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Sempron 140 Overclock Graphics issue

post #1 of 5
Thread Starter 
Hi i just have quick question.
I am fairly new to overclocking.
I followed this a guide to overclocking my Sempron 140 (unlocking the second core) that worked very well.
It went from 2.7Ghz to 3.4Ghz.

But i have found that my graphics are having problems in some games specifically regarding water. For example in the Sims 3 the water causes extreme flicker and it seems trees and objects are displaced.

I have tried different configurations with this chip and my old Athlon 4000+ including not overclocking the sempron. All other configurations work fine.... but when the Sempron has the second core unlocked this effect occurs.

Am i missing something obvious?
Game PC
(13 items)
 
  
CPUMotherboardGraphicsRAM
Sempron 140 ASUS M4A785-M GeForce 9500 GT 4.5 GB 
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Game PC
(13 items)
 
  
CPUMotherboardGraphicsRAM
Sempron 140 ASUS M4A785-M GeForce 9500 GT 4.5 GB 
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Reply
post #2 of 5
what is your cpu voltage?
    
CPUMotherboardGraphicsRAM
AMD Phenom II x4 925 C2 2.8@3.7GHz NB 2.65GHz 1... Asrock 970 Extreme 4 UEFI Palit GTX 460 Sonic Platinum 840MHz Core/1055MH... 2x4GB Kingston HyperX 1600@1414MHz 7-7-7-21 1.65v 
Hard DriveOptical DriveCoolingOS
Seagate Barracuda 1TB 7200RPM 32MB Sata 3 6GB/s Sony Optiarc 5260s 24X DVD+/-RW Cooler Master Hyper TX3 / AMD Stock fan as VRM ... Windows 7 Ultimate x64 
MonitorPowerCase
Samsung SyncMaster S24B300HL 1920x1080 Cooler Master GX 750W Cooler Master Elite 430 Black 
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CPUMotherboardGraphicsRAM
AMD Phenom II x4 925 C2 2.8@3.7GHz NB 2.65GHz 1... Asrock 970 Extreme 4 UEFI Palit GTX 460 Sonic Platinum 840MHz Core/1055MH... 2x4GB Kingston HyperX 1600@1414MHz 7-7-7-21 1.65v 
Hard DriveOptical DriveCoolingOS
Seagate Barracuda 1TB 7200RPM 32MB Sata 3 6GB/s Sony Optiarc 5260s 24X DVD+/-RW Cooler Master Hyper TX3 / AMD Stock fan as VRM ... Windows 7 Ultimate x64 
MonitorPowerCase
Samsung SyncMaster S24B300HL 1920x1080 Cooler Master GX 750W Cooler Master Elite 430 Black 
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post #3 of 5
Quote:
Originally Posted by FentonAlpha View Post
Hi i just have quick question.
I am fairly new to overclocking.
I followed this a guide to overclocking my Sempron 140 (unlocking the second core) that worked very well.
It went from 2.7Ghz to 3.4Ghz.

But i have found that my graphics are having problems in some games specifically regarding water. For example in the Sims 3 the water causes extreme flicker and it seems trees and objects are displaced.

I have tried different configurations with this chip and my old Athlon 4000+ including not overclocking the sempron. All other configurations work fine.... but when the Sempron has the second core unlocked this effect occurs.

Am i missing something obvious?
Bad second core?
Try to run at stock freq with both cores.
You still get a dual core, so should be fine
My Rig
(14 items)
 
Ex-wife's Rig
(15 items)
 
 
CPUMotherboardGraphicsRAM
Core i5 4460 AsRock H81M-DG4 Sapphire Rx470 Platinum KVR 1600 16Gb 
Hard DriveHard DriveCoolingOS
2x Seagate 3Tb Samsung 850 EVO 120 Scythe Ninja 3 Rev.B Windows 10 Pro 
MonitorKeyboardPowerCase
Fujitsu Siemens A17-2A Logitech K280e SuperFlower SF-550K12XP Thermaltake Versa H25 
MouseAudio
Logitech G402 Sony MDR XD150 
CPUMotherboardGraphicsRAM
Athlon 750K 4.0Ghz AsRock FM2A75 Pro4+ Sapphire R9 270X Dual-X Kingston 2x4Gb 1600 
Hard DriveHard DriveOptical DriveCooling
Samsung 850 EVO 120  Western Digital 320Gb LiteON DVD-RW CoolerMaster Hyper Z600 
OSMonitorKeyboardPower
Windows 7 Pro x64 Toshiba 32" FullHD TV Logitech FSP Hexa 550 
CaseMouse
DeLUX Logitech 
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My Rig
(14 items)
 
Ex-wife's Rig
(15 items)
 
 
CPUMotherboardGraphicsRAM
Core i5 4460 AsRock H81M-DG4 Sapphire Rx470 Platinum KVR 1600 16Gb 
Hard DriveHard DriveCoolingOS
2x Seagate 3Tb Samsung 850 EVO 120 Scythe Ninja 3 Rev.B Windows 10 Pro 
MonitorKeyboardPowerCase
Fujitsu Siemens A17-2A Logitech K280e SuperFlower SF-550K12XP Thermaltake Versa H25 
MouseAudio
Logitech G402 Sony MDR XD150 
CPUMotherboardGraphicsRAM
Athlon 750K 4.0Ghz AsRock FM2A75 Pro4+ Sapphire R9 270X Dual-X Kingston 2x4Gb 1600 
Hard DriveHard DriveOptical DriveCooling
Samsung 850 EVO 120  Western Digital 320Gb LiteON DVD-RW CoolerMaster Hyper Z600 
OSMonitorKeyboardPower
Windows 7 Pro x64 Toshiba 32" FullHD TV Logitech FSP Hexa 550 
CaseMouse
DeLUX Logitech 
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Reply
post #4 of 5
Thread Starter 
Sorry, yeah even not overclocked with just second core unlocked it does it. So i guess it's a bad core then.

Can't remember the cpu voltage right now as the sempron is not installed but will post it later.
Game PC
(13 items)
 
  
CPUMotherboardGraphicsRAM
Sempron 140 ASUS M4A785-M GeForce 9500 GT 4.5 GB 
  hide details  
Reply
Game PC
(13 items)
 
  
CPUMotherboardGraphicsRAM
Sempron 140 ASUS M4A785-M GeForce 9500 GT 4.5 GB 
  hide details  
Reply
post #5 of 5
what heatsink are you using on it?
the stock one is too small to be unlocked and overclocked that much

use hwmonitor and watch the temps, 62c is too hot
try to keep it around 50c max
run prime95 for a 5-10min to get a high temp
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