Dimension 8400 with bad HN(M)'s

**dood** · 04-30-2008, 07:03 AM

Was a bit surprised at this one. Board is fairly recent.

P4 3.0ghz
WD 160gb SATA HD
PCIe video card of some type
Originally shipped from Dell 8/9/2004

The Nichicon on the cap got blurred by the coil reflection.

All redone in panny FM's.

Original bad caps was a single 2200 6.3v and then (5) 1000uf 10v. I replaced the 1000 10v with 1200uf 10v because that was the closest thing I had in stock. PC runs great now

**kc8adu** · 04-30-2008, 10:23 AM

hn/hm are known bad caps.
ala gx270 boards.
100% fail rate in a year for several big customers.

**bgavin** · 04-30-2008, 09:31 PM

I know there is supposed to be a date range from bad ones, but I toss out all of 'em, no matter what.

**Wizard** · 05-02-2008, 04:13 PM

2004? That's not recent. In terms of computer stuff, that's "considered" old and I take advantage of that to get socket 478 boards and cpu rather cheaply so I can upgrade our shop's computers from ANCIENT PII/Celeron/PIII mix. My pc was Athlon 3000+ with A7N8X in 2004 and finally replaced with Asus P5K and E2200.

Toss boards with bad caps out? You mean swap the bad caps off with new caps?

Cheers, Wizard

**dood** · 05-02-2008, 06:28 PM

I hear ya, wizard. But with PCI-express and SATA native on-board, it's "new" to me. I'm still running a socket A AthlonXP system for my primary. With good old AGP! And, the only way I have SATA primary HD and optical is because I bought a controller card for them.

**bgavin** · 05-03-2008, 09:10 AM

I'm still on Socket A also. MSI boards, 400 FSB, DDR-400, AGP8x.

This is changing, as I have an E8400, GA-P35-DS3, DDR2-800 on the bench right now. I'm tinkering with the ideal fan combination for the Scythe Zipang heat sink I got for this board.

It's about ready to install the OS. I have to build this machine offline, as it is replacing my primary workstation. I cannot have this machine down for a few days while I build the new one. Push/Pull arrangement.

As to the Nichicons... I recap them as a matter of course. Bye, bye. I've done a number of 8400s for my clients. Both dead and preparing to die.

geforcefly · 05-06-2008, 09:44 PM

I ran into the same exact situation with a Dell Precision 370 (which uses the same motherboard as the Dimension 8400) so they aren't immune to the dreaded HN(M)s either.

**dood** · 12-02-2008, 12:21 AM

Just got another one of these in for recap.

**Wizard** · 12-02-2008, 08:59 AM

Whoops, I meant my P5K is my home main PC, and my work pc here is Dell Dimension 8300, yes HM cap in a row were burst. Replaced and tested with prime95 passed. Now running 2.8C.

Eventually replace that one as well. It's kind of "feeling sluggish".

Cheers, Wizard

MrVik · 07-31-2009, 12:55 PM

Hi dood. I have to recap an old Dell Dimension 8400 and would appreciate a cap list if possible. The computer is in service and I don't want to shut it down until I get the parts. Thanks for any help.

**Newbie2** · 07-31-2009, 01:49 PM

Quote:

Originally Posted by MrVik

Hi dood. I have to recap an old Dell Dimension 8400 and would appreciate a cap list if possible. The computer is in service and I don't want to shut it down until I get the parts. Thanks for any help.

It's recommended to stop using a PC with bad capacitors on the motherboard, otherwise there is a chance the problem can get much worse.

**ratdude747** · 07-31-2009, 09:16 PM

yeah. a board with bad caps can be fixed, a board burnt up because someone didn't replace the caps is a paperweight. and a potential fire hazard

**bgavin** · 08-01-2009, 09:52 AM

Board Rev Cap Mfg Series uF Volt ESR Dia Len Count

02U819 - Dimension 8400 A01 Nichicon VR 470 16.0 8.0 2
02U819 - Dimension 8400 A01 Fujitsu M Yellow-K 560 4.0 8.0 12.5 5
02U819 - Dimension 8400 A01 Rubycon MBZ 820 6.3 8.0 13.0 2
02U819 - Dimension 8400 A01 Rubycon ZL 1000 6.3 10.0 14.0 1
02U819 - Dimension 8400 A01 Nichicon HD 2200 16.0 12.5 25.0 2
02U819 - Dimension 8400 A01 Nichicon HM 3300 6.3 10.0 25.0 4

MrVik · 08-02-2009, 06:53 PM

Thank you very much bgavin, this will save me a lot of trouble. I appreciate your help. The first cap in your list, Nichicon VR 470, what is the voltage or am I just missing something? Thanks again.

