Ideapad S400 - what am I losing if I choose Core i3 (Sandy) vs. i5 (Ivy)

Hi everyone,
I'm getting a new Ideapad S400 as a backup PC and my options are restricted to the Core i3 (Sandy Bridge 2375M) and Core i5 (Ivy Bridge 3317U) models. Right now Core i3 is a lot cheaper than i5 in my market (about $150 less).
Question is, am I losing much by going for cheap?
Specifically, would an Ivy Bridge i5 processor bring better battery life or *much* improved performance over the previous-generation i3? I know the S400 is notorious for its low batt life.
As for getting the cheap option and upgrading it, I already have a Samsung 840 SSD and 8GB of RAM waiting for the laptop here, so either model would get the same upgrades.
Thanks in advance for your insights!

hi livino,
Regarding your concerns:
1. With the custom upgrade you have in mind and If you'll be using the Ideapad S400 for basic use (i.e. Stream music/videos, play flash games, etc.), you really won't notice that much difference between the Intel® Core™ i3-2375M Processor (3M Cache, 1.50 GHz) over the Intel® Core™ i5-3317U Processor (3M Cache, up to 2.60 GHz) unless you'll do heavy multi-tasking or a benchmark test (the i5-3317u has Turbo Boost)
CPU Benchmarks:
Intel® Core™ i3-2375M
Intel® Core™ i5-3317U
2. The Intel Core i3-2375m and the Intel Core i5-3317u both have a max TDP of 17W so battery life wouldn't be that noticeable but the I5-3317u have a slight edge on performance when both PC run on battery power as it has a higher clock speed and a bit faster integrated graphics
Integrated Graphics Benchmarks:
Intel HD 3000
Intel HD 4000
If you have a tight budget and will just use the laptop for basic use, the Ideapad S400 with an Intel® Core™ i3-2375M will be sufficient for everyday use.
Regards
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IdeaPad S400 Touch Windows 8 reinstall

Hello to all. This is my first post on this forum. I bought a IdeaPad S400 Touch several months ago (October) and one of the first things I did was create a backup image on an external hard drive using the tool in Windows 8. I then wiped the hard drive completely in order to install Ubuntu. I was going to put Windows 8 back ont he machine and have the two running side by side. However, I have not been able to reinstall Windows 8. I physically took the hard drive out of the laptop and completely erased it using Disk Utility on my Mac, making sure that the disk was reformatted as MS-DOS. I also created a separate partition, named Lenovo, of 20GB that contains the backup files from my original backup. Still, using OneKey recovery doesn't work, and I am unable to reisntall Windows 8. Please , would someone tell me what I am doing wrong and if there is any way to fix this mess I have created? I will say things were so much easier back in the good old days when PCs shipped with recovery media. Thanks.

Hi Robert,
Welcome to Lenovo Community!
I’m sorry to hear that the OKR (One Key Recovery) is not working as expected in your S400 touch Laptop, let me inform you that once the partition structure HDD (Hard Disk Drive) gets modified the hard disk recovery corrupts, if you have created the recovery media then you can use them and restore the Operating System. Please try running OneKey Recovery from hard disk, power off the laptop then press Novo button instead of pressing power button and check if it works and if OKR does not work. I suggest you to contact our Technical Support Team to get the details of the nearest Authorized Service Center to get the issue analyzed.
Click here to open a link where you can select the country and get the exact contact support number. I’m sure they will be a great help.
Do post us back for further queries.
Best Regards
Shiva Kumar
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Ideapad s400 touch Wont power

Ideapad s400 Touch
Windows 8.1
Hello ive recently made a factory reset on windows 8.1, everything worked ok and I decided to update and shutdown. Today i turned on the machine everything seemed ok and proceed to shutdown again, and when I come back 2 hours later I cannot power on the machine there is no indication that theres power in the system nothing boots up no sounds, no leds nothing. I tried changing ac outlets, removing the battery, doing a discharge pressing the power button, and tried using the Onekey Recovery button on the side of the power button. I have no idea what went wrong, im around machines all the time and where this laptop is I have other computers aside. Im not sure if i need to remove the bios battery or what step should i take.
Thanks in Advanced.

hi x8lars,
Welcome to Lenovo Community Forums!
Can you try changing the power plan on your system to a High Performance Settings,
Also check the Advanced power settings and make sure that the Maximum Processor start and minimum are set the same with the Plugged in.
Let me know your settings,
Cheers!
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Windows 10 drivers ideapad s400

Tenho ideapad s400, atualizei para windows 10, porém driver Wlan wifi não está funcionando,oq eu faço?

