View Full Version : D820 blew my PSU... Again...
Martijn
03-10-2007, 07:30 AM
Yes... I hate them badly now :mad:
I'm sure lots of you still know the thread I posted some months ago, when I had to resolder my P4 connector on the mainboard, due to a burn.
This time it was more serious... I was at a lan-party, just set-up my system and everything else. Nothing wrong, started up CoD2, system got the load of the X1950pro as well and it was 'poof'. System off, no smoke, but a burnt smell from the PSU.
I opened the thing up and the first I thought of was that the fuse had blown. After looking into it, it was indeed gone, so I replaced it with one of my other systems I brought, hoping that it would work afterwards, as there couldn't have been any shorts in my system whatsoever. The mains would've shut off. When I looked to my ghetto P4 connector (16A wire :cool:) I saw that the 12v wire had indeed burnt a little :eek:, the green/yellow wire was brown, but not black as before. I assumed that the fuse had already taken some beatings before this happened, due to wear.
Back to my story. I had replaced the fuse, kept the PSU lid open and put the power cord in. Then I pressed the power button. Nothing at first... Then, suddenly, my system went on, bootscreen was visible, and I thought 'yes, it is still working', but it had already shut off with a loud bang, sparks and smoke from the mosfet area, which I saw later from a close inspection. PSU gone, due to a 12v overload from an overclocked D820... 450W OCZ Modstream which I had worked so hard for and cost me €149 1.5 years ago... Gone...
DAMN INTEL!!! I HATE YOU ALL!!! :mad: :mad: :mad: :mad:
/rant
P.S. Pics coming up soon, need to clean up after the lan (200m cabling, switch, 2 entire set-ups and T7900 was with me). Aaarghh...
dinos22
03-10-2007, 07:40 AM
well get a proper PSU and it won't happen :D
Martijn
03-10-2007, 07:46 AM
well get a proper PSU and it won't happen :D
Shut up, it was a proper PSU :p:... I'm not like you guys, that I can afford a Q6700 and Dual 8800GTXs every month. Was one of the best of the affordable ones, the D820s are just crazy... :slapass:
[XC] hipno650
03-10-2007, 08:41 AM
wow that sucks man!!! you need to get your self a gamexstream 700watt to handle that pentium:D but ya the only cpus that i have had blow psu's are pentium D's i built a pentium D 940 (even the 65nm version) and a 7600gt and 2 HDD's on an antec 350. and guess what system hangs at start up. system freezes at start up a bit of work inside system still hangs, i start to smell the burnt electronics smell :smoke: i turn the system off. then inspect the psu and sure enough it was done. so i put in my old antec 450 and things are fine after that. but to me surprise the 350 still worked on lower loads and could handle my opteron 148 at 3ghz and a 7600gt:D
[XC] riptide
03-10-2007, 08:44 AM
Shut up, it was a proper PSU :p:... I'm not like you guys, that I can afford a Q6700 and Dual 8800GTXs every month. Was one of the best of the affordable ones, the D820s are just crazy... :slapass:
Hey Martijn? You should try bring a Pent D 945 to >4Ghz! The Heatsink (Evo 88) screws into the motherboard are so hot, I can't touch them for long.! A 350W Antect that runs my DX at full load (3.15Ghz) won't work on the 945 once I up the voltage by the slightest amount. I'm just waiting for something to blowup real soon.
WesM63
03-10-2007, 09:02 AM
Dang, that sucks. I hope this D945 I have at 4.6ghz don't blow up my brand new PSU.. then i'll be pissed. (750w quad silencer)
[XC] hipno650
03-10-2007, 09:18 AM
Dang, that sucks. I hope this D945 I have at 4.6ghz don't blow up my brand new PSU.. then i'll be pissed. (750w quad silencer)
i don't think you have anything to worry about with that psu:D
Martijn
03-10-2007, 09:46 AM
Well, 750W might be a little low for those things :p: /jk
You'll be fine :)
Martijn
03-10-2007, 09:48 AM
Hey Martijn? You should try bring a Pent D 945 to >4Ghz! The Heatsink (Evo 88) screws into the motherboard are so hot, I can't touch them for long.! A 350W Antect that runs my DX at full load (3.15Ghz) won't work on the 945 once I up the voltage by the slightest amount. I'm just waiting for something to blowup real soon.