**370forlife** · 08-02-2009, 07:25 PM

its 16...wait...

MrVik · 08-02-2009, 08:02 PM

Oh, I think I get it now. I might be too old and slow for membership on this board. Guess the "yoke" is on me, ha, ha. Bye.

**ratdude747** · 08-02-2009, 11:36 PM

its ok. too bad this forum has no table function

bones41 · 05-18-2010, 04:39 PM

My Dell Dim 8400 has a cap that looks simular to the one in the picture next to the coil. It has the same specs. Can you tell me were to get the same one. I have not seen any others that look like they are bulged.

**ratdude747** · 05-19-2010, 05:05 AM

brand?

bones41 · 05-19-2010, 08:13 AM

Quote:

Originally Posted by ratdude747

brand?

It is a Nichicon 2200uf 6.3v and it says 22 Ho 422 on the side

04-30-2008, 07:03 AM	#1
dood Deputy dood Join Date: Mar 2004 City & State: Berwick, PA My Country: USA Line Voltage: 120VAC 60HZ I'm a: Hardcore Geek Posts: 2,443	Dimension 8400 with bad HN(M)'s Was a bit surprised at this one. Board is fairly recent. P4 3.0ghz WD 160gb SATA HD PCIe video card of some type Originally shipped from Dell 8/9/2004 The Nichicon on the cap got blurred by the coil reflection. All redone in panny FM's. Original bad caps was a single 2200 6.3v and then (5) 1000uf 10v. I replaced the 1000 10v with 1200uf 10v because that was the closest thing I had in stock. PC runs great now

04-30-2008, 10:23 AM	#2
kc8adu Super Moderator Join Date: Nov 2003 City & State: dayton ohio My Country: U.S.A! Line Voltage: 12vdc,120/240vac,480vac 3ph on my bench I'm a: Professional Tech Posts: 8,297	Re: Dimension 8400 with bad HN(M)'s hn/hm are known bad caps. ala gx270 boards. 100% fail rate in a year for several big customers.

04-30-2008, 09:31 PM	#3
bgavin Badcaps Veteran Join Date: Jan 2007 City & State: Orangevale, CA Posts: 1,354	Re: Dimension 8400 with bad HN(M)'s I know there is supposed to be a date range from bad ones, but I toss out all of 'em, no matter what.

05-02-2008, 04:13 PM	#4
Wizard Badcaps Veteran Join Date: Mar 2008 Posts: 2,295	Re: Dimension 8400 with bad HN(M)'s 2004? That's not recent. In terms of computer stuff, that's "considered" old and I take advantage of that to get socket 478 boards and cpu rather cheaply so I can upgrade our shop's computers from ANCIENT PII/Celeron/PIII mix. My pc was Athlon 3000+ with A7N8X in 2004 and finally replaced with Asus P5K and E2200. Toss boards with bad caps out? You mean swap the bad caps off with new caps? Cheers, Wizard

05-02-2008, 06:28 PM	#5
dood Deputy dood Join Date: Mar 2004 City & State: Berwick, PA My Country: USA Line Voltage: 120VAC 60HZ I'm a: Hardcore Geek Posts: 2,443	Re: Dimension 8400 with bad HN(M)'s I hear ya, wizard. But with PCI-express and SATA native on-board, it's "new" to me. I'm still running a socket A AthlonXP system for my primary. With good old AGP! And, the only way I have SATA primary HD and optical is because I bought a controller card for them.

05-03-2008, 09:10 AM	#6
bgavin Badcaps Veteran Join Date: Jan 2007 City & State: Orangevale, CA Posts: 1,354	Re: Dimension 8400 with bad HN(M)'s I'm still on Socket A also. MSI boards, 400 FSB, DDR-400, AGP8x. This is changing, as I have an E8400, GA-P35-DS3, DDR2-800 on the bench right now. I'm tinkering with the ideal fan combination for the Scythe Zipang heat sink I got for this board. It's about ready to install the OS. I have to build this machine offline, as it is replacing my primary workstation. I cannot have this machine down for a few days while I build the new one. Push/Pull arrangement. As to the Nichicons... I recap them as a matter of course. Bye, bye. I've done a number of 8400s for my clients. Both dead and preparing to die.

05-06-2008, 09:44 PM	#7
geforcefly Member Join Date: Jul 2006 Posts: 23	Re: Dimension 8400 with bad HN(M)'s I ran into the same exact situation with a Dell Precision 370 (which uses the same motherboard as the Dimension 8400) so they aren't immune to the dreaded HN(M)s either.