Hola Rodrigo95 que tal,
La S400 no tiene soporte para Windows 10, te recomendaría:
1.-Verificar en administrador de dispositivos/adaptadores de red si esta la tarjeta WIFI.
2.- En tema controladores el ofrecido por Windows 10 debe funcionar, si no lo hace verifica paso 1 , si falta el controlador intenta con el de Windows 8.1. https://support.lenovo.com/es/es.
Un saludo

Hyper-V on Ideapad S400

Hi. Has anyone succeeded in enabling Hyper-V on Ideapad S400 under Win 8 64 ? It all seems to be okay, the MachineSLATStatusCheck says it is a SLAT capable machine, coreinfo -v says Hypervisor is present, VMX and EPT are supported, in Control Panel>System Security>System>Advanced System Settings>System Properties>Advanced>Performance>Settings says "Your computer’s processor supports hardware-based DEP", but the Hyper-V item does not appear as a Windows resource to activate. I installed the Windows Phone 8 SDK, and in the end it greeted me with "Hardware virtualization is disabled on this PC. You must enable it through the BIOS settings. For more information, see MSDN article at http://go.microsoft.com/fwlink/?LinkId=252010" and also with "Failed to add current user to Hyper-V administrators group.". I took a good look at the BIOS options, but the only one which seems to relate is "Intel Virtual Tecnology -Vanderpool technology", that I suppose is the Intel VT-d and is recommended to be disabled. Anyone ?

Keep in mind that Hyper-V isn't available in the base Windows 8 or 8.1. Pro is required.
Z.
The large print: please read the Community Participation Rules before posting. Include as much information as possible: model, machine type, operating system, and a descriptive subject line. Do not include personal information: serial number, telephone number, email address, etc. The fine print: I do not work for, nor do I speak for Lenovo. Unsolicited private messages will be ignored. ... GeezBlog
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Ideapad s400 touch bios or other hidden power management while on battery? or battery just weak?

Hi,
I have problems with performance when unplugging my ideapad s400 touch, and it does not seem to be related to windows or intel graphics power settings.
Example, while plugged in with full battery (not charging), I can play Skyrim at 600x800 with 28-30 fps (all shadows turned off and with reduced textures, in case you are wondering how that is possible)
But when I unplug, or the computer is charging, the game will be only barely playable at 480x640 with 18-26 fps (besides res. of course same settings).
In both cases, the intel graphics options and in the Lenovo Energy Management is set to the high/max performance settings.
So I am wondering if there are some hidden Bios power management or some other hidden power management going on, when it is unplugged or charging?
Or if simply the battery can not deliver the same juice as when it is plugged in?
Thanks for any help,
L

hi x8lars,
Welcome to Lenovo Community Forums!
Can you try changing the power plan on your system to a High Performance Settings,
Also check the Advanced power settings and make sure that the Maximum Processor start and minimum are set the same with the Plugged in.
Let me know your settings,
Cheers!
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Ideapad S400 Brightness Problem

I'm having a problem with a Lenovo Ideapad S400 Laptop on Linux. The brightness in any linux distribution is very low in comparison with windows 8 brightness.
Some people also had the same problem when downgrading from windows 8 to windows 7. See:
https://forums.lenovo.com/t5/IdeaPad-S-series-Netbooks/s405-s400-screen-brightness-issue-after-downg...
According to lenovo support, the problem is that brightness settings have 101 steps on windows 8 and only 16 steps on windows 7. See this picture to compare:
http://support.lenovo.com/en_MY/research/hints-or-tips/detail.page?DocID=HT076504
Is there a specific solution to this problem on linux? For example, a procedure to force the brightness, a kernel module, a solution to a similar problem in another laptop, etc.
Solved!
Go to Solution.

