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8400GS based GPU OC'd by 67%+

post #1 of 7
Thread Starter 
My laptop is a M4300 Dell Precision.
It has a Core 2 Duo T7700 2.5GHz CPU.
The RAM is a DDR2 667MHz.

Now to the bottleneck of this system, which I want to play less demanding games with.

The graphics card is an nVidia NVS 135M. It has very poor stock speeds: 400MHz core and 400MHz memory. The Vram is 128MB.

I have been successful in overclocking it to 650MHz core and 504MHz memory. The temperature rises to a maximum of 76C@80% fans. It is stable after two weeks of stressing with various benchmarks and World of Tanks (Pushes it to 97% for hours wink.gif ) The tool I used was ASUS GPU tweak.

I used it instead of MSI afterburner because the sliders go up to 800MHz core instead of stopping at 512MHz on MSI.

I have experimented (briefly) the maximal settings at stock volts. The 800MHz core clock caused a red screen crash that needed a forced shutdown. The 800MHz GPU memory clock immediately caused the computer to reboot. I think that means they are unstable clocks XD


Three questions:
-Should I push this card further? A constant 74-76C seems unhealthy, higher temperatures seem even worse ( I could push the fan up but...) If anyone has experience OC'ing 8400GS's, can you tell me max stable clocks?

-Should I increase the GPU card voltage, and when? Currently it is not an available feature on ASUS GPU Tweak, but MSI and the Rivaturner it is based on have this option. Although...I don't know how to use rivaturner frown.gif

-Will the RAM speed become a limit I have to abide to? Should I set my clocks to synchronize with the CPU or RAM?

Thank you again, OCN community (I mean thetwo guys who have answered my threads so far tongue.gif)!
post #2 of 7
I wouldn't push my luck any further to be honest.
Increasing card votlage may only result in broken parts.
Go ahead if you don't give a single crap about that laptop and it's for fun, otherwise I would try to see at which point you can undervolt that card.
Will the speed become a limit ?

I'll be honest here, the whole laptop is basicly a massive amount of bottleneck, it's pretty hard to say what will bottleneck what.
The CPU/RAM don't need to be matched to the GPU/Vram.
Each card has it's own speed, just like every CPU/RAM has their own too.
post #3 of 7
Thread Starter 
I just tried moving the memory to 600MHz.
Crash lol

No, I want to make the maximal stable overclock.

Why would I want to underclock the card? Doesn't that make it less stable for these speeds? eh-smiley.gif
Speed a limit. Yes, my current GPU is holding the CPU down.

PS: If everything's a bottleneck, there's no bottleneck!
post #4 of 7
go from reference, run furmark, and slowly boost core speeds till it becomes unstable 25mhz at a time

Then do the same with memory
post #5 of 7
Quote:
Originally Posted by krakonfive View Post

I just tried moving the memory to 600MHz.
Crash lol

No, I want to make the maximal stable overclock.

Why would I want to underclock the card? Doesn't that make it less stable for these speeds? eh-smiley.gif
Speed a limit. Yes, my current GPU is holding the CPU down.

As previously stated, you're more than likely to break it if you overvolt and overclock it any higher, especially given the cooling capacity of the laptop.

Abs.exe said you should try to undervolt, not underclock, I.E. You have found your maximum stable clocks at the maximum voltage the card is currently supplying, try to lower the voltages whilst keeping the clocks as close to your max stable, lowering the temps and prolonging the lifespan.
Remember, in such a confined space as a laptop, the heat output of the GPU is affecting its surrounding components much moreso than a desktop, your HDD, CPU, Battery and everything will be hitting a much higher temperature.

Your GPU may be using GDDR2, in which case I wouldn't worry about the Memory frequency all too much anyway, as Core Clock/Shaders will effect your gaming much moreso than the small bandwidth increase of it and those type of games, coupled with your actual VRAM amount.
GDDR2 doesn't really OC that well by all accounts, using my old 8600GT as an example, stock clocks were 540 Core, 1140 Shader and 600 Memory.
Max stable OC was 750c, 1600s, and 650m, though I ended up leaving the memory at stock for stability.

Also, how much actual system RAM are you running? You stated you have 667MHz DDR2, but not how much. 2GB, 3GB, 4GB?
If you're only running 2GB on XP Pro, you may feel better system performance (dependant on game type and running services) by adding more RAM, and maybe even updraging to a 64bit OS to utilise the full 4GB or more. However even with a 32bit OS, increasing from 2 to 4GB will still increase overall performance and feel of the system.

