Opus 150W shutdown problems

**migel628** · 08-18-2005, 01:09 PM

Now I seem to have a new problem. While I was checking the BIOS settings, I decided to take a look at PC Health Status where everything looked fine except for the -5V line, which was listed as -61.93V. I found this thread where wallaceacura hit the same -61V problem. According to posts on this:

"...the biostar fix is shorting out a jumper right behind the on/off header"
"Tech support told me if I didn't have the resistor value I could just short it out altogether. I took a piece of wire and soldered it to the ends of the resistors has been working OK."

So, I'm off to email Tech support again on this...

**migel628** · 08-18-2005, 01:12 PM

Originally Posted by nsmoller

go into your bios and change fsb frequency to 100mhz tell me if that works

worked for me for hibernate, still cant standby

I can go into Stand by & Hibernate just fine. Since I hit the -61V issue, I've decided to pull the Opus until I can get a resolution on that (just don't feel safe w/ -61V propagating throughout my -5V line). However, I popped the old ATX Supply in & tested the Shutdown, Hibernate, and Stand by functions. Again, then Hibernate and Stand by functions worked properly, but the Shutdown did nothing (pushed the button & nothing happened). So, I am thinking that Shutdown is a limitation of the v7.2.

**nsmoller** · 08-18-2005, 01:16 PM

what about 61v????

how do i know i have it?

**migel628** · 08-18-2005, 01:21 PM

Originally Posted by nsmoller

what about 61v????

how do i know i have it?

I went into the BIOSes PC Health Status menu, under -5V, -61.93V was listed where is should have been some value close to -5V.

**migel628** · 08-18-2005, 01:43 PM

Ok update from Opus on the -61V issue:

"Our power supplies don't have -5V. What you see is noise."

Looking back at the Opus 150W manual confirms that there is only +3.3V, +5V, +12V, and -12V. So, the -61V on the -5V seems to be a non-issue...

**migel628** · 08-18-2005, 01:47 PM

Got another reply from Opus on the shutdown issue:

"Due to the fact that the power supply boots up and goes into standby and hibernate it is definetely a software problem, the same signal triggers all three modes."

He claims it's a software issue, I think it's a limitation of the m/b since it doesn't support S3 mode. I may look into another board at this point, but I'm not sure...

**DarquePervert** · 08-18-2005, 10:21 PM

Originally Posted by migel628

Got another reply from Opus on the shutdown issue:

"Due to the fact that the power supply boots up and goes into standby and hibernate it is definetely a software problem, the same signal triggers all three modes."

He claims it's a software issue, I think it's a limitation of the m/b since it doesn't support S3 mode. I may look into another board at this point, but I'm not sure...

That would be a software problem. He's referring to the BIOS, which is software that controls the hardware at the hardware level, before the OS even gets involved.

**migel628** · 08-18-2005, 10:42 PM

Originally Posted by DarquePervert

That would be a software problem. He's referring to the BIOS, which is software that controls the hardware at the hardware level, before the OS even gets involved.

Yea, I should have cleared up my reasoning on that statment. That being exactly what you said. Thanks

**DarquePervert** · 08-19-2005, 07:40 AM

Originally Posted by migel628

Yea, I should have cleared up my reasoning on that statment. That being exactly what you said. Thanks

I know it doesn't help you in your situation, but it at least clarifies what the Opus TS person is telling you.
Perhaps there's a BIOS upgrade for your Biostar board?

**migel628** · 08-19-2005, 12:16 PM

Originally Posted by DarquePervert

I know it doesn't help you in your situation, but it at least clarifies what the Opus TS person is telling you.
Perhaps there's a BIOS upgrade for your Biostar board?

Any advice is helpful, even if it's just clearing things up a bit

I just upgraded the BIOS to the latest & greatest w/ no luck. I'm just going to have to accept that this problem is a limitation of the m/b's BIOS

At least it Hibernates, so that will have to do unless I want to find a new m/b that works well w/ the Athlon XP-M.