Need Major Video Card Help!!!!!!!!!!!!!!!!!1

Alright here the problem:i have a 8600m gt dedicated 256 mb ram. also i have vista home premuium and have 4gb of system ram....the problem is vista is "sharing" almost 1 more gig to the video card???? its has between dedicated and shared memory almost 2gb's!!! 1.7 to b exact!!! soooo HOW DO I CHANGE THIS ITS ABSOLUTELY KILLING GAME EPRFORMANCE!!!!!!

 

Its not killing your game performance, in fact it may be helping it. Its called turbo cache and in Vista there is no way to turn it off that I know of personally and have confirmed.

Here is what it is: http://en.wikipedia.org/wiki/TurboCache

This is how to turn it off in XP: http://www.neowin.net/forum/lofiversion/index.php/t570189.html

And this MAY work for you in Vista: http://www.techsupportforum.com/har...rd-support/204963-how-disable-turbocache.html

However I almost guarantee you that your performance will go DOWN not up if you turn it off.

 

Its probably not killing your gaming preformance at all. even witht he video card taking a gig of ram, you still have three for gaming which is more than enough. Even if you change the video card settings it will make next to no difference in gamins fps.

 

Are you sure you're not overheating?

 

BUT in case i did want to change it is there a way i remeber in xp your could just hit up the bios. but in vista or atleast this computer theres no way yo do that. and yes when i play crysis it does hurt it!!! before when i had 2gb ram it actually played better. btw i just installed a new video driver...175.16. if that helps any. when i used xp with 4 gb of ram it flew(crysis) now when i put vista one here it ran fine till i put 4 gb on board now its dedicated 1.7 gb of ram to the video card.....hell crysis "likes" atleast 1or moregb of ram its self.same with vista

 

my gpu runs at 56degrees

 

my hdd is massivly in need of defragmenting....tim for perfectdisk 2008...as we speak

 

Is this vista 32 or Vista 64?

If its vista 32, you cannot address all 4GB, AND the video RAM, AND the reserved RAM. You will have less RAM available not because of shared RAM, but because of 32-bit OSs not having enough address space.

8600s with 256MB do not often grab more ram because they quite frankly don't use much more. It is possible your drivers are bungling this, but I doubt it.

How do you KNOW its the 8600 grabbing RAM?

 

TurboCache, if it's working correctly, will only use system memory when it is available. If any other program requires the memory, the program takes precedence, NOT TurboCache. TurboCache is designed to "help" the graphics card when it runs out of video memory for textures, nothing else. As rightly stated by KernalPanic, the 8600 with 256MB rarely steals system memory. It has enough. I would associate you drop in performance to the harddrive being soo fragmented and the pagefile being increased as a result of the extra memory, try limiting your pagefile to something sensible, Windows by default tries to create a pagefile 1.5 times bigger than your memory, which with 4GB of ram means it will try to make a 6GB pagefile. Your harddrive is slow compared to ram so it will limit performance when a program pages to it.

 

There is absolutely no reason that should be making Crysis slower. It is more likely that your drive is fragmented or you card is too hot. It shows up just the same for me in Vista, that my card has lots of ram 'available' as shared, but it does not hurt performance at all. Without this enabled, Crysis would cause your system to grind to a halt the second your GPUs RAM was filled (which Crysis does). TurboCache allows the game to store vRAM data in the RAM instead of the hard drive.

 

Because his computer told him so, its called turbo cache I seriously answered his question in the very first post with every bit of information he could need.

 

Just because the system tells you it has that much ram does not mean it uses that much ram. As pointed out, the links given in your post, ViciousXUSMC, do indeed answer the question, but do not necessarily solve the issue.

 

No the guy above is blaming the x86 environments restriction to memory address space on the issue, when its quite clearly turbo cache thats what I was pointing out. Windows does tell you XXXX shared memory and it can use up to that much memory if needed for turbo cache.

I have it on my system even.

When you see this:



and it quite cleary says shared system memory you know its not x86 holding the memory nor is it your hardware, its turbo cache.

As for solving the issue, what issue is there to solve?

 

A misunderstanding. I was referring to the fact the the system is reporting all the memory being available for the graphics card is not necessarily what it will use. Not the x86 memory address space issue.
What issue to solve? How to turn off turbocache, and why it is killing game performance when its not turbocache causing the problem.