Personally I'd be happy with a 600Mhz OC on the core and trying to undervolt as much as possible, there's only so many games you can play on that machine anyway, so you may aswell weigh in the actual performance increase/temperature of overclocking it and undervolt to reduce heat output. smile.gif
 
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CPUMotherboardGraphicsRAM
l Intel® Core™ i7-5820K l l MSI X99A SLI Krait Edition l l MSI GTX 980Ti Gaming 6G l l Corsair Dominator® Platinum (4x4GB) DDR4 3Ghz l 
Hard DriveHard DriveHard DriveHard Drive
| Samsung PM951 M.2 PCI-e NVMe 512GB | l Samsung 840 Evo 500GB l l Toshiba X300 4TB 128MB Cache l l Toshiba MD04ACA400 4TB l 
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l Toshiba DT01ACA300 3TB (x3) l l Samsung F3 1TB l l Pioneer BDR-209EBK l l NZXT Kraken X61 (2x Noctua NF-A14-2000-IP67) l 
CoolingOSMonitorMonitor
l Phobya MaxGuide 6 Controller l l Windows 7 x64 Customised. l l Acer Predator XB240H 144Hz G-Sync l l LG M2380D 1080p l  
KeyboardPowerCaseMouse
l Logitech G19s l  l EVGA SuperNOVA G2 850w l l CM Storm Stryker™ l  l Logitech G502 l  
Mouse PadAudioAudioAudio
l Razer Vespula l l Logitech Z506 5.1 l l Steelseries Siberia V2 MSI Gaming Edition l l Creative Fatal1ty HS-800 V2 l 
CPUMotherboardGraphicsRAM
l Phenom II x4 960T BE (@x6 3838MHz) l l Asus Crosshair IV Formula l  l MSI GTX 570 PE/OC l l 8GB Crucial Ballistix Tactical 1600MHz (@170... 
Hard DriveHard DriveHard DriveHard Drive
l Samsung 840 Evo 500GB l l Samsung F3 1TB X2 l l Maxtor DiamondMax 750GB 32MB l l Samsung F4 2TB l 
Hard DriveOptical DriveCoolingCooling
l Toshiba DT01ACA300 x2 l l Pioneer BDR-209EBK l l Scythe Kama Angle Rev.B (With Scythe GT 1850R... l 4x120mm, 2x140mm Case Fans (CM + Scythe) l 
CoolingOSMonitorKeyboard
l Aerocool Cooltouch R l l Windows 7 x64 nVidia Ed. l l LG M2380D 1080p l l Logitech G15 l 
PowerCaseMouseMouse Pad
l XFX Pro 650W Core Ed. l l CM Storm Scout™ l l Logitech G502 l l Steelseries QcK l 
AudioAudio
l Creative Fatal1ty HS-800 V2 l l Logitech LS21 l 
CPUMotherboardGraphicsRAM
G3258 @4Ghz MSI Z97I Gaming AC MSI GTX 460 Crucial Ballistix Sport 1600MHz 8GB 
Hard DriveHard DriveOptical DriveCooling
Samsung 840 Evo 128GB Toshiba DT01ACA100 1TB Optiarc 7170S Corsair H60 
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Exia R2
(22 items)
 
Unicorn SD
(13 items)
 
