I had it running with no problems.. 4-4-3-10 @ 382 with 2.1V [13*230] was best [stable] I could get.. that was with one of the initial BIOS tho.. Have not tried anything recently.
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I had it running with no problems.. 4-4-3-10 @ 382 with 2.1V [13*230] was best [stable] I could get.. that was with one of the initial BIOS tho.. Have not tried anything recently.
I'd been out off the loop for a while. Back then I tested my i975Xa-YDG BIOS 1.06 with t2500 & t2600 air cooled. Both CPUs maxed out @ 3GHz (final speed). Another words, I can get the FSB up to 250MHz and 230MHz with the t2500 and t2600, respectively. I was never able to get the t2600 to pass 230MHz FSB:confused: .Quote:
Originally Posted by Highland3r
Nothing changed today. I'm stuck with 230MHz (with t2600) regardless of how or what I have tried. :dammit:
Now that I saw some of us were able to pass that brick wall. Can you give me a hint or two how you are able to manage to pass that 230MHz problem with the i975Xa-YDG mobo.
Thanks in advance.;)
Seems pretty much to be a case of once the CPU's maxed thats it!Quote:
Originally Posted by mid9XtremOC3r
Temps do seem to have an effect to a certain extent - T2600 seems to respond well moving air -> water -> phase, however didnt gain anything from phase -> DICE. This might well indicate that the board is now the limiting factor, as the chip's been to almost 300 FSB previously.
Play about with vcore if you can, maxed isn't always the best option. Have a play with "CPU VTT" setting too, that seemed to help a little.
Highland3r,Quote:
Originally Posted by Highland3r
I, too, believed it was the hardware limitation (the board) since the t2500 was able to run under 250MHz FSB. How those guys were able to pass that 230MHz FBS, in the case of the t2600, is definitely unknown to me at this point.
Well, fishing season's almost over. I have all winter to dig more info. But, if you guys - experts - know the trick(s), please give me a hint or two.
Your response's greatly appreciated!
I don't think there are any tricks involved ;)
I personally haven't seen anyone here turning a bad chip (i.e. 230FSB limit) into a good one. I've had a "good" T2600ES that did 250FSB on air and 263FSB on phase. Now I'm stuck with a "bad" Merom that won't go over 220FSB stable (228 absolute max unstable) on air. Cooling does help improve things as is stated before : 10-15FSb can be gained with phase change.
Personally I use this rubber frame, it works fine on my Yonahs ;)Quote:
Protecting the core:
I hate to admit - but I already managed to kill 2 Yonahs by not following what I constantly preach to my buddies - PROTECT THE CORE!!! One broke ( thank god a free sample ) by simply dropping it on the floor - the other ( of course my golden step 8 CPU I paid mightily for...) by installing a EVAP on one side too tight crushing part of the core.
There are several ways to do so - the easiest using several layers of electrical tape to form a shim (prolly around 4-5 layers depending on the height of tape )
Another easy way is to use the IHS of a socket 478 Intel P3 / P4
The Yonahs appear to be even more fragile to me than Dothan - but that could only be my personal experience..
http://www.microcool.it/immagini/gomminilab2.jpg
and for everyone interested I suggest to read this: http://www.microcool.it/english/gomminilab.html
have a nice MOD!
Hi guys & gals,
I thought I'd post the results of some of my preliminary testing of the i975Xa-YDG. In this instance on the basic heatsink supplied with the motherboard.
Firstly, I fitted the heatsink as supplied, set the CPU voltage to 1.4V and cranked the CPU clock up to 200MHz. (My Yonah T2500 has a 12x multiplier so it runs at 2.4GHz.) This simply forces the CPU to generate additional heat to make temperature measurements easier. Running the tests from the BIOS screens means the power saving features built into WinXP don't come into play, therefore helping to maximise the heat generated.
