Got a VX DFI NF4 cold boot issue try this

[Tony]

If you seem to have a cold boot issue odds are you have the vdimm off the 5V jumper.I have been testing RMA dimms for a while now and i have also noticed a cold boot issue, here is how i solved it.

http://www.xtremesystems.org/forums/...903#post849903

You need an adjustable PSU or a 3.3V sence line mod but it worked for me, dimms that will not boot together suddenly do, and work fine.

I am running 3.6V on the 3.3v line which gives me 3.5v in bios or so for vdimm.

give it a try, report what you find here.

[Anakin_Skywalke]

Thanks a lot m8. Will try that right now!

[Ubermann]

It solved all sticks ?

[Anakin_Skywalke]

Nope,nothing... still the same. Tested with 2.17 bios and 510-2 but still the same. In 510-2 tried both orange and yellow slots but to no avail. The voltage through the RAM is now 3.4V running off the 3.3rail which is now 3.5V

[ADM]

Doesn't solve my cold boot problems.

[Tony]

There is no way the ram is causing a cold boot, it has to do with the boot order in bios or the board its self. I tested 30+ dimms here and swapping to this method got me a boot every time without issue where off the 5V jumper i did see the odd issue.

You need to try at stock speeds and see if the board still cold boots, if not you have an overclocking issue and not a cold boot issue.

[Anakin_Skywalke]

Nope,no overclocking issue here. Tbh, my setup has been working for about 2 months this way and suddently... pfff... cold boot issues. It might work with two sticks from time to time but no consistency.. I will investigate into this matter more thoroughly shortly.

[bachus_anonym]

Can you guys try something for me, please? Those of you that have that issue...

Go to "Genie BIOS Setting" and manually change "LDT/FSB Frequency Ratio" to x2, istead of AUTO or whatever else you used to have it set at. Post here with a result.

Thank you!

[ADM]

Well it's only one of my sticks that has the problem - the other is fine. Also the one stick that is bad boots fine under a NF2 system just it shows up as 256MB only. I've never pushed the sticks far at all and I can't even boot at stock settings.

[ADM]

Can you guys try something for me, please? Those of you that have that issue...

Go to "Genie BIOS Setting" and manually change "LDT/FSB Frequency Ratio" to x2, istead of AUTO or whatever else you used to have it set at. Post here with a result.

Thank you!

Okay I'll try that just now. Why did this trick work with you?

[bachus_anonym]

Okay I'll try that just now. Why did this trick work with you?

Well, I'm not sure If that helps with your cold boot issue, but It helped me with my Winchester, that has some sort of cold-bug. I have not seen that on air.
I have always had LDT/FSB set to AUTO. On air I made most of my mem speed records, way up there above 300MHz.
Then when I slapped phase-change on it, everytime I restarted the system it would just die. I had to turn off the cooler for the system to start up, after temps went up. Then I set it to x3 and got lock ups in Windows.
Finally I went to x2 and it now "cold-boots" and "warm boots" everytime, 10 out of 10 tries.

So maybe it could help with cold boot issues you guys are having, just a thought. Might not work, but still worth a try.

[Anakin_Skywalke]

Still the same. Tried 2x (was sitting at 3x but though,what the hell...) but still no boot with two sticks. The most alarming thing imo, is that while the setup works flawlesly for some time (same bios same settings,etc) suddently it doesn't boot... if it does however,everything is back to normal...

[ADM]

Nope didn't work for me either.

[RAMMIE]

If you seem to have a cold boot issue odds are you have the vdimm off the 5V jumper.I have been testing RMA dimms for a while now and i have also noticed a cold boot issue, here is how i solved it.

http://www.xtremesystems.org/forums/...903#post849903

You need an adjustable PSU or a 3.3V sence line mod but it worked for me, dimms that will not boot together suddenly do, and work fine.

I am running 3.6V on the 3.3v line which gives me 3.5v in bios or so for vdimm.

give it a try, report what you find here.

Why sould I have to run my 3.3 so high when I' pulling of the 5 rail?Seems that you're asking for more trouble running off 5 rail and have to have 3.3 so far out of spec. Will my PowerStream 520 tolerate those requirements?

[OzSnoal]

bigtoe, great to know that you guys are working on it. Wonderful!!

Something I would like you to try, take some of your 'cold boot' problem ram that gets fixed with the 3.3V - 0.1V mod.
Let's use PC4000 VX as an example.
- Make sure that your CPU 'likes' running at at least 250MHz FSB(after all the selling point of pc4000VX)
- Make sure you can get the cold boot problem @250MHz FSB 1:1 ram
- Do your mod thing, run it for a few days, or even better use it as your system ram in the DFI board.
- Shut the machine down, unplug the power from the wall socket
- Wait 30 seconds, plug it back in - do you still power up?

