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7 Posts
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6306
October 30th, 2011 11:00
studio 1558 various issues
Hi folks, I have two main issues with main laptop:
1) I've successfully installed the latest video driver released by dell for my ati 5470 (code R257949). Unfrotunately after the installation some resolutions (like 1280x720) are no longer available. I'm sure that this problem depends on the new driver since, if I roll back to the previous one, the missing resolutions reappear.
2)The second issue is overheating. I've been experiencing this issue since the installation of Ati 11.6 driver (at first I was used to installing ati drivers instead of dell's ones). I thought that overheating would disappear with the new drivers but that didn't happen. When I'm just working with the computer or just browsing temperatures are normal (floating between 50-58), but when the gpu is heavily on load (while gaming for example) they easily reach the threshold limit. Before changing the thermal past or things like that I wanted to understand whether this may depend on a software issue rather than hardware one.
Thank you for your attention :D
TheBigSpringbok
2 Posts
0
November 2nd, 2011 18:00
Hi mate,
I am experiencing exactly the same issues as you. Have you managed to fix?
If so, could you help me out. Anyone else out there having these issues?
Thanks in advance.
FairFriend
7 Posts
0
November 5th, 2011 08:00
Hi my friend, I have a good news for you: I have resolved both the problems! Here it is:
1) The driver issue was very easy to fix. I've found out that I was unable to install ATI drivers because of my antivirus. I used Comodo, therefore I switched to Microsoft Security Essentials. Then I tried to install the lates ATI driver from their website (11.9) and everything worked fine (obviously no resolution problem :D).
2) The overheating issue is a little bit tricky. Fortunately there are two ways to solve it. First of all you must know that our GPU featuers the "powerplay" technology that allows it to underclock the core and the memory under certain circumstances (like, for example, when you don't need power or your studio is too hot). In order to prevent downclock while playing you can disable powerplay through Catalyst Control Center (just click with the right button on the desktop and navigate through the various options). If you disable powerplay you will not experience throttling (and therefore bad fps) anymore. Unfortunately the GPU voltages will be locked; therefore the GPU may become hot even if your are not playing.
You can prevent this if you decide to follow the second path, that is modding the vbios. Modding the vbios is a little bit difficult and without any doubt has its own risks (don't do that if your studio is under warranty). Carefully read the following topic
http://forum.notebookreview.com/dell-xps-studio-xps/521990-bios-modding-gpu-oc-fun-profit-72.html
and especially post number 719 in order to understand how to mod the vbios.
The important thing in order to prevent throttling is to modify the powerplay clock. The powerplay system has several different clocks for different situation: lower the clocks, lower the permonce. By modding the vbios your objective is to change the cloks that are used when your gpu is overheating:
when you will open RBE you will have several clocks speed and voltages: those ones that you want to change are: core = 450; memory =500; voltages=0.95
You must change only these to core=750; memory=800; voltages=1.12
If you have problems don't hesitate to post here; I may have also written the wrong clocks: if you don't find them in RBE just post those ones which are shown and I'll try to help you.
one more thing: MODDING THE BIOS IS VERY VERY DANGEROUS, YOU ARE WARNED
cheers:D!
TheBigSpringbok
2 Posts
1
November 5th, 2011 13:00
Thanks a lot mate. I will give it a go.
I know my way around PCs so will have a look at modding vBios.
Thanks again.