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Newbie to Overclocking...Please help. Built stable 780i SLI system, stock settings.

post #1 of 12
Thread Starter 
Can anyone please take a look at my system specs in my sig, and the link below showing the temperature and system settings.


Snapshot of CoreTemp, CPU-ID, and SpeedFan:
http://filebox.vt.edu/users/ewwhite/website/Specs.bmp

I have an inkling how to overclock, but I have little tolerance for instability. Can someone please explain in basic procedural terms how to go about finding a powerful but very very stable overclock for my system?

From what I understand, I need to change the BIOS settings in my 780I SLI BIOS (which is very difficult to understand). I don't understand the ratio between the CPU clock and multiplier versus the RAM speed. I realize the ratio is important to stability. Most importantly, I bought 1066 MHz RAM, but my BIOS scales it down to 800 MHz by default.

From what I understand, I need to pick these ideal BIOS settings, then do a stress test for several hours to make sure there are no data processing errors.

Can anyone please clear up this confusing process? I have done a lot of research, but I am having a hard time making it practical to my system.

KADAMONY
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8400 Wolfdale 3.0GHz EVGA nForce 780i SLI Geforce 8800GT 512MB 4GB Crucial Ballistix DDR2-1066 
Hard DriveOptical DriveOSMonitor
2x 250GB SATA3.0 DVD+-RW/CDRW Windows XP 32bit 1080p Sony BRAVIA LCD HDTV 
PowerCase
Antec TruePower TRIO 650W Ultra m998 ULT40069 Mid-Tower ATX Case 
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KADAMONY
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CPUMotherboardGraphicsRAM
E8400 Wolfdale 3.0GHz EVGA nForce 780i SLI Geforce 8800GT 512MB 4GB Crucial Ballistix DDR2-1066 
Hard DriveOptical DriveOSMonitor
2x 250GB SATA3.0 DVD+-RW/CDRW Windows XP 32bit 1080p Sony BRAVIA LCD HDTV 
PowerCase
Antec TruePower TRIO 650W Ultra m998 ULT40069 Mid-Tower ATX Case 
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post #2 of 12
http://www.overclock.net/overclock.p...king-guide.htm read up buddy! read a bunch of guides and soak as much up as you can. the more u know the better off you'll be. and when you get to overclocking do one thing at a time. unlink your ram and find a stable clock for your cpu before going on and i found that upping the fsb voltage can really stabalize an oc. just make sure you don't overvolt it so do your google homework and find out the max voltage it can handle. for cpu info i just recently was introduced to this dandy website http://users.erols.com/chare/elec.htm#intel your cpus there and tells the max voltage and temps so that you don't fry it
    
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Q6600 G0 @ 3.5ghz xfx nforce 680i lt sli 8800gts 640mb 580mhz core 4x1gb Corsair XMS2 DHX 
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36gb raptor, 2x500gb all sata vista ultimate x64 2x p.o.s. crt ultra xfinity 600w 
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36gb raptor, 2x500gb all sata vista ultimate x64 2x p.o.s. crt ultra xfinity 600w 
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post #3 of 12
Thread Starter 
Not to be ungrateful, but that guide was written 4 years ago and I was hoping someone could give me less theoretical and more practical direction. I have read a lot of guides, but I am becoming frustrated with lack of applicability to my system.

Just an FYI so you know what technical level I am at: I did weeks of research to build this computer, reading reviews on everything down to the thermal paste for benchmark comparisons and compatibility. I have a B.S. Computer Science, A+ certification, and run an IT helpdesk for the military. So I am willing to crunch the numbers with anyone who would be so kind as to direct me.

I understand the basic theory but I need *examples* on how to apply it. I'm sure tons of people use Phoenix/780i SLI BIOS and I am hoping someone can clear up how to use it in the overclocking process. There must be a good resource out there that has step by step directions.
KADAMONY
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8400 Wolfdale 3.0GHz EVGA nForce 780i SLI Geforce 8800GT 512MB 4GB Crucial Ballistix DDR2-1066 
Hard DriveOptical DriveOSMonitor
2x 250GB SATA3.0 DVD+-RW/CDRW Windows XP 32bit 1080p Sony BRAVIA LCD HDTV 
PowerCase
Antec TruePower TRIO 650W Ultra m998 ULT40069 Mid-Tower ATX Case 
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KADAMONY
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8400 Wolfdale 3.0GHz EVGA nForce 780i SLI Geforce 8800GT 512MB 4GB Crucial Ballistix DDR2-1066 
Hard DriveOptical DriveOSMonitor
2x 250GB SATA3.0 DVD+-RW/CDRW Windows XP 32bit 1080p Sony BRAVIA LCD HDTV 
PowerCase
Antec TruePower TRIO 650W Ultra m998 ULT40069 Mid-Tower ATX Case 
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post #4 of 12
this guys has almost he exact same rig and was helped by someone who has already overclocked almost the same rig. you could read through that as a guide then ask your questions here. we could walk you through it but with that you can see the guesstimated outcome with the given numbers before you even do it. http://evga.com/forums/tm.asp?m=275684&mpage=1&key=
    
