"Vækning" af PC ved optagelse

Jeg overvejer at sætte et TV kort (formentlig fra Pinnacle) i min PC for at bruge den som video-optager. PC'en skal via et 12m HDMI-kabel kobles til et LCD fjernsyn (PC og fjernsyn står i 2 forskellige rum).

Imidlertid synes jeg det er for dyrt i el-forbrug, at have PC'en tændt/standby 24 timer i døgnet, blot for at være klar til at starte en video-optagelse.

Derfor følgende spørgsmål:
Er det muligt at få TV-kortet til at "vække" PC'en, når det er tid til at starte en programmeret optagelse?
På samme måde som fx "wake-on-lan".
Hvis ikke: Er der andre løsninger på problemet?

At have PC'en slukket vil naturligvis give længere start-tid, når den skal bruges som video-maskine. Det kan jeg godt leve med.

Men vil de typiske video optage programmer (eller TV tuner kort) være i stand til at få PC'en "vækket" fra suspend-to-disk/suspend-to-ram, når en programmeret optagelse skal starte?

 

Redigeret af tttt

tttt skrev: Men vil de typiske video optage programmer (eller TV tuner kort) være i stand til at få PC'en "vækket" fra suspend-to-disk/suspend-to-ram, når en programmeret optagelse skal starte?

Ja Windows MCE kan lynhurtigt vække PC'en fra Suspend-to-RAM ved timer optagesler. Suspend-to-RAM kaldes også S3 standby.
Det er stort set kun RAM der bruger strøm i S3 stanby, blæserne slukker også.

Læs dette emne:
http://www.thegreenbutton.com/community/shwmessage.aspx?Foru mID=42&MessageID=49101

Citat fra side 2:
Idiocyinc, S3 Standby is about the same as powering off your PC as far as heat dissipation is concerned. In S3 Standby, only the memory gets power. What's so AWESOME about S3 Standby, compared to S1 Standby, is the fact that everything, but the memory, powers down. In S1, the PC still stays on. Another AWESOME feature of S3 Standby & I think this goes for all standby's & hibernation, is the fact that it will STILL RECORD!!! If you have a program scheduled for recording at a certain time & the PC is in Standby mode, the PC will WAKE UP & record the movie. It will then return to Standby after the recording is over. AWESOME features & it works like a champ on my MCE PC. WebGuide 2 even wakes the PC up to d/l the guide data for WG2.
 

Redigeret af HTPC

KasperM skrev: Hvordan kan man se om et bundkort understøtter S3? Har selv gået og leget med tanken med at bygge HTPC og har ført set det med S3 nævnt i forbindelse med stand-by. Jeg synes dog ikke rigtig det er let at se om et motherboard har S3 standby indbygget. Skal det have et bestemt chipsæt, eller hvordan hænger det hele sammen?

Det tror jeg langt de fleste motherboards/BIOS understøtter i dag.
Men prøv at donwloade manualen til de motheboard du påtænker at købe og se om ikke der står noget om ACPI suspend / S3.
 

Redigeret af HTPC

lunge skrev: Hvad med dette her billige kort fra Aldi? Kan det mon noget af alt det fine i omtaler?

Dette kort kan tænde en slukket PC med timeroptagelse.
Der står ikke noget om den har hardware MPEG-2 encoder, eller det bare er software encoder.
Software encoder bruger mange CPU ressourcer og belaster dermed PC'en unødigt, med deraf følgende stigende strømforbrug og varme samt færre ressourcer til at udføre andre opgaver.
Køb kun et TV kort der har hardware MPEG-2 encoder, hold jer væk fra kort med software MPEG-2 encoder.
Men hvis du vil bruge det med Windows Media Center Edition så skal du købe en af dem der står på Microsoft's liste, ellers virker det højst sandsynlig ikke.
Mit råd er at købe et af de tre kort jeg allerede har nævnt, det er efter sigende dem der har den bedste billedkvalitet og de er ikke ret meget dyrere end det ukendte Aldi kort, der står ikke engang hvem der har lavet Aldi's kort.
 

