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First overclock: E8400. What is safe?

Forum Overclocking : CPUs - First overclock: E8400. What is safe?

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doomsdaydave11   06-02-2008 at 05:10:02 AM

I have an E8400 and have been running Prime95 for 15 minutes as I'm posting this (lol. Yes I will run it for a long period of time... just not right now ;) ) I raised the bus speed to 380.0 MHZ x9 = 3420 Mhz, and my core voltage right now is 1.36v and the CPU is hitting 58ºC tops with an average of about ~54ºC. What temps should I start to worry about?

 

E8400
Arctic Cooling Freezer 7 Pro
GA-EP35-DS3L

 

Thanks.

Message quoted 2 times
------------------------------ E8400 3.6Ghz | 4GB DDR2-800 | HD4870 | 780GB HDD Space | VX550W | WinXP | Win7-64 | Ubuntu Studio 8.10

 

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imrul   06-02-2008 at 05:38:39 AM
- 0 +

keeping it half way of tj is ok for max temp, start worrying when theres 20ºC-30ºC difference from tj max.

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doomsdaydave11   06-02-2008 at 05:42:05 AM
- 0 +

Ok, let me explain: This is my first overclock... ever. What is TJ Max? My distance from it is 36... whatever that means.

Reply to doomsdaydave11
htoonthura   06-02-2008 at 05:48:54 AM
- 0 +

doomsdaydave11 wrote :

I have an E8400 and have been running Prime95 for 15 minutes as I'm posting this (lol. Yes I will run it for a long period of time... just not right now ;) ) I raised the bus speed to 380.0 MHZ x9 = 3420 Mhz, and my core voltage right now is 1.36v and the CPU is hitting 58ºC tops with an average of about ~54ºC. What temps should I start to worry about?

E8400
Arctic Cooling Freezer 7 Pro
GA-EP35-DS3L

Thanks.




Reduce the voltage if you can. I have 1.344 V for 800 Mhz overclock with Q6600. In your case, 420 Mhz for 1.36 V is a lot, i think. Reduce the voltage or increase the frequency. then run the prime test.


Message edited by htoonthura on 06-02-2008 at 05:49:24 AM
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imrul   06-02-2008 at 07:10:05 AM
- 0 +

its the estimated temp if reached, will cause crashes and may fry the cpu

Reply to imrul
alex_oneill2006   06-02-2008 at 12:26:07 PM
- 0 +

Dude really i have an e8400 with EP35C-DS3R

I can run it at 3.6GHz with only the slightest voltage increase! Like 2 incraments above the default voltage.

If anything Put 1.25V in the BIOS and 400MHz FSB you will do FINE i was running orthos for 2 hours!

Well thats with my e8400. AS they are all different, your results may differ, but really 1.36 V is WAY TOO HIGH! I would get 4.0GHz+ at that voltage!

REgards

Message quoted 1 times
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bimmerbill   06-02-2008 at 04:19:42 PM
- 0 +

I did 9x400 (3.6GHz) and left everything else stock. Works fine. Running 25/26C at idle (with RealTemp), 10C more with CoreTemp.

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yetyhunter   06-02-2008 at 04:23:09 PM
- 0 +

that voltage is way to high for that speed.I'm running mine at 3.6 ghz with 1.18125 vcore voltage.

Reply to yetyhunter
doomsdaydave11   06-03-2008 at 12:37:04 AM
- 0 +

alex_oneill2006 wrote :

Dude really i have an e8400 with EP35C-DS3R

 

I can run it at 3.6GHz with only the slightest voltage increase! Like 2 incraments above the default voltage.

 

If anything Put 1.25V in the BIOS and 400MHz FSB you will do FINE i was running orthos for 2 hours!

 

Well thats with my e8400. AS they are all different, your results may differ, but really 1.36 V is WAY TOO HIGH! I would get 4.0GHz+ at that voltage!

 

REgards

lol. Ok ok, I'll tone the voltage back to maybe 1.2v~1.25v and take the FSB up to 400Mhz. I just did what the BIOS told me to! It said turn off this, turn off that, enable this, enable that. Set this on auto... I did so, and when I took the FSB up to 380, it did that automatically. How high do you think I could get with my specs? I have 4GB of Corsair XMS2 DDR2-800 if that makes a difference. I need my computer to:

 

Last me at least 2.5 years at that speed.
Be completely stable under 100 percent loads whilst doing huge video transcoding

 


------------------------------ E8400 3.6Ghz | 4GB DDR2-800 | HD4870 | 780GB HDD Space | VX550W | WinXP | Win7-64 | Ubuntu Studio 8.10

 

Reply to doomsdaydave11

kpo6969   06-03-2008 at 01:40:58 AM
- 0 +

doomsdaydave11 wrote :

I have an E8400 and have been running Prime95 for 15 minutes as I'm posting this (lol. Yes I will run it for a long period of time... just not right now ;) ) I raised the bus speed to 380.0 MHZ x9 = 3420 Mhz, and my core voltage right now is 1.36v and the CPU is hitting 58ºC tops with an average of about ~54ºC. What temps should I start to worry about?

E8400
Arctic Cooling Freezer 7 Pro
GA-EP35-DS3L

Thanks.


Suggestion for a 3.6 o'c
set vcore to 1.275 and see what happens, don't change anything else
you can go down a notch at a time if stable at 1.275
I set mine at 1.262 for 1.216 actual in cpuz

E8400
Artic Cooling Freezer 7 Pro
GA-P35-DS3L

------------------------------ P35-DS3L Rev 2 bios F9C l E8400 @ 3.6Ghz @ 1.232v l OCZ Vendetta 2 /LGA775 Bolt-Thru l 4GB G.Skill 8800PI@1000mhz 4:5 @ 1.87v l WD3200AAKS 320GB l Evga 8800GTS 512 l X-Fi Xtreme Music l Corsair HX520 l Antec Sonata III 500 l Vista32 SP2 l Win7 X64 7600
 Reply to kpo6969
addictedoverclock   07-03-2008 at 05:02:15 AM
- 0 +

Hi, I have an 8400 on an ASUS P5K-E Board. My max OC was 3.6 with Cosair 6400 ram, I just upgraded to 4gigs of OCZ 8500, and just went up some more, now currently running 3.96@ 1.168 Volts. I notice a huge improvement in the new ASUS boards from my older Gigabyte board and ECS (junk) board. I bet I still have room to go. But that is all for tonight, going to let orthos run... oh SpeedFan and HWmonitor show CPU temp @ 32 idle and Cores @ 44&37


Message edited by addictedoverclock on 07-03-2008 at 05:13:17 AM
------------------------------ Atec 300 case--Thermaltake 600 PSU--Asus P5K-E Mobo--lapped e8400 @ 3.96 with1.19v.. 436x9-Northbridge@1.4v-4 Gigs OCZ 8500--Vista Ultimate 64bit—Nvidia 9600 GT OC—Lapped Zalman Cpu fan--4 WD Caviars--2 SATA DVD burners—Samsung 226BWx2—4x120mm fans-140mm
Reply to addictedoverclock
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