ludek

Nice I need quickly to buy another motherboard. BTW. CL2.5 is the best on these chipsets.

Thanks guys I bought only one celeron 1.2, I was so lucky. I was able to improve a little bit this score: Zombie 4 phase -> vNB, 2 phase to vMEM and vSB (southbridge) mod. Now ~330x12. I'm pretty shure that is chipset limitation. Will try with another Northwoods. Here are some nice photos from "zombie" and celeron session Photo1 Photo2 Photo3

Very nice ! What is the motherboard model? Clock generator ~92-93 MHz x 3 ?

Socket 5 CPU can run on socket 7 motherboard. I have eg. AMD K5 or non-IHS versions of non-mmx pentium 1 (P54C) they are oficially on Socket 5 platform, but my Socket 7 mobos are working with those I use Soyo 025N2 and PL4600. I have tested, both working with 128 MB ram There are lots of things I don't understand, eg when connect a hard disk to my Win 7 PC, then it can't work back in the old 486 motherboard (windows error "inaccessible boot device"). Installed 3 times NT4.0 yet Edit: Nope, NT4.0 will be installed 4th time I have installed NT4.0 on Ultimate-epic-performance Socket 7+Pentium MMX hyper-fast motherboard, added IDE PCI controller, installed drivers, changed "C" drive IDE-cable to this-one and it was booting... but another experiments with UMC IDE controller ruined my system data Ehh...

OK, I'll wait for some useful words Yeah! My cyrix Cx486DX2 66 overclocked to 80 MHz

And there is a thread about SPI 32@i486. LINK

It's nothing special, my AMD K5 did SPI 1 MB in >23 minutes LINK

As far as I know, SPI 1.5 XS can't run on Win 98. Few days ago I made a performance comparison between Win NT4, XP and Win 7 - using virtual machine. Win 7 has got the top score because of virtual machine program was working slower. SPI on each system was working separately, XP, then NT4, then win 7. System spec: I7 3770K @ 4.3 GHz, DDR3-1600 @ 7-8-8-24 (Elpida BBSE), Asus Z77

Hi. I'm going to run SPI on something slower than my slowest CPU so far: AMD K5-PR75 LINK (it took a bit more than 21). There are some problems. 1. Operating system, 2. Stability(extremely long counting operations eg. ~1-2 weeks? or more?), 3. Performance - memory issues. The biggest is the operating system. Most comfortable way and (top performance) is Windows XP, but as far as I know, this system can't be used with that old CPU. Why? There are answers found on the internet: 1. I know that XP can be booted with 64 meg of ram, it does work on TUSL2, PIII. I bought two special, still-working, high-performance, high-end socket 3 motherboards with "ultra fast" EDO-Ram (72pin). I think, these can work with at least 64 MB memory. Both have 4 mem slots. I have also 4x32 MB (high end) non-ecc memories, will try if they work. One of these motherboards have also 256 kB of cache, which is pretty good amount, but this one has only ISA ports. Manual says also about 128-meg support. Second motherboard has got few PCI ports and it's not bad, but has less amount of cache (don't know yet, how much). 2. Is anyone able to explain this? ?? 3. MMX and SSE are supported by Win XP, but are not required to run. A prove is my 21 hours SPI score on AMD K5, which have not built-in MMX feature. I'm thinking about NT 4.0, which can work with SPI 1.5XS. Possible problems: device drivers, maybe less stability. OK, so next "big" problem is the stability: 1. A/C power stability, 2. System stability. The first one can be solved by UPS with a huge accumulator. Second is system stability. I was making some tests on "oldschool" platforms. This is very important and stability depends on it. The Pagefile. When I was making SPI32 using Windows XP, Pentium MMX and 128 MB ram, system was crashing after 4-6 hours... I have done some research and it turned out, the Pagefile was turned off by me, because of it's location on slow HDD. When a platform has 512 MB of memory, missing pagefile was not problem anymore. Everything was rock stable. So, when I was counting SPI 32 MB on AMD K5 PR-75, there was a need to connect 3 hard drives to achieve best performance. The only motherboard working with that old AMD K5 could support max 128 MB of memory, and so pagefile must be on. One disk for the system (4 GB because of problems with MB support), one for SPI and one for Pagefile.sys. No matter if I choose XP or NT4.0, this solution would give me a best system performance possible and will provide stability, but there are other problems... Hardware problems: 1. no integrated IDE controller 2. drivers, drivers, drivers... I have SOYO motherboard with 256 kB, very well motherboard, with very well clock generator (25;33;40;50;66;75;100 MHz support ! ). But it only have ISA ports and no IDE. I have an old ISA IDE controller, but it is quiet slow for shure and don't know if I will find any drivers. Second motherboard has IDE controller but I'm not shure if is there possible to find any drivers, but it has got PCI and I can put external IDE controller... but it don't wanted to boot from external so called "external scsi adapter", there is no such-option in Bios, but I have drivers to this. So if anyone has anything to add or has got any advice, please tell me To be honest i have also not much expirience with very old platforms, I had once 486DX2 notebook when I was in the middle of elementary school, there was no problems with audio or IDE or modem or any other devices, no IRQ settings and things like this So... wish me luck

Very nice score! Congrats

Hmm, why 3:5 memory divider? If is it X48 (P5E64 ? ) then "3:5 bug" and the same efficiency like 2:3. Am I right?

Haha Now it's hard to beat... how much? 340% OC

So, what is with pictures? Still I can help you, I have not received any mail.

Nice !

UPS is actually not bad idea, I was thinking about it I bought a two special high-performance, hi-end, TOP motherboards with EDO. Slow SIMM memories would make it two times longer. I have DX33, DX2 50, DX2 66, cyrix 66, AMD DX4 100. Don't know if are all of those on hwb database. Should be interesting BTW, which is faster DX2-66 or Cyrix 66, hmm... I'm counting on less than a week @ DX2-66. i386 - this one should count SPI32 3 months or more, sadly I don't have proper motherboard... but i still have a i286-25 Will be interesting for shure

too lazy to take power supply out... what voltage?

haha when I use copywaza at SPI 32 MB, I'm having "Not exact in round" error. (when using OCX SPI Tweaker and set size in MB eg. 256 MB and single file size 1024 kB = guaranteed failure) i'm doing this wrong for shure. At these settings a SPI 1 MB test works. BTW. I'm going to SPI 32 @ 486 DX and DX2. I Have Socket 3 motherboard with EDO rams. It'll take... maybe a week

Added a YOUTUBE video If you can't see:

Wow ! That's a nice score. You can upload a platform photo... how much space it takes

Do not feed the trolls Soyo SY-6BA+ has got Cypress W124 clock generator, it can do 133 MHz. It has also PCI/AGP/FSB ratio 1/2/3. If you have done 600 MHz on 440 BX (which is of course impossible), then your PCI/AGP/FSB should be 200/400/600, not possible. Second thing is that your mems should work 1:1 to chipset. 600 MHz @ SDRAM is even more impossible. ehh, funny trolling, I'm leaving a thread

The limitations of CMOS technology not allowing to reach such frequency. Lupino, this is an CPUz error If you show us video with huge performance boost or CPU frequency measured by a oscilloscope, we can belive u. Stop telling us, you did 3 GHz @ pentium 2 @ air.

Do not use subzero on IMC, higher temperatures required to do high ddr1 freq.

@MR. Scott I did this about year ago. Will remember to upload photo soon. CH-5 yes, also can work with CL3.

Ruggero has right... and d3mox you are making a mistake one more time. I can run my BH-5 @ CL3. Really, my HyperX's can work @CL3. Nice sburnolo !

Wow ! What's the batch ? Nice