The PERC 4/Di is an older controller, found on 6th and 7th generation servers.  8th generation servers introduced the PERC 4e/Di.  They require different size and speed of memory, so you will need something specific to the 4e/Di.  If the LCD is blue, then start with replacing the memory - part number 4D554.  If the LCD is amber scrolling a message about the ROMB battery voltage, then replace the battery.

Thanks for