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ICH and IOH are at 1.28v bumped my bclk from 205 to 211 with the 1639 BIOS, I'm sure more voltage will get me higher, but I'm not greedy, 211 is fine.
Now I'm testing 211 x 21 with CPU voltage at 1.42
If it is ok then I'll drop the voltage a little and try again.
Looks like I have very similar problem, can't pass 207 BLCK ... moreover raising VTT/Vcore seems not to work.. My ICH & IOH are 1.12v ,what max. voltage&temp. is safe for ICH & IOH considering 24/7 work ? (now my temps on SB & NB stay around ~43C idle ).
If you are going to increase voltage for the IOH/ICH I recommend mounting a fan on one of them!
I am completely stumped.
Earlier in this thread I spoke about an issue when raising the BCLK over a certain number (around 206) I start having issues with my TOP(Main) 5870..The bottom 5870 remains working and without issue but I obviously lose use of Crossfire and one of my 5870's. I tried using a different 5870 as the TOP (Main) card to see if it was specific to the card itself, but I have the same issue.
I have tried raising my IOH, ICH (to about 1.375), tried increasing the PCI-E frequency to 103-105, increased the PCI-E voltages, tried increasing the CPU voltage, the QPAM voltages, setting ram to ~1200MHz, etc...NOTHING will stop the TOP 5870 from working over a certain BCLK...
What a bummer, I know this system has more legs in it, but it refuses to comply with Crossfire...My top PCI-E slot doesn't like something about a higher BCLK and I feel I have exhausted everything I can think of to try...It runs PERFECTLY stable at 200 BCLK with very minimal voltages on everything but the CPU which I need to bump to 1.425.
I use 2 x 4870x2 cards, and now bclk is at 211 with no issue on the crossfireX configuration!
I tried a different 5870 in that top slot and it still does it. I am only left to guess that it's a sign to be happy with my 4.2GHz overclock with this chip.Quote:
Originally Posted by Salamndar
Even with this problem the system still goes into windows (you can tell by the HD activity) but it just will not display video. When I plug my LCD into the bottom 5870, I get video and everything is fine.
As soon as I go back to 200 BCLK(by changing the settings using the bottom card) the first video card works perfect again.
It is a mystery that seems will forever go unfound!
hello
I flashed with the latest bios 1639 and I have boot problems have reappeared
If I restart it's OK but if I turn off the computer and turn off the power when I start, it's still stuck on DET RAM or IDE DECT, etc. ...
I tried to figure back to previous bios and see if it's OK
the last time was because of the RAM to 2000MHz, bios 1504 was corrected the problem
does anyone has encountered this problem?
thanks
I have a problem with 1639 BIOS when I try to run my OCZ reaper at 1866 CL9 it won't boot, I don't feel like I wanna reflash to 1504 since I spent 3 days overclocking and testing with 1639!
Maybe some other time I'll do that.
This morning I completed 8 hours of prime at 211.5 x 21 which is around 4.438GHz :up:
Next will be trying to lower voltage a little on the API/DRAM, ICH and IOH a little using 4 hours of OCCT.
After that I'll test My RAM at speeds between 1600 and 1800 if possible with CL8 and CL9.
Try a different PSU. I had the same issue with ASUS Blitz Formula Mobo. After i changed the PSU I had no more problems like this.Quote:
Originally Posted by tistou77
It is simple to give this a try .
Quite a few of us seem to have encountered the "totally stable, turn off pc & turn off power outlet and when turned back on, pc very unstable" bug aka the "cold boot" issue this board suffers from.Quote:
Originally Posted by tistou77
I think it's a ROG feature ;)
In all seriousness, roll back to 1504 and see if the problem persists. 1504 is the only BIOS for me that doesn't cause the cold boot problem.
I completed 8 hours of prime95 + 25 pass of LinX on 211 x 21 at 4438 MHz :up:
But didn't like the temps and voltages which where as following:
CPU v @ 1.45
QPI/DRAM @ 1.38
PLL @ 1.88
ICH @ 1.28
IOH@ 1.28
Temps with room temp. at 29c where 82 c !
So I decided to let go a little and try 21 x 201 with some very lower voltages.
I forgot to take a screen shot for the late overclocking...:mad:
Now i got it! :DQuote:
Originally Posted by CryptiK
Quote:
Originally Posted by CryptiK
same for me 1502 / 1504 removed my coldboot but 1639 brought it back -_-
What temps idle/stress did you have on ICH & IOH with 1.28v ??Quote:
Originally Posted by Salamndar
For now is not very good the new bios 1639 ?
For me 1639, it works well, no problems at all.
Quote:
Originally Posted by El_Lute
Same here...working great for me! :D
Any issues with the onboard sound? How about audio quality?
I use a small 4 CM fan on the north bridge that keeps it cool when load at 54 C.Quote:
Originally Posted by SwIeRsZcZ
I converted back to 1504.Quote:
Originally Posted by El_Lute
Still on 1406 here, if it ain't broke, don't fix it :);)
I gave 1639 another chance, this time downloaded directly from Asus Page, not from FTP (if this does matter), also downloaded the new LinX (0.6.4), the maker said there was some fixes (fixed a somewhat rare bug leading to false LinX errors when CPU usage was high), upped CPU PLL to 1.9v (previous was 1.89v) and now pass without errors 20 run of LinX.
Also, i was getting cold boot problem with 1504 with the rams at 2000... so far i did not get any with 1639.
pablo how much is your oc? and whats your vtt voltage at to run your ram? i have the same cpu/ram/mb as you
4.2GHz, 21x200, Vcore at 1.2625v, QPI/DRAM at 1.525v, CPU PLL at 1.91v and RAM at 1.65v.Quote:
Originally Posted by yiannit
Heh,a familiar face (should I say bill ;) ) from the old M2F thread. No issue with the onboard sound, I have used XP32, XP64, Vista 64 and now Win 7 with no issues. Quality is the same as the M2F sound card - they're the same electronically AFAIK.Quote:
Originally Posted by JoeBar
Strange, most people I've read report raising PLL has negative effects on stability. Guess it depends on CPU though, or maybe I've missed all the other posts heh.Quote:
Originally Posted by kpablo