- sata port failure on HP motherboard - 1 Update
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| root <NoEMail@home.org>: Aug 28 03:39PM The sata ports on a 10 year old HP IPIEL-LA3 fail. The machine has been acting a server for several years and the sata ports fail a short time after power up. My question is whether that failure could be due to a failure of the heat sink function of a chip. There is a small heat sink near the sata connections on the MB. This heat sink is held in contact with the underlying chip by a Z shaped spring that is held down to the MB by two inverted U shaped loops soldered to the MB. The heat sink is finned aluminum about 1.3 inches on a side and .4 inches high. Could a breakdown of the thermal contact between an old heat sink and the chip cause overheating of the chip. If so, how do I release the Z spring from the U shaped mounts? I have tried bending one end with long nosed pliers but I run the risk of slipping off and breaking stuff on the MB. Thanks for any info. |
| John Robertson <spam@flippers.com>: Aug 27 11:21AM -0700 > had it for a few years. I plugged it in when i got it and it lights up, > eye tube works, but I never put it to use. I'd tell you the model number > of mine, but I will have to dig it out of my storage shed. It is an IT-28. Has a Power Factor test which is useful for testing power supply caps. I can make a PDF of my manual if you are desperate...however I expect it is online somewhere. John :-#)# -- (Please post followups or tech inquiries to the USENET newsgroup) John's Jukes Ltd. MOVED to #7 - 3979 Marine Way, Burnaby, BC, Canada V5J 5E3 (604)872-5757 (Pinballs, Jukes, Video Games) www.flippers.com "Old pinballers never die, they just flip out." |
| Cursitor Doom <curd@notformail.com>: Aug 27 07:30PM On Mon, 27 Aug 2018 12:30:26 -0400, Ralph Mowery wrote: > I still believe in just replacing the 'bad' ones. Sometimes more harm > can be done to the equipment by doing the reforming process if done > wrong. I don't think you've read the thread right through. These are NOS caps out of circuit. I've now reformed them all and they pass all the applicable tests, so I'll be installing them in place of the dead ones later this week. -- This message may be freely reproduced without limit or charge only via the Usenet protocol. Reproduction in whole or part through other protocols, whether for profit or not, is conditional upon a charge of GBP10.00 per reproduction. Publication in this manner via non-Usenet protocols constitutes acceptance of this condition. |
| Ralph Mowery <rmowery28146@earthlink.net>: Aug 27 03:46PM -0400 In article <pm1jgs$gmf$1@dont-email.me>, curd@notformail.com says... > out of circuit. I've now reformed them all and they pass all the > applicable tests, so I'll be installing them in place of the dead ones > later this week. It may be worth while on the NOS caps. I may even be tempted to give that a try. |
| Terry Schwartz <tschw10117@aol.com>: Aug 27 12:49PM -0700 Why you would put 40 year old caps into ANYTHING is beyond me. Reformed or not. They may "pass the tests" now but they will not hold up long term. Spend the $25 and get new parts. Unless, that is, you like doing things twice. Feel like risking that PCB again in 2 years? |
| "jfeng@my-deja.com" <jfeng@my-deja.com>: Aug 27 02:02PM -0700 On Monday, August 27, 2018 at 12:50:00 PM UTC-7, Terry Schwartz wrote: > ...Spend the $25 and get new parts... Here in Silicon Valley, it would be a lot less. 4700uF/35V and 5600uF/42V are both available at retail for under US$1 each. The diagnosis is probably correct, and the OP is committed to replacing the original caps, but I do not remember seeing a claim that this actually fixed the problem. At this price and given the concern over the long term reliability of the junque-box parts, I would tack-solder these caps to verify that this does indeed fix the problem, but I would use the new parts for the "permanent" repair. Using reformed parts would be OK if the faulty ones were unobtanium. |
| Fox's Mercantile <jdangus@att.net>: Aug 27 08:56PM -0500 On 8/27/18 8:41 AM, John-Del wrote: > I won't watch that video because I KNOW Jeff is right: reforming > is a fool's game. Like John, I do this shit for a living, and I refuse to waste my time, or reputation, with any "crack pot" repairs. -- "I am a river to my people." Jeff-1.0 WA6FWi http:foxsmercantile.com |
