Cold boot issues on DFI, i need testers

[esdee]

one of my DIMMs (actually the best Dimm i have) is half dead for more than 5 months

actually the dimm CANNOT post in single channel (one dimm) in Dimm2
my other dimm boots no problem

so what i do is this (works every single time)

boot with the fully working dimm in dimm2, wait till it posts ok then power off the board
WITHOUT turning the PSU off i put the second (half dead dimm) on the dimm4 then i power on the board --> everything ok.

if a PSU power-off is involved i get cold boot and i have to do the above proc all over again...

hope it helps somehow

[EMC2]

I cant seem to get the 3.3v trick work so well. Its not nearly as stable as the 5v.

FYI...you need to keep the 3.3V rail ~0.25V above the Vmem BIOS setting

Peace

[Crazykooter]

Well my utt came in yesterday and I have had good luck with it till the power went out. I couldnt figure out what the heck to do since neither stick would post. I put my tccd in and it posted right up. Came here read some and decided to flash back to 510-2 bios for hellfires. Didnt help. So I put tccd back in and it posted. I then went into the bios and ran the vdimm up to 3.2v which was max since I had just switched over to the 3.3v trick again. Turned off the power without using the PSU switch. Put in the 2 sticks of utt and it booted. I have no idea whats goin on here but it has to be one of the strangest things ever for a motherboard to do. I am also using yellow slots now so I hope I dont have to do this again. DO have a question tho. Why is it both sticks for me when everyone else is reporting one bad stick ? Doesnt make sense.

[EMC2]

Because in this case, you do not have any bad sticks... just ones that won't pass POST @ SPD timings with low Vmem

Peace

[Crazykooter]

Ok since I dont have a bad stick and its a timing issue and what not then when I reset the bios it should be fine. It just happened again when I went to up the vdimm to where it was. It hasnt been a issue till my ciruit breaker kicked today. Now its just messed up. I just tried what I did in post above and it didnt work. I am not on tccd again. I have tried every sudjestion posted here and I still am having issues. Makes me wonder if its a ram issue or a motherboard one. Main thing that gets me is that its putting 2.7v to my ram after the fail which plenty of volts to run this stuff at 200 after a bios reset. Also I am curious why the yellow would be safer then the orange ones. If this is true then its a DFI woops IMO. I might just go back to the 5v side where I was when it was working fine earlier. I am also going to throw these same sticks into my other dfi board and see if they post right away or not.


EDIT: Ok they didnt post in other board either so it means I have 2 bad sticks or something. Damn this pisses me off.

[EMC2]

Ygpm....

[Crazykooter]

Ok just for more info. I couldnt get the utt to work again since last post. So what I did was get pissed off and try a work around if I could. Again the only way I was able to get them to post was with tccd bios to 3.2 then reboot shut down as soon as it beeps. Then put in twinmos and boot. It works. Now I am affraid to reboot to see the fsb back up to where it belongs. There has to be something with this ram that the board doesnt like on boot up. I know voltage is said to be the cause but utt should post even at 2.6v to it at laxed timings. But I guess I could be completly wrong here. I was over reading at DFI forum and it seems more of mess over there then here on rexolving the issue. Waste of time really. Any sudjestions on what I should do here ? I would hate to sell off ram which I know doesnt do what it suppose to with these boards. also is twinmos ch-5 utt ?

[metro.cl]

any updates im about to buy this mobo plus some twinmos utt, but seeing all of this has hold me back

[OzSnoal]

Cold boot problems can be described in the following ways:

And can be best seen by first running your PC for 5-10 minutes before doing the below.
1) Shutdown the PC, remove AC, reinsert AC, and cannot POST. (3 LED's on).
2) Shutdown the PC and without removing AC, cannot POST. (3 LED's on)

Initially I only had case 1 and eventually ended up having case 2 problems as well.

There are a variety of ways to attempt to get your system to boot.:
http://www.bleedinedge.com/forum/showthread.php?t=10644

OR

http://www.dfi-street.com/forum/show...&postcount=137

Personally one of my sticks causes the boot problem, it also needed high volts to run at the recommended timings, I am now running single stick at 2-2-2-8, 250MHz at 3.3V. With both sticks I needed 3.6V.

