How to change CPU voltage on a laptop?

I purchased an HP Envy Touch smart 15 for about 1000$ It is using Windows 8.1 a Intel Core i7-4700MQ processor clocked at 2.40Hz, 16.0GB RAM. I have the problem "Your primary display driver has stopped responding and has sucesfully recovered" I have searched for solutions and I have found many sources to say that the soulution was just to change the voltage from 1.00 to 1.05. This makes sense to me as I have tried changing the Timeout delay and deleting/reinstalling drivers, windows updates, switching to windows 7 even. Nothing has worked and the only solution people are getting is this. The only problem is this is a laptop and I checked the bios and found no option for this. Is there a program I can do this with? Thank you for taking the time to read this and please help! It happens often and it is making my schoolwork/homework a living heck. :/

Hi,
No, you won't be able to "overclock" this kind of laptops. One main understanding reason: Laptops will overheat very quick and their lives will be very short. Vendors don't want users send their machines back because of overheated during warranty period.
Regards.
BH
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Quote from: MSI service FAQ
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MOVED: cannot change CPU Voltage??(first time here)

This topic has been moved to Overclockers & Modding Corner.
cannot change CPU Voltage??(first time here)

In Cell Menu you will find something like CPU VID / Over VID. The first will be set to Startup (=you CPU default volts) and the 2nd will be disabled but you can set them manually to CPU VID = 1.4 and OverVID to 3.3% / 5% etc to let the CPU use higher volts when Oc'd. Good luck !

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Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem.

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Yes even when I have Intel C-STATE and Intel EIST disabled.
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Hello engfpe,
Take a look at the example bellow.
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Attachments:
Voltage (non-regeneration) - Continuous Output.vi ‏72 KB

Cannot change CPU Voltage??(first time here)

Hi,
My first post Here.
I've been trying to check the limits on my hardware after reading a lot of OC-guides.
I have;
K8N SLI Platinum (bios 3.7)
3200+ Venice
2 Gb Corsair 2*1024 CL2
POV 7800GT
for the moment a Seagate 200 Gb EDI-disk.
Tagan 580 W PSU
When trying to get my CPU over 2,5 GHz I wanted to raise the voltage from 1.4 BUT I cant.
Maybe I am doing some newbie-error or missed something obvious??? but I can not change it. Cannot find anything here about it either(maybe I'm just lousy to search).
I cannot go to that line in BIOS, it'a just a cross in front of that row.
Please, tell me I'm diong something wrong that is very easy to fix.
Maybe someone with the same hardwaresetup can tell me how much I can expect to OC this rig? some settings

In Cell Menu you will find something like CPU VID / Over VID. The first will be set to Startup (=you CPU default volts) and the 2nd will be disabled but you can set them manually to CPU VID = 1.4 and OverVID to 3.3% / 5% etc to let the CPU use higher volts when Oc'd. Good luck !

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[SOLVED] how to prevent suspending/sleeping when closing laptop lid

