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UPDATE: ALL DOWNLOADS LISTED IN THIS POST FOUND HERE. Nvidia 'Kepler' GPUs - modified VBIOS files >>> NOTE: More versions (including voltage mods) exclusive for T|I users can be found in the second post. <<< The 'Kepler' GPUs from Nvidia perform really well, even at increased clocks speeds they stay quite cool - a perfect behavior when it comes to overclocking and improving the performance. Unfortunately the mobile GPUs suffer from an artificial +135MHz core overclocking limit, so you can't go higher by using tools like Nvidia Inspector and similar. The modified VBIOS files listed here have this limit unlocked, some have increased stock clocks or tweaked voltages. Just refer to the description. All files have been modified by myself, if you like them feel free to buy me a drink, donation link can be found below GTX 660m: 660m_OC_edition__VBIOS_[DELL].zip- comes with unlocked software overclocking limits 660m_GHz-Edition_overvolted_VBIOS_[DELL].zip - default 3d clock 1000MHz, base boost 1200MHz,, memory (3d) 1350MHz, increased 3d voltage undervolted editions possible, depends on interest, tba Some screenshots: GTX 680m: Clevo_680m_-_80.04.33.00.10_'OCedition'_revised_01.zip Dell_680m_-_80.04.33.00.32_'OCedition'_revised_00.zip Increased software overclocking limits & optimized for no throttling. Read the included 'Read me' file before flashing. Instructions: I recommend flashing under DOS using nvflash . Donation link in case you want to buy me a beer Thanks and cheers! More to come. Testers: Thanks @eliteone (Dell 660m), @littleone562 (Dell 680m) For all mods: Use at your own risk.

More stuff exclusive for T|I users, voltage mods: All the vbios listed here are attached at the end of the post. ******************************** Nvidia 800m series: Nvidia GTX 880m (8GB version only): 'OC edition' -> unlocked overclocking limits, voltage adjustable, power target adjustable, optimized performance at higher clocks Can be used for all current 880m (Clevo, MSI and Dell). Nvidia GTX 870m: 'OC edition' -> see above Nvidia GTX 860m (GK104 variant): 'OC edition' -> see above. Refer to the file name to know which version is suited for your system. NOTE: Only for the Kepler version of the 860m. Silly Nvidia started giving different GPUs the same name. ******************************** Nvidia 700m series: Nvidia GTX 780m: 'OC edition' -> unlocked overclocking limits, voltage adjustable, power target adjustable, optimized performance at higher clocks Can be used for all current 780m (Clevo, MSI and Dell). Nvidia GTX 770m: 'OC edition' -> see above Nvidia GTX 765m: 'OC edition' -> see above. Refer to the file name to know which version is suited for your system. ********************************* Nvidia 600m series: MSI GTX 680m (4GB version): 'OC edition' revised -> higher limits for software overclocking, stock default clocks ----------------------- Dell GTX 680m (2GB version) vbios: 'OCedition' revised -> higher limits for software overclocking, stock default clocks same with increased 3d voltage ('OV') -> refer to the file name ----------------------- Clevo GTX 680m (4GB version) vbios: 'OCedition' revised -> higher limits for software overclocking, stock default clocks. For P1xxHM based systems I recommend only using version 80.04.29.00.01 !! Some users reported issue with other vbios versions (stock or modified, doesn't matter). EM users make sure you're on the latest BIOS / EC same with increased 3d voltage ('OV') -> refer to the file name (Same warning as above applies to P1xxHM users). ----------------------- K3000m: (Nvidia) K3000m - 80.04.3A.00.07 'OCedition' -> higher software overclocking limit Should work on all K3000m, unless you got a board ID mismatch. (HP) K3000m - 80.04.33.00.2E - 'OC edition' - > same as above, but probably the better choice if you use a HP machine ----------------------- K5000m: (Dell) K5000m - 80.04.33.00.35 - 'OCedition' -> higher software overclocking limit, stock 3d clocks 758MHz It's Dell but should work on all K5000m, unless you get a board ID mismatch. ----------------------- GTX 670mx: MSI 670mx (1.5GB) - 80.04.5B.00.A5_'OCedition'_rev00 -> higher software overclocking limits, tweaked performance at high clocks. Same board as the Clevo card. Clevo 670mx (3GB) - 80.04.58.00.03_'OC edition'_rev02 -> same as above, plus voltage is adjustable per software. ---------------------- MSI GTX 675mx: MSI 675mx (2GB) - 80.04.58.00.14_'OCedition'_rev00 -> higher software overclocking limits, tweaked performance at high clocks. MSI 675mx (4GB) - 80.04.58.00.0E_'OCedition'_rev00 -> same as above, vbios for 4GB card (!) ----------------------- Clevo GTX 675mx: Clevo 675mx (4GB) - 80.04.58.00.05_'OCedition'_rev00 -> higher software overclocking limits, tweaked performance at high clocks. ----------------------- ASUS G75VW BIOS: - 660m at 1000MHz core / 1400MHz memory - additional BIOS menus http://forum.techinferno.com/asus-gaming-notebook-forum/2538-%5Bg75vw%5D-modified-bios-vbios-higher-overclocking.html ------- Donation link in case you want to buy me a beer Thanks and cheers! *** FILE DOWNLOAD LOCATION:

If XTU works it certainly is a good option for CPU overclocking. Your CPU has a semi-unlocked multi which allows to adjust it slightly, as you already figured out. MSI afterburner, Nvidia Inspector... any of the known overclocking tools will do, no need for a custom vbios, however you will notice throttling at higher overclocks when using the stock vbios, and you will be limited to +135MHz on the core.

As I have recently got 2 x Crucial M4, I opted for a Silverstone TS06. This has allowed me to use the caddy for the second SSD and at the same time still have a ready-to-use optical drive in the USB enclosure. Installation is straightforward (and well documented by the manufacturer). Sorry for the lousy pics (and if L502x owners find the pics weird, well... mine is painted black) Caddy vs. optical drive : XPS od face plate fits perfectly on the caddy. Same goes for the optical drive plate that TS06 comes with: Also, the rear metal bracket (the one that attaches the optical drive to the laptop) fits perfectly on the caddy: BIOS screen after installing the caddy: Caddy installed, faceplate sits flush: Optical drive in the enclosure, connected to the laptop: My setup is: dual-boot Linux/Windows. Windows is used exclusively for occasional gaming and is installed on the second SSD, the one in the caddy. It's been three weeks with the caddy now, and I can't fault it. The laptop went through a lot of testing during this time: hundreds of reboots, partition mounting/unmounting, data copy between drives/partitions etc... Not a single glitch. All in all a fine product. Look, feel and performance: I'd rate it 5 stars out of 5. Gothcas, tips and tricks: None.

The time relies on the coin cell battery... only solution is to plug it back in. Regarding the ribbon cable, I can't really help, maybe the connector is broken, but as long as the cable makes proper contact, the tape should be an okay fix. Edit: Got ninja'd by Prema You say your GPUs are running at 648MHz? That's below stock 3d clocks... you have have 680m SLI, right? Using one of my vbios mod you can easily surpass the GPU score of the Sager system used in the review, by a lot. Edit 2: Make sure you're running on AC and not on battery, you can't reach full 3d clocks on battery.

Sager is full of shit in this review video, the benchmarks they show in the vid (e.g. at 25:23) aren't comparable at all. The Sager Vantage run did all the CPU calculation on the GPU (PhysX), that's why it has an insane score of 50k+. You have a 3840QM, and apparently you run the CPU test really on the CPU, so 25k is totally fine. If they had run the CPU test on the CPU as well, their 3610QM would have gotten them about 21k, CPU (Just in the Alienware M18x score they use as comparison). Seriously, that's just false advertising and pathetic, those two scores can't be compared. What astonishes me even more is that they tell you that it might be software running in the background... if you want such a crazy CPU score as well you simply need to enable PPU (you'll need an advanced version of vantage to change that setting if I'm not mistaken), but then your score is technically invalid since the CPU test is meant to be run on the CPU, not on the GPU. (Something Sager apparently doesn't know.)

You're right. I set Gen 1 compatibility mode in BIOS and it worked just fine. 3DMARK06 Scores 15767 But no luck with Gen 2. Windows just crackles with errors all the time and no Aero. I can't even open context menu anywhere, and trying to switch to external screen just kills Windows. GPU-Z still reports it's x1 speed Should I write to Bplus and ask for a replacement?