| Cursitor Doom <curd@notformail.com>: Aug 28 09:15AM On Mon, 27 Aug 2018 20:56:41 -0500, Fox's Mercantile wrote: >> fool's game. > Like John, I do this shit for a living, and I refuse to waste my time, > or reputation, with any "crack pot" repairs. If you're a professional repair tech, I can see why you would only use new parts. But I'm just a ham; a hobbyist. And we hams have been successfully reforming electros for many decades without any adverse outcomes. Loads of info on the net it you care to look for it, but I'm guessing since you're a pro you'll turn your nose up at the very thought! -- This message may be freely reproduced without limit or charge only via the Usenet protocol. Reproduction in whole or part through other protocols, whether for profit or not, is conditional upon a charge of GBP10.00 per reproduction. Publication in this manner via non-Usenet protocols constitutes acceptance of this condition. |
| "pfjw@aol.com" <peterwieck33@gmail.com>: Aug 28 03:58AM -0700 And we hams have been successfully reforming electros for many decades without any adverse outcomes. That have been reported. Hams are a parsimonious lot. And, like many of us, they will refrain from publicizing silly mistakes. Peter Wieck Melrose Park, PA |
| Fox's Mercantile <jdangus@att.net>: Aug 28 06:23AM -0500 On 8/28/18 4:15 AM, Cursitor Doom wrote: > without any adverse outcomes. Loads of info on the net it you > care to look for it, but I'm guessing since you're a pro you'll > turn your nose up at the very thought! Hams are notoriously cheap. And the internet is a cesspool of useless information. I've been a licensed Ham for 50 years now. You wouldn't believe some of the butchery I've encountered on Ham radio gear. I have a phrase for it. Joe "Claw Hammer" Ham has been here. Apparently having a ham license gives you the ability to think you know more than any commercial engineer. That being said, I've used old NOS capacitors for myself. But I don't waste my time reforming them. They either work right the first time they have power applied or they don't. -- "I am a river to my people." Jeff-1.0 WA6FWi http:foxsmercantile.com |
| makolber@yahoo.com: Aug 28 06:43AM -0700 if there is room, just leave the old cap in place and wire a new one in parallel. m |
| John Robertson <spam@flippers.com>: Aug 28 08:01AM -0700 > if there is room, just leave the old cap in place and wire a new one in parallel. > m That is only good advice if you first cut the old cap out of circuit. Many capacitors fail by increasing their leakage or outright shorting out. If the capacitor is suspect replace it. John :-#(# -- (Please post followups or tech inquiries to the USENET newsgroup) John's Jukes Ltd. MOVED to #7 - 3979 Marine Way, Burnaby, BC, Canada V5J 5E3 (604)872-5757 (Pinballs, Jukes, Video Games) www.flippers.com "Old pinballers never die, they just flip out." |
| Ralph Mowery <rmowery28146@earthlink.net>: Aug 28 11:07AM -0400 In article <RrWdnRKU77hVrRjGnZ2dnUU7-cfNnZ2d@giganews.com>, jdangus@att.net says... > That being said, I've used old NOS capacitors for myself. > But I don't waste my time reforming them. They either work right > the first time they have power applied or they don't. I understand that # 40 wire was made by 2 hams arguing over a penny. I have only been a ham for 45 years. I like you have seen many things cobbled together. Have even done some of that myself. Not that I thought I was a better engineer,but because I only had so much money to do things. Those were projects for myself. If I am doing things for myself, I may do anything to get equipment going. If I were doing things for others, it would be with good parts. Like the time at work an outside repair person came in to repair a 3 phase motor drive unit. He found 2 out of 3 diodes bad. I told him to replace the 3 rd one. It may have been under stress or not. He said they were $ 200 each. Told him it costs us $ 1000 or more per hour while that equipment was down, so $ 200 is good insurance it will not quit in a short time. That 3 rd diode would probably last , but why take a chance at those rates. |
| matj001@gmail.com: Aug 28 07:58AM -0700 So bro can you let us know how did u fixed the unit, I have the same issue on the same module. Does 2.2PF 2kv SMD CAP really exist? I can only find the 50v type. |
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