Hi all,
My laptop, a Lenovo Thinkpad T430u, suspends whenever I close the lid. It's been doing this since I first installed Arch. I want to turn this feature off. How can I do it?
Relevant information:
acpid is installed
the configuration file /etc/acpi/handler.sh
#!/bin/bash
# Default acpi script that takes an entry for all actions
case "$1" in
button/power)
case "$2" in
PBTN|PWRF)
logger 'PowerButton pressed'
logger "ACPI action undefined: $2"
esac
button/sleep)
case "$2" in
SLPB|SBTN)
logger 'SleepButton pressed'
logger "ACPI action undefined: $2"
esac
ac_adapter)
case "$2" in
AC|ACAD|ADP0)
case "$4" in
00000000)
logger 'AC unpluged'
00000001)
logger 'AC pluged'
esac
logger "ACPI action undefined: $2"
esac
battery)
case "$2" in
BAT0)
case "$4" in
00000000)
logger 'Battery online'
00000001)
logger 'Battery offline'
esac
CPU0)
*) logger "ACPI action undefined: $2" ;;
esac
button/lid)
case "$3" in
close)
logger 'LID closed'
open)
logger 'LID opened'
logger "ACPI action undefined: $3"
esac
case $(cat /proc/acpi/button/lid/LID0/state | awk '{print $2}') in
closed) XAUTHORITY=$(ps -C xinit -f --no-header | sed -n 's/.*-auth //; s/ -[^ ].*//; p') xset -display :0 dpms force off ;;
open) XAUTHORITY=$(ps -C xinit -f --no-header | sed -n 's/.*-auth //; s/ -[^ ].*//; p') xset -display :0 dpms force on ;;
esac
logger "ACPI group/action undefined: $1 / $2"
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# vim:set ts=4 sw=4 ft=sh et:
dmesg output:
[ 1530.790532] PM: Syncing filesystems ... done.
[ 1530.805678] PM: Preparing system for mem sleep
[ 1530.844445] Freezing user space processes ... (elapsed 0.01 seconds) done.
[ 1530.856658] Freezing remaining freezable tasks ... (elapsed 0.10 seconds) done.
[ 1530.963435] PM: Entering mem sleep
[ 1530.963572] Suspending console(s) (use no_console_suspend to debug)
[ 1531.123543] iwlwifi 0000:03:00.0: iwl_pcie_cmdq_reclaim: Read index for DMA queue txq id (9), index 207 is out of range [0-256] 208 208.
[ 1531.124216] sd 0:0:0:0: [sda] Synchronizing SCSI cache
[ 1531.124579] sd 0:0:0:0: [sda] Stopping disk
[ 1531.360682] mei 0000:00:16.0: suspend
[ 1531.440517] ahci 0000:00:1f.2: power state changed by ACPI to D3hot
[ 1531.687309] PM: suspend of devices complete after 722.490 msecs
[ 1531.687784] PM: late suspend of devices complete after 0.469 msecs
[ 1531.688232] pcieport 0000:00:1c.3: System wakeup enabled by ACPI
[ 1531.714222] ehci-pci 0000:00:1d.0: System wakeup enabled by ACPI
[ 1531.727619] ehci-pci 0000:00:1a.0: System wakeup enabled by ACPI
[ 1531.754015] xhci_hcd 0000:00:14.0: System wakeup enabled by ACPI
[ 1531.767422] PM: noirq suspend of devices complete after 79.565 msecs
[ 1531.768301] ACPI: Preparing to enter system sleep state S3
[ 1531.797647] PM: Saving platform NVS memory
[ 1531.799282] Disabling non-boot CPUs ...
[ 1531.900721] smpboot: CPU 1 is now offline
[ 1532.004162] smpboot: CPU 2 is now offline
[ 1532.107554] smpboot: CPU 3 is now offline
I have pmutils and tlpinstalled
tlp config
# tlp - Parameters for power save
# Hint: some features are disabled by default, remove the leading # to enable them
# Set to 0 to disable/1 to enable TLP
TLP_ENABLE=1
# Seconds laptop mode has to to wait after the disk goes idle before doing a sync.
# Non-zero value enables, zero disables laptop mode.
DISK_IDLE_SECS_ON_AC=0
DISK_IDLE_SECS_ON_BAT=2
# Dirty page values (timeouts in secs).
MAX_LOST_WORK_SECS_ON_AC=15
MAX_LOST_WORK_SECS_ON_BAT=60
# Select a cpu frequency scaling governor: ondemand/powersave/performance/conservative
# Important:
# - You *must* disable your distribution's governor settings or conflicts will occur
# - ondemand is sufficient for *almost all* workloads, you should know what you're doing!
#CPU_SCALING_GOVERNOR_ON_AC=ondemand
#CPU_SCALING_GOVERNOR_ON_BAT=ondemand
# Set the min/max frequency available for the scaling governor.
# Possible values strongly depend on your cpu. For available frequencies see
# tlp-stat output, Section "+++ Processor".
# Hint: Parameters are disabled by default, remove the leading # to enable them,
# otherwise kernel default values are used.
#CPU_SCALING_MIN_FREQ_ON_AC=0
#CPU_SCALING_MAX_FREQ_ON_AC=0
#CPU_SCALING_MIN_FREQ_ON_BAT=0
#CPU_SCALING_MAX_FREQ_ON_BAT=0
# Set the cpu "turbo boost" feature: 0=disable / 1=allow
# Requires an Intel Core i processor and kernel 3.7 or later.
# Important:
# - This may conflict with your distribution's governor settings
# - A value of 1 does *not* activate boosting, it just allows it
#CPU_BOOST_ON_AC=1
#CPU_BOOST_ON_BAT=0
# Minimize number of used cpu cores/hyper-threads under light load conditions
SCHED_POWERSAVE_ON_AC=0
SCHED_POWERSAVE_ON_BAT=1
# Kernel NMI Watchdog
# 0=disable (default, saves power) / 1=enable (for kernel debugging only)
NMI_WATCHDOG=0
# Change CPU voltages aka "undervolting" - Kernel with PHC patch required
# Freq:voltage pairs are written to /sys/devices/system/cpu/cpu0/cpufreq/phc_controls
# CAUTION: only use this, if you thoroughly understand what you are doing!
#PHC_CONTROLS="F:V F:V F:V F:V"
# Hard disk devices, separate multiple devices with spaces (default: sda).
# Devices can be specified by disk id too (lookup with: tlp diskid).
DISK_DEVICES="sda sdb"
