you could bump vmch to 1.6 and vfsb to 1.3, no need to go higher for 380fsb..
you could bump vmch to 1.6 and vfsb to 1.3, no need to go higher for 380fsb..
syl: Nice clock.....
What are the vmch and vfsb? Obviously voltages but for what exactly? Just curious since I've never seen this in the Asus BIOS. My guess is something to do with the NB and SB...Quote:
Originally Posted by shogo_ca
I can't wait til tomorrow! Bad Axe 2 will be here... sucks I have to work in the evening but it will be a fun night. ;) (assuming I can get the back mounting plate off from the motherboard... I have the tuniq tower 120 and I should have never taken off that damn adhesive)
EDIT: Is that 1x4 power connector on the motherboard required for a eVGA 8800GTS?
Hey guys, I had a weird issue with Quake 4 crashing and causing a reboot tonight.
I was at 3.2GHz (356x9), DDR2-1066 on the RAM (rated DDR2-1000, timings were 5-5-5-15), 1.35vcore (tried up to 1.4v, didn't stop reboots). I tried setting RAM to 2.36v, didn't help. At one point, it rebooted before I got into Windows.
After setting it back down to 3GHz (334x9) and DDR2-1000 (4-4-4-8, games fine on Quake 4 with this last night), everything was smooth. Did 3 hours of Small FFTs with no issues at 1.3375v.
My NB volts are like 1.525 (one notch above the lowest setting in BIOS), and FSB was 1.27v I believe, (2 notches above lowest setting, I think).
Should I set these higher for more stability at 3.2GHz? What is the danger zone for these two voltages?
Thanks a lot, guys!
Write down all your settings in the bios. THEN drop back to default settings NO Overclock and boot into windows for a day or 2. See if it resolves the problems in Windows or not.Quote:
Originally Posted by sfxs
If it doesnt you can point the finger to some peice of software that you might have installed over the last 2 weeks.
If the problem goes away then you can point it at your bios settings and i would take the advise of "shogo_ca" about the MCH and FSB Voltage settings.
Topboy:slapass: himself for being lazy about questions.
same here. i have had that issue after reflashing every single time. no matter what bios im flashingQuote:
Originally Posted by GPSeek
Thanks:D ATM, I've seem to hit a FSB wall at 473MHz. I'll try to go higher tonight by bumping Vmch to 2.0V.Quote:
Originally Posted by pcdoc1
I got the same beeps. Like I said earlier, 2507 does NOT like my Crucial Ballistix which requires 2.2V when in config mode. I have to put in some cheap regular RAM to get into config mode. In any other BIOS release I got into config mode just fine when the RAM settings are at default (1.84V).Quote:
Originally Posted by GPSeek
can someone give me link with bx2 vmch mod pictures?
...with 1.7V (vmch) on 1333 Mhz strap i can't go higher than 486Mhz FSB
thanks
Please refer to my signature.Quote:
Originally Posted by clark_carty
I use Crucial Ballistix PC2-8000 (2x1Gb) + Crucial Ballistix Tracer PC2-8000 (2x1Gb) without such a problem. :fact:
Did you ever try to put the bios jumper to the configure mode after hearing the 3 beeps?:stick: Your Ballistix sticks should have no problems with configure mode.:)
From VR-Zone:Quote:
Originally Posted by Ph03n1x
http://www.vr-zone.com/?i=4111&s=8
thanks again :toast:
vfsb helps you to raise fsb higher
vmch is the northbridge voltage, wich is the memory controller, helps stability.
...higher vmch is necessary for reaching higher FSB speeds
Hi everyone, so disabling watchdog improves overclock?
I had previously an Asus P5W-DH with a C2D 6600E @3.6 ghz 24/7, but I changed to quad core and BX2 and it has been a real pain in the ass to OC this rig, I liked to use watch dog because it helped me a lot because every time the system freezes it re-started the system and reseted the change I´ve made, and if it's disabled I have to move the jumper again and again.
I managed to run Wprime at 8x380 (3.04 ghz) 1.45 v, MCH 1.6, FSB 1.4, Ref 266, Mem 533, 5-5-4-14, 2.12 v but 1 mhz higher and the system refuses to start and after a while it even refused to start at that setting :confused: , raising volts to CPU didn't work neither with MCH and FSB volts. C1 disabled, power slop enabled, VT enabled, XD enabled, watchdog enabled.