[vrtn]

Thats exactly the error i'm also getting, when i power off the pc, pull the cord out, put it back in it gives long beeps, indicating a memory error (i believe).

Tested all kinds of memory and other things, the only real "solution" I found until now is removing the battery for 45 mins (no less), put it back in and power up. Then everything works like a charm again, memory is nothing wrong with. Can run memtest flawlessly @ 11x 248 @ 3.2v.
Memory also runs smooth on other pc's...

I now believe it could be my CPU, so I ordered a 3000+ venice, I'm gonna get it in a few hours, will let you know whether it is the cpu or the board.

The trick didnt work for me either..

[ADM]

Thats exactly the error i'm also getting, when i power off the pc, pull the cord out, put it back in it gives long beeps, indicating a memory error (i believe).

Tested all kinds of memory and other things, the only real "solution" I found until now is removing the battery for 45 mins (no less), put it back in and power up. Then everything works like a charm again, memory is nothing wrong with. Can run memtest flawlessly @ 11x 248 @ 3.2v.
Memory also runs smooth on other pc's...

I now believe it could be my CPU, so I ordered a 3000+ venice, I'm gonna get it in a few hours, will let you know whether it is the cpu or the board.

The trick didnt work for me either..

It's not the CPU - I had the same problem I got a new 3700+ and nothing changed. Also the battery trick worked for me too, for about a week. Now the stick won't boot at all in this machine.

[Wingz]

times i get beeps when cold booting is:

1. Turning off psu
2. when pc is off and then changing hardware or even plugging in a ps2 keyboard into the port.
3. after a bsod (being see how high i can clock my SD) and shutting down pc.

the only way i can get the stick to work now is to have my pc running for 2 hours and then shut it down and insert the stick, then amazing it boots.

[PCcrazy]

Mine is solved by increasing the vcore, my system is stable at 1.55v but everytime i turn off the rig it wouldnt boot anymore. Worse is, i have to use jumper and sometimes switch off the psu in order to boot. So what i did was, i increase vcore to 1.65v and guess what? cold boot issue solved...

[vrtn]

It's not the CPU - I had the same problem I got a new 3700+ and nothing changed. Also the battery trick worked for me too, for about a week. Now the stick won't boot at all in this machine.

indeed, got a new venice in it now (cbble 0512 dpaw low batch) but it won't boot

Gotta wait 45 damn minutes again!

Will test my memory (ocz vx) in another pc tonight... i bet it boots the first time

[OzSnoal]

vtrn - you may not have to go through the 45 minute wait, try this.

Remove the stick closest to the processor.
If it does not boot, clear CMOS for 1 minute.

If it powers up, change ram timings to 3-3-3-8, voltage 3.2V, FSB 200
Save these settings to your CMOS reloaded. Save to CMOS and shut down.

Reinsert the 2nd stick - hopefully you boot up. Then up your ram timings and FSB. Save these to a CMOS reloaded entry as well - you'll get to use them alot

[vrtn]

vtrn - you may not have to go through the 45 minute wait, try this.

Remove the stick closest to the processor.
If it does not boot, clear CMOS for 1 minute.

If it powers up, change ram timings to 3-3-3-8, voltage 3.2V, FSB 200
Save these settings to your CMOS reloaded. Save to CMOS and shut down.

Reinsert the 2nd stick - hopefully you boot up. Then up your ram timings and FSB. Save these to a CMOS reloaded entry as well - you'll get to use them alot

Thanks for these tips, will try them first thing tomorrow. I know it is a dimm3 / 4 problem, figured that out some time ago. With 1 stick in one of the upper dimm slots, it booted if I recall right...
My solution until now has always been: Keep the PC on! Hope this will work for me, then I can turn my PC off without having to wait 45 mins every time.
But it's not a real solution, is it...

Anyways, I will try this tomorrow, for now I'm playing with my new Venice :>
It's a really nice chip (see here the score is bad for the mhz i know, didn't fine tune the ram yet.)

[Ubermann]

3-3-3 might be a bad idea ?
Does VX boot at cas 3 ?

[OzSnoal]

Yes. Well, mine does. Couldn't get it up at 2-3-3 (which it used to). So then I tried 3-3-3 which booted me up.

[ADM]

3-3-3 might be a bad idea ?
Does VX boot at cas 3 ?

Yep my VX has booted at cas 3; I didn't need to use it though. I could use the timings 2-3-3-7 and that worked for me.