# Hard disk advanced power management level: 1(max saving)..254(off)
# Levels 1..127 may spin down the disk.
# Separate values for multiple devices with spaces.
DISK_APM_LEVEL_ON_AC="254 254"
DISK_APM_LEVEL_ON_BAT="128 128"
# Hard disk spin down timeout:
# 0: spin down disabled
# 1..240: timeouts from 5s to 20min (in units of 5s)
# 241..251: timeouts from 30min to 5.5 hours (in units of 30min)
# (see 'man hdparm' for details)
#DISK_SPINDOWN_TIMEOUT_ON_AC="0 0"
#DISK_SPINDOWN_TIMEOUT_ON_BAT="0 0"
# Select io scheduler for the disk devices: noop/deadline/cfq (Default: cfq)
# Separate values for multiple devices with spaces.
#DISK_IOSCHED="cfq cfq"
# SATA aggressive link power management (ALPM):
# min_power/medium_power/max_performance
SATA_LINKPWR_ON_AC=max_performance
SATA_LINKPWR_ON_BAT=min_power
# PCI Express Active State Power Management (PCIe ASPM):
# default/performance/powersave
# Hint: needs kernel boot option pcie_aspm=force on some machines
PCIE_ASPM_ON_AC=performance
PCIE_ASPM_ON_BAT=powersave
# Radeon graphics clock speed (profile method): low/mid/high/auto/default
# auto = mid on BAT, high on AC; default = use hardware defaults
# (Kernel >= 2.6.35 only, not with fglrx driver!)
RADEON_POWER_PROFILE_ON_AC=high
RADEON_POWER_PROFILE_ON_BAT=low
# WiFi power saving mode: 1=disable/5=enable
# (Linux 2.6.32 and later, some adapters only!)
WIFI_PWR_ON_AC=1
WIFI_PWR_ON_BAT=5
# Disable wake on lan: Y/N
WOL_DISABLE=Y
# Enable audio power saving for Intel HDA, AC97 devices (timeout in secs).
# A value of 0 disables / >=1 enables power save.
SOUND_POWER_SAVE=1
# Disable controller too (HDA only): Y/N
SOUND_POWER_SAVE_CONTROLLER=Y
# Set to 1 to power off optical drive in UltraBay (ThinkPads only)
# when running on battery. A value of 0 disables this Feature (Default).
# Drive can be powered on again by releasing (and reinserting) the
# eject lever or by pressing the disc eject button on newer models.
# Note: an UltraBay hard disk is never powered off.
BAY_POWEROFF_ON_BAT=0
# Optical drive device to power off (default sr0)
BAY_DEVICE="sr0"
# Runtime Power Management for pci(e) bus devices
# (Kernel >= 2.6.35 only): on=disable/auto=enable
RUNTIME_PM_ON_AC=on
RUNTIME_PM_ON_BAT=auto
# Runtime PM for *all* pci(e) bus devices: 0=disable / 1=enable
# Warning: experimental option, could cause system instabilities
RUNTIME_PM_ALL=0
# Set to 0 to disable/1 to enable usb autosuspend feature
USB_AUTOSUSPEND=1
# Devices from the following list are excluded from usb autosuspend
# (separate with spaces). Use lsusb to get the id's.
# Note: input devices (usbhid) are excluded automatically
#USB_BLACKLIST="1111:2222 3333:4444"
# Set to 1 to disable autosuspend before shutdown/0 to do nothing
# (workaround for usb devices that cause shutdown problems)
#USB_AUTOSUSPEND_DISABLE_ON_SHUTDOWN=1
# Restore radio device state (bluetooth, wifi, wwan) from previous shutdown
# on system startup: 0=disable/1=enable
# Hint: the parameters DEVICES_TO_DISABLE/ENABLE_ON_STARTUP/SHUTDOWN below
# are ignored when this is enabled!
RESTORE_DEVICE_STATE_ON_STARTUP=0
# Radio devices to disable on startup: bluetooth wifi wwan
#DEVICES_TO_DISABLE_ON_STARTUP="bluetooth wifi wwan"
# Radio devices to enable on startup: bluetooth wifi wwan
#DEVICES_TO_ENABLE_ON_STARTUP="wifi"
# Radio devices to disable on shutdown: bluetooth wifi wwan
# (workaround for devices that are blocking shutdown)
#DEVICES_TO_DISABLE_ON_SHUTDOWN="bluetooth wifi wwan"
# Radio devices to enable on shutdown: bluetooth wifi wwan
# (to prevent other operating systems from missing radios)
#DEVICES_TO_ENABLE_ON_SHUTDOWN="wwan"
# Radio devices to enable when wireless radio switch is turned on:
# bluetooth wifi wwan (Ubuntu + ThinkPad only)
#DEVICES_TO_ENABLE_ON_RADIOSW="wifi wwan"
# Battery charge thresholds (ThinkPad only, tp-smapi or acpi-call kernel module required)
# Charging starts when the remaining capacity falls below the START_CHARGE_TRESH
# value and stops when exceeding the STOP_CHARGE_TRESH value.
# Main battery (values in %)
#START_CHARGE_THRESH_BAT0=75
#STOP_CHARGE_THRESH_BAT0=80
# Ultrabay or slice battery (values in %)
#START_CHARGE_THRESH_BAT1=75
#STOP_CHARGE_THRESH_BAT1=80
# Set to 1 to disable use of tpacpi-bat on Sandy Bridge or newer Thinkpads
# and force usage of tp-smapi instead
#DISABLE_TPACPIBAT=1
# tlp-rdw - Parameters for the radio device wizard
# Possible devices: bluetooth/wifi/wwan
# Hint: parameters are disabled by default, remove the leading # to enable them
# Radio devices to disable on connect
DEVICES_TO_DISABLE_ON_LAN_CONNECT="wifi wwan"
DEVICES_TO_DISABLE_ON_WIFI_CONNECT="wwan"
DEVICES_TO_DISABLE_ON_WWAN_CONNECT="wifi"
# Radio devices to enable on disconnect
DEVICES_TO_ENABLE_ON_LAN_DISCONNECT="wifi wwan"
#DEVICES_TO_ENABLE_ON_WIFI_DISCONNECT=""
#DEVICES_TO_ENABLE_ON_WWAN_DISCONNECT=""
# Radio devices to enable/disable when docked
#DEVICES_TO_ENABLE_ON_DOCK=""
#DEVICES_TO_DISABLE_ON_DOCK=""
# Radio devices to enable/disable when undocked
#DEVICES_TO_ENABLE_ON_UNDOCK="wifi"
#DEVICES_TO_DISABLE_ON_UNDOCK=""
thanks guys
I love arch
Last edited by beitme (2013-06-08 10:05:37)