12-02-2008, 12:21 AM	#8
dood Deputy dood Join Date: Mar 2004 City & State: Berwick, PA My Country: USA Line Voltage: 120VAC 60HZ I'm a: Hardcore Geek Posts: 2,443	Re: Dimension 8400 with bad HN(M)'s Just got another one of these in for recap.

12-02-2008, 08:59 AM	#9
Wizard Badcaps Veteran Join Date: Mar 2008 Posts: 2,295	Re: Dimension 8400 with bad HN(M)'s Whoops, I meant my P5K is my home main PC, and my work pc here is Dell Dimension 8300, yes HM cap in a row were burst. Replaced and tested with prime95 passed. Now running 2.8C. Eventually replace that one as well. It's kind of "feeling sluggish". Cheers, Wizard

07-31-2009, 12:55 PM	#10
MrVik New Member Join Date: Apr 2009 City & State: Nowhere Land Posts: 18	Re: Dimension 8400 with bad HN(M)'s Hi dood. I have to recap an old Dell Dimension 8400 and would appreciate a cap list if possible. The computer is in service and I don't want to shut it down until I get the parts. Thanks for any help. __________________ Why throw it away? I might need it in the next 40 years. Duh!

07-31-2009, 09:16 PM	#12
ratdude747 Black Sheep Join Date: Nov 2008 City & State: Madison, IN My Country: USA Line Voltage: 120VAC 60Hz I'm a: Professional Tech Posts: 16,674	Re: Dimension 8400 with bad HN(M)'s yeah. a board with bad caps can be fixed, a board burnt up because someone didn't replace the caps is a paperweight. and a potential fire hazard __________________ (Insert witty quote here)

08-01-2009, 09:52 AM	#13
bgavin Badcaps Veteran Join Date: Jan 2007 City & State: Orangevale, CA Posts: 1,354	Re: Dimension 8400 with bad HN(M)'s Board Rev Cap Mfg Series uF Volt ESR Dia Len Count 02U819 - Dimension 8400 A01 Nichicon VR 470 16.0 8.0 2 02U819 - Dimension 8400 A01 Fujitsu M Yellow-K 560 4.0 8.0 12.5 5 02U819 - Dimension 8400 A01 Rubycon MBZ 820 6.3 8.0 13.0 2 02U819 - Dimension 8400 A01 Rubycon ZL 1000 6.3 10.0 14.0 1 02U819 - Dimension 8400 A01 Nichicon HD 2200 16.0 12.5 25.0 2 02U819 - Dimension 8400 A01 Nichicon HM 3300 6.3 10.0 25.0 4

08-02-2009, 06:53 PM	#14
MrVik New Member Join Date: Apr 2009 City & State: Nowhere Land Posts: 18	Re: Dimension 8400 with bad HN(M)'s Thank you very much bgavin, this will save me a lot of trouble. I appreciate your help. The first cap in your list, Nichicon VR 470, what is the voltage or am I just missing something? Thanks again.

08-02-2009, 07:25 PM	#15
370forlife Large Marge Join Date: Aug 2008 City & State: Kalamazoo, MI My Country: United States Line Voltage: 0-120VAC 60Hz I'm a: Hobbyist Tech Posts: 2,924	Re: Dimension 8400 with bad HN(M)'s its 16...wait... __________________

08-02-2009, 08:02 PM	#16
MrVik New Member Join Date: Apr 2009 City & State: Nowhere Land Posts: 18	Re: Dimension 8400 with bad HN(M)'s Oh, I think I get it now. I might be too old and slow for membership on this board. Guess the "yoke" is on me, ha, ha. Bye.

08-02-2009, 11:36 PM	#17
ratdude747 Black Sheep Join Date: Nov 2008 City & State: Madison, IN My Country: USA Line Voltage: 120VAC 60Hz I'm a: Professional Tech Posts: 16,674	Re: Dimension 8400 with bad HN(M)'s its ok. too bad this forum has no table function

05-18-2010, 04:39 PM	#18
bones41 New Member Join Date: May 2010 Posts: 2	Re: Dimension 8400 with bad HN(M)'s My Dell Dim 8400 has a cap that looks simular to the one in the picture next to the coil. It has the same specs. Can you tell me were to get the same one. I have not seen any others that look like they are bulged.

05-19-2010, 05:05 AM	#19
ratdude747 Black Sheep Join Date: Nov 2008 City & State: Madison, IN My Country: USA Line Voltage: 120VAC 60Hz I'm a: Professional Tech Posts: 16,674	Re: Dimension 8400 with bad HN(M)'s brand?

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