walhalla Posted August 7, 2012 Share Posted August 7, 2012 What have you changed? Second post ('Test versions') updated with three new Dell 680m mods. If you decide to flash any of it, please let me know how it performs, else I can't improve them. I don't have a 680m myself. Quote Link to comment Share on other sites More sharing options...
svl7 Posted August 7, 2012 Author Share Posted August 7, 2012 Higher clocks, and a slightly different approach regarding the mod. More specific information about the versions can be found in the second post. Quote Link to comment Share on other sites More sharing options...
walhalla Posted August 7, 2012 Share Posted August 7, 2012 Ok. Tests are done, all 3 ones. Unfortunately the 680m is still throtteling down to 222 Mhz. Higher clocks, and a slightly different approach regarding the mod. More specific information about the versions can be found in the second post. 1 Quote Link to comment Share on other sites More sharing options...
Shipwreck79 Posted August 7, 2012 Share Posted August 7, 2012 What I find especially puzzeling is the fact that the "deep" throttling with brief spikes down into the 200eds happens primarily with benchmark tools: for me, most prominently with 3DM11 and Vantage (as many other have stated, above +100 MHz OC Core, + 200 MHz OC mem), and less so with Unigine Heaven (for me, it's "stable" up to 900+ MHz). In games, I've yet to experience this behaviour. What's more, a higher OC yields a definite performance increase in gaming as expected, so it is only because of the throttling that 3DM scores start to go down again.However, there's another "soft" throttling that's especially apparent for me in WoW. Rather that erratically fluctuating between around 200 and max for less than a second, the GPU will clock to different freqs for extended periods of time. Most often when doing so, it will stay above default at 720+ MHz, seldom it will clock down to around 650 MHz. I am not sure that this is the same underlying mechanism, it could just be the "bored throttle" with less demanding games. It does, however, happen even when power settings are set to prefer maximum performance rather than adaptive and not only in less demanding scenes. 2 Quote Link to comment Share on other sites More sharing options...
svl7 Posted August 7, 2012 Author Share Posted August 7, 2012 Hmm, does the stock vbios also throttle when overclocked? You guys use the R4? Or the M18x R2? Quote Link to comment Share on other sites More sharing options...
walhalla Posted August 7, 2012 Share Posted August 7, 2012 In my m17x R4 (with stock bios) the card starts to throttle, if I use more than 80 Mhz oc. 800 plus turbo is without problems. Anything above is sh...... 1 Quote Link to comment Share on other sites More sharing options...
svl7 Posted August 7, 2012 Author Share Posted August 7, 2012 Crippled by Dell it seems... aarrrghhh Any M18x user here to share some experiences? Does the stock vbios throttle as well when overclocked? Any the modified versions? Quote Link to comment Share on other sites More sharing options...
Tonrac Posted August 7, 2012 Share Posted August 7, 2012 Could throttle problem be linked to support of turbo boost on dell card ?Cause Clevo card doesn't seem concerned and don't have this feature... Quote Link to comment Share on other sites More sharing options...
svl7 Posted August 7, 2012 Author Share Posted August 7, 2012 No idea... the Clevo vbios doesn't throttle at all? Quote Link to comment Share on other sites More sharing options...
Tonrac Posted August 7, 2012 Share Posted August 7, 2012 Only with software like furmark or if the heat rise the danger zone of 90 + °C ... (this is the behavior i see on mine ...) 1 Quote Link to comment Share on other sites More sharing options...
HrKristian Posted August 7, 2012 Share Posted August 7, 2012 Sorry, I somehow assumed you had a G75vw... the G55 has the GPU soldered to the mobo as far as I know, so you can't dump the vbios with the usual tools.Let me take a look at the BIOS. The screenshot you posted earlier is from your machine, right?Yep that's my machine I screencapped, a G55vw =)I saved them as .rom and .txt, does that work, btw?Oh and thanks Quote Link to comment Share on other sites More sharing options...
svl7 Posted August 7, 2012 Author Share Posted August 7, 2012 Only with software like furmark or if the heat rise the danger zone of 90 + °C ... (this is the behavior i see on mine ...) Okay... Let me mod some stuff. Yep that's my machine I screencapped, a G55vw =)I saved them as .rom and .txt, does that work, btw? Sure, I'll take a look at it after modding some Clevo 680m vbios. Can you post a link for the latest G55vw BIOS? Quote Link to comment Share on other sites More sharing options...