CPUMotherboardGraphicsRAM
Q6600 G0 @ 3.5ghz xfx nforce 680i lt sli 8800gts 640mb 580mhz core 4x1gb Corsair XMS2 DHX 
Hard DriveOSMonitorPower
36gb raptor, 2x500gb all sata vista ultimate x64 2x p.o.s. crt ultra xfinity 600w 
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Tagan Aplus CS-Monolith Twin 250mm logitech mx400 cheap thin fiber fabric 
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CPUMotherboardGraphicsRAM
Q6600 G0 @ 3.5ghz xfx nforce 680i lt sli 8800gts 640mb 580mhz core 4x1gb Corsair XMS2 DHX 
Hard DriveOSMonitorPower
36gb raptor, 2x500gb all sata vista ultimate x64 2x p.o.s. crt ultra xfinity 600w 
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Tagan Aplus CS-Monolith Twin 250mm logitech mx400 cheap thin fiber fabric 
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post #5 of 12
Thread Starter 
Thank you! That is exactly what I was looking for. I probably could have searched for that but I had done that a month ago and ended up rebuilding my system. Little did I know this post comes up just a couple weeks ago. Rate up!

I will post the results after I give this a shot.
KADAMONY
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8400 Wolfdale 3.0GHz EVGA nForce 780i SLI Geforce 8800GT 512MB 4GB Crucial Ballistix DDR2-1066 
Hard DriveOptical DriveOSMonitor
2x 250GB SATA3.0 DVD+-RW/CDRW Windows XP 32bit 1080p Sony BRAVIA LCD HDTV 
PowerCase
Antec TruePower TRIO 650W Ultra m998 ULT40069 Mid-Tower ATX Case 
  hide details  
Reply
KADAMONY
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8400 Wolfdale 3.0GHz EVGA nForce 780i SLI Geforce 8800GT 512MB 4GB Crucial Ballistix DDR2-1066 
Hard DriveOptical DriveOSMonitor
2x 250GB SATA3.0 DVD+-RW/CDRW Windows XP 32bit 1080p Sony BRAVIA LCD HDTV 
PowerCase
Antec TruePower TRIO 650W Ultra m998 ULT40069 Mid-Tower ATX Case 
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post #6 of 12
Thread Starter 
Ok, so from the defaults in the BIOS, I disabled Spread Spectrum settings (CPU, HT, PCIe, SATA) in system clocks, then in FSB Memory & Config menu, I 'Linked' the memory, put 'Memory Ratio' on 'Sync Mode', and entered 1600 for the FSB, yielding a 3.6 GHz processor speed, and 800 MHz RAM (even though I have 1066 RAM). I set VCore for the CPU to 1.35.

The result is a VERY HOT CPU... Why is it 45C on idle and 57C on load?? And core temp shows 57 idle and 67 load... I have a great heatsink that I've mounted very carefully and used a small amount of thermal paste. I just don't get it... it's great this is stable, but why so hot?

A little info about my cooling, I have 1 large intake fan and 1 large exhaust fan on the Ultra m998 Case. The XIGMATEK S1283 CPU Cooler is installed to exhaust the air directly out the case exhaust fan. There seems to be very little more I can do with air cooling.

KADAMONY
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8400 Wolfdale 3.0GHz EVGA nForce 780i SLI Geforce 8800GT 512MB 4GB Crucial Ballistix DDR2-1066 
Hard DriveOptical DriveOSMonitor
2x 250GB SATA3.0 DVD+-RW/CDRW Windows XP 32bit 1080p Sony BRAVIA LCD HDTV 
PowerCase
Antec TruePower TRIO 650W Ultra m998 ULT40069 Mid-Tower ATX Case 
  hide details  
Reply
KADAMONY
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8400 Wolfdale 3.0GHz EVGA nForce 780i SLI Geforce 8800GT 512MB 4GB Crucial Ballistix DDR2-1066 
Hard DriveOptical DriveOSMonitor
2x 250GB SATA3.0 DVD+-RW/CDRW Windows XP 32bit 1080p Sony BRAVIA LCD HDTV 
PowerCase
Antec TruePower TRIO 650W Ultra m998 ULT40069 Mid-Tower ATX Case 
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post #7 of 12
when you up the voltage the temps go up almost exponentially. especially under load you'll notice that the temps get ahead of the hsf. thats completely normal. your cpus max temp is 72.4C (http://users.erols.com/chare/elec.htm#intel) so as long as you can keep it under 70 your probably fine. i don't let mine get above 65 even though it can handle 71 just for safetys sake. on that second pic your cpu loads at 50% so it might get hotter than that. how long did you stress to make sure its stable? cause i had mine rock solid at 3.5ghz by running orthos on all cores for 18 1/2hrs then i started to do basic things and the bloody thing crashed lol it'll take a while to find a 100% stable clock maybe, i ran my system for 2 days trying to find the lowest stable settings (i had class and sleep during which time it crashed so if i was sitting here watching it then it would have taken half that time)
    
