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**kaniki** · 07-08-2010, 02:30 AM

Re: P4SD - case YF2

please tell me that you had put the heat sink on the integrated chip before you tested it..

as for memtest.. that will run forever if let go and does not usually freeze up on its own..

If it posted before your recap, just not after, then i would check to make sure that there is no flux under the caps that you replaced as that might be shorting out the connections..

If it did not post before your recap, and does start up after the system has had a little heat put on it, then i would start by testing the rest of the caps.. start with the ones by the parallel port and the ones to the right of it..

also, dont forget.. this is an asus board that is a variation of the ones that HP uses, so most likely, you will have to have good low density ram in the board. most likely high density will not work at all.. and the HP version does not support sticks over 512MB, not sure about this one but if this is the same, then if you tried 1 gig stick for the testing, then they might freeze up the system since it might not support sticks of that size..

also, you said that it does not post.. do you get anything.. did you hook speakers up (the internal one) that gives beep codes to what might be wrong and if so, did you get anything?

**MXM** · 07-08-2010, 10:15 AM

Re: P4SD - case YF2

Thanks for your reply, as typing im cleaning the board since that i didnt do (honestly last night at home i had a flashback and remembered how i did not clean the board with iso after the whole procedure) let me finish and i will take pics of how i solved a little recapping issue i had.

and yeah i did put the heatsink back, i just took it off for cleaning, inspection n gooping

i know bout mtest thats why i was surprised with the symbols, the board got stuck at that moment. the software didnt respond at all.

the DIMMs i use for testing are the ones that came with the board, not specifically this board with any other d530 sff i get to fix, they all are 256 each.

no speaker error neither. when i test this boards i only attach the PSU, PS_On SW, SPK, CPU w/Cooler+Fan, 1-256 DIMM and PS/2 keyb.

i will upload with pics asap.

Thanks again.

**kaniki** · 07-08-2010, 11:30 AM

Re: P4SD - case YF2

ok.. the reason i asked about the message is after i replaced the blown caps on my moms board, i did not get it clean enough and all the flux from under the caps. I did not realize it till i tried to boot it up. I got a code that said that there was no ram installed so did not go through the post. I figured it out quickly.. after i removed one of the caps and saw the extra flux under it.. just glad that i realized it before i junked the board.. then i would really have felt stupid.. Funny thing is, her board still has a little glitch in it to this day.. once out of every 30 boots, it will not boot. says something is not connected. just turn it back off and then back on and then works no problem. It happens so little that i dont worry about it and have no idea where to start looking to fix it. such a minor thing that i just dont worry about it..

as for memtest, the only time i ever saw that freeze up is when there was something with the hardware gone bad.. I think i would have been kinda surprised too..

well good luck and it will be nice to know if that was the only problem..

**MXM** · 07-08-2010, 01:10 PM

Re: P4SD - case YF2

UPDATE: The board booted last time i tested, and i did not put it under more tests, instead took these pics -i know i suck at pic taking im gonna try to improve-

i am suspicious on the contact of the caps on the VMR, how could I assure their contact, where could I 'bridge' em for em to be making a sure contact?

https://www.badcaps.net/forum/attach...id=16751&stc=1
https://www.badcaps.net/forum/attach...id=16752&stc=1

general overview of the board, how it currently looks:
-i know i also suck at soldering, im trying to do better on that as wel

-

https://www.badcaps.net/forum/attach...id=16753&stc=1
https://www.badcaps.net/forum/attach...id=16754&stc=1
https://www.badcaps.net/forum/attach...id=16756&stc=1
https://www.badcaps.net/forum/attach...id=16758&stc=1

do you think is enough goop, needs more, or i should remove some?

https://www.badcaps.net/forum/attach...id=16755&stc=1

and this is how i managed to solder those spots i ruined:

https://www.badcaps.net/forum/attach...id=16759&stc=1
https://www.badcaps.net/forum/attach...id=16760&stc=1

do you think that i should still 'bridge' this joints also? with each other and then to the other cap (3300/6.3) ?

Any idea is welcome,

thanks for the time and replies

Attached Files

**momaka** · 07-08-2010, 01:57 PM

Re: P4SD - case YF2

Originally posted by MXM

do you think is enough goop, needs more, or i should remove some?

Definitely remove some. A proper thru-hole solder joint will be shaped like a volcano and look shiny. For SMT stuff, you only need a tiny amount of solder.

Originally posted by MXM

i am suspicious on the contact of the caps on the VMR, how could I assure their contact, where could I 'bridge' em for em to be making a sure contact?

Just make sure the solder joints look shiny like I mentioned above. No need to bridge them.

Also, I see some Wendel branded caps on the VRM high side - you should probably get rid of them as they are most likely not suitable for motherboard repair.