I think you forgot that this thing almost got a 16A wire blown up... That's 192W dude, for a 4-pin ATX connector :stick:
[XC] Teroedni
03-10-2007, 09:51 AM
Back to my story. I had replaced the fuse, kept the PSU lid open and put the power cord in. Then I pressed the power button. Nothing at first... Then, suddenly, my system went on, bootscreen was visible, and I thought 'yes, it is still working', but it had already shut off with a loud bang, sparks and smoke from the mosfet area, which I saw later from a close inspection. PSU gone, due to a 12v overload from an overclocked D820... 450W OCZ Modstream which I had worked so hard for and cost me €149 1.5 years ago... Gone...
DAMN INTEL!!! I HATE YOU ALL!!! :mad: :mad: :mad: :mad:
/rant
P.S. Pics coming up soon, need to clean up after the lan (200m cabling, switch, 2 entire set-ups and T7900 was with me). Aaarghh...
umm
You actually opened the psu instead of rmaing it:confused:
Martijn
03-10-2007, 09:57 AM
umm
You actually opened the psu instead of rmaing it:confused:
I would have ff I hadn't replaced the 4pin ATX connector... I have blown that one as well, 2x6A, now a single 16A wire...
Look here (http://xtremesystems.org/forums/showthread.php?t=122923)
[XC] Teroedni
03-10-2007, 10:07 AM
ohh i can feel your pain:(
I got an modstream too
It is a great Psu. More stable rails gave me a 100mhz gain on an opty(Going from Thermaltake tr2 to Ocz Modstream 650)
So what psu are gonna run the 820 now?
Martijn
03-10-2007, 10:48 AM
ohh i can feel your pain:(
I got an modstream too
It is a great Psu. More stable rails gave me a 100mhz gain on an opty(Going from Thermaltake tr2 to Ocz Modstream 650)
So what psu are gonna run the 820 now?
Probably a 300W standard OEM PSU until I can afford a decent one.. All stock, undervolted, 2HDs less, no opticals, no X1950 (onboard instead), no PCI cards, no USB, etc... Should be able to cope with it.
[XC] riptide
03-10-2007, 10:49 AM
Dang, that sucks. I hope this D945 I have at 4.6ghz don't blow up my brand new PSU.. then i'll be pissed. (750w quad silencer)
What setting shave you got for that bad boy? Vdroop mod? Volts? Load temps?
meshmesh
03-10-2007, 11:38 PM
.......When I looked to my ghetto P4 connector (16A wire :cool:) I saw that the 12v wire had indeed burnt a little :eek:, the green/yellow wire was brown, but not black as before....
Not again! :eek: May I ask: what is the TDP, stock speed and Vcore of that CPU, and what are the OC speed and vcore settings?
...Then, suddenly, my system went on, bootscreen was visible, and I thought 'yes, it is still working', but it had already shut off with a loud bang, sparks and smoke from the mosfet area, which I saw later from a close inspection. PSU gone, due to a 12v overload from an overclocked D820... 450W OCZ Modstream which I had worked so hard for and cost me €149 1.5 years ago... Gone...
I was under the impression that those PSUs have OC/OP protection built in them that prevents overload. So if the +12V rail is overloaded it would safely disconnect. Why did it keep going till it blew it's mosfets? This is dangerous. Makes you wonder whether that PSU is any good.
Martijn
03-11-2007, 12:08 AM
Not again! :eek: May I ask: what is the TDP, stock speed and Vcore of that CPU, and what are the OC speed and vcore settings?
TDP=95 average @ 2.8Ghz, 1.25v... Overclocked 1.4v @ 3.4Ghz (does more, limited by ram), which would get the 'TDP' to ~160 (measured overclock/non-overclock)
I was under the impression that those PSUs have OC/OP protection built in them that prevents overload. So if the +12V rail is overloaded it would safely disconnect. Why did it keep going till it blew it's mosfets? This is dangerous. Makes you wonder whether that PSU is any good.
AFAIK they only have overvoltage protection (OVP) and it wee the powerstreams that had the above function as well :)
nn_step
03-11-2007, 12:14 AM
please excuse this stupid question but PSU are you using?
meshmesh
03-11-2007, 01:24 AM
please excuse this stupid question but PSU are you using?
He mentioned in his first post:
....PSU gone, due to a 12v overload from an overclocked D820... 450W OCZ Modstream which I had worked so hard for and cost me €149 1.5 years ago... Gone...
