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Your problem is puzzling...your E0 should easily be doing 4GHz on about 1.25v real, so ≤1.3 BIOS. I would say it's an FSB issue but your mobo should easily make 445FSB for 4GHz with very little increase in voltage. Have you run memtset? Sometimes an unstable OC means simply that something is damaged/corrupted, unfortunately. :(Quote:
Originally Posted by Dark-Energy
Yeah I don't get it. If I run at 450 fsb sometimes it won't even go through the loading screen to windows. If I restart it at same settings, sometimes it will boot into windows. If I restart it again with the same exact bios settings, it will sometimes freeze when loading the bars. All the stress tests like orthos prime 95 and mem test run without any issues for 3-4 hours, or until the system hangs and restarts.
When I do get into windows at that high of fsb, the VTT needs 1.3v at least to stop the windows theme from changing to classic, and to stop CCC from crashing, and to stop windows host process to from working. NB also needs like 1.42v
I'm thinking it's an issue with ACPI or something, so I'm going to adjust all my bios settings and reformat.
I hope it's not your mobo playing up. I had 465 FSB stable (orthos, dual super pi 32m) but then my PC started to crash randomly in games just like yours, and sometimes it would freeze at POST which was very annoying. I'm blaming it on the 680i mobo because my other components are very capable but the 680i is notorious for FSB holes. I'm now down to 4.3GHz @453 FSB and will continue to go down until I get no random crashes/reboots. Good luck with the reformat. :up:
Here's my new 24/7 clocks (for the time being). Still playing with chipset/HT voltages.
BIOS values:
CPU 1.3625v
FSB 1.3v
Mem: 2.1v
NB: 1.5v
SB: 1.6v
HT: 1.5v
http://i293.photobucket.com/albums/m...9064_3_3_9.png
What did you do now to make it stable Gurusan ?
Got another cpu the other day E8400 popped it in the machine with TRUE 120 and I have stuck sensors core temp shows 28 and 40 or something the on core will go up and if the second goes over 40 it seems to work. it E0 so im happy about that I plan on Dry icing it and keeping it on the single stage but its just upsetting for a brand new chip
Uh i have been lucky this time, im testing my E8400 Q822A521 :D
As we speak im running Prime95 4235MHz 1.248V on JR P45, so far only 5min but still going :D
Cooling TRUE Black and 2 P12's.
vNB: 1.4V
VTT: 1.32
GTL 0/2: 0.61x
GTL 1/3: 0.61x
GTL NB: 0.57x
EDIT: 30min, need lapping hit 64C Load for a short piriod of time
Got my gtl refs right and my memory stable :)Quote:
Originally Posted by Leeghoofd
1.2VTT and .655/.655 gtl ratios
Nice. I'm also now playing with gtl's, it really helps getting stable with higher clocks on lower voltages. :up:Quote:
Originally Posted by gurusan
http://img61.imageshack.us/img61/9641/rrr2zr9.th.jpg
:D still need a lot of tweakning, the board acts like it has a mind of its own, and my TRUE Black need's lapping.
Only ran half an hour Prime, having some boot problems i need to fix befor i want to make a full test.
Wow... It's been a long time since I've been around these forums now.
Finally upgraded to what's in my sig from a AMD64 3200 with 1024mb of ram...
Big difference in speed and overall performance.
I finally started messing around with the bios and this is what I've come up with so far...
Anyone have a similar setup that's willing to help me out with all of the bios settings?
