STe booster v 1.5 36Mhz

[nemox]

Hi
Today i install this booster but, when i use ultrasatan = bombs and coruptet SD card:-((

floppy, RAM, stability OK, only ACSI(ultrasatan) problem.
Where is problem. help pls...

sorry for my english

[exxos]

I would suggest you add 10K pull up network on the DMA databus like this thread shows..

https://www.exxosforum.co.uk/forum/viewt ... =17&t=1417

Also what driver are you using with US ? and what Version of US are you using exactly ?

[nemox]

hi,
i add 10Kohm pull up resistor to WD1772 and still the same,
i have hddriver 4.23, booster is STE 32mhz BOOSTER PLUG IN 2018 REV E
Motherboard is 520 STe 4Mb RAM -GX-211 VO 2391. CA4003290
Thanks

[exxos]

hddriver 4.23 ? You should try a later version as that one is very old.. I think they on version 10 now..

https://www.hddriver.net/en/demo.html

Have you tried the booster in 8MHz mode also ?

Is your PSU re-capped ?

Can you upload a image of the mod you have done ?

I assume ultrasatan was working reliable before booster install ?

[nemox]

I try newest version, on 8 Mhz all ok - treecheck, hddriver, edge no problem.

[exxos]

I assume you have the DUALTOS board fitted ? Also using TOS206 ?

[nemox]

i will make image tomorrow, ultrasatan working OK, he never had problem, yes i use tos 206 from fast rom switcher

[nemox]

i tried new hddriver, and still the same, power supply not recap and power supply has 5.05 V tomorow i will send foto

thanks
by

[nemox]

hi i sending picture of motherboard

[exxos]

Can you check that blue wire to the resistor pack is actually 5v ? It looks like you wired to a different capacitor than my image..

Also did you use a bussed resistor pack or a isolated one ?