[CometMan]

guys i discovered now that many ppl has the same prob as me anyway here is what i writed in another thread

Guys i am having problems whit the SLi-DR i use my cpu at 11x255=2805 whit ocz 4000 vx at 1.5-2-2-5 3.4v the thing is my board once a week doesn`t boot, the power led keeps flashing, and i get a long bip, the diagnostic leds are all on (3), the only solution is to clear cmos but sometimes i take 2 days to reset this bios, i move the cmos jumper to pin 2 and 3 remove the baterry, remove the power cord and lol 5 hours later it might reset, once i get the bios reseted things get back to normal, at least for a week stable, and the again stops booting, i tried the latest bios oficial on the dfi homepage, any sugestions?!?!

please Help

another thing i managed to boot up the system whit only 1 dimm in the orange slot, the farest to the cpu (but my system is all .. up )

what should i do?

[tjj]

anything??

[Crazykooter]

This lack of info on what we are to do is getting crazy. The only thing I hear to do is buy tccd which I have 2 sets and both of them are jacked now. Poss due to this board. My utt wont post all now neither stick. I am bout to go crazy here. No one seems to have a clue about whats going on here.(esp me)

[Nugz]

hey , atleast they know there's a problem, insted of not even acknolage'n it.

they will fix it. then i will be RMAing my VX. till then, i try not to ues my DFI for now.

Peace Nugz

[politenessman]

Not sure if this is classed as a cold boot issue but here's what happened to my DFI rig just an hour ago:

My rig was working fine at 255HTT @ 1.47v with the 180 divider (was running prime95 & 3DMark03 loop beforehand & area around VC was getting hot so I decide to add a 12cm fan there,,,

Turned off PC to install a 12cm fan (to help airflow around VC)... Shut down rig, turn off switch on PSU (OCZ 520w) & proceed to install 12cm fan...

Installation done so I then proceed to turn on my rig... Get's to the part where XP is loading & then reboots constantly... WTF...

That's 3 or 4 times that's happened to me, the last few times were because I replaced the CPU & then had to reinstall XP because of this problem where I could not get into XP no matter what I did...

Luckily this time I was able to flash my bios & enter Windows without having to reformat to get anywhere...

It;s damn annoying as I have lost my OC & am back to running my CPU/Ram/VC back at default clocks... Have yet to try to OC it again...

Is this classed as the "cold-boot issue??"

Minh

this exact sequence happens to me like once a week. the only difference is im not using vx, but g.skill la. shuffling the ram around doesnt help. both sticks will usually boot to at least desktop singly. i dont use the 5v jumper. i have never run the ram higher than the 2.8v setting.
the other night i ran a 32m super pi @ 318x9, then while i was reading email 15 minutes later it blue screened and would only reboot over and over right at the splash screen. none of my usb devices (keyboard, mouse) have power during boot when this happens, forcing me to use a ps2 keyboard to get into bios. i recently switched from a truecontrol 550 to a 600 powerstream. it happened with both psu's.


3500 rev e xp90/tornado
ultra d 414-3
850xt
600 powerstream
2x256mb g.skill

[Bourch]

I have the cold boot issue. No BSOD problems at least.
My mems are VX and I am experiencing the same problems with my USB keyboard
I have an OCZ Powerstream too (the 520w one)

[politenessman]

I have the cold boot issue. No BSOD problems at least.
My mems are VX and I am experiencing the same problems with my USB keyboard
I have an OCZ Powerstream too (the 520w one)

when your keyboard will not work during boot, unplug your power supply from outlet for a couple seconds. seems to reset something and usb works, altho you still wont boot into windows. i have had this problem while running at max, 318x9, 1.68vcore, 2.5/3/3/8, 2.85v vdimm, same problem running stock.this comes and goes. right now i have been running3-4 days no probs 9x310. same problem using 3500 rev e or 3500 winny 90nm. same prob using 256mb g.skill la pc4800 or pqi turbo 512mb stix. same prob evga 6600gt or connect3d x850xt. i have an old stick of corsair pc3500 v1.1 (bh5) i will try if i can find it.

[Bourch]

My ing problem is: unplug the psu = cold boot


I will have to cross my fingers every time I have to shut down my system. However, I run my pc for 24/7 and don't use to shut down it. I only reboot once a while and shut down for hardware upgrades, partys,... I can live with the cold boot issue but wish DFI could solve this bug.

[EMC2]

Bourch... have you tried unplugging then reconnecting your keyboard? Might work and not have to remove AC... I've had mice before that needed this trick

Cold boot is very fixable in BIOS...

Peace

[CometMan]

can i be a tester of new bios, im sick and tired of my computer this way
btw, any news about this problem?

thanks guys

[JoKeN9seven]

Hi,

I have also the cold boot problem. Every time when I disconnect my power supply I can´t boot the first time. I have to turn the computer off by pressing the power switch for ~3seconds. After appr. 3 times SOFT ON-OFF I can boot again.