I cant wait to rip up my E8400 once my board is back from rma might do some biostar DICE benching though
Okay reformatted didn't do anything :(
Once again, specs are
Antec 900
GameXstream 600 watt
P5Q Pro
E8400 E0
Powercolor 4850
A-Data DRR2 800 5-5-5-18
Settings are
AI Overclock tuner: MANUAL
CPU Ratio Setting: 9
FSB Strap to North Bridge: 333
FSB Frequency: 445
PCI-E Frequency: 100
DRAM Frequency: 890
DRAM Timing Control: MANUAL
CAS# Latency: 5
DRAM RAS# to CAS# Delay: 5
DRAM RAS# Precharge: 5
DRAM RAS# Activate to Precharge: 18
RAS# to RAS# Delay : auto
Row Refresh Cycle Time: 55
Write Recovery Time: auto
Read to Precharge Time: auto
DRAM Static Read Control: auto
DRAM Read Training: auto
MEM. OC Charger: ENABLE
AI Clock Twister: auto
AI Transaction Booster: auto
CPU Voltage: 1.256 (1.224 with vdroop, tried 1.35 but had same issues)
CPU GTL reference: 63x
CPU PLL Voltage: 1.58
FSB Termination Voltage: 1.34 (won't even get past loading screen if any lower)
DRAM Voltage: 1.9 (from 1.8)
NB Voltage: 1.44 (will freeze instantly in windows if any lower)
SBridge Voltage: 1.3
PCIE SATA Voltage: 1.6
Load Line Calibration: Disabled
CPU Spread Spectrum: Disabled
PCIE Spread Spectrum: Disabled
CPU Clock Skew : Auto
NB Clock Skew : Auto
CPU Margin Management : Optimized
Still freezing, random rebooting. Prime 95/Orthos runs stable for hours, or until the PC decides it feels like rebooting. The problem is, I can't crack down on the exact problem. Sometimes it boots into windows and runs fine for 2 hours then freezes, and other times it won't even get past the loading screen, in the same exact settings. So while I think changing a setting might have fixed the issue, it's just the randomness of the freezing that does. Also, when I do get into windows, it seems really awkward. Like slower, and really sluggish. And the windows logon sound happens before the logo even appears, but when I back down to 400fsb, it runs faster, but my FPS in games goes down (obviously).
Tried disabling static read control and read training and won't even post, but it used to. Maybe it's cause the settings were different or something. I only have execute disable bit enabled in the CPU config but everything else is disabled. I thought it was memory remap in NB config so I disabled it, but nothing changed.
:shrug:
E8400 Q828A351 and a couple of hours of Prime95 at 500x8 @ 1.31v
http://img253.imageshack.us/img253/2...0x8rln9.th.jpg
Dark-Energy, I think it's the ram thats holding you back. I have some of that A-Data and it doesn't like anything over 420 or so. I have a set of these G Skill's running 550 at 1.9v. Can't beat em for only $50
I thought it was my ram holding me back but it was actually my CPU vcore. I need quite a lot more vcore going from 9.5 multi to 9 multi, but look at my memory bandwidth with the FSB at 1900MHz and you'll see why this is my new 24/7 clock. :D
My friend just got a new E8400 and I'm wondering if this is a good batch?
Q836A097?
Guys, I got the sudden problem.
I have been using my new E8400 E0 for 6 weeks. 500x8 @ Vcore=1,160. I stressed it with Lipack, Prime95, MemTest3.8, OCCT, SuperPi. Absolutely no problems, BSODs. Full stable. But now I can have 2-3 automatical reboots per day. I decided to encrease Vcore by 3 notches up to 1,192. It seems the problem have been resolved.
Is it possible my chip "degradated" and now it needs more volts? :(
Anyone has info on Q827A353 (8500)?
I cant find a single reference in google.
http://www.imageshack.gr/files/xxm5n8ruh10zhx6ga8mi.jpg
Q835Α420 , Zalman 9700NT @ 1200rpm , 55C full load. awesomeness
on a DFI p4 DK plus
I've got a Q827A353 8500 in my rig (in sig), but the mobo went on me before I could stretch it's legs.....last thing it did was 16hours prime stable @ 3.8ghzQuote:
Originally Posted by shaolin95
with 1.216v load. The CPU has a vid of 1.2500.
Sorry I can't tell ya more till my replacement mobo gets here:(
Thanks.
I am already at 4.2Ghz OCCT stable on mine with 1.35v bios (1.32 cpu-z) and no v-droop mod.
I am going to check how high I can take it too before testing for the lowest voltage needed by tweaking the GTL stuff I keep reading about
This is on an asus p5k-e with tracer memory.
No your chip won't have degraded at such a low voltage; chips tend to degrade at about >1.4v over long periods of time, and they will degrade very quickly with excessive voltage.Quote:
Originally Posted by WaterFlex
My 4.4GHz 1.35v OC was everything-stable just a few weeks ago, but now if I try to boot with the same settings/voltages I just get lockups and sometimes don't make it to desktop. It's just one of these things. :shrug:
Ahahaaha, my chip is ok :up: I forgot that I need 1,17 not 1,16 (see my signature below) to be totally stable. LoL. :D