Hi, this problem was corrected on kernel 3.8.3 by the kernel developers! I'm happy to say that many lenovo laptops now work in linux. Unfortunatly, not in windows 7 yet.
Instructions on ubuntu:
-go to http://kernel.ubuntu.com/~kernel-ppa/mainline/
-folder kernel 3.8.3
-in our case, download linux headers...amd64, linux-headers...all-amd64, linux-img...amd64, linux-image-extra....amd64
-open the terminal
-sudo dpkg -i *.deb
-reboot and enjoy
PS: Intel has release a new driver for INTEL HD Graphics that works smoothly with ubuntu and it is easy to install.
instructions on ubuntu:
-go to https://01.org/linuxgraphics/
-the rest is easy to follow
i hope this will work also on other laptops and linux distributions

Ideapad s400 no me anda la camara web

Hola tengo un problema con mi ideapad s400 la reinstale windows y le puse windows 7 de 64 bits!, el tema es que no me anda la camara wab! en el administrador de dispositivos me figura como instalada y habilitada! pero cuando quiero utilizarla con skype o con las videos llamadas de facebook, ambos programas me dicen que no me reconocen la camara o no la detectan! probe de cambiarle los drivers y nada! la verdad que no se que hacer! descargue los drivers de la camara de esta pagina las dos opciones que te me daba y nada! Ademas de esto en el administrador de dispositivos me sale un "dispositivo Desconocido" que no lo reconoce winddows y no se de donde descargarle el driver . en el id del dispositivo dice "root\lenovoVhid" espero que me puedan ayudar con eso! muchas gracias.

Hola Lyords que tal,
Tu s400 tenia Windows 7 como sistema operativo pre-instalado?
Desde administrador de dispositivos / dispitivos e imagenes quita el controlador, en teoria dices que este esta instalado y funciona, luego instala este controlador http://support.lenovo.com/es/es/products/laptops-and-netbooks/ideapad-s-series-netbooks/ideapad-s400-notebook/downloads/DS030370 , reinicia figurara en administrador de dispositivos?, de ser el caso realiza un test de la cámara web http://www.testwebcam.com/
El controlador desconocido, tienes instalado el energy management, si no lo tienes instalarlo http://support.lenovo.com/es/es/products/laptops-and-netbooks/ideapad-s-series-netbooks/ideapad-s400-notebook/downloads/DS029488
Un saludo.

Ideapad S400 Touch - HDMI to VGA problem

Hi,
I need to connect Ideapad S400 Touch to projector which has only VGA input. Therefore, I've bought such converter:
http://www.amazon.com/Black-Input-Adapter-Converter-Laptop/dp/B007KFVQXI/ref=pd_sim_e_4
Unfortunately, whatever I connect through it (projector, tv, PC monitor) I always have no signal...
I tried HDMI direct connection toTV - works
I tried HDMI to DVI converter and connect to PC monitor - works
but when I use HDMI to VGA like one mentioned above - always "no signal"
Please help. I bought this laptop and now find it useless as I present on beamers very often and am completly stacked now...
Any suggestion would be highly appreciated!
Thanks!

hi ro174748,
Welcome to Lenovo Community Forums!
The connection you need is a active coverter.
Passive connection just passes the signal and relay the signal without converting it.
Active connection converts the signal and relay it to the other end.
HDMI send / recieve digital Signal while VGA send / recieve analog
Your corrent covertion will not work if the device cannot recieve digital signals through VGA.
You will need an active converter such as this
http://www.newegg.com/Product/Product.aspx?Item=N82E16812400359
HDMI to DVI operates with Digital signal so no covertion needed, that's why it worked.
Here is a simple discussion about this issue.
Hope this helps
Cheers!
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Ideapad s400 no prende

hola amigos mi lenovo ideapad s400 no enciende lae conecto el cargador y no ase nada ni parpadean los foquitos ya compre nuevo cargador y nada

Buen día,
Bienvenido al Foro.
Te recomiendo realices un drenado de energía lo debes realizar de la siguiente manera
1.retires la batería y desconectas el cargador y presionas el botón de encendió por 50 segundos esta acción la realizas en tres ocasiones luego de liberar la energía estática procedes a encenderlo
Espero sea de mucha ayuda esta recomendación y a la espera de comentarios
Gracias y Saludos,
Johan Oñoro
Support Specialist
Comunidad en Español English Community Deutsche Community
Es importante recalcar también que los foros suplementan los recursos de los usuarios de Lenovo pero no reemplazan el servicio técnico oficial. Para un listado de números de servicio sigue el enlace: Numeros de Soporte

Ideapad S400 touchpad jumpy when ethernet cable plugged in

I have an Ideapad S400. Lately when i plug in my ethernet cable(router, switch, different cable, tried everything) the touchpad behaves erratic, but only if i run on battery.
Have updated drivers, reinstalled windows even tried ubuntu... same results.
I'm concerned it may be a hardware issue.
Anyone had similar problems?
FIx?
Thank you in advance
Solved!
Go to Solution.

