Do i have a bad batch of ram or a bad riser card?

I recently took my mac pro 3.1 up to 16 gigs of ram in 8 2gb dimms. I had the dimm in riser b slot go bad and I replaced it. It took a few days to get a new dimm so took the dimm out slot 4 and put it into slot 2 and removed dimm 3 as well so that i had 12 gb to work with. When I put the replace ment dimm and the dimm out of slot 3 back in the dimm in slot 2 gave me a red LED. I moved it to slot 4 to try reseeting it but it still shows bad in slot 4. do you think I got a bad batch of ram or that my riser is killing the ram that I have? I dont want to have to keep replacing the tam if my mac is killing the ram.

I have a hard time following
DIMMs are always treated in pairs, and returned as such, no one replaces a single DIMM.
8 x 2GB with 4 on each Riser is fine.
You should have returned both A3 and A4 (you don't metion which Riser so I'll just use A).
There should be method to madness.
Try one set at a time. Or half. Or all on one Riser
Try swapping Riser A and B.
Apple Hardware Test is of help with Risers and 'mechanical' errors. To test software based errors.
Having a DIMM or set show as HALF their rated capacity is also a common problem with FBDIMMs, which should always be kept cool as possible and monitored, including increase of the system fans by 300-400 rpm.
As I said, Crucial, MacSales, Ramjet, Trans, they all want you to return the matching sets.
I don't think your Risers are killing your RAM. but maybe choice and handling and vendor.

Similar Messages

Bad Riser Card = send to shop?

Hey everyone,
I'm the (otherwise very happy) owner of a 2007 8-Core Mac Pro getting ECC errors from a specific DIMM on what I believe to be a bad riser card. I gave away the stock 1 GB RAM and am using 4x2GB sticks from TransIntl.com and installed on my machine since Day 1
When I spoke to someone at AppleCare, they told me that I had to send my machine in to an Apple Store (or Apple Authorized Service Center) since the riser card, at least according to the info she had in front of her, isn't a user-replaceable part. This was tough for me to believe, but I didn't want to argue unnecessarily.
So my question is: does Apple really not send replacement riser cards out to users? On a PowerMac G4 years ago, I was sent a replacement SuperDrive when mine went bad. I'd consider a riser card - especially on the beautifully designed Mac Pros - to be eminently easier to replace, so this doesn't make sense to me.
Since this is the first time I'm posting about this issue here on Apple Discussions: yes, I'm fairly certain my riser card is bad. I've done all the tests for this - swapped the RAM modules, swapped the riser cards between slots - and the same DIMM on the same card reports ECC errors after awhile (my machine is on 24/7).
Curious to hear experiences or opinions...

Once you replace the RAM yourself, you expose yourself to the possibility that the warranty won't be honored if you damage something in the process. Read the RAM installation instructions for your model in the Do-It-Yourself page of Apple's support website. All the disclaimers are there. If you sold the DIMM, unfortunately you have further eliminated any chance of discovering if the problem was the Transintl module or the riser card, unless you try yet another RAM card that is new from a renowned vendor. You are better off letting an authorized service center do the installation, because that way, they can document it for Apple that it was done by them. Regardless of what Apple says here, this is a user to user forum, and we can't really discuss policy. You'd best just take it up with Apple if you find two highly renouned vendors aren't able to give you a working RAM card in your machine*:
http://www.macmaps.com/badram.html
And in the future, never sell elements you replace yourself until you are certain the replacement part works.
- * Links to my pages may give me compensation.
Message was edited by: a brody

Do I have a Bad Airport Card? or is it my Router?

I'm hoping someone smarter than me can help..I have three Macs (Imac, Emac and G4) with airport cards that connect to an airport extreme base station. Recently on my G4 the icon showing the airport signal is rarely good and many times says "airport card not installed"...the other two have no problems connecting via the wireless network. If I restart or shutdown and restart, it is becoming more likely that it won't show connected..if it does, it rarely stays connected for more than 4-5 minutes. One additional note is that my airport base station is connected to a DSL modem, which is also a router...could that be screwing things up..ie, an input to a modem/router to a wireless router??? Help, hate to keep borrowing my children's computers, but not as much as they do Thanks in advance, D

Daniel, First welcome to the discussions.
If your Modem Router is multi port on the back Try plugging in to the #1 port and then to the WAN port the one with the little circle of dots on the Airport Extreme.
Next you might want to double check that the Airport card is seated very firmly and check the antenna also they have a problem of not being seated properly causing problems as you describe....Don

Bad Ethernet Card?