I ran the PC with the cover removed and monitored the ambient temperature about 6 inches away from the CPU using a thermocouple and also monitored the CPU temperature using the BIOS Setup. The CPU fan was connected.
The CPU temperature stabilised at 35 deg C with an ambient of 24 deg C.
Then I removed the heatsink and very carefully peeled off the foam "shim". It takes some time and patience persuading the edge to lift and then gently working your way around the whole piece using the tip of your finger. Actually, I would rather call it a "cushion" because its not inserted between the heatsink and the processor die but, instead, it surrounds the die and helps to prevent damage to it.
The surface of the supplied heatsink in contact with the processor is quite rough and noticeably a little convex in shape. Not an ideal finish to be using for such an important function. So my next step was to grind the surface flat by using some fine grinding paste, a few drops of oil and an old glass bathroom shelf. The glass ensures an extremely flat surface finish is obtained. After about 10 minutes of holding the heatsink upside-down and carefully rubbing it over a portion of the glass with the grinding paste and oil, a beautifully flat and matt surface finish was achieved.
After cleaning off the residue, I re-fitted the cushion, applied a little more heatsink compound and then re-fitted the heatsink over the CPU.
For both times of fitting the heatsink, I positioned the cushion at 45 degrees to the heatsink. As supplied by AOpen it is at 0 degrees, but since the CPU is at 45 degrees to the heatsink, it seems sensible for the cushion to be in the same orientation.
Both times I also used only a smear of heatsink compound - enough to make sure any miniscule voids between the heatsink and die are filled, but not so much as to create an additional layer for the heat to pass through.
When I turned the PC on again, and repeated the temperature measurements under indetical conditions, the CPU temperature stabilised this time at 32 deg C with the same ambient of 24 deg C. :cool:
So, by doing this simple improvement to the heatsink, the measured CPU temperature dropped by 3 deg C. Since the original rise in temperature was 11 deg C above ambient, the improvement represents an increase in thermal efficiency of some 27%.
Well worth doing, I think! :toast:
Edit: P.S. The BIOS is still at version 1.03
Hi guys,
I'm having the same fsb wall problem, I can get 230 with my T2400, but I'm unsecure to increase, cause I don't know how much vcore is safe on air (Big Typhoon). How high is safe? :)
Thanks!
Up to 1.5 should be safe with a big typhoon. But I doubt it will change the FSB wall ;)Quote:
Originally Posted by keyzersoz3
ok ... i have problems with my mobo :S
when i was puttins my 7950 gx2 in first pci slot i have ruin my vtt mod(around winbond chip).. ok i started my comp but with my winbond chip is wrong something (my cpu temp. 125°C)
ok so i have remove my vtt mod (tottaly) but problem is still here..
so what can i do?
should i try do vtt again?
Hi Operaman.Quote:
Originally Posted by operaman
When I initially booted up my i975Xa-YDG the RAID function didn't display. However, every time since, it now does so. I don't want it to because the normal PATA channels are now disabled. So you say you figured it out - please tell me how did you do it?
By the way, what on earth does
mean? I really havn't the slightest idea! :confused:Quote:
Originally Posted by operaman
Thanks for your help.
when raid controler is checking all 4 channels pres crl+f to get in setup menu and here if you check you will see option to disable raid...Quote:
By the way, what on earth does
Hi Rovtar,Quote:
Originally Posted by Rovtar
What BIOS version are you running? Certainly v1.03 has a RAID option to delete the array, but that doesn't disable the RAID BIOS from taking control of the PATA 133 channels.
After a lot of messing around, I discovered that the RAID function can indeed be turned off. I think it was from the normal Phoenix-Award BIOS "Integrated Peripherals > Onboard Device" screen (however, there may have been another setting I played with that helped do the trick - if I need to disable RAID again, I will take more careful note of what I did). Anyway, disable "Onboard IDE Control" and "Onboard SATA2 Control" and re-boot. The RAID driver now is not listed in the bootup sequence, so these two settings can then be re-enabled, the system re-booted again and, hey-presto, no RAID BIOS screen. :)
The only problem now is that the PATA 133 channels are still not being released to their normal non-RAID function. Does anyone have the answer here, or has this function died on me? :confused:
It would be really neat if we could compile a thread consolidating the RAID functions & characteristics - especially since AOpen don't seem to offer anything except the briefest mention in their manual & web-site.