**MXM** · 07-08-2010, 03:15 PM

Re: P4SD - case YF2

^ thanks, yeah i replaced three 1200/16 cheapo for 3 1500/25 wendell -right besides the lpt port, u mean those, right- , unfortunetly for me i dont have better caps atm.

i took some readings, on the caps that go directly to the processor area, they show around 1.3v... like the one close to the board edge gives me 1.312 and the one on the other end shows 1.32... the values dont really change but they are not the same one cap to another... i dont know if that means something, good or bad... also took some reads at the inductors right besides those and i get around the same values, from 1.309 to 1.319 they dont match on one joint to the other,. also took reads from the caps i messed up besides the DIMM slots and the value is always 2.61+ i believe i am suppoused to have 2.5 there, but i dont know about the rest -lucky enough for me i dont have a single working board, they all are broke- are those values way wrong? how could i lower that 2.61+ to 2.5 and does anyone know what values i am to expect on those caps close to the CPU?

any info is wel appreciated, thanks again.

**momaka** · 07-08-2010, 07:26 PM

Re: P4SD - case YF2

Originally posted by MXM

^ thanks, yeah i replaced three 1200/16 cheapo for 3 1500/25 wendell -right besides the lpt port, u mean those, right- , unfortunetly for me i dont have better caps atm.

Correct, those are the caps I was talking about. They are part of the VRM high side - basically they filter the 12v rail before it goes to the MOSFETs (the black square-shaped devices next to the caps near the CPU). The MOSFETs then feed a low voltage to the caps next to the CPU (this is called the VRM low side) which in turn is what gives voltage to the processor.
Now if the caps on VRM high are inadequate, they may cause the motherboard not to boot. If you really have no other caps you can use, perhaps you can add another Wendell in there. There is an empty spot for a cap on the board near those 3. You can see it on the lower left corner of this picture:
https://www.badcaps.net/forum/attach...id=16756&stc=1
Of course it would be a good idea to first check that this cap is in parallel with the other 3 Wendell caps. To do this, use your multimeter on the resistance setting, and check that the hole for the + on that spot is showing zero or very low resistance with the + on the Wendell caps. If it is, then go ahead and add another 1500uF, 25v Wendell cap in there.

As far as the 2.61v value you obtained near the DIMM slots - I'm not sure if that's how it should be or not. Have you tried resetting the CMOS? Perhaps the memory might have been previously set to run at 2.6v instead of the standard 2.5v.

**MXM** · 07-09-2010, 09:11 AM

Re: P4SD - case YF2

^ Thanks, details i didnt really know. I Appreciate.

ive seen that empty spot and i wondered what itd be for, i will do the test you ask me for, but before i am gonna pull some caps from other board and see what happens, the bad about this is that i might be pulling caps as crappy as the wendel themselves, but i'll keep that as plan B

for the 2.61 i thought they are incorrect due to the fact that the mem slots have the legend "2.5v" like graven on em. -sorry English is not my mother tongue.- but id still dont know how to lower that value.

so im gonna get hands to it and see what happens.

Thanks again for the time and replies, will update asap.

**MXM** · 07-14-2010, 11:15 AM

Re: P4SD - case YF2

UPDATE: ive redeemed myself for not updating last days cause uploading these pics just took me about three hours.

so this is how the board looks today, before the pics i tested it and it gave me some unsuccesful POSTs, just the first one went thru the whole ram test and made it to the device detection, the rest of the tests didnt even make it to the end of the ram test, give me the benefit of the doubt the DIMM is ok since ive used it with some others boards. all those tests were performed with the board loosen, so i thought id mount it on its base to lock the cooler and see what happenes, -and because now everythime i boot it up the fan goes to its max speed- by coincidence or not, the board did not show any POST after this, unmounted and still, nothing.

i recapped those caps mentioned by momaka, i managed to find 1500/25 from the [M] brand, they dont perfectly fit as u can see in the pics but still the contact is made and they are not like pushing or forcing each other, still if someone thinks this might cause me a problem please advise.

i did manual resoldering with a cheap iron and it was so cheap it broke at the middle of resoldering,

so i managed to get the temp up in here and finished the job with the weller. i did not do a complete resoldering but managed almost all the top side of the board.

i am also concerned about the contact on the VMR caps, to make sure they are properly in contact would it be ok if i bridge em all since I believe they are in parallel? could I do this also for the caps i messed up in the DIMM slots area?

the pic of the super i/o chip is because while i was doing the resoldering of those pins i accidentally soldered more than one pin to others beside, i think i managed to get that straighten up, any opinions? the solder was all over on the board and on the pins.

as for right now im up to hear any idea, i have thought on heating it to the max i can, including addind the flux to cpu area and heat -ive already done it once in this board- and also removing some unused devices, such as agp, pci, audio, and all the stuff we dont use around, anyone think this might help on something??

wel, i am sorry for the late delay but i really gotta lot of stuff around.-

Thanks in advance, anything is welcome, peace.

