Are sleep state troubles likely in 64bit environment apparently incurred by PCI express? I have set the following card in my desktop PC up.
PCI-Express x1-bus 56k Fax Modem AKBP-56K-PCIE
By booting Windows up, the OS did recognize this card and installed its own driver described below automatically.
Modems: AGERE PCI-SV92EX Soft Modem
Driver Provider: Microsoft
Driver Date: 11/11/2008
Driver Version: 220.127.116.11
Digital Signer: Microsoft Windows
The "Add a New Device" window didn't show through this process. After installing the card, the PC cannot stay in sleep state longer than 1 second. Also hibernation can last only 3 seconds. My PC's resume is:
M/B: Asus H170-Pro
CPU: Core i7 6700 3.4GHz
OS: Windows 10 64bit Home (Version 1511 Build 10586.545)
SSD: Samsung 950 Pro M.2 NVMe
HDD: WD Blue 2TB 5400rpm
TV Tuner: PIX-DT460 PCI Express x1
Keyboard and Mouse: each via PS/2 port
I have reported this issue to Asus but gotten no answer yet. I updated UEFI BIOS on 19. July 2016. The seller ECLINK Amazon branch (Japan) told me that the card should support up to Windows 8. By viewing customer reviews in Amazon Japan's site, I got to know that some are using this card perfectly with the sleep state and others not. This fact may suggest that there is hardware (chipset?) dependancy. My present Windows settings are:
Device Manager -> Properties of Modem ->
[ ] (off checked) Allow this device to wake the computer
Control Panel -> Power Options -> Change plan settings
-> Change advanced plan settings
Sleep -> Allow wake timers -> Setting: Disable
PCI Express -> Link State Power Management ->
Setting: Maximum power savings (others didn't help)
When sharing media -> Setting: Allow the computer to sleep
When playing video -> Setting: Optimize power savings
My present M/B settings are:
UEFI BIOS -> Advanced Mode(F7) -> Advanced -> APM Configuration
ErP Ready Disabled
Restore AC Power Loss Power Off
Power On By PS/2 Keyboard Disabled
Power On By PS/2 Mouse Disabled
Power On By PCI-E/PCI Disabled
Power On By Ring Disabled
Power On By RTC Disabled
I have tried changing the ErP Ready setting to [Enable(S4+S5)] and then [Enable(S5)], each without success. The work of the fax modem itself is quite stable. I can send faxes any time without failure. Must I dismiss the fax modem when I insist on sleep state? Afterwards I tried the attached driver CD and Windows told "Could not find the MODEM device for this driver" or "The best driver software for your device is already installed" after disabling or uninstalling the device.
Looking up chip numbers, I found a site http://modemsite.com/56k/sv92p.asp http://modemsite.com/56k/sv92p.asp explaining old drivers. The site tells that the fax functions is realized by software and developmet of the 64bit version is done in Vista's era i.e. up to 2009.
I got into Event Viewer (Windows Logs -> System) and found a log which tells "Wake Source: Unknown" sourced out from Power-Troubleshooter. I tried "powercfg -requests" in Command Prompt but all categories told None. I checked Task Scheduler and found no scheduled task which was enabled to "Wake the computer to run this task". Exchanging PCIEX1_1 and PCIEX1_2 (fax modem <-> TV tuner card) didn't help. The folloing is a log from Device Property.
08-20-2016 09:38:43.224 - File: C:\Windows\system32\tapisrv.dll, Version 10.0.10586
08-20-2016 09:38:43.224 - File: C:\Windows\system32\unimdm.tsp, Version 10.0.10586
08-20-2016 09:38:43.224 - File: C:\Windows\system32\unimdmat.dll, Version 10.0.10586
08-20-2016 09:38:43.224 - File: C:\Windows\system32\uniplat.dll, Version 10.0.10586
08-20-2016 09:38:43.224 - File: C:\Windows\system32\drivers\modem.sys, Version 10.0.10586
08-20-2016 09:38:43.240 - File: C:\Windows\system32\modemui.dll, Version 10.0.10586
08-20-2016 09:38:43.240 - File: C:\Windows\s...
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On the Intel motherboards there is an option in the BIOS called "Expansion Card Text". If this option is enabled, it displays "add in Option ROM text". If the option is disabled it frees certain resources that can improve the PCI performance. The reason why I am mentioning this information is because from our side this is the closest piece of information available, I understand that you already contacted your computer manufacturer but the best support in this case should be provided by ASUS.