Redigeret af HTPC

http://www.lifsoft.com/power/faq.htm#faq1

ACPI FAQ
Auto Power-on & Shut-down allow you to control your computer resume from power-off state and wake your computer from sleep mode.

• What is S3/Standby/Suspend to RAM and S4/Hibernate/Suspend to Disk?
• Which operating systems support Standby (S3) and Hibernate (S4)?
• What is the benefit of the Standby and Hibernate sleep mode?
• What about Security when the system is "always on"?
• How much power does my system use when the in S3/4 sleep state?
• How to wake up the computer from standby state?
• How many expenses can I save?
• How to make my computer support s3 sleep mode?
  
  

· What is S3/Standby/Suspend to RAM and S4/Hibernate/Suspend to Disk?

S3/Standby is a "sleep state" (suspend to the system memory) that is supported by the systems hardware and certain operating systems. Once the system goes to sleep, it will "wake up" when the mouse is moved, any key is pressed on the keyboard or the power button is pressed. Auto Power-on & Shut-down can wake up the computer from standby state at specified time and to do something automatically. S4/Hibernate is a "sleep state" in which data is moved from system memory to the hard disk. This enables a system to 'wake' quickly while still helping to maintain data since you are not subject to power outages like you are when a system is in a screen saver mode, in S1 or in Standby (S3). State Description S0/Working System is on. The CPU is fully up and running; power conservation is on a per-device basis. S1 Sleep System appears off. The CPU is stopped; RAM is refreshed; the system is running in a low power mode. S2 Sleep System appears off. The CPU has no power; RAM is refreshed; the system is in a lower power mode than S1. S3 Sleep (Standby) System appears off. The CPU has no power; RAM is in slow refresh; the power supply is in a reduced power mode. This mode is also referred to as 'Save To RAM'. S4 Hibernate System appears off. The hardware is completely off, but system memory has been saved as a temporary file onto the harddisk. This mode is also referred to as 'Save To Disk'. S5/Off System is off. The hardware is completely off, the operating system has shut down; nothing has been saved. Requires a complete reboot to return to the Working state.

· Which operating systems support Standby (S3) and Hibernate (S4)?

S3 an S4 are supported by Microsoft Windows XP, Windows 2000, Windows Me and Windows 98SE. Windows 95 and Windows NT do not support S3/4.

· What is the benefit of the Standby and Hibernate sleep mode?

When a user does not use the system, lets the system goes to "sleep" then will saving the furthest power. When the user is ready to use the system again, the system "wakes up" in a few seconds. When the system wakes up, it is at the exact point it was at when the system went to sleep. (for example: in the middle of a Word document) The S3/4 feature saves power and increases user efficiency (users do not have to wait for the system to shut down or re-boot).

· What about Security when the system is "always on"?

For security reasons, you can lock the system with the locking function of the Auto Power-on & Shut-down.

· How much power does my system use when the in S3/4 sleep state?

Many systems are designed to draw less than 15 watts of power in the S3 sleep state for any configuration. Many configurations will draw less than 5 watts.

· How to wake up the computer from standby state?

Windows 98SE, Windows 2000, and Windows XP support wake up from the keyboard or power button but only Windows 2000 and Windows XP support wake up from the mouse. Auto Power-on & Shut-down support wake up the computer from standby state at specified time to do your assigned task. Wake event S1 state S3 state S4 state S5 state Power button · · · · RTC alarm · · · · PME (LAN/Modem) PCI · · · · USB (KB, Mice) · 98, Me, 2K, XP x x Keyboard - PS2 · 98, Me, 2K, XP x x Mouse - PS2 · Me, 2K, XP x x Auto Power-on & Shut-down · · · ·

· How many expenses can I save?

Electricity cost is calculated roughly with $0.07KWH, cost savings approximately $10-$50 1 year.

Redigeret af HTPC