I have a HP Pavilion a6110n operating on Vista. I cannot make an internet connection. The ethernet works on a different computer, but not on the HP. The led on the ethernet port is blinking. I've tried to reset via the pc and the modem.
When I try to use the wizard to restablish the connection, the wizard cannot continue and indicates failure to find internet connectivity.
The cord works fine with other computers.
What's the likelihood that I have a bad Ethernet card and if I do, what is the process to get a new one?
Any ideas?

solved elsewhere

How Can I Tell if I Have a Bad RAM Terminal?

A few weeks ago, my MacBook Pro started freezing several times a day, and it was to the point where I couldn't use it for even 10 minutes. It would also beep three times most of the time that it froze. So I turned it off for like 3 weeks and then took it in to the Genius Bar.
He ran some tests and said it was a RAM issue and I could buy new RAM chips (or whatever) and so I did, and when I installed two of them, my computer wouldn't start. I thought maybe the MHz was too big. I took one out, and the computer worked fine. For thirty minutes. Then BEEEEP beeeeeep BEEEEEP
I removed the one RAM and reseated it in the other terminal, and my computer has been working fine for most of the morning. I am running Chrome and playing youtube, Facebook, uploading pictures, and using iPhoto.
My MacBookPro came with 2 2GB RAMs (1333 MHz). The new RAMs are 2 4GB DDR3 OC3-10666 and compatible with 1333MHz and 1066MHz, according to the package.
The closest Apple store to me is more than an hour drive, and I'm wondering if there are any tests I can do at home. To me, an inexperienced computer repairwoman, it looks like I have a bad RAM terminal. Tonight I will reseat the RAM in the first terminal I tried, and see if it freezes and beeps again. It's possible that it was just seated incorrectly, perhaps?
Please send any and all advice, thoughts, questions, etc. Thank you!

As John Galt says, not all RAM is created equal. Crucial.com or MacSales.com (OWC) are well respected Mac RAM vendors.
Rember
<https://www.macupdate.com/app/mac/15837/rember/>
is a wrapper around memtest.
Note: If you Mac refuses to run the app, you can force it by doing Control-Click -> Open, and then agreeing to the dialog box. Rember is an unsigned app, which is why the Mac may complain. The Control-Click -> Open trick is a way to force the Mac to run the unsigned app.
If you are having problems betting into a full Mac OS X GUI, then you might want to get memtest which can be run from the command line in Single-User mode (boot holding Command-S). If you have installed 'Rember' you can find a copy of 'memtest' buried inside
./Rember.app/Contents/Resources/memtest all
the ./ means you have to figure out the front part of the directory path to Rember.app where ever you stored it.
Here are some additional web sites, but keep in mind that 'Rember' is a wrapper for 'memtest' so when those sites discuss 'memtest', 'Rember' is essentially the same thing.
<http://guides.macrumors.com/Testing_RAM>
<http://osxdaily.com/2011/05/03/memtest-mac-ram-test/>
<http://support.apple.com/kb/ht1509>
<http://support.apple.com/kb/PH11342>

Do I have a bad memory slot and what to do about it.

About 3 weeks ago when I came down to my computer, intel imac purchased may 2006, in the morning the screen was black and power button was lit, keyboard did not work and the computer would not wake up from sleep. Rebooted and the power light would come one, no chime or screen power up, and the keyboard would not respond (ie caps lock key would light up). Tried multiple reboots and pulling everything connected out but nothing worked. Next on the torubleshooting list was to remove the ram. With both chips removed, 1gb and 512mb, I would get the flashing powerlight when starting up. I placed back in the 512 chip which is in the slot furthest from the front and the same symptons of just a solid power light with nothing else was exhibited. Removed the chip and placed the 1gb chip back into the slot closest to the front of the computer, everything worked fine. Startup was normal etc. Next, I removed the 1gb chip and put it into the slot towards the back and it would not work, next, moved the 512 chip to the front and all is well. Therefore, I think I have a bad memory slot given the torubleshooting procedures. Is this a correct assumption?
Here are my questions:
1. Are there any software solutions that will tell if the memory slot is indeed bad?
2. Does this sound like a hardware issue or is there an update to the core system that would fix this problem?
3. In order to get this repaired, would I take the imac to the apple store?
4. The computer was purchased in May 2006, if I purchased an applecare protection plan, would that cover the repairs or does it need to be purchased within 90 days of the computer?
Thanks in advance.

I think that sounds like a firmware update gone bad. Apple page I found says: "In the rare case that your computer displays a black screen after start up, you will need to restore your computers firmware back to factory condition before you can apply firmware update."
Dont know, but sounds like it.
http://docs.info.apple.com/article.html?artnum=303364
may be worth a try.

