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Finally overclocking my aged e8500!

post #1 of 11
Thread Starter 
So, after owning this pc for years and going through my fair share of financial hardships I've finally been able to to a couple upgrades that I think make me comfortable enough to start overclocking. I'll start by saying that I'm mainly looking to overclock because I use my computer for gaming all the time and I've heard nothing but awesomeness when it comes to oc'ing this sweet (albeit, old) c2d! After I have the cpu done, I'd like to start oc'ing the gpu as well. I think I'll probably end up skipping oc'ing the ram as I have yet to read anywhere that oc'd ddr3 would help a c2d at all.

Goal is 4.0Ghz 24/7 stable used mainly for gaming online/singleplayer. I do have the c0 revision but I keep reading that 4.2 is attainable and stable with air cooling so H100 cooling it should be no prob 4.0 right? We'll see...

EVGA nForce 790i Ultra SLI Motherboard (most recent BIOS update)
EVGA GTX 280 (01G-P3-1280 with most recent drivers)
CORSAIR Dominator Platinum 8GB (2 x 4GB) DDR3 1600 (PC3 12800) 8-8-8-24 1.5V Dual Channel Kit
Intel Core 2 Duo E8500 Wolfdale 3.16GHz LGA 775 65W 45nm
Thermaltake Sword M Case
CORSAIR H100 Liquid CPU Cooler
Thermaltake Toughpower 1200W Modular PSU
11 case fans (3 front/bottom intake, 4 side intake, 1 back exhaust, 3 top exhaust)

CPU-Z, prime95, 3dmark11, and coretemp all installed.

With tuniq tx4 freshly installed my stock clock is hitting 37c at idle and 54c with in-place large FFTs in prime. Room temp is 24c here in Colorado (just in case altitude could play a factor).
Before I even get on to oc'ing....is this a good starting temp? Seems a little high considering the air flow I have through the case and the ac vent I just installed underneath it to blow cold air directly into the bottom intake fans...



Door open only for picture's sake.

When I tried oc'ing a little earlier I got 4.0Ghz with 8 multiplier and 2000 fsb. CPU Core was at 1.41875 which was the lowest I could run the voltage while still allowing the pc to boot. I would hit 70c with in-place large FFTs in prime, which is 10 degrees higher than I'd like to be. HELP!
post #2 of 11
temps seem good. It really shouldn't take much to hit 4.0. Certainly an H100 isn't needed, but it's still a good thing. That core voltage seems kinda high but my only experience with that socket is an 8600 where 1.318v was enough for 4.0., so maybe it's different. Have you tried raising your NB voltage and tuning down the core-v a little? Hopefully someone wiser than I will respond. heh.
    
CPUMotherboardGraphicsRAM
3570k@4.5ghz 1.21v Gigabyte Sniper M3 Sapphire 6950 Samsung 8g1866 
Hard DriveHard DriveHard DriveCooling
Samsung 830 Samsung F1 500 Crucial M4 64 (SRC) cpu:Noc NF-F12 / case:4x TY-141/gpu: 2x NB-Multi 
CoolingOSMonitorKeyboard
Venomous X, Accelero TT Win 7 64 Acer X213H Saitek Eclipse 
PowerCaseMouse
Superflower 650 plat Fractal Arc Midi G500 
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CPUMotherboardGraphicsRAM
3570k@4.5ghz 1.21v Gigabyte Sniper M3 Sapphire 6950 Samsung 8g1866 
Hard DriveHard DriveHard DriveCooling
Samsung 830 Samsung F1 500 Crucial M4 64 (SRC) cpu:Noc NF-F12 / case:4x TY-141/gpu: 2x NB-Multi 
CoolingOSMonitorKeyboard
Venomous X, Accelero TT Win 7 64 Acer X213H Saitek Eclipse 
PowerCaseMouse
Superflower 650 plat Fractal Arc Midi G500 
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post #3 of 11
you should have fun mate overclocking that. I had my E8400 @ 4.5ghz before I went sandy. thumb.gif
post #4 of 11
Thread Starter 
Hrm, well....I'm still thinking that 39c at idle is too high, which is what I'm showing at the moment. I've already reapplied the thermal paste as the stock paste on the h100 sucked, but I honestly would've thought I would be seeing lower temps at idle. Anybody care to chime in on what I might be missing here?
post #5 of 11
1.41875 for 4.0ghz? That can't be right....
post #6 of 11
Thread Starter 
Quote:
Originally Posted by paulerxx View Post