Here is my HW spec:

DFI nF4 UT 5.10-2 BIOS
Twinmos Speed Premium A4TT UTT-CH
Revoltec Chromus II
A64 3000+ winchester

The rams are in the yellow slots. I can test a new bios if I get one.

thx.

[Bourch]

Bourch... have you tried unplugging then reconnecting your keyboard? Might work and not have to remove AC... I've had mice before that needed this trick

Cold boot is very fixable in BIOS...

Peace

It doesn't work for me

[dsumanik]

Ok guys we nee dto clear some things up here:

the cold boot issue is not related to peripherals you have plugged in:

if it was that easy we would all have this problem figured out by now.


it is related to:

ram type, and which slots they are in
voltage supplied to ram
which rail votage is supplied from

and

booting from a complete power off situation.

my board had BAD cold boot issues until i switched from UTT (ocz vx 4000) to generic kingston value ram and dropped my voltage to 2.8.

now that im within spec on tested modules...everything is fine.

but if i wanted stock performance, at 3338 timings i could have saved myself the few hundred extra dollars for a high performance rig!

I have been in contact with oskar wu about sending him my board for testing in this thread here

http://www.dfi-street.com/forum/show...819#post127819

however, he promised to send me a replacement "working board" but has not delivered yet.

[dsumanik]

My ing problem is: unplug the psu = cold boot


I will have to cross my fingers every time I have to shut down my system. However, I run my pc for 24/7 and don't use to shut down it. I only reboot once a while and shut down for hardware upgrades, partys,... I can live with the cold boot issue but wish DFI could solve this bug.

to warn you this is how it starts...likely your rig will degrade into a non working system like mine did, on two seperate sets of VX memory.

[Bourch]

As dsumanik, I have a VX Kit and Kingston value memory.


Yesterday I was running with the VX kit from de 3.3v rail with the jp17 trick and my powerstream 520w 3.3 line at 3.75. Vdim was set at 3.5 (plus ~0.04v overvolt) and dims where at orange slots. I tried to reboot but by mistake I shut down the pc. Then, I had ANOTHER cold boot. Now I'm running with kingston memory at stock.


I don't want to continue like this, so I'm asking myself about what to do. I was thinking about buying another nforce4 ultra with a booster (to supply at least 3.6v). I was thinking about buying the MSI K8N Neo4 Platinum but It seems to be not compatible with the booster. Therefore, I have two questions:

1.- Would a booster (on the DFI) be helpful to bypass the cold boot issue? The reason form my asking is that I have readen that the cold boot may have something to do with the vdimm the DFI supplies to the RAM just when it's powered on.

2.- If not, wich nforce4 ultra that can supply 3.6 vdimm (with or without a booster) should I buy? I want a good overclocker one that, even if it's not the best one, it has not any critical bug like this one.


Forgive me for the second question if it's a little off-toppic.

[Crazykooter]

As dsumanik, I have a VX Kit and Kingston value memory.


Yesterday I was running with the VX kit from de 3.3v rail with the jp17 trick and my powerstream 520w 3.3 line at 3.75. Vdim was set at 3.5 (plus ~0.04v overvolt) and dims where at orange slots. I tried to reboot but by mistake I shut down the pc. Then, I had ANOTHER cold boot. Now I'm running with kingston memory at stock.


I don't want to continue like this, so I'm asking myself about what to do. I was thinking about buying another nforce4 ultra with a booster (to supply at least 3.6v). I was thinking about buying the MSI K8N Neo4 Platinum but It seems to be not compatible with the booster. Therefore, I have two questions:

1.- Would a booster (on the DFI) be helpful to bypass the cold boot issue? The reason form my asking is that I have readen that the cold boot may have something to do with the vdimm the DFI supplies to the RAM just when it's powered on.

2.- If not, wich nforce4 ultra that can supply 3.6 vdimm (with or without a booster) should I buy? I want a good overclocker one that, even if it's not the best one, it has not any critical bug like this one.


Forgive me for the second question if it's a little off-toppic.

There is a guy at DFI-Street who tried the boost to see if it fixed the cold boot and it didnt. ATM there is the new abit board which vdimm goes to 3.55 but its very $$$$$$$$$$$$ and may not oc as well as DFI does. I am waiting for the release of the ATI board. I too get cold boots and its frustrating!!!!