If that’s the case should test over clocking
Some antique Pc200 and pc266 ddr

I'm recapping some of my old motherboards, with polymer caps. This is called "polymod". Right now, I'm thinking about recap my P6S5AT. Every cap was made by G-Luxon.

The bigger caps is 1500uf/6.3v/10mm (x21 or x22)

There are x4 1000uf/10v/8mm

And x4 470uf/16v/8mm

About the smaller ones, if I really recap, I'll leave the way it is or I'll replace, at least, the 100uf/16v (x13 or x14).

In the past, do you saw problems with this capacitors mobo ?

VooDooMan wrote on 2021-04-08, 07:39:

Sorry, I haven't checked in here for a while...

Kami27 wrote on 2020-08-21, 17:32:

You talked about a software called CMOSTool to overclock the FSB but I really can't find it anywhere, could you help me please ?

If you are still interested please write me a PM.

Hi, I'm also interested but I can't compose PM's for now, can you write me one ?
Thank you.

The worst thing happened to me, I have a Jetway J-635CS, 2x 1gb DDR 400 Kingston, Radeon HD 3650, Pentium III 1.1 GHz SL5QW Coppermine aka fastest coppermine, and pretty much the best 370 setup.
I switched PSU's and suddenly no post, switched back to the old one still no post, the CPU fan spins for a second then nothing, the cpu gets warm, but the chipset is cold, I checked everything seems the mosfet shorted so i can't get correct reading on the caps, and the GPU's caps blew. I pray that I'll manage to fix the motherboard, even if I have to re-solder the whole thing from ground up, hope the chipset is fine because that would be a real pain in the ass to source and solder even then it might not be compatible.

Just had to write this down here as a 635 user in pain 😒 If anyone has any advice I'll be super thankful!
Also I've got a dead Intel D815 board, it worked 10 years ago and the whole PC was just stashed away, the caps were dead so I recaped it and it still wont post,
why are they selling those 2 ancient boards for huge amounts of money? I can't find anything under a couple hundred dollars.

The family is getting biggger 😁

Here are all the possible revs and all mobos I have collected with the date of production:

Rev 1.3 - 01.04.24

Rev 1.5 - 01.05.22

Rev 1.5 - 01.05.23

Rev 1.5 - 01.06.28

Rev 1.6 - 01.08.29

Rev 1.6 - 01.09.04

Rev 1.6 - 02.02.14

Rev 1.6 - 02.02.19

Rev 1.6 - 02.07.11

In case you have this board and you want to participate in this project please provide your rev and date of production 😉 The higher rev with production date the bigger OC potential 😀

1) Rev 1.3 - 01.04.24 - NO OC potential (Tualatins work only at 66 FSB)

2) Rev 1.5 - 01.05.22
3) Rev 1.5 - 01.05.23 - Tualatin Support, Coppermines work good at 166 MHz, Tualatins only at 150 MHz.
4) Rev 1.5 - 01.06.28

5) Rev 1.6 - 01.08.29 - Tualatin Support, Coppermines work good at 166 MHz, Tualatins have some problems at 166 MHz.
6) Rev 1.6 - 01.09.04

7) Rev 1.6 - 02.02.14
😎 Rev 1.6 - 02.02.19 - Tualatin Support, Coppermines work good at 166 MHz, Tualatins can work better at 166 MHz.
9) Rev 1.6 - 02.07.11

All revs support 2 GB of Ram (not only 1,5 GB as suggested by the chipset producer)

When it comes to HDD the maximum transfer rate is around 82,4 MB/sec (ATA UDMA100 onboard controller)
Here's how it scales with FSB:

66FSB - 78,8 MB/sec

100FSB - 81,1 MB/sec

133FSB - 81,7 MB/sec

150FSB - 82,6 MB/sec


166FSB - 82,4 MB/sec

Here's how long it takes to boot into windows on 166 FSB:
https://www.youtube.com/watch?v=SEiI4V9jP1g - Tualatin
https://www.youtube.com/watch?v=VSTXBHm6F2k - Coppermine

gabimor wrote on 2022-01-06, 22:22:

In the past, do you saw problems with this capacitors mobo ?

Those caps were of low quality just like the vast majority from that period of time 😉

JustJulião wrote on 2022-02-08, 19:36:

Hi, I'm also interested but I can't compose PM's for now, can you write me one ?

I attach everything you need.

Mazuto wrote on 2022-10-07, 22:36:

Just had to write this down here as a 635 user in pain 😒

I feel for you 🙁 I just hope you will be able to get this mobo back to life! In case you need help just PM me 😀

I would also like you to make so HQ photos of your mobo and make them public - THERE ARE NO GOOD PHOTOS IN THE WHOLE INTERNET 😉 You are the lucky owner of Jetway J-635CS 😁 Please share 😉