CPUMotherboardGraphicsRAM
l Intel® Core™ i7-5820K l l MSI X99A SLI Krait Edition l l MSI GTX 980Ti Gaming 6G l l Corsair Dominator® Platinum (4x4GB) DDR4 3Ghz l 
Hard DriveHard DriveHard DriveHard Drive
| Samsung PM951 M.2 PCI-e NVMe 512GB | l Samsung 840 Evo 500GB l l Toshiba X300 4TB 128MB Cache l l Toshiba MD04ACA400 4TB l 
Hard DriveHard DriveOptical DriveCooling
l Toshiba DT01ACA300 3TB (x3) l l Samsung F3 1TB l l Pioneer BDR-209EBK l l NZXT Kraken X61 (2x Noctua NF-A14-2000-IP67) l 
CoolingOSMonitorMonitor
l Phobya MaxGuide 6 Controller l l Windows 7 x64 Customised. l l Acer Predator XB240H 144Hz G-Sync l l LG M2380D 1080p l  
KeyboardPowerCaseMouse
l Logitech G19s l  l EVGA SuperNOVA G2 850w l l CM Storm Stryker™ l  l Logitech G502 l  
Mouse PadAudioAudioAudio
l Razer Vespula l l Logitech Z506 5.1 l l Steelseries Siberia V2 MSI Gaming Edition l l Creative Fatal1ty HS-800 V2 l 
CPUMotherboardGraphicsRAM
l Phenom II x4 960T BE (@x6 3838MHz) l l Asus Crosshair IV Formula l  l MSI GTX 570 PE/OC l l 8GB Crucial Ballistix Tactical 1600MHz (@170... 
Hard DriveHard DriveHard DriveHard Drive
l Samsung 840 Evo 500GB l l Samsung F3 1TB X2 l l Maxtor DiamondMax 750GB 32MB l l Samsung F4 2TB l 
Hard DriveOptical DriveCoolingCooling
l Toshiba DT01ACA300 x2 l l Pioneer BDR-209EBK l l Scythe Kama Angle Rev.B (With Scythe GT 1850R... l 4x120mm, 2x140mm Case Fans (CM + Scythe) l 
CoolingOSMonitorKeyboard
l Aerocool Cooltouch R l l Windows 7 x64 nVidia Ed. l l LG M2380D 1080p l l Logitech G15 l 
PowerCaseMouseMouse Pad
l XFX Pro 650W Core Ed. l l CM Storm Scout™ l l Logitech G502 l l Steelseries QcK l 
AudioAudio
l Creative Fatal1ty HS-800 V2 l l Logitech LS21 l 
CPUMotherboardGraphicsRAM
G3258 @4Ghz MSI Z97I Gaming AC MSI GTX 460 Crucial Ballistix Sport 1600MHz 8GB 
Hard DriveHard DriveOptical DriveCooling
Samsung 840 Evo 128GB Toshiba DT01ACA100 1TB Optiarc 7170S Corsair H60 
OSKeyboardPowerCase
Windows 7 x64 Logitech K400 Wireless Touch Cooler Master Silent Pro M2 520w Modular Cooler Master Elite 130 
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Logitech M187 
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post #6 of 7
Thread Starter 
Quote:
Originally Posted by EvoBeardy View Post

As previously stated, you're more than likely to break it if you overvolt and overclock it any higher, especially given the cooling capacity of the laptop.
Abs.exe said you should try to undervolt, not underclock, I.E. You have found your maximum stable clocks at the maximum voltage the card is currently supplying, try to lower the voltages whilst keeping the clocks as close to your max stable, lowering the temps and prolonging the lifespan.
Remember, in such a confined space as a laptop, the heat output of the GPU is affecting its surrounding components much moreso than a desktop, your HDD, CPU, Battery and everything will be hitting a much higher temperature.
Your GPU may be using GDDR2, in which case I wouldn't worry about the Memory frequency all too much anyway, as Core Clock/Shaders will effect your gaming much moreso than the small bandwidth increase of it and those type of games, coupled with your actual VRAM amount.
GDDR2 doesn't really OC that well by all accounts, using my old 8600GT as an example, stock clocks were 540 Core, 1140 Shader and 600 Memory.
Max stable OC was 750c, 1600s, and 650m, though I ended up leaving the memory at stock for stability.
Also, how much actual system RAM are you running? You stated you have 667MHz DDR2, but not how much. 2GB, 3GB, 4GB?
If you're only running 2GB on XP Pro, you may feel better system performance (dependant on game type and running services) by adding more RAM, and maybe even updraging to a 64bit OS to utilise the full 4GB or more. However even with a 32bit OS, increasing from 2 to 4GB will still increase overall performance and feel of the system.
Personally I'd be happy with a 600Mhz OC on the core and trying to undervolt as much as possible, there's only so many games you can play on that machine anyway, so you may aswell weigh in the actual performance increase/temperature of overclocking it and undervolt to reduce heat output. smile.gif

Damn there's no select best answer option.

I have taken your advice and reduced memory clocks to the stock 400MHz. I have given up trying to find a stable 700MHz, so I'll keep 675MHz for now. I've also turned off Optimized Sampling to reduce texture flicker.

The RAM capacity is 3GB. It originally had 2GB but I asked the vendor to add another 1GB.
The only problem is, at startup I'm using 1GB, when I play a game I us up 2GB (67% on the meter) but however much videos or chrome tabs I add on top of that, the RAM usage never increases. How can I be sure that my computer is using that extra 1GB memory stick?

I have a 32bit Windows 7.

As for undervolting, it would be as difficult as overvolting. I have to unlock the voltage control for my GPU for both, and it is locked at this moment.

PS: Heat levels are stable. An 80% fan lets the GPU temp up to 78C and the CPU at 67-70C. A 100% fan gets the temps to 74-76C GPU and 65C CPU.
When the map is initially loading (30 secs of zero GPU load) the GPU temp drops to 67C.
post #7 of 7
Thread Starter 
I've made Imglidinhere mad so all answers go to http://www.overclock.net/t/1316946/adventures-in-overclocking/10.
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