Attached Files

**momaka** · 07-14-2010, 08:15 PM

Re: P4SD - case YF2

Originally posted by MXM

i recapped those caps mentioned by momaka, i managed to find 1500/25 from the [M] brand

The [M]-branded caps would be Panasonic. They're of excellent quality. Which series are they, though? FC? FM? FK? FJ? There should be a 2- or 3-letter code on the side.
Their solder joints also seem a bit dry, and this time it looks like you didn't use enough solder. I think it might help if you shorten their leads - that is leave no more than 1/16" or 2 mm above the PCB where they will be soldered. Hopefully this will also help you from putting too much solder.

Other than that, I see that there are two 6.3v, 1800uF caps next to the ram slots that are sitting very high. Try soldering them flush to the motherboard - reason for that being is because long leads increase the ESR in the circuit - a non-desirable result in this situation (it's like putting lower grade capacitors on the motherboard).

By the way, what happened to the top part of the CPU socket?

**kaniki** · 07-14-2010, 08:23 PM

Re: P4SD - case YF2

It may be a bad solder job. I am attaching a few places that you may want to check. The one looks like you de-soldered it and the solder track or run on it looks a little messed up and am not sure if the connection is getting through. A couple are the bottoms of the soldered caps. It may just be the pictures, but they almost look like they do not have barely any solder on them or it has been over heated and the solder did not stick. The last are with the 2 mini caps (at least i think they are a type of cap) They sit about 1 mm high. If you look closely, the end of 2 of them have been soldered together so that could be shorting things out.. after all, they are probably only about 1 or 2 mm apart from each other. besides those, just do a double check of all your solder connections.

Attached Files

**MXM** · 07-15-2010, 07:58 AM

Re: P4SD - case YF2

Originally posted by momaka

The [M]-branded caps would be Panasonic. They're of excellent quality. Which series are they, though? FC? FM? FK? FJ? There should be a 2- or 3-letter code on the side.
Their solder joints also seem a bit dry, and this time it looks like you didn't use enough solder. I think it might help if you shorten their leads - that is leave no more than 1/16" or 2 mm above the PCB where they will be soldered. Hopefully this will also help you from putting too much solder.

Other than that, I see that there are two 6.3v, 1800uF caps next to the ram slots that are sitting very high. Try soldering them flush to the motherboard - reason for that being is because long leads increase the ESR in the circuit - a non-desirable result in this situation (it's like putting lower grade capacitors on the motherboard).

By the way, what happened to the top part of the CPU socket?

hey, thanks.

i brought a couple of other cheap irons to see how they work out. One of em i know reaaaally heats up cause is one i used to use in a former job. I will re-solder those caps. As for the caps details i will take a look and tell but i need to desolder one since all the letters face the lpt port and cant read

The reason why i didn't solder em flush to the mobo is because i wanted to "assure some kind of contact" since i messed it the bottom part of the soldering area

i removed the top part for inspection and reheating. But yeah is back in there, I will follow the advises and update asap.

Thanks for the reply.

**MXM** · 07-15-2010, 07:59 AM

Re: P4SD - case YF2

Originally posted by kaniki

It may be a bad solder job. I am attaching a few places that you may want to check. The one looks like you de-soldered it and the solder track or run on it looks a little messed up and am not sure if the connection is getting through. A couple are the bottoms of the soldered caps. It may just be the pictures, but they almost look like they do not have barely any solder on them or it has been over heated and the solder did not stick. The last are with the 2 mini caps (at least i think they are a type of cap) They sit about 1 mm high. If you look closely, the end of 2 of them have been soldered together so that could be shorting things out.. after all, they are probably only about 1 or 2 mm apart from each other. besides those, just do a double check of all your solder connections.

im on it, thanks for the advises. i will take pics and update asap.

Thanks again.

**machi** · 01-08-2011, 06:18 AM

Re: P4SD - case YF2

bonjour a tout le monde; je veux vous demandez si vous prouve me renseigner au sujet des raccordements de .power led ;reset,hd led speaker et atx sw sur la carte mere hp p4sd ,merci infiniment Machi

**machi** · 01-08-2011, 06:27 AM

Re: P4SD - case YF2

bonjour. vous voulez bien me faire savoir comment connecter power led, reset;hd ledet speaker sur la carte mere P4SD et encore un grand merci

**MXM** · 05-03-2011, 11:46 AM

Re: P4SD - case YF2

^ dude my french isnt too good at all. i'd gladly help if i knew what was that.

btw, this particular board never managed to POST but i was sent away and it was a sad end for it. Thanks everyone, i owe you the pics but i never saw that board again.

peace.

**Uranium-235** · 05-04-2011, 12:24 AM

Re: P4SD - case YF2

he said-

hello. you do me how to connect power LED, reset, hd Ledet speaker on the motherboard P4SD and a big thank you

**PCBONEZ** · 05-04-2011, 01:21 AM

Re: P4SD - case YF2

Nous ne parlons pas français.

Les images aident-elles ?

.

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