Asus g51vx-a1 battery?

anyone know the battery life of the g51vx-a1 during basic web browsing and word documents, because i know it has a 6cell as apposed to 8662's 8cell?

 

no one has gotten this laptop and tested the battery yet?

 

I received mine last night but had it on AC power during app setup. You can buy a 9 cell battery for this PC from ebay. I have one on the way which should add some run time to the equation.

 

isnt there a program that can estimate your battery life?

 

try battery eater

 

I tested mine on battery tonight with a mix of email, internet browsing and gaming. Got about 1 hour and 45 minutes on the 6 cell battery. I have a 9 cell battery on order and will test that when I receive it.

This is with standard out of the box settings and no overclocking or under volting and keyboard back light on highest setting.

 

u can turn off the keyboard light off right? and are the cover lights off? what kind of gameing, heavy gaming or like minesweeper? and is yours the A1?

 

anyone else have a stock g51vx-a1 and has tested to see how long the battery last on menial tasks like Word and Internet.

 

just undervolt it to 1.113 and you should get around 2 1/2 hours with brightness down and using only word and wifi. -atleast thats what tevash estimated and im taking his word for it. im probably gonna buy the rx05 for college and since most my classes have power outlets ill probably carry the charger with me.

 

I got roughly 1 hour with standard settings/playing games.

Also with the keyboard lighting, u can turn it off/dim it

 

Could i also undervolt the gpu as well as the cpu? If it made a decent amount of difference you could almost have a 3 hour gaming laptop lol.

 

You cannot undervolt the GPU unless you do a vBIOS flash. We cannot edit the vBIOS since NiBiTor doesn't support our vBIOS yet.

The only way you could do it is if you edited the vBIOS with a Hex Editor which isn't easy by any stretch

 

Change the ID for your GTX 260M to a 9800M GTX and select rescan BIOS in the Adv. Info tab. NiBiTor will be able to read your card properly after that. Make sure you change it back to the GTX 260M ID before you save the BIOS.

Begin reading from post #49 to #64. http://forum.notebookreview.com/showthread.php?t=400299&page=5

 

Have done it before. The Asus vBIOS apparently has a different one from the Alienware one and NiBiTor just doesn't read it properly

 

Strange. May I ask fou for a copy of the GTX 260M BIOS please?

 

Here is rapidshare link

 

Thank you. NiBiTor opened your BIOS just fine and it read everything without a problem. If you follow the directions I have posted in the Alienware forum, then you can do it as well.

This is my present to you. I call it the "Soviet Special." I lowered the downclock threshold from 108*C to 100*C for safety, tightened the memory timings for performance and efficiency, and changed the clocks and voltages for all four levels for speed and power savings.

3D application: 600/1500/900 @ 1v
3D desktop: 400/800/300 @ 0.85v
2D desktop: 300/600/300 @ 0.8v
Idle: 160/320/80 @ 0.75v

Feel free to flash this onto your G51's GTX 260M. If you need me to mod certain parameters, I am also willing to do so as well.

I will leave the modified BIOS up for download until 12:00 08/09/09, so download it now while it's still available.

 

Haha.....thanks for the tip.....just didn't know you had to do the rescan thing.

Anyways, I'm looking at potentially undervolting the GPU to reduce temps since it runs hot enough already without me overvolting. Do you know any software programs that I can use to change my GPU voltage? I want to find the best voltage first before I flash it.

 

You can try Nvidia System Tools to alter the voltage for your card. However, I still recommend the old school method of flashing over NST as it is the most reliable despite being more time consuming.

 

Okay, I updated the BIOS as you asked. This revision is exactly the same as the one I posted back in post #17, except I lowered the voltage for the max level from 1v back to stock 0.95v. It is up to you to find out if 600/1500/900 @ 1v will be stable at higher temperatures.

Again, I will leave the attached BIOS up for download until 12:00 08/09/09, so download it now while it's still available.

 

Soviet, thanks so much for all your help. If I have time tomorrow, I'll try flashing it some......kinda worried about bricking the GPU though....

Anyways, +rep for you.

 

Thank you. Don't worry about bricking your GPU. I've bricked mine too many times using the BIOS from other cards, including yours. Some of them work, some of them don't work. A quick force flash always brings my GPU back to life, haha. Just make sure you dump backups of your original BIOS onto your boot drive.

 

So it only gets 1~2 hours?

Bleh, I'm going to need more than that for what I need; around 4 hours. I had planned on getting an Alienware M15x due to the smartbay battery giving it about 4 hours of life. I would perfer not to have to do that for the obvious reasons, and this laptop looked promising. But if that's as high as it can get, I don't know if it will work for me. =/

Has there been testing with the 9-volt battery that I missed?

 

You are being way too optimistic with the battery life on gaming computers. Alot of low end laptops don't even get that much battery life.

The 9 volt battery would probably push it to 3 hours at the most.

 

I realize that, which is why the M15x was attractive due to an unheard of battery life in gaming computers. I could make due with 3 hours, but 2 is a fairly average life for this type of computer, and unfortunately, I need above average. I've seen a number of gaming laptops of this caliber get around 3, so I know it's possible, but without that, I don't know if I could make the purchase.

I suppose I'll wait for reports of the 9-volt then.

 

Nine-volt battery? You mean like this one?

 

I believe they're referring to a 9-cell battery. A typical 9V alkaline battery has a capacity of about 400mAh which if translated to laptop battery life would approximately be 12 mins. (assuming a standard 6-cell, 4800mAh provides 3 hours of battery life)

 

Haha, I figured so. I was throwing up "what the hell" when Silverflash and TevashSzat were talking about nine-volt batteries. I have such a silly mind, haha.

 

I'm kind of lost about what you said soviet. If i do the whole flashing GPU to lower voltage like you put up will i get better battery life? Is flashing easy?

 

Flashing is easy, but is also tedious and time consuming. I suggest brushing up on GPU flashing before you attempt this. There are plenty of guides on NBR, including one very well written guide here in the Asus forum, and another written by me.

Many M570TU users have a P9xxx CPU paired with their GTX 280M, but can barely hit two hours doing the same amount of work. On my M570TU, I used similar clocks and voltages for my GTX 280M. Power management is set to high performance with the display brightness at 42%. My GTX 280M lower levels are undervolted, however my QX9300 is not. I brought the idle level down to 160/320/80 @ 0.7v and I can get around 150 minutes from writing my novel or browsing around the web while having a cup of coffee at the mall.

 

THIS, I MUST DO! im getting a g51vx-a1 soon so that will help alot/

 

how much more battery life would you say you could get if you undervolted the gpu to the lowest?

 

I don't know. 0.7v is the lowest available voltage in the GTX 280M BIOS. I can easily create a custom voltage using the voltage table and a simple hex edit, but I don't need it that low. If I do have the time, I'd say my card would be able to remain stable at 0.68v at bare minimum or something like that. The difference in battery life would be negligible at that small of a voltage change though.

These are the current clocks and voltages on my GTX 280M. All levels have been rigorously tested for stability.

3D application: 620/1550/930 @ 1.05v
3D desktop: 400/800/300 0.8v
2D desktop: 300/600/300 @ 0.75v
Idle: 160/320/80 @ 0.7v

In light of this, the main power saver would be a CPU undervolt, which I recommend you do over a GPU undervolt. That is where you would see the most benefit. Why didn't I undervolt my CPU? Because I don't care about long battery life as two hours is way more than enough for me already, and my CPU is ice cold as is at an idle speed of 1.6GHz.