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How changing psu affected my 460 oc

post #1 of 6
Thread Starter 
Hi guys,
I had a raptoxx abp 550 watt. It had 42 amps on +12v rails, which is more than enough. Now 550w with my sig rig is enough and not pushing it, but the psu itself is kinda old. Now my psu got burned because of a storm that hit the city of beirut. Everytime i see lightning the pc restarts...In anycase now i have a gigabyte 720w psu which has like 56amp on +12v rails.

Oc wise, old psu with stock volts maxed out at 860 mhz. This bad boy i am 885mhz stable. Furmark is my test i leave it for 5-10min, max temp i got was 62 with fan auto. Not gona post pics maybe later, sorry very slow internet .
I know furmark is heavy, but i will loop crysis and badcompany2 later. Ill toss some dirt2 and re5 in the mix.
Also with voltage to 100mv i was able to hit 930 stable with old psu...so wish me luck.
I will update as i progress.
Update1: 900mhz @ 1.057v stable.
Update 2: moving the slider to max on all three voltages i was able to hit 970 core and 2100 (4200 effective).
Edited by MoBeeJ - 12/21/10 at 11:45am
The bottleneck
(13 items)
 
  
CPUMotherboardGraphicsRAM
E5400 @ 3.5 stock volts Msi g31 (no voltage control) Gtx 460 Hawk (Talons attack) 2g Ddr2 @ 651 
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The bottleneck
(13 items)
 
  
CPUMotherboardGraphicsRAM
E5400 @ 3.5 stock volts Msi g31 (no voltage control) Gtx 460 Hawk (Talons attack) 2g Ddr2 @ 651 
Hard DriveOS
250 WD Win 7 64-bit Ultimate 
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post #2 of 6
Veeery good! I didn't know the PSU affects the GPU OC, thanks for sharing those results.40Mhz+ out of nothing is a lot
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My Rig
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Ex-wife's Rig
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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 
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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 
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post #3 of 6
Inferior or damaged PSUs can deliver inconsistent power flow. PSUs starting to fail may show only a small decrease in performance in the early stages.
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post #4 of 6
Quote:
Originally Posted by MoBeeJ View Post
Hi guys,
I had a raptoxx abp 550 watt. It had 42 amps on +12v rails, which is more than enough. Now 550w with my sig rig is enough and not pushing it, but the psu itself is kinda old. Now my psu got burned because of a storm that hit the city of beirut. Everytime i see lightning the pc restarts...In anycase now i have a gigabyte 720w psu which has like 56amp on +12v rails.

Oc wise, old psu with stock volts maxed out at 860 mhz. This bad boy i am 885mhz stable. Furmark is my test i leave it for 5-10min, max temp i got was 62 with fan auto. Not gona post pics maybe later, sorry very slow internet .
I know furmark is heavy, but i will loop crysis and badcompany2 later. Ill toss some dirt2 and re5 in the mix.
Also with voltage to 100mv i was able to hit 930 stable with old psu...so wish me luck.
I will update as i progress.
Update1: 900mhz @ 1.057v stable.
Another factor to consider is the true efficiency of the power supply. If its 66 percent or less you can just take the advertised amps of the 12 volt rail and cut it in half and that is what you are really getting.

You are only using 2 GB of memory with a 64 bit operating system? That is a problem right there.

I do not trust that brand. I did a search and found no unbiased reviews from the sites that normally review power supplies. The raptoxx site listed reviews but they were not from the primary sources of such information that I recognize. Some of them seemed spurious.
Edited by Majestic_Lizard - 12/21/10 at 12:04am
    
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post #5 of 6
Thread Starter 
Guys a question, my temps are real good (gpu core) but i know i am hitting the limit cause of my vrm and mem. Sadly they are both cooled ONLY by the airflow provided by the fans of the card. The mem chips get REALLY hot to even touch (at stock). I read/heard alot of ppl had great results after cooling their mem chips. Is there a way to do so while keeping the same cooler (twin frozer). I might have an idea but i want some input...
Bottom line: Is there a possibility that cooling the memchips and vrm yield better results or temps?
The bottleneck
(13 items)
 
  
CPUMotherboardGraphicsRAM
E5400 @ 3.5 stock volts Msi g31 (no voltage control) Gtx 460 Hawk (Talons attack) 2g Ddr2 @ 651 
Hard DriveOS
250 WD Win 7 64-bit Ultimate 
  hide details  
Reply
The bottleneck
(13 items)
 
  
CPUMotherboardGraphicsRAM
E5400 @ 3.5 stock volts Msi g31 (no voltage control) Gtx 460 Hawk (Talons attack) 2g Ddr2 @ 651 
Hard DriveOS
250 WD Win 7 64-bit Ultimate 
  hide details  
Reply
post #6 of 6
Quote:
Originally Posted by MoBeeJ View Post
Guys a question, my temps are real good (gpu core) but i know i am hitting the limit cause of my vrm and mem. Sadly they are both cooled ONLY by the airflow provided by the fans of the card. The mem chips get REALLY hot to even touch (at stock). I read/heard alot of ppl had great results after cooling their mem chips. Is there a way to do so while keeping the same cooler (twin frozer). I might have an idea but i want some input...
Bottom line: Is there a possibility that cooling the memchips and vrm yield better results or temps?
Are you really only using 2 GB of memory or is that a typo in your system specs? The way windows 7 64 configures memory, a 1 GB card is going to cause a serious deficit in resources. That will be the true bottleneck.
    
CPUMotherboardGraphicsRAM
Zilog Z80 @ 4MHz Coleco Adam Motherboard 16 KB / 16 colors / 32 sprites (on-board) 64K 
Hard DriveOptical DriveOSMonitor
Coleco Digital Data Cassette Coleco Digital Data Cassette CP/M, BASIC (on tape) CRT Television 
PowerCase
Built into printer Plays All Coleco Cartridges 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
Zilog Z80 @ 4MHz Coleco Adam Motherboard 16 KB / 16 colors / 32 sprites (on-board) 64K 
Hard DriveOptical DriveOSMonitor
Coleco Digital Data Cassette Coleco Digital Data Cassette CP/M, BASIC (on tape) CRT Television 
PowerCase
Built into printer Plays All Coleco Cartridges 
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