Here's hoping . . .
Hi
Very willingly I will buy back from someone this mainboard
PS. I possess paypal and am from the team purepc.pl :)
Regards,
Soker
mail me: sawyer82@gmail.com
hm it is long time since i turned up my primary computer but i think bios is 1.03, i will try when i got my fixed mobo back..Quote:
Originally Posted by GrahamT
Am I missing something, how can the memory divider be changed to 800MHz ? And the multiplier is there a setting to change it? Anothetr problem i have is that AOpen only gave us 2.20VDIMM what are we supposed to do with this?
Seems like this board really needs some Vmods and other small tweaks. I do like the remote overclockig feature I'm suprised how stable it is.
Hi Liquid :)
- 800Mhz ram setting is not available I'm afraid, never will be I guess. 3/5 ratio (667) is as high as it gets
- vmods : http://www.xtremesystems.org/forums/...ad.php?t=95411 (look also @ first page)
- multi change : crystal cpu does the trick : download
Grtz,
Thorgal
Hi guys.
Can somebody tell me, how voltage and other setting for 200 fsb ?
Thank you my friend, I just packed up the ole Yonah AOpen kit after just several weeks of use and put it up for sale. The chip cost me $300 and the board $285 and I have it on EBay for $350 oovee.. A shame, I really should have researched it better. I thought I would be able to run high DDRII memory on this setup and use it for memory reviews.Quote:
Originally Posted by thorgal
While this does and would make an excellent home rig simply based on the chip's low power usage, low heat output and relatively powerful IPC, it's just not Xtreme material for FSB speed action. Even though this chip is the predecessor to Conroe, the AOpen platform simply has limitations I can't live with because I need something for reviewing as well as writing and folding.
And now for something completely off-topic: blash blah blah insert words here clap:
check your mail buddy :stick:Quote:
Originally Posted by Liquid3D
:-)
Thank you jmke your freindship and your integrity are what make this all worthwhile. I read and returned your email :)
I Flashed To The New 1.08 Bios Now I Can't Boot Up Past The Second Screen Where It Says Award Wining Bios..... Any Ideas On What To Do Now ?
I Had All My Data On My Raid Card With 3x320 Any Way I Can Save That ? If I Put My Raid Card On Another Mobo Will I Lose All My Data? Please Any Ideas
I Can't Find Any Info On How To Reflash To An Older Bios Can This Be Done On This Mobo ?
New BIOS:
http://usa.aopen.com/userdownload_Li...del=i975Xa-YDG
No wonder my HTPC hanged with the pvr-500 :D.
wow nice
Reflashing to an older version follows the same rules as flashing a new BIOS.Quote:
Originally Posted by heydo6
If however you can't gain acces to the BIOS itself you'll have to flash from Drive A, this is a different type of proess which would require you to create a Bootable floppy disc and save the old BIOS version and BIOS flash utility to that floppy.
If you can't get past that screen it seems as if the board is beginning to boot, but then has some problem, this is because the flashing process has changed settings, such as RAID which may need to be re-configured. Simplest thing, borrow or find an old HDD and use it to boot. There could be another reason why flashing the BIOS may have done this in fact I'vce had this problem recently with an Asus M2N32SLI. I flashed the BIOS and the system wouldn't run past the same screen your discussing except for Asus. I found out the operating system had become corrupted and I had to boot from the removable drive and re-install the OS. The data on the drive remained in-tact because I didn't format the drive I clicked where it stated Leave Files in-tact, re-installed the operating system and everythng ran fine.
Here's a link to AOpen eForum