What can I do in Adobe that I can't in FCPX? + Why does FCPX have a bad reputation

Somewhere else, I was told that disgruntled Apple users where going to Adobe and leaving FCPX
Why is this?
What can be done in the Adobe suite of programs that isn't handled well in FCPX?
Is FCPX an all in one solution?
Does it allow me to do everything that can be done in After Effects for example? (I ask without actually knowing what After Effects is for - I've just heard it mentioned looadds)
Why does FCPX have a bad reputation?
I've read that it's not backwards compatible with previous version
That *****! But... doesn't effect me as I'm coming in as a new user
Thanks
Omar

omar.m wrote:
Somewhere else, I was told that disgruntled Apple users where going to Adobe and leaving FCPX
Why is this?
What can be done in the Adobe suite of programs that isn't handled well in FCPX?
Different editors have different needs, and while FCP X offers some really innovative features it lacks other things that some editors need in order to be competitive/get work in their environment. It is not just what you can actually edit (read: tell a story) with a piece of software but also about format support, workflows, collaboration to name just a few.
FCP X is an editor with a few effects built in, in addition to which you can get Compressor for output and Motion for VFX. Adobe actually offers a whole suite of products that range from editing to VFX, from color grading to Blu-Ray authoring.
omar.m wrote:
Is FCPX an all in one solution?
Does it allow me to do everything that can be done in After Effects for example? (I ask without actually knowing what After Effects is for - I've just heard it mentioned looadds)
FCP X is not an all-in-one solution. As I said above it is an editor with a few built-in effects and titles.
After Effects is for visual effects, green screen .... stuff like that. It is quite powerful but does not actually have anything to do with editing itself (that is Premiere)
omar.m wrote:
Why does FCPX have a bad reputation?
I've read that it's not backwards compatible with previous version
That *****! But... doesn't effect me as I'm coming in as a new user
Because when it was released many features that editors were relying on/accustomed to were missing (XML support to name only one at random) which caused many to switch to Adobe or Avid. That fact that some of these features were added back in subsequent updates didn't really seem to repair the damage.
Since you are a new user get the trial version and give it a go. You will need a fast machine with lots of RAM and fast external storage.

I am trying to use logic pro 9 on my lion system and it continues to say I have a bad midi...when i go to check my midi drivers folders in my library its empty...does anyone know whats going on?

i am trying to use logic pro 9 on my lion system and it continues to say I have a bad midi...when i go to check my midi drivers folders in my library its empty...does anyone know whats going on?

I
got your message about making sure to use the machine specific disk that came with my machine. Unfortunately, Apple no longer sells Tiger replacement disks. I've got a couple of bids out on ebay, and will update when I have news to add to this post.
Thank you for your help, Frank!
To be clear you called the 800 number and explained what the situation was, old machine and lost the original DVD's?
Just checking because if you just called and tried to buy the DVD's they might tell you they no longer sell them but you aren't really trying to buy them your trying to replace the ones that are missing.
Ebay may work but there is a certain specificity to the DVD's required which, even if they seem right, might not work.
Good luck either way. If you get a chance when you get the DVD's I'd be interested in hearing how it all works out.
regards

I have had bad luck lately I lost my computer to water cant be fixed and now my IPOD has been stolen when I get a new one how can I get my I tunes,games on the new one without my computer or old I pod

I have had bad luck with electronics lately my computer got lost to water and cant be fixed now my Ipod has been stolen I reported it to Apple but now I need to know when I get a new one how can I get back my music and games etc. if I can get it just with my account

What kind of iPod are you getting to replace it? If it is an iPod Touch, and you are in the US, after you set up the Touch you can use the iCloud beta and download your previous music, books and app purchases directly to your Touch.

How can I use a SCH-LC11 device in CHINA which bought from ebay. I am not Verizon customer but I prefer to using your 4G LTE Router . How can I get the unlock code? The device may have a bad ESN but I only use it in CHINA. Kindly looking forward your repl

How can I use a SCH-LC11 device in CHINA which bought from ebay. I am not Verizon customer but I prefer to using your 4G LTE Router . How can I get the unlock code? The device may have a bad ESN but I only use it in CHINA. Kindly looking forward your reply. Thanks!

It's good to read Antoniad's post. It reassures me that I can use my new iPad as an international communication device which is the reason I purchased the thing. However, I called Verizon today (my provider of cellular data) who told me that I can't just pop in a SIM card as you suggested. He also said that he was from the "Pre-Pay" division of Verizon and he was certain that I couldn't do what I planned to do. I was extremely disappointed as I had called Apple prior to buying the iPad and I read the algorhythm on the website for choosing an iPad before purchasing. Those sources were quite specific and the information seemed clear. I would be able to use my iPad to communicate through cellular connections while traveling on the road, literally, abroad. I was told that I could pop in a data card wherever I was, just as you indicated in your message above, and voila I was good to go. The Verizon rep definitively rained on that parade, but said that I might be able to do this if I have a "Post-Pay" account, a different area of Verizon. I haven't had the chance to talk to this division yet, so I looked to Apple's Support for answers. Maybe I will find out that I can use my iPad as an international communication device while traveling on the road afterall, however, it appears I may need a different type of account (Post-Pay), something I was never warned about. Can I switch to this kind of account? I don't know. I have to find out. If you have any information about this issue, it would be good to share since I strongly suspect there are others who bought the iPad for the same purpose that I have.