@ Karol, done
@ 65kid, here's my logind.conf
[Login]
#NAutoVTs=6
#ReserveVT=6
#KillUserProcesses=no
#KillOnlyUsers=
#KillExcludeUsers=root
#Controllers=
#ResetControllers=cpu
#InhibitDelayMaxSec=5
#HandlePowerKey=poweroff
#HandleSuspendKey=suspend
#HandleHibernateKey=hibernate
#HandleLidSwitch=ignore
#PowerKeyIgnoreInhibited=no
#SuspendKeyIgnoreInhibited=no
#HibernateKeyIgnoreInhibited=no
#LidSwitchIgnoreInhibited=yes
#IdleAction=ignore
#IdleActionSec=30min

Memory Problem on 790fx-gd70 - how to access DDR Voltage in BIOS?

I have been getting memory related problems on a 6 month old system. I could only boot from one stick of RAM (Corsair TW3X4G1333C9A) but even then system was not stable for gameplay or stability test though this stick did pass overnight memtest. I returned the board, cpu and memory for them to test. They diagnosed faulty RAM and replaced. Well it worked OK for 24 hours then I started getting BSOD "PFN_List_Corrupt" and "Memory_Management" crashes.
I tested the new sticks and one fails memtest after a few seconds with 2378 errors and the other, although it passes memtest with 20 passes, crashes out straight away on Prime95 Blend Test (i.e. the one that stresses RAM).
They suggested I enter DDR Voltage manually rather than relying on Auto but no matter what I seem to enable this option is greyed out. Does anyone know which settings need changing from defaults so I can get at the voltage section?
I have tried swapping around the dimms but they are all the same regardless so not a slot problem. Now of course, I don't see it as a RAM problem either unless I am the unluckiest person to keep getting bad sticks. So now I think maybe something on the board or CPU is causing damage to the RAM or at least causing it to mis-report. Could a fault in the memory controller be doing this and if so how can I test for this?
At my wit's end here. Hope someone has some ideas - either on how to access DDR Voltage in the BIOS or get to the cause of my problem.
Many thanks.

