Mubarik

As far as I know there's no way to enable turbo boost on lenovo y500 at all. They somehow disabled it on a hardware level probably. But you cant actually overestimate turbo boost effectiveness since, well... its just not quite effective to say the least. For example @ 790 Mhz clock 650M SLI will net you ~4200PP in 3DMark11 while @ 835 Mhz score will rise by only 150-200 points at best. Overclocking changes things though, ~5200PP @ 1050 Mhz, ~5400 @ 1100 Mhz and ~5600 @ 1200 Mhz and thats +10-20 FPS for your games, which is huge in most cases if you ask me.

so im going to get my new power supply, before I initiate I would like to know what you think about the overclocking in terms of how safe is it for this laptop. also, are you using some type of cooling mechanism such as a cooling pad and finally, whats the relation between base clock offset and memory clock? (how should I balance the two)......thanks :-)

Need more intel on this one dude. Which card, which PSU are you using, in which programs gpu throttles?

Official lenovo 170W, bought it about six month ago.

ok thanks, just one last thing...Lenovo has stopped the GPUs from using NVidia GPU boost which takes the clocks to 835MHZ, is there some way I can enable that without a BIOS mod. Since Nvidia Boost is better than overclocking, since the former only kicks in when the cards are really being stressed, is there a solution.

Yes, your PSU is a problem here. I have both 120 and 170W PSU's and can confirm that in SLI mode they will throtlle themselves to lower frequencies (lower than 790 Mhz in most cases) due to insufficient PSU, some heavy duty processing might even crash laptop (happened to me twice with 120W PSU). So in short - you need that 170W brick to be able to use your SLI efficiently, especially if you planning to overclock it.

:23_002:oh damn...thanks a lot for the heads up.....so which 170W PSU do you have?

You can run @ 900 Mhz even without upgraded BIOS. With upgrade you can run your SLI at 1050 or even 1100 Mhz, depends on ASIC quality of your cards.

upgraded successfully to stock bios v.2.02 after a brief scare but gpus are still stuck at 790 MHZ after increasing the base clock offset by +45 (tried seaparately with both NVidia SLi inspector and MSi afterburner) another thing my laptop came with 120w power supply, will this be enough to clock the gpus to 835MHZ or at the max 900MHZ? Can you please provide me with the guidelines...if its possible without modding the BIOS id really appreciate it coz im scared as hell trying to mess with the BIOS (brand new laptop)...

Hi Guys,

I'm having a lot of trouble enabling the drive caching through ExpressCache-I've tried reinstalling it and trying to have it detect the SSD cache on my y510p, but it never reads anything. Any suggestions?

run DOS as windows administrator...type eccmd<put a space>-info.....it will show you the details....check your used size value and remember it....now run a game...minimize the game and run eccmd<put a space>-info again as instructed...the used size value should increase....if its already at around 14gb(when running windows 8.1 update 1) when you first checked then its working.

is yours the Centrino one?

try the recovery button....were you upgrading to a stock or mod bios?

I noticed that the 750 SLI y510p laptop on Lenovo now includes 16GB of RAM. The model I purchased off of the outlet only included 8GB of RAM. So, the age old question; Will I benefit graphics wise by going to 16GB from 8GB?

I have read that increasing the RAM will allow a video card to use more system memory, capping at 4GB. My impression is that a single card would not benefit from the increase. But what about the SLI configuration?

Thank you!

games that are really open world will....that's why the consoles went with 8....I have a y500 with 650m sli and 16 gb and I feel content knowing I wont run out of memory anytime soon....once dx 12 gets released the minimum requirements for gaming are gonna go down.

after upgrading the BIOS can I run my 650m SLI at 900 MHz.....have you tested it out at this clock?