Micron Xceed SE/306-48 and SE/30 issue

[jimbojones]

I recently acquired a Micron Xceed SE/306-48 (sold untested, so a gamble) to go in my SE/30.

Unfortunately, when I put the card in my SE/30 it makes a bong and shows this screen:



Does anyone have any pointers on if there is anything I can do/try?

My SE/30 with 68MB of RAM runs fine without it.

Here are some pics of the card (on the bottom of the card it looks like there is rework - just up from the bottom where it says 3754 and a bit to the left - but I don't know if that's from the factory):

 

[Phipli]

Check for shorts or trace breaks, then check for shorts over the capacitors. Check for bent pins on the main connector.

Did you disturb your ROM while you were at it?

Could you take a closer, clearer, photo of this area :

 

[Phipli]

Also, could we have a closeup of here ?

Actually, I think this one just looks dark because the neighbouring chip is socketted and the rest aren't, so that's probably fine.

 

[tvj]

I have the same card, and that rework on the back doesn't look factory to me. My card has no rework. Are those traces cut? It also looks like the gouge is so deep where the reworked wire is that the internal traces might be compromised. I'd check with a multimeter in continuity mode to make sure.

Can you check the voltage on the SE/30 from the floppy port with and without the card slotted? If the SE/30 power supply is marginal, you'll get jailbars from the increased demand on the power rail.

 

[jimbojones]

 

[joshc]

Doesn't look like a factory bodge. Someone has knocked/damaged it previously and tried to repair it.

Have you done a continuity test of those traces?

 

[jimbojones]

Thanks all. I'll check the power supply and try without the hard disk etc.

I'll check the continuity of the traces as well.

 

[jimbojones]

I'm a novice in this area, so bear with me

I tested the traces around the affected area using a multimeter from the blobs at each end of the trace - all seem to have continuity.

I unplugged the floppy and hard disks and tried again, but to no avail. I'll try and do some voltage testing.

I can't find a manual for this card. It's a long shot, but could my memory configuration be an issue (4x1MB + 4x16MB)?

 

[Phipli]

It's a long shot, but could my memory configuration be an issue (4x1MB + 4x16MB)?

No, that isn't anything to do with the video card.

Did you check the main connector for bent pins?
Did you check all the yellow capacitors to see if any were a dead short?

 

[joshc]

May also be worth taking the ROM off the card, spray contact cleaner into the ROM socket, and checking the ROM pins look OK as well.

 

[jimbojones]

Pins are all good. Will have a go with the ROM and some contact cleaner.

Can I check the capacitors somehow without taking them off the board?

 

[Phipli]

Pins are all good. Will have a go with the ROM and some contact cleaner.

Can I check the capacitors somehow without taking them off the board?

Yes, just check if there is a short over them using the continuity tester, or the resistance meter

 

[jimbojones]

Thanks again.

I checked all of the capacitors with my multimeter and I think they seem to look ok (they don't allow all current through).

I took the ROM out, sprayed some contact cleaner in and tried again, but no luck. I tried the card without the ROM in and got the same screen.

I wonder if I'm going to have to try and find another board now and try and swap the ROM. Hmmmm.

I've probably reached the limit of my electronics skills.