OK thanks for explaining a bit more . This power unit did get some very good reviews in the sub $100 from many sites and from these I thought it would suit my needs. I have arranged to try a friend's 650w next week.
I think I am maybe not being clear. I have had the system running OK for six months. I had had no need to test the ram and didn't bother with stability tests at that stage. I am not a gamer and use my machine more for video and graphics work. One thing I did notice from the start was the couple of games I do have on (Call of Duty and Fallout3) would give occasional freezes. I put it down to my now rather old hot GPU which I would get around to replacing in due course.
Now the real problems started recently when I got round to replacing the stock cooler with a Titan Fenrir. Trouble with this is it overhangs Dimm1 but in moving around the memory sticks I seem to have opened a real can of worms. I could only get it to boot from one of the sticks. This stick passed memtest but would crash out of prime95 and games would freeze within a couple of minutes.
Now, the retailers here in the UK told me to send back board, cpu and RAM. They tested all 3 but they only replaced the memory and as you can see from my first post the memory related problems have continued. The memory by the way is in Corsair's list as "100% tested compatibility". Is it possible that something about the CPU/Board that is damaging the RAM? If a stick is failing memtest (it failed another test too called Windiag) is that definitive? It is bad for sure or board/cpu misreporting? Am I right in thinking memtest86 does cannot distinguish faulty RAM from faulty memory controller? Is there a test I can do to check if the CPU alone is faulty?
I don't know if this means anything to you guys but when I ran the prime95 (Blend) recently with both sticks in it failed straight away on 2 cores but went on running on the other 2.
One of my other frustrations is I don't know anyone else with am3 board or memory so swap things around.
Any suggestions for pinning this down would be much appreciated. Just don't assume my knowledge is as great as yours . But I do learn. I never knew v x a=w for example. And I now know how to change DDR Voltage in the BIOS - I had been expecting a sub-menu where Auto was greyed out and in fact it was just sitting there waiting for me to press + and -. Very embarassing that I spent hours trying to change this when the instructions on what to do were right there in the help column!

785G-E53 (DDR3) - Is CPU Voltage configurable ? (presale question)

Hi,
i'm searching for the board which fits my needs, 785G-E53 looks like it (even if it does have 1 less SATA port due eSATA which i don't need), but since this is going to be a low power machine with Sempron 140 then CPU voltage adjustment is a must (on current board this Sempron 140 runs with 1.05V Vcore).
Because manual is not entirely clear on this, i would like to see a confirmation from MSI or someone who owns this board that this boards allows you to change CPU Voltage.
Thanks

Quote from: Henry on 27-November-09, 07:21:43
You also need to take into consideration the low cost $50-$80 micro ATX MB's seldom have the BIOS features their full size more expensive brothers do.
The BIOS features of both boards were pretty much comparable (it was GA-M85M-US2H (rev. 1.1), price in USD converted from EUR is close to $90), i account the difference to chipset, RAM module difference (1xDDR2 vs 3xDDR3) and different VRM.
Quote from: Fredrik on 27-November-09, 10:51:31
Lowering the processor speed, in MHz, will also lower power consumption. Performance will drop, too.
Another thing to consider is the PSU itself. 75% or 85% efficiency will amount to quite a lot. Normally PSU:s are configured for a certain level of demand, for example 100W. If you find a PSU specialising in low power consumption you will save a little more. I have had good experiences with Nexus PSU:s in that respect.
Lowering MHz does lower the power consumption, but not as much as lowering Vcore, and with 5 hard drives 61W is a extremly good result IMHO. PSU is not a issue here, that computer uses my spare Corsair HX520. Unfortunately i had two Enermax Modu82-425 going to RMA, so i don't really trust Enermax anymore even if the issues were rather small (clicking fan noise in 2nd case, electric buzz even with PSU turned off to 0 position in 1st case).
The real thing i dislike is the peak power usage when i turn the computer on, it jumps up to 110W (now and before board change too), which makes it impossible to use the picoPSU.
Before :
After :

How to change CPU voltage on a laptop?

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