It has a single 12V rail at 26A Should be Ok with the cpu alone. But I guess the X1950pro pushed it over the edge. And indeed, spec sheet (url=http://www.ocztechnology.com/products/ModStreamSpecSheet.pdf) shows NO rail overcurrent protection. A bit of a surprise for €150 PSU!
nn_step
03-11-2007, 01:40 AM
He mentioned in his first post:
It has a single 12V rail at 26A Should be Ok with the cpu alone. But I guess the X1950pro pushed it over the edge. And indeed, spec sheet (url=http://www.ocztechnology.com/products/ModStreamSpecSheet.pdf) shows NO rail overcurrent protection. A bit of a surprise for €150 PSU!
thank you, according to Mr. Calculator: The system load should be 316w assuming stock of which 294w (24.5A) would be solely on the 12v line So it isn't much of a surprise that a minor overclock would push it over the edge like that
Nosfer@tu
03-11-2007, 01:57 AM
Same :banana::banana::banana::banana: happend to me, It was a Antec 550 Watt and they blow up :(
It is NOT you cpu, it is a :banana::banana::banana::banana:TY psu :fact:
And it will happen again, this time you will just kill even more!
Martijn
03-11-2007, 02:43 AM
Same :banana::banana::banana::banana: happend to me, It was a Antec 550 Watt and they blow up :(
It is NOT you cpu, it is a :banana::banana::banana::banana:TY psu :fact:
And it will happen again, this time you will just kill even more!
Errr... That was just the reply I needed :p:
It is NOT you cpu, it is a :banana::banana::banana::banana:TY psu :fact:
And it will happen again, this time you will just kill even more!
Please remember it was one of the best PSUs available at that time, only the Powerstreams were better... It was from the days that OCZ was still king. And I think you never had a D820? Those things are rated up to 120Amps at stock :slap:
This CPU gets up to 65C on a CNPS9500 with a 3k rpm 120mm Delta behind it, you can't even touch the VRM heatsink :fact:
nn_step
03-11-2007, 03:03 AM
Errr... That was just the reply I needed :p:
Please remember it was one of the best PSUs available at that time, only the Powerstreams were better... It was from the days that OCZ was still king. And I think you never had a D820? Those things are rated up to 120Amps at stock :slap:
This CPU gets up to 65C on a CNPS9500 with a 3k rpm 120mm Delta behind it, you can't even touch the VRM heatsink :fact:
umm I believe you mean Watts because it is feed by the 12v line which would make the power usage 12v*120A = 1,440w
Martijn
03-11-2007, 03:14 AM
umm I believe you mean Watts because it is feed by the 12v line which would make the power usage 12v*120A = 1,440w
120*1.4v = 168W ;)
nn_step
03-11-2007, 03:18 AM
120*1.4v = 168W ;)
true, technically we could be both be correct, Since I am measuring on the PSU connector and you are measuring at the processor. It's all semantics
Movieman
03-11-2007, 03:38 AM
Martijn my friend: Sorry to hear all this. I know how hard you work to get this stuff working.
I think your right in pulling the card.
Logic tells me that the PSU just isn't up to handling that load.
keep that system stripped down and even if someone dropped a 1000w PSU on your door today I'd think long and hard before I tried that setup again.
That board itself is probably weakened by what it's been through.
That's not scientific my friend but it's probably true.
Time to start saving for another board and psu I think.
Best of luck on this.
I think your system was fine with a low-end videocard.
Then you added an x1950pro which pushed the psu over the edge.
I would suggest to sell the cpu and upgrade to E4300.
Martijn
03-11-2007, 05:52 AM
I will first be looking into a cheap PSU to run my system, as the D820 won't sell for much money now, I think... And I will be keeping this board as well, but I guess I won't be saving up for a Dell 2407WFP anymore :p:
[XC] riptide
03-11-2007, 08:16 AM
I will first be looking into a cheap PSU to run my system, as the D820 won't sell for much money now, I think... And I will be keeping this board as well, but I guess I won't be saving up for a Dell 2407WFP anymore :p:
Hey Martijn. I might be selling this 945 soon. Any interest?
oh man its so :banana: what happened to your rig :S . If it helps: I had a psu, a mobo and a RAM stick f up
Martijn
03-11-2007, 09:02 AM
Hey Martijn. I might be selling this 945 soon. Any interest?
I'd love to have it, but it's no use for now... I'll first see if I can get the thing up and running again, I hate it to smuggle my parents' T5500 to my room everytime to get it crunching :p:
Fuggers' ram would help as well!! *hint hint :p:
NickS
03-11-2007, 10:44 AM
Your rig was probably drawing 400w under load, I can see that. My Conroe rig with an X1900GT Rev1 (draws more power) @ 700/855 touches 370w. Oh yea, E6300 @ 3.5 / 1.48v real.
Regardless, the Modstreams were never good units... they can't hold a candle to a powerstream.
meshmesh
03-11-2007, 12:35 PM
TDP=95 average @ 2.8Ghz, 1.25v... Overclocked 1.4v @ 3.4Ghz (does more, limited by ram), which would get the 'TDP' to ~160 (measured overclock/non-overclock)
What is the situation with the heavily OCed Q6600s. TDP 105W per spec (http://processorfinder.intel.com/details.aspx?sSpec=SL9UM). Wouldn't this be pushing the 4-pin connectors too?