 

ok i understand now it seems i could run crysis on high settings with 4gb and win xp......but, with vista ....different story.....i can run crysis on medium settings only now at the sytem defalt 1280X800 resolution. im guessin because of dx10. but ihave to say even all settings on medium it looks amazing with dx10!!!

 

btw whats too hot for the 8600m gt card? i have gpu z and its tellin me i im runiing around 60 degrees. is this too hot and would the new 175.15 driver i installed b causing any problems here? i dont THINK a driver would cause a overheating problem......not sure..

 

and NO nothing is overclocked at all i dont belive in it...if i wanna go faster ill build it fast to start with so i dont have to overclock.

 

Is that 60C gaming or idle? I idle at around 55C and get to 93C when gaming so unless you get higher when gaming it is not really an issue. There are plenty of posts here about the 8600m temperature, have a look at them. My temps seem high and as soon as my notebook turns 1 I'll be spending some time with my notebook apart trying to work out how to better cool the card.

 

Yeah if your defaulting to DX10 instead of DX9 in Vista thats your answer for sure in why performance died.

However you can force DX9 if you prefer it.

 

Here's the problem... a 256MB card with a 128-bit bus has quite literally no use for more video texture RAM in most cases.

IF his system is grabbing System RAM for textures, it is probably malfunctioning.

In a game like Crysis, more system RAM is probably better than more texture RAM with 256 dedicated on a 128-bit bus.

Why would the 8600 summon more texture RAM when it probably doesn't need it?

All this said and done, the system RAM/cache is not likely the problem...
(and this is why I asked how he knows this, I didn't know where he was gathering his facts)

Vicious, more info is better... and more minds on it is better.
Let's be honest... both of our original solutions are not on the money in this case.

OP, use DX9 mode by rclicking on the game and choose run in DX9 mode.
If this runs similarly, then the new features enabled by dx10 mode are what are dragging you down. Turn those settings down in DX10, or use DX9.

 

Yeah, just one key thing to point out.

Turbo Cache is "Shared System Ram" not "Stolen System Ram"

It only uses it if it actually does need it, and the system gets priority. With 4gb of ram (about 3.25 of it available inside windows x86) there is more than enough ram there for the system & turbo cache, even more so in a laptop than a high end desktop due to the settings we usually play a game on.

I have maxed out games on my c90 and never had ram be what was holding me back in my c90, and have not even seen a difference in games when switching between 2gb and 3gb of ram. The only place I have seen a difference is in video rendering.

 

The confusion about Purevideo is as deep as the confusion about bitwidth.
Check out nV's whitepaper it may help;
http://www.nvidia.com/object/IO_17361.html

As long as the application needs the memory it will use it, but still system priority. It's better for it to optimize it's use than to do a texture swap through the standard system path (which is what happens if it isn't there). It's there if you need it and it's doesn't steal it from other apps. Think of it like the old AGP aperture size (if you even understand/understood how that works) in that it's telling you what's available for it to address as additional VRAM not what's being currently used.

And just one other thing...
So this 128bit theory everyone has, does a 256bit interface with GDDR3 running at 600(1200)Mhz like on the GFGO7900GTX have more use for greater than 256MB of memory than a card with 128bit GDDR5 running at 2000(4000)Mhz?

Just curious how that works since it seems to be a myth that has lots of proponents here, and it doesn't make sense other than the cards that are usually attached to it are usually weak, and often the memory is slow, but that's never mentioned, it's always just the bitwidth as if a GFGO6800 with 300(600)Mhz DDR could use it because it has 256bit memory whereas the GF8700M and HD2600XT would have less utility due to their 128bit 800(1600)Mhz memory.

 

ok guys ive read all the posts and it cleared up alot i know quite a bit of computer (by far not enough). but i do need a helping hand .and you guys did that for me.......but, on my old hp laptop i could change the in the bios the amount of "shared " system memory my card would use...that was like back in 04 thoo...anyhow this answers my question and thank you

btw i did solve the issue with dx10 and vista . ifound if i lower my settings from all high to all medium .then it plays VERY SMOOTH .and averages about 30fps....lows about 25 but very rare....it keeps rite at 30fps all the time. running a system res of1280X800(factory res) . i was with xp running 30fps at all high settings. had to lower them for dx10 and vista ,but it still looks better than xp on high..