Any suggestions?, please.
NP. Tempurature on the NB will ramp up quickly once you begin increasing the voltage beyond 1.7V - hope you're not still using the stock passive heatsink.Quote:
Originally Posted by Ph03n1x
IMHO, raising both Vfsb and Vmch will help with higher clocks but Vmch seem to have a greater effect. I topped out at 450ish with Vmch@1.7V but was able to go over 470 with Vmch@1.9V (all done with x9 multi).
Sometimes I get the beeps sometimes I don't.Quote:
Originally Posted by GPSeek
If, after a major overclocking issue, it doesn't come up with the screen about settings not working, press Y or N, I usually just get a black screen. It will not go into config mode at all unless the ballistix is taken out, and cheap stuff put in. 2395 does not have this problem for me, which I've fallen back to. This only started happening in 2507.
why not use the jumper?!:stick:Quote:
Originally Posted by clark_carty
I posted this in hardforum, but I thought I might post this here since there seems to be many knowledgeable bad axe 2 owners:
Ok, here's the situation: I have four sticks of memory, a pair of Geil 1GB sticks (GX22GB6400UDC), and a pair of Geil 512MB sticks(GX21GB6400UDC). Both the same type of memory, DDR2 800.
With two sticks installed (2GB), the computer is perfectly stable (both sticks in the blue slots). If I add the additional two 512MB sticks (blue or black), the computer becomes unstable. Unstable meaning: it will fail with aggressive memory settings, fails orthos early.
If I do a memory test (memtest86+ v1.65) with all sticks in, I pass with no errors (6-8 passes). The one thing I have not tried yet is install ONLY the 512mb sticks, but I will try this later today.
My question is: Is there any reason I am not able to run 4 sticks of memory? When I first set the system up, it seemed reasonably stable with the 4 sticks. It seems to have deteriorated since (2+ weeks) and is now very unstable with these 4 sticks. 2 sticks is no problem whatsoever.
My current thinking is to RMA the 512mb sticks and just be happy with 2GB. Any insight into this problem is appreciated.
system config:
E6600 @ 3.4GHz (378FSB)
BIOS 2333
1.425vcore in BIOS (1.4v at load)
stock mch/fsb volts
runs 60-64C under orthos load
533/266 frequencies
4-4-4-12 @ 2.2v RAM settings
C1E enabled (also tried disabled)
EIST disabled
With 2GB RAM installed, 22hr 55min orthos large stable with above config. With the extra 1GB, the system would fail under 1hr typically.
This is using the jumper.Quote:
Originally Posted by GPSeek
The MB refuses to go into config mode with the jumper with the Ballistix with 2507. It works fine with 2395.
In order to get into config mode with the jumper in 2507 I have to use some cheap low speed, 1.85V stuff I had laying around.
It also seems like in every single BIOS revision, the EPP profiles are never read by default which stinks.
my bx2 can do 480Mhz @1.7V without problems. with 1.9V i'm allmost sure i could reach 500...Quote:
Originally Posted by syl
but i think i won't do any mods because i'm buying e6600 in few weeks...FSB 480 will be enough for E6600..
Did you flash bios at default speed? I think you should always flash bios at default cpu speed, then change setting in bios. :)Quote:
Originally Posted by clark_carty
Huh... It is very unlikely. But it happens to you.Quote:
Originally Posted by clark_carty
However, I think you should be able to boot in the configure mode with any bios version unless your sticks are defective.
I think you should really repeat your tests with both bios versions to confirm your claim. :) :stick:
One thing I want to add is, after bios flashing and failing to boot and before switching the jumper, unplug the power plug, hit the power button on your case for a few seconds to discharge, which may help. :)
go ahead, do that.Quote:
Originally Posted by sjoback
If all sticks are in, it takes much longer to do a thorough test.
Please remember that memtest86+ visits the memory addresses randomly in nature. It takes some time to cover 3Gb.
It seems to me that one-pass for 4Gb takes much longer than twice of the one-pass for 2Gb.
Another suggestion is to do a 4-stick overnight memtest.
Edit:
You may also try to increase mem volt a little bit, say 2.32v.
You will probably find it harder to reach the same FSB with the higher multiplier and extra cache of the E6600.Quote:
Originally Posted by Ph03n1x
Good luck though and here's hoping you'll score a golden CPU.