Products > Test Equipment
Agilent 54835A scope (4 channel 1GHz / 4Gs/s) repair & uphack
Converter:
--- Quote from: analogRF on November 26, 2019, 06:08:09 pm ---
the scope is not mine so I have to check with the owner but certainly he does not want to alter the back panel and drill holes and stuff...
so if there is a board that perfectly replaces this POS and is cheap then yeah, I think he will consider it.
--- End quote ---
Perhaps you did not attach importance, but the keyword in my post was "Baby-AT".
Converter:
Some links for you that may be helpful (Baby-AT + Socket 370):
https://www.ebay.com/itm/Socket-370-motherboard-Procomp-BIW2B-Intel-810-All-cables-TESTED/254146901174
https://www.ebay.com/itm/Motherboard-Procomp-BIW2B-COMBO-SLOT-1-Socket-370-Intel-i810/123947801384
https://www.ebay.com/itm/Polaris-VIA-370-PGA-370-motherboard-ISA-bus/323966242757
https://www.ebay.com/itm/Socket-370-motherboard-PcPartner-VIB861S-APBS3-C861-VIA-Apollo-Pro-TESTED/254255887971
https://www.ebay.com/itm/Socket-370-motherboard-Soltek-SL63A1-i440ZX-TESTED/254416633699
https://www.ebay.com/itm/Bundle-of-Motherboards-5x-socket-370-3x-socket-5-2x-slot1-1x/303353323253
https://www.ebay.com/itm/Motherboard-ZIDA-Tomato-Board-ZX98-CT-Socket-370-with-Celeron-533MHz/223467539361
https://www.ebay.com/itm/Vintage-Motherboard-PC-Dual-SLOT1-S370-Procomp-BIW2B-AT/333298782987
Most importantly, you can use Pentium III with them, which works much faster than your processor on the Socket 7.
I recommend choosing with the i810 chipset, since this will allow you to get IDE Ultra DMA4-66 (and not only DMA2-33), which will speed up loading with good HDD or SSD.
analogRF:
alright, let me see, I cleaned up all the boards and connectors everywhere thoroughly again, reset the CMOS and then set it up according to page 5-48 of the Agilent service manual like before, changed the RAM, etc, replaced a few more of the 10uF caps...and again no luck |O
I could not move the PCI cards around because they hit the cpu heatsink.
I am sure the BIOS does not even attempt to access the boot record on the booting device whether it is floppy or HDD or CD (I connected a cr rom to the ide channel to check). Something else is stopping it before booting the OS. Based on my past experience when I used to build PCs about 17-18 years ago, this is usually due to a HW conflict of some sort which leads me to believe the BIOS settings are not right even though I followed the Agilent service manual (load Setup Defaults, then....)
Can somebody who has this board (FIC VA-503A) please check the bios settings and post a couple of pictures so I can compare? specially the second page which is called BIOS features and the one that is called chipset features and also Integrated Peripherals.
I have played many times with bios settings but only those that were related to IDE or booting or PCI devices, not the others because I thought setting them up based on agilent service manual should be enough.
nctnico:
I guess you already tried to set the BIOS settings to 'defaults'?
analogRF:
--- Quote from: nctnico on November 27, 2019, 06:31:24 pm ---I guess you already tried to set the BIOS settings to 'defaults'?
--- End quote ---
yes, as per instruction in agilent service manual, it starts by setting to default and then it shows some of the settings that must be specifically set
but they are actually set already by default. you can look it up in the service manual
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