CPUMotherboardGraphicsRAM
Q6600 G0 @ 3.5ghz xfx nforce 680i lt sli 8800gts 640mb 580mhz core 4x1gb Corsair XMS2 DHX 
Hard DriveOSMonitorPower
36gb raptor, 2x500gb all sata vista ultimate x64 2x p.o.s. crt ultra xfinity 600w 
CaseMouseMouse Pad
Tagan Aplus CS-Monolith Twin 250mm logitech mx400 cheap thin fiber fabric 
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CPUMotherboardGraphicsRAM
Q6600 G0 @ 3.5ghz xfx nforce 680i lt sli 8800gts 640mb 580mhz core 4x1gb Corsair XMS2 DHX 
Hard DriveOSMonitorPower
36gb raptor, 2x500gb all sata vista ultimate x64 2x p.o.s. crt ultra xfinity 600w 
CaseMouseMouse Pad
Tagan Aplus CS-Monolith Twin 250mm logitech mx400 cheap thin fiber fabric 
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post #8 of 12
Thread Starter 
Hmm.... Supposing that temperature is normal, which one do I go by, Core Temp or Speed Fan? I only ran Prime 95 for about 1 minute before taking the screenshot. I was picturing a meltdown. If the real temp is low to mid 60s I don't know if I'd keep it there, but if its mid 50s I might.

When I ran Prime 95 it instantly jumped 11-12 degrees celcius. It didn't seem like it would get much hotter if I waited longer. By saying it was stable I meant more that I could boot and everything. I was not about to leave it burning for 24 hours. Maybe I will now.

Another question, if I find a stable OC at 4.05GHz at the same voltage, the temp of the CPU would not change? In other words, will the CPU temperature only increase when the CPU core voltage does in an overclock?
KADAMONY
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8400 Wolfdale 3.0GHz EVGA nForce 780i SLI Geforce 8800GT 512MB 4GB Crucial Ballistix DDR2-1066 
Hard DriveOptical DriveOSMonitor
2x 250GB SATA3.0 DVD+-RW/CDRW Windows XP 32bit 1080p Sony BRAVIA LCD HDTV 
PowerCase
Antec TruePower TRIO 650W Ultra m998 ULT40069 Mid-Tower ATX Case 
  hide details  
Reply
KADAMONY
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8400 Wolfdale 3.0GHz EVGA nForce 780i SLI Geforce 8800GT 512MB 4GB Crucial Ballistix DDR2-1066 
Hard DriveOptical DriveOSMonitor
2x 250GB SATA3.0 DVD+-RW/CDRW Windows XP 32bit 1080p Sony BRAVIA LCD HDTV 
PowerCase
Antec TruePower TRIO 650W Ultra m998 ULT40069 Mid-Tower ATX Case 
  hide details  
Reply
post #9 of 12
lol wo that temp seems way to high for a TRUE and a low voltage dual core.
post #10 of 12
Can you tell me if a E8400 can reach 4.0 on stock voltage with a good heatsink ?
     
CPUGraphicsRAMOS
i7 4710q Nvidia GT840M 8GB DDR-3 1600 Windows 8.1 
Monitor
17" 1600x900 
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Intel Core i7 930 D0 ASUS P6T-SE Sapphire 5750 1Gig @ 820/1275 Asus 6770 DirectCU 1Gig @ 908/1150 
RAMHard DriveOptical DriveOS
Kingston Value 18 Gigs 1086mhz CL8 Western Digital 640GB Black LG GH24LS50 24x Windows 7 Home Premium 64 
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ASUS VW266H 26" 1920x1200 Antec True Power New 750 watts Thermaltake V3 Black Edition Logitech G5 V2 
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CPUGraphicsRAMOS
i7 4710q Nvidia GT840M 8GB DDR-3 1600 Windows 8.1 
Monitor
17" 1600x900 
CPUMotherboardGraphicsGraphics
Intel Core i7 930 D0 ASUS P6T-SE Sapphire 5750 1Gig @ 820/1275 Asus 6770 DirectCU 1Gig @ 908/1150 
RAMHard DriveOptical DriveOS
Kingston Value 18 Gigs 1086mhz CL8 Western Digital 640GB Black LG GH24LS50 24x Windows 7 Home Premium 64 
MonitorPowerCaseMouse
ASUS VW266H 26" 1920x1200 Antec True Power New 750 watts Thermaltake V3 Black Edition Logitech G5 V2 
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