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Can't hit 3.4 on a E8400? - Page 2

post #11 of 18
Quote:
Originally Posted by Eastspur View Post
Wow thanks a lot, I bet thats my problem. Is there a safe way to jump past it without risking umm, not being able to post into the bios?
The board can handle 1.5v SPP at 450 - 500 FSB (1800 - 2000 QDR), so if it doesnt post it is because of the CPU or ram. Just make sure to have your ram set to unlinked and sync'ed and set memory to 1000. Then try 1600 QDR to jump the hole to see if the computer will post at 3.6GHz, then try pushing it from there. Just keep the vcore below 1.36v.

Here are some more posts on the vcore issue on these CPUs:

E8400 OC attempt

Help With E8400
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post #12 of 18
Thread Starter 
Quote:
Originally Posted by ericeod View Post
The board can handle 1.5v SPP at 450 - 500 FSB (1800 - 2000 QDR), so if it doesnt post it is because of the CPU or ram. Just make sure to have your ram set to unlinked and sync'ed and set memory to 1000. Then try 1600 QDR to jump the hole to see if the computer will post at 3.6GHz, then try pushing it from there. Just keep the vcore below 1.36v.
thats with the multi at x8 right? if I get up higher and stable should I bump the multi back up to 9 or should I leave it at 8 from here on out? Sorry for my newbishness...
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post #13 of 18
Quote:
Originally Posted by Eastspur View Post
thats with the multi at x8 right? if I get up higher and stable should I bump the multi back up to 9 or should I leave it at 8 from here on out? Sorry for my newbishness...
I would bump it back up to x9 multi. Your board can handle the higher FSB, and the chip should be fine at 3.6GHz most run that with only 1.30v vcore). So I would set it back to x9 and start from 1600 QDR, then work your way up.

Also, is this a new CPU, or did you buy it from someone?
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post #14 of 18
Thread Starter 
Quote:
Originally Posted by ericeod View Post
I would bump it back up to x9 multi. Your board can handle the higher FSB, and the chip should be fine at 3.6GHz most run that with only 1.30v vcore). So I would set it back to x9 and start from 1600 QDR, then work your way up.

Also, is this a new CPU, or did you buy it from someone?
I bought it new, been running it stock for about a month.
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E8400 @ 3.3ghz XFX 680i LT 9600GT SLI 2x 2gb OCZ PC6400 @ 5,4,4,15,2T @ 1000mhz 
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E8400 @ 3.3ghz XFX 680i LT 9600GT SLI 2x 2gb OCZ PC6400 @ 5,4,4,15,2T @ 1000mhz 
Hard DriveOptical DriveOSMonitor
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post #15 of 18
Think about +5GHz man!!!
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post #16 of 18
Thread Starter 
Quote:
Originally Posted by BabakSanei View Post
Think about +5GHz man!!!
nah I wouldn't go, nor need to go above 4, not with the way these seem to be failing at higher volts. We'll none of this is about need is it?
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E8400 @ 3.3ghz XFX 680i LT 9600GT SLI 2x 2gb OCZ PC6400 @ 5,4,4,15,2T @ 1000mhz 
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8400 @ 3.3ghz XFX 680i LT 9600GT SLI 2x 2gb OCZ PC6400 @ 5,4,4,15,2T @ 1000mhz 
Hard DriveOptical DriveOSMonitor
WD 150 Raptor and 250 SG ASUS DVD XP Pro x64 Samsung 226bw 
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post #17 of 18
Quote:
Originally Posted by Eastspur View Post
I do have the new Bios, p07 I believe. I did set the RAM voltage at 2.1, When referring to the "actual voltage" that is indeed after a reboot. I will try putting the timings on auto. Some reason FSB is at a 1400 type value if I remember correct, not a 400... or maybe if that sounds completely wrong I could be mistaken. At work right now so I can't check.

Also what exactly would be 1:1? When I set it to linked at 1:1 it pushes my memory way up to like 1200mhz.
But memory is DDR. To get 1200Mhz at a 1:1 divider you'd have to be running an front side bus of 600Mhz. That is just not happening on any chipset except (maybe) a lucky X48 or something with subambient cooling for the NB.

Generally you can set the memory to 1:1 when OCing your processor and then dial up the divider if you want later on. Just set it to 2x your FSB.
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Suzanne
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post #18 of 18
Quote:
Originally Posted by Schroedinger View Post
But memory is DDR. To get 1200Mhz at a 1:1 divider you'd have to be running an front side bus of 600Mhz. That is just not happening on any chipset except (maybe) a lucky X48 or something with subambient cooling for the NB.

Generally you can set the memory to 1:1 when OCing your processor and then dial up the divider if you want later on. Just set it to 2x your FSB.
His board is an NVIDIA chipset. So he is refering to 1400 QDR. NVIDIA takes the FSB and multiplies it by 4, so a 1400 QDR is 350FSB. It is the same way Intel markets their CPU FSB speeds. The E6X00 are 1066 FSB while the E6X50 are 1333 FSB, which is 266 and 333 respectively.

Also for those that are talking about 1:1 dividers, NVIDIA doesnt use dividers as a setting. When you set the memory to Linked and Sync'ed, that should be true 1:1. But you can also set the memory to Unlinked, which then allows you to set the memory at any speed you want, just type it in exactly. Then the board intuitively sets the memory to any one of many dividers (there are lots more then Intel chipsets offer) to get it as close as possible to your setting (this is listed as Actual Mem MHz in bios).
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My System
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CPUMotherboardGraphicsRAM
6850K ASUS X99-AII eVGA GTX 1060 32Gb Team Vulcan DDR4 3000 Cas 15 
Hard DriveHard DriveHard DriveHard Drive
Samsung 960 EVO NVME Crucial M500 Seagate HDD Samsung F3 
CoolingOSMonitorKeyboard
H100i Windows 10 Pro 64 Samsung KU6300 40" Corsair K70 Vengeance 
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