

Asus P5WD2-E Premium

Not very useful, as it doesn't support core2... but it is always nice to have i975X board.

Nice, I think I have that same board 😀

havli wrote:

Asus P5WD2-E Premium

Not very useful, as it doesn't support core2... but it is always nice to have i975X board.

I honestly can't see why, but have fun with it 😀
Who else collects those anyway so it's a good thing there are people who appreciate it.

Arctic wrote:

havli wrote:

Asus P5WD2-E Premium

Not very useful, as it doesn't support core2... but it is always nice to have i975X board.

I honestly can't see why, but have fun with it 😀
Who else collects those anyway so it's a good thing there are people who appreciate it.

I think have one of those motherboards aswell, the plan was to use it with a Pentium Extreme Edition 955 in a year 2005 system, I have just not got to building it yet.

Just bought (finally!) a full 486 on eBay, € 51 + shipping:

Here the specs:

Motherboard: Unichip 486 WB 4407 Rev 1.1
CPU: Intel A80486DX-33
VGA: Cirrus Logic VLB CL-GD5428
HD/Floppy controller: MIO-2080
HD: IBM H3256-A3 256MB IDE
Floppy
PSU: SK-230W (?)

Fingers just crossed 😜 The seller has told me it is in fully working conditions, and in very good shape - it isn't included any boot floppy. Is there anyone who can tell me more about this machine and its components? It reminds me my beloved Olivetti machine.

Arctic wrote:

I honestly can't see why, but have fun with it 😀
Who else collects those anyway so it's a good thing there are people who appreciate it.

975X is my favourite chipset, it offers the best memory performance of most (if not all) 775 chipsets. Many years ago I've upgraded 975X board to X38 and expected fps increase for my HD 3850 CF gaming rig... well performance actually went down, despite higher FSB and 2x16 pci-e 2.0 vs 2x8 1.1.

That was of course different 975X MB, which supported even 45nm Core2.