Hello there, is there any way i can log onto Game Center via just my Username as i have forgotten the other details (I made the account when i was 11 - I'm now 14 and have a bad memory)

The Question says it all really.
Is there any way i can log onto Game Center via just my Username as i have forgotten the other details (I made the account when i was 11 - I'm now 14 and have a bad memory)?
I remember my Username on Gamcenter but due to the recent update of iOS7, it is only letting me Sign in through my APPLE ID - which i have forgotten over time. I wish to recover my account recently because I remember purchasing Gems on the game 'Clash of Clans' and I wish I could restart playing the game.
Many thanks for taking your time to read and answer this question.
-Gavin Chong.

Hey xChongy!
I have an article here that can help you find that forgotten Apple ID:
Apple ID: How to find your Apple ID
http://support.apple.com/kb/HT5625
Thanks for using the Apple Support Communities. Have a good one!
-Braden

I have mac pro i7 , 8GB RAM , 750 HDD , can i install windows 7 ultimate 64 as a parrallals desktop?

i have mac pro i7 , 8GB RAM , 750 HDD , can i install windows 7 ultimate 64 as a parrallals desktop?

Hello and welcome to Apple Support Communities!
Yes, you can install Windows 7 Ultimate 64-bit in your Mac using Parallels for Mac. Just follow the instructions of the virtualization programs during the install. Should you need any assistance with the installation process, I strongly recommend contacting Parallels Tech Support (you must register with Parallels in order to have tech support).
Alternatively, you can always use Apple's BootCamp if you want to run Windows natively in your Mac. Check their support page, Apple has a lot of good links explaining this solution.
Hope this helps!

TS1368 I am connected to internet but my iTunes usually tells me I have a bad connectivity?

I am connected to internet but my iTunes usually tells me I have a bad connectivity?

Hey there Mohohlo!
I have an article that can help you troubleshoot this issue with your connection to the iTunes Store:
Can't connect to the iTunes Store
http://support.apple.com/kb/ts1368
Thanks for using the Apple Support Communities!
Cheers,
Braden

Have imac osx 10.6.8 with 2 gb 667 mhz ddr2 sdram. Can I get more ram and a good video card to use CS6 Premiere Pro

I'd like to upgrade with more ram and a proper video card to properly use Adobe Premiere Pro CS6.
I have an imac version 10.6.8 Can I boost this mac.
Hardware Overview:
Model Name:          iMac
Model Identifier:          iMac5,2
Processor Name:          Intel Core 2 Duo
Processor Speed:          1.83 GHz
Number Of Processors:          1
Total Number Of Cores:          2
L2 Cache:          2 MB
Memory:          2 GB
Bus Speed:          667 MHz
Boot ROM Version:          IM52.0090.B09
SMC Version (system):          1.6f0
Serial Number (system):          W86510LAWH5
Hardware UUID:          00000000-0000-1000-8000-0017F2CA47EB

Sorry, you have the maximum amount of RAM in your computer, as shown in the specs below. Also the video card can not be upgraded.
Maximum Memory     2.0 GB
Memory Slots     2 - 200-pin PC2-5300 (667MHz) DDR2 SO-DIMM

I have implemted badi for adding tab vl01 t.code?

Hi abapers,
I have implemented badi for adding tab vl01 t.code?But additional tab is not appearing in vl01?

Hi,
I found something similar.hope it helps.
lets say u have to add fields to standard table EKPO.
U can add a customer field in a standard table only for those standard table which has given the provision for adding fields .
Go to se11 and check out the table. there u will have CI_EKPODB . "CI " stands for custom include.
i u can add my field.
Read the following----
To add the customer field :
Go to SE11 --> EKPO -->Display --> then doube click the data element "CI_EKPODB"... it will ask whether u want to create a field ...press YES and then continue with adding the field.. "ZZPAYMENT" in that ...
Creating the field in the table:
Give the name of the componenet "ZZPAYMENT" and the related data element (if the field "ZZPAYMENT" is of type CHAR give the data element as "CHAR" and give the needed length of the field say (15)...... then save and activate ur table........ it will show some warnings .... (ignore that) now ur table with the customer field will be ready
Hope this helps u out.
regards,
Hari Kiran

Do i have a bad batch of ram or a bad riser card?

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