Re: DFI P5VB3+ dead with bad caps and more...
Okkayy !
Thanks everybody for your help (and especially about stj...). Everything works fine now. It's stable and running an new-old Linux distrib on a brand new IDE hard drive (>32GB) ...
You're right about unlist / undocumented jumpers I've looked for that...
About PSU caps, I have ones like these inside :
[url]http://www.wasp.kz/raz/cap_02/viva_330mf-200v.jpg[/url]
I will keep the new 480w ATX PSU for this recapped mobo and keep the old AT PSU 230w for testing...
canal
Member
Last Activity: 01-12-2015, 09:45 AM
Joined: 11-23-2014
Location: Paris (IdF)
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Re: DFI P5VB3+ dead with bad caps and more...
Sorry, no handy digital camera for now as I only shoot film...
But, the outside of this "DAINTY" LC-230C PSU is much like this one :
[url]http://www.amazon.com/FSP-SPI-250G-SUBSTITUTE-PSE5-115-CI-001-PSE5-115-CI-016/dp/B001GLFKKC[/url]
Inside: except for dusts nothing wrong. No bump caps for example. Nothing burnt or smell burnt also ... Some caps seems not well sitting on the PCB a little space up exist between the cap and the board but seems normal.
As I've no picture of...Last edited by canal; 12-28-2014, 04:50 AM.Leave a comment:
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Re: DFI P5VB3+ dead with bad caps and more...
So it will be my last question as I've just boot an old Linux distrib on CD-ROM and everything work like before and even better than before. Thanks to this new CPU+Fan and new caps ! This old Linux recognize this K6-2+ as a K6-III but it's okay
So... For all these tests I've used a brand new ATX PSU thinking the old AT one was defective and make all that garbage but after looking inside it seems perhaps this PSU is still good as some of you suggest ...
Do you think it's worth reusing the old AT 230watt...Last edited by canal; 12-27-2014, 12:44 PM.Leave a comment:
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Re: DFI P5VB3+ dead with bad caps and more...
Hi again :-D
I've gone further about the fan problem (about 1) ... there is 3 pins on that connector.
1. Ground goes to ground as it is OK.
2. +12v doesn't seems to go anywhere ? No SMD around but 12v of that connector seems to be connected with 12v of AGP fan connector (multimeter test conductivity: yes) which souldn't be and isn't the case in real ...
3. Sense : don't know anymore about this fan RPM return signal ... where is it going ??
I've look closely to search for a cutted wired...Leave a comment:
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Re: DFI P5VB3+ dead with bad caps and more...
It's Rev C+ and it's already underclocked to 333MHz (like my old K6-2) but "recognized" as "Unknown-S CPU" ... bad thing.
So, finally I do what Majestyk suggest days ago : a BIOS update with a new CPU ! Was a) for me.
I was able to boot on a floppy (!!!!) bypassing the hanging BIOS by hitting F4 then flashing the BIOS under DOS : was a hard and scared job !!! Really.
With 2000's BIOS like the picture I speak about ... My new CPU is recognized now as "K6-2+" and...Last edited by canal; 12-26-2014, 09:37 AM.Leave a comment:
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Re: DFI P5VB3+ dead with bad caps and more...
Yes, I have found 2 for DFI P5BV3+ Rev C+ :
[url]https://fr.driverscollection.com/?file_id=14923[/url] from 1999 said to have Ultra DMA/66 instead of Ultra DMA/33 ... Is that possible !? And better K6-2 450MHz support.
[url]https://www.wimsbios.com/biosupdates/large-hdd-support/dfi/69[/url] from 2000 with 128GB HD limit (instead of buggy 32GB HD limit)
With picture for 2000 BIOS and K6-III : [url]http://s240.photobucket.com/user/GeorgeMan/media/POST_zpsf41fc778.jpg.html[/url]
But nothing said...Leave a comment:
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Re: DFI P5VB3+ dead with bad caps and more...
I tried unplugging and replugging AGP videocard but no. Nothing.
So, I have more clues ...