Compared to the C2Ds at 65W spec, there is a big difference in the starting point. Makes you wonder a bit.
Martijn
03-11-2007, 12:38 PM
What is the situation with the heavily OCed Q6600s. TDP 105W per spec (http://processorfinder.intel.com/details.aspx?sSpec=SL9UM). Would this be pushing the 4-pin connectors too?
Compared to the C2Ds at 65W spec, there is a big difference in the starting point. Makes you wonder a bit.
AFAIK it are the VRMs that can't keep up and suck power like mad on older boards...
Martijn
03-11-2007, 01:09 PM
OK... I have decided... Going to get two cheaper OEM PSUs I have here (400+ 250), lower my overclock (voltage if possible) and run the rig that way until I can get myself a decent PSU.
[XC] ruane
03-11-2007, 02:50 PM
Sorry for your loss, and I hope the LAN Party was OK even after that had happened! Hope you can get those Dual PSUs up and running so you can run WCG and game again on it!
Sounds like the P4 Connector didn't do it much good, and the X1950Pro was the last straw, and it couldnt cope with the demand! Good luck with your next PSU, hope you don't have any more bad luck!
Ruan
Martijn
03-12-2007, 05:47 AM
OK... Going to pick up some old PSUs this afternoon.
Will 12A be enough for powering a part (PCIe connector) of the X1950? It's an old server PSU that has a 30A 3.3v rail and 40A 5v, but only 12A on 12v... It's not compatible with ATX either, as I pulled it from a DEC Alpha server. This is what I'm planning to do:
250W PSU:
Mainboard (and thus CPU/GFX)
12v 4-pin (if this doesn't work I'll be putting in a 3rd PSU, has only 8A on 12v)
400W PSU:
GFX
DVD/DVD-RW
Hard disks (4)
I'm still thinking of using a 3rd PSU for the 4-pin connector, as I will end up with only 16A, less than I had before... On a 3rd one, dedicated for 4-pin I am able to get it up to 24, which will be enough, as I'm lowering my voltage from 1.4 to 1.3 or even less...
I'm sure the system will run fine without load on 2 PSUs, but I think you understand I want to get this thing crunching again :)
Movieman
03-12-2007, 05:51 AM
I'd stay with the onboard graphics till you have a good psu in hand.
The old server models had crap for 12v..
Martijn
03-12-2007, 07:54 AM
I'd stay with the onboard graphics till you have a good psu in hand.
The old server models had crap for 12v..
I'll stick to an X1300 then... I do want to play some games :p:
[XC] riptide
03-12-2007, 08:00 AM
Pics!!!!
Martijn
03-12-2007, 08:45 AM
Making them right now :)
Martijn
03-12-2007, 08:59 AM
Going to have dinner, pics will be loaded in this post after ~30 mins :)
EDIT: Can't get the pics off my camera as I can't use the D820... Will have to try on the lappy tonight.
Martijn
03-12-2007, 12:55 PM
First: the homemade 4-pin ATX connector. 16A wire. FYI: BOTH connectors are supposed to be blue, and yes it's the 12V line that's burnt. Got some more pics if you want.
http://img50.imageshack.us/img50/1366/img1299reshh9.jpg
Second: blackened spool due to excessive smoke from the mosfets
http://img355.imageshack.us/img355/9131/img1302resri3.jpg
Third: carbon residue on the back of the PSU, after I removed the mosfets
http://img355.imageshack.us/img355/1264/img1303reswx8.jpg
[XC] ruane
03-13-2007, 02:09 AM
That looks pretty cooked, sounds like a dodgy MOSFET and the fact that the D820 was pulling so much power, just couldn't handle it! Good luck with the Dual PSUs!
[XC] riptide
03-13-2007, 04:11 AM
Hardcore man! Nice one Martijn! Something tells me that it may be related to your homemade 4 pin solution. Always make sure you have a very good solder point! And that it doens't cause resistance!
EDIT: Well took a while for all the pics to load. I'll take that all back. look at that coil!
Martijn
03-19-2007, 06:55 AM
System is up and running again!! No X1950 added yet, might try that soon on a third PSU :p:
ok , that's good to hear :D
For a moment i thought you blew your PSU (s) again
Martijn
03-19-2007, 07:44 AM
Jaco;2078108']ok , that's good to hear :D
For a moment i thought you blew your PSU (s) again
Nah, no problem... I'd just pop in the X1950 and switch over to 1.4v again :p: