Sleep states, older motherboards and reliability

BonzaiDuck

Lifer
Jun 30, 2004
16,867
2,184
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I had given up or dropped the idea of using sleep-states when I started OC'ing, and I also remember having trouble configuring it. That must have been several years ago.

Now I'm on a campaign to trim household power usage. There are three very active computer users here under the same roof, each with their own machine, and there is a WHS server.

It seemed that yesterday was a point of watershed progress after I read some few web-guides about the sleep feature. I was trying to enable all machines for S3 or S1&S3 "hybrid" sleep.

I've now enabled "WOL" on all the machines, and with some simple shareware software [WakeMeOnLAN], I can wake the machines throughout the house from my single workstation here. Which . . . enables me to do maintenance via Remote Desktop on the machines when they're not being used.

One of the machines set to sleep after an hour is an E8600 with an EVGA 132-CK-NF78 780i motherboard, and is rock-solid. It goes in and out of hybrid sleep and remains totally stable.

The other uses a much cheaper Gigabyte mATX motherboard [LGA775/C2Q-capable]. It only has S1 or S3 -- not S1&S3. Had it set up yesterday for S3 sleep, and it would reliably wake properly throughout the day. But after sleeping overnight -- about 12 hours -- I couldn't wake it remotely and went upstairs to investigate. When I hit the power-button (quickly) to wake it, it cold booted! So it didn't maintain itself in S3 "save to RAM" mode.

Couple web-searches suggest that people began having trouble with this feature as their computers got a bit older. Right now, I'm testing the S1 state on the latter computer to see if it remains stable.

Any ideas? Comments?
 

VirtualLarry

No Lifer
Aug 25, 2001
56,587
10,227
126
Does S1 sleep even do any good, over leaving the machine idle at the desktop?

I had a biostar S775 board that didn't have the BIOS option for S1 or S3 sleep, and it seems fixed to S1 sleep mode. When I measured it with a KAW, it didn't seem to save much power.
 

BonzaiDuck

Lifer
Jun 30, 2004
16,867
2,184
126
Does S1 sleep even do any good, over leaving the machine idle at the desktop?

I had a biostar S775 board that didn't have the BIOS option for S1 or S3 sleep, and it seems fixed to S1 sleep mode. When I measured it with a KAW, it didn't seem to save much power.

That may very well be true, Larry. I'm only a bit more lucky because the machine that only works with S1 has only an SSD drive in it . . .

Now I'm wondering if maybe the reason the board's S3 state creates an unstable situation has anything to do with a case fan and how it's powered. Can't say at this point. On the up side, we went from two machines in the same room running "awakened" 24/7, to one machine in hybrid sleep. So upstairs, we traded three machines for what is currently two, and one works with hybrid sleep.