About 2:
I'm pretty sure it's my fault. I've bought and put a K6-2+ (note the "plus" after 2) not a K6-2 (without "plus"). This CPU is normally supported by my mobo and my BIOS (I have 12/30/1998 > 11/3/1998 I need). Information found here: [url]http://compatlist.k6plus.com/[/url]
But in fact, it doesn't work. I forget to say the CPU is recognized as "Unknown-S CPU at 336MHz"...Last edited by canal; 12-25-2014, 03:05 AM.Leave a comment:
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Re: DFI P5VB3+ dead with bad caps and more...
About 2:
^^^ In fact, there is just one ram (128MB) and just SiS6326 (videocard) and that's perhaps why it hangs ! All (soundcard, HDD, CDD, ...) is not re-mounted for the moment.
I've just found (5mn ago) a *really* clever tips ... just hit F4 and bypass this hanging step and it works !!! Can boot now (or I'm sure I will boot now).
Don't know why or what hangs but it could continue like that ... will investigate more.
About 1:
I'm now pretty sure that CPU temp was about 45°C (hard...Leave a comment:
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Re: DFI P5VB3+ dead with bad caps and more...
Anothers things :
1/ It is said in the latest documentation of the mobo I found that CPU fan should rotate when CPU temp is over 25°C which is my case now and fan still not move an inch !
I try the fan by myself again with 12v DC red and black nothing on yellow: it works (it is a brand new one for 4 euros but works).
Then I plug it into the AGP fan connector instead of the CPU fan connector and power up: it works again ! CPU temp lower to 32°C like that. AGP fan speed reported as 3333, 34xx,...Last edited by canal; 12-24-2014, 08:45 AM.Leave a comment:
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Re: DFI P5VB3+ dead with bad caps and more...
No it's hot here (inside the house!)
After 2-3 minutes of power up machine the CPU temp has now reached 45°C and up to 51°C. I precise that I use this K6-2+ 450MHz *underclocked* at 333MHz ...
Yes, saw that. This is the CPU hottest point. Works perfectly I think.
But now, it seems another harder / worst problem arise as I can't reach the boot-up process. BIOS hang before. Hope it's software (e.g. BIOS setting) not hardware failure.
Be back for that....Last edited by canal; 12-24-2014, 02:57 AM.Leave a comment:
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Re: DFI P5VB3+ dead with bad caps and more...
No, nothing burnt here ... But if you look closely to the picture I sent there is almost nothing just near the CPU fan connector (it is the one between 2 ISA slots right near the flash BIOS - bottom of the board) - no SMD.
There is an utility on Windows for this mobo which seem to start the fan ... I will checked that since I can boot something but I need futher testing (and reassembling the whole machine) before...
I'm pretty sure that 10°C is very cold for such CPU ... The alarm is set to 70°C and CPU...Leave a comment:
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Re: DFI P5VB3+ dead with bad caps and more...
So, I've mounted the new CPU fan I've bought and received ...
And.... CPU fan is still asleep ! Nothing to worry ... BIOS indicate 10°C for CPU and 0 RPM for fan (normal - it's stopped !).
I'm sure everything works normally but will do intensives tests with cards (PCI + ISA) and peripherals now... Perhaps will put my AT (not ATX) PSU back if all OK.
Also, I prefer a brand new fan that surely works than a dusty one that will ruin the CPU in case of higher temp ...
Even BIOS datas (saved...Leave a comment:
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Re: DFI P5VB3+ dead with bad caps and more...
Oh Thanks ... I've just ordered the cheapest I found on amazon and is very close to the one I had before (now dead)... but it is and was sleeve bearings ... All seems to consume less (0.xx A or 1.xx W) than before ... Don't know about others specifications.
It's a 60x60mm mounted on a really huge (or only big compared to nowadays) heatsink ...
But some reports that using only the heatsink without a fan with a K6-2 (and I've bought a K6-2+ 2.0v so it's like a K6-III) is not enought ! And the K6-III tend to be warmer...Leave a comment:
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Re: DFI P5VB3+ dead with bad caps and more...