1.41875 for 4.0ghz? That can't be right....

the options for voltage i have in my bios are as follows:

all current settings are for stock clock
CPU Core - 1.18v
CPU FSB - 1.1v
Memory - 1.5v
nForce SPP - 1.3v
nForce MCP - 1.5v

I had to increase CPU Core to 1.41875v to get the pc to boot into windows at 4.0ghz which was 8x multiplier and 500 fsb. Am I missing something since you're saying that's too much voltage? Is this cpu on it's last leg? (4 years old but never oc'd until I started messing with it 2 days ago)
post #7 of 11
Thread Starter 
any opinions? are my stock temps too high for h100 with all these fans and ac running straight into the case?
post #8 of 11
Thread Starter 
bump
post #9 of 11
Maybe your CPUs temp sensor is jsut very inaccurate at low temps and load? For reference my 3770k with H100 idles at ~30c.
     
CPUMotherboardGraphicsHard Drive
Amd Athlon 64 3200+ Asus K8U-X Radeon HD 3850 AGP Samsung SpinPoint F1  
Hard DrivePowerCaseMouse
Seagate Barracuda 7200RPM Corsair TX750W Nexus Breeze Logitech G400 
Mouse PadAudioAudioAudio
Allsop Peace Creative Sound Blaster X-Fi Xtreme Audio Creative Gigaworks T3 Sennheiser PC 360 
CPUMotherboardGraphicsRAM
Intel Core i7-3770k Asus P8Z77-V Pro Club3D R9 290X Battlefield 4 Edition Corsair Vengeance 2x4gb 1600mhz cl9 
Hard DriveHard DriveCoolingCooling
Western Digital Black 4TB Samsung 830 128gb NexXxoS UT60 Full Copper 240 NexXxoS UT60 Full Copper 360 
CoolingCoolingCoolingCooling
EK-D5 Vario X-RES 140 EK-FC R9-290X - Acetal + Nickel Full Cover EK-FC R9-290X Backplate EK-Supremacy Acetal + Nickel 
CoolingCoolingCoolingOS
EK ZMT 16/10MM tubing 5x Scythe Gentlle typhoon 1850rpm 10x EK-CSQ Fitting 10/16mm Windows 8 Pro English 64-bit 
MonitorMonitorKeyboardPower
Acer V233h BenQ XL2430T Ducky Shine 2 Corsair AX850 
CaseMouseMouse PadAudio
Corsair Carbide Air 540 Ninox Aurora Roccat Taito King-size 3mm Sennheiser PC 360 
AudioOther
Creative Gigaworks T3 Creative Soundblaster X-Fi Audio 
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CPUMotherboardGraphicsHard Drive
Amd Athlon 64 3200+ Asus K8U-X Radeon HD 3850 AGP Samsung SpinPoint F1  
Hard DrivePowerCaseMouse
Seagate Barracuda 7200RPM Corsair TX750W Nexus Breeze Logitech G400 
Mouse PadAudioAudioAudio
Allsop Peace Creative Sound Blaster X-Fi Xtreme Audio Creative Gigaworks T3 Sennheiser PC 360 
CPUMotherboardGraphicsRAM
Intel Core i7-3770k Asus P8Z77-V Pro Club3D R9 290X Battlefield 4 Edition Corsair Vengeance 2x4gb 1600mhz cl9 
Hard DriveHard DriveCoolingCooling
Western Digital Black 4TB Samsung 830 128gb NexXxoS UT60 Full Copper 240 NexXxoS UT60 Full Copper 360 
CoolingCoolingCoolingCooling
EK-D5 Vario X-RES 140 EK-FC R9-290X - Acetal + Nickel Full Cover EK-FC R9-290X Backplate EK-Supremacy Acetal + Nickel 
CoolingCoolingCoolingOS
EK ZMT 16/10MM tubing 5x Scythe Gentlle typhoon 1850rpm 10x EK-CSQ Fitting 10/16mm Windows 8 Pro English 64-bit 
MonitorMonitorKeyboardPower
Acer V233h BenQ XL2430T Ducky Shine 2 Corsair AX850 
CaseMouseMouse PadAudio
Corsair Carbide Air 540 Ninox Aurora Roccat Taito King-size 3mm Sennheiser PC 360 
AudioOther
Creative Gigaworks T3 Creative Soundblaster X-Fi Audio 
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post #10 of 11
Thread Starter 
any way to troubleshoot that or find out if that is the case? at first thought, sounds like something i can't do anything about:>
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