HrKristian Posted August 7, 2012 Share Posted August 7, 2012 Oh and for what it's worth, lspci returns "NVIDIA Corporation Device 0fd4 (rev a1)" on my G55vw, which is the same being returned on a G75vw Quote Link to comment Share on other sites More sharing options...
Eldaren Posted August 7, 2012 Share Posted August 7, 2012 svl7 here is the gpu-z log file for the Dell 680m.Dell 680m 850-889 3dmark11.txt 1 Quote Link to comment Share on other sites More sharing options...
Tonrac Posted August 7, 2012 Share Posted August 7, 2012 Sure, I'll take a look at it after modding some Clevo 680m vbios. I love to read that but take your time because i go to new york for 8 days ... @Eldaren : On 3Dm11 : Be aware that the card go to idle mode during the loading of the test (so between the different test) Quote Link to comment Share on other sites More sharing options...
svl7 Posted August 7, 2012 Author Share Posted August 7, 2012 Clevo vbios with higher software overclocking limits added to second post. I don't know whether this mod works stable with the Clevo vbios... it seems to work nicely with the MSI.Oh and for what it's worth, lspci returns "NVIDIA Corporation Device 0fd4 (rev a1)" on my G55vw, which is the same being returned on a G75vwYeah, that's the 660m device ID. 1 Quote Link to comment Share on other sites More sharing options...
DarkSkies Posted August 7, 2012 Share Posted August 7, 2012 Second post ('Test versions') updated with three new Dell 680m mods. If you decide to flash any of it, please let me know how it performs, else I can't improve them. I don't have a 680m myself.Excellent job. Can you tell me by how much the 'OV' bioses increase voltage? Quote Link to comment Share on other sites More sharing options...
svl7 Posted August 7, 2012 Author Share Posted August 7, 2012 0.0375v if I remember correctly. Not much. Quote Link to comment Share on other sites More sharing options...
Shipwreck79 Posted August 7, 2012 Share Posted August 7, 2012 @svl7: Yeah, I remember that 3DM scores peaked at +100/200 MHz with M17x R4 stock BIOS as well, so the throttle seems to be in effect. 1 Quote Link to comment Share on other sites More sharing options...
Tonrac Posted August 7, 2012 Share Posted August 7, 2012 Thanks SVL7i test quickly the bios mod based on clevo :The idle bug (caused by msi vbios) seem to disapear ... but i made some test and the card seem to throttle when i break the wall of 853 Mhz (3dmark11 score goes down)maybe a light overvolt could fix this i presume ...BTW good job, it help me determine that the idle bug is msi vbioses fault on P150HM/gtx680m combo. Quote Link to comment Share on other sites More sharing options...
svl7 Posted August 7, 2012 Author Share Posted August 7, 2012 Yeah, from previous tests with the Clevo vbios, with modified clocks, users reported similar issues as with the Dell vbios. 1 Quote Link to comment Share on other sites More sharing options...
svl7 Posted August 7, 2012 Author Share Posted August 7, 2012 Asus G55VW BIOS with unlocked software OC limits added to second post. Flash with the tools provided by Asus or your favorite BIOS flashing tools. 1 Quote Link to comment Share on other sites More sharing options...
Killerinstinct Posted August 7, 2012 Share Posted August 7, 2012 I have a slight question if you don't mind answering : do you mod the vbios by opening it up in assembly code or some other program? Quote Link to comment Share on other sites More sharing options...
svl7 Posted August 8, 2012 Author Share Posted August 8, 2012 That's easily answered if you look at it this way: How much of Nvidias current ISA is known? 1 Quote Link to comment Share on other sites More sharing options...
johnksss Posted August 8, 2012 Share Posted August 8, 2012 was wondering if you were really going to answer that. Quote Link to comment Share on other sites More sharing options...
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