hi piranja21,
Welcome to Lenovo Forums
You might want to try the Troubleshooting steps on this thread, your concern is somehow similar to this one,
Hope this helps,
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Ideapad s400 touch entrada tactil

mi ideapad s400 touch no le sirve la entrada tacil (touch)
me pueden ayudar

Buen día,
Bienvenido al Foro.
Para este caso te recomiendo
realices un drenado de energía lo debes realizar de la siguiente manera
1.retires la batería y desconectas el cargador y presionas el botón de encendió por 50 segundos esta acción la realizas en tres ocasiones luego de liberar la energía estática procedes a encender si no funciona realizas una restauracion de fabrica
Espero sea de mucha ayuda esta recomendación y a la espera de comentarios
Gracias y Saludos,
Johan Oñoro
Support Specialist
Comunidad en Español English Community Deutsche Community
Es importante recalcar también que los foros suplementan los recursos de los usuarios de Lenovo pero no reemplazan el servicio técnico oficial. Para un listado de números de servicio sigue el enlace: Numeros de Soporte

Brillo Ideapad s400

Buenos dias,
instalé windows 7 en mi lenovo ideapad s400 y al instalar los drivers de la tarjeta grafica (Intel HD Graphics 4000), el brillo de la pantalla se redujo aunque sigue apareciendo como que está al maximo. ¿Existe alguna forma de solucionar este problema y recuperar el brillo perdido?
Un saludo, y gracias de antemano.

Automáticamente Windows instala uno cual fue la versión que instalo para compararlo con la versión de la web de soporte y ver si el problema se soluciona en tema software.
Con la versión que instalo Windows puede intentar ir al link que le pase antes y que le instale una actualización.
Hay que descartar tema software, puede ir a las configuraciones de la BIOS cuando este hay intente subir el brillo con los atajos de teclado, este método fue una de las primeras soluciones en tema brillo hasta que se detecto que el problema pasaba por tema controlador de la Intel.
Un saludo
@Antony_Vamu
Comunidad en Español English Community Deutsche Community РусскоязычноеСообщество
Mis Lenovo: Y560p,Z580,Z500 touch,S920,T400,G50-70 ,Soy voluntario no trabajo para Lenovo, las opiniones expresadas por mi no representan a Lenovo, no se responde a preguntas de manera privada debes crear un nuevo tema, números del centro de llamada Lenovo Aquí , reglas de participación del foro Aquí , si encontraste solución a tu problema marcarlo aceptándolo como solucionado!!!!!

Lenovo ideapad s400 startup problem

i have lenovo ideapad s400 with windows7 was working good, but now its hanging Starting Windows please help

hi kuraysi,
Welcome to the Lenovo Forums.
Just to check, if you boot in Safe Mode, are you able to load Windows? If booting to Safe Mode works, perform a clean boot and observe. This will isolate any possible 3rd party software that might be inteferring with the Windows startup.
If that doesn't work and Windows is hanging up on the loading screen then we're probably looking at a corrupted Windows file or a bad hardware. In this case, you may need to:
1. Reload the system via the OneKey Recovery (note that all ways on the OS partition will be wiped)
2. If reloading Windows doesn't work or the machine freezes up then you're prolly looking at a bad hardware (possibly the HDD).
Let me know how it goes.
Regards
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What iOS Developer Program Should we choose.

Hello, this is my first question here,
I work in a development enterprise, and we want develop iOS Applications ONLY for our clients.
We have our Windows Based Desktop Application; and we want to give iPhone support to our clients, I think this is called B2B (Business to business) Applications. We don't want the app appears in the App Store, we need the app private, because we only want give acces for the app to our clients, and maybe we also need the work with the VPP (Volume Purchase Program).
Then, what iOS Developer Program should we choose?

hey was reading through it and um
Let me put it like this:
You do not need a iOS subscription to trade apps between clients if you do not intend to distribute them on the App Store.
this is all you do
- Buy Mac Computer
- Download xCode
- Make Apps
- Then distribute privately via email or an online app sharing tool.
I would assume that you would know the clients in person so you could just load the apps for them onto thier devices and the collect the money they owe after everything works well
Just to clarify for you:
The paid iOS subscription is to distribuate apps on the App Store.
Apple does not handle private dealings thats all on you.
hope this helps you!
best of luck

Ideapad S400 - what am I losing if I choose Core i3 (Sandy) vs. i5 (Ivy)

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