So, ... it POST !!!!!! (yes really - good news !)
But I have to immediately stop it because the CPU fan was asleep / not running. Don't know if it is normal or not. So, by security stop everything.
Then, I tested the CPU fan separately with 12v on red & black (nothing on yellow).
The fan start then stop ... There was little dust I remove. Then start then stop again ... seems to malfunction and after 4-5 minutes of tests: smoke !
Now, the CPU fan is dead. So no news before...Leave a comment:
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Re: DFI P5VB3+ dead with bad caps and more...
Here's some news ...
... as I've just received a cheap new AMD K6-2 (bought from eBay) by post few hours ago. It's sold as NEW (neved used before) for only $9.95 + S&H ...
@stj: I've located the cap for 3.3v between AGP and one PCI slot ... check and found 3.3v okay !
Then, I've changed from 2.2v to 2.0v as my new K6-2 ask for that by DIP-switch and check again the caps I changed ... and now found 2.0v (instead of 2.2v)... seems good !
As Iti said, I think there's no much...Last edited by canal; 12-15-2014, 11:08 AM.Leave a comment:
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Re: DFI P5VB3+ dead with bad caps and more...
"test-points are the capacitor wires on the bottom of the board." !!!
OK... As each "-" go to ground and all 4 caps are put together "-" to "-" and "+" to "+" ... there's only on solution :-D So I've test between one "+" of one new caps I've changed and between ground and got ......... 2,22volt ... seems to be stable ! It's exactly what I expected to have as the board is configured by DIP-switch to deliver 2,2 volt !!!
Good news...Leave a comment:
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Re: DFI P5VB3+ dead with bad caps and more...
The best picture I found is this one : [url]http://www.amoretro.de/wp-content/uploads/2011/12/DFI_P5BV3+_REVB1_VIA_MVP3_Super_Socket_7_motherboard.jpg[/url]
Everything is located on the lower right end of this picture between the BIOS, Socket, DIP switch and border of the board. But you already found that.
I've changed the 4 same caps and only one CET CEB6030L -the right one- (left one seems good - no conduction between its 3 pins), and last: the bigger caps -but all seems on the same size on this picture-. It's the one...Leave a comment:
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Re: DFI P5VB3+ dead with bad caps and more...
@iti: okay ... but where to test these voltages ?
Do you mean testing board plugged (PSU voltage on) without CPU and test Vcc2 and Vcc3 socket pins directly on the board ..??
There is no indication of voltage test points marked anywhere on the board... and I've found no reparation manual about this DFI P5BV3+ ...
In case other(s) component(s) should be dead also (despite they look good) ... Which one can be ? Another CEB CET6030L (there is two - I changed only one) ? Another caps just near...Last edited by canal; 11-30-2014, 01:08 PM.Leave a comment:
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Re: DFI P5VB3+ dead with bad caps and more...
Ho ! Sorry, for long answer !
I've recapped the mother-board (for a total of 5 caps 1000uF) and changed the burnt/died CET CEB6030L by a 75N08 (MOSFET replacement as someone told me). Was TO-263 and get TO-220 instead... so a bit harder to solder but I've done it !
In the meanwhile, I discovered the CPU (a K6-2 366MHz) has died also: burnt in its center. So, I'm stuck for the moment ... Of course, nothing works.
@Majestyk: By ATA66 I suppose you speak of DFI K6BV3+ mother-board ?...Leave a comment:
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Re: DFI P5VB3+ dead with bad caps and more...
[Right place]
@stj : OK. I've unscrewed the PSU and happilly found no bad caps inside. Nothing burnt also... All seems okay (except for excess of dusts I've cleaned !). I've test +5volt and +12volt then get +5 and +12 (but PSU alone - nothing plugged) ! Can't test further as the AT (not ATX) plug isn't easy for that !
Yes, old: 16 years old ! But use it since that time everyday until 2 month ago... It seems the mobo could accept K6-III ... (Super 7 socket) but didn't exist at that time and so was...Last edited by canal; 11-24-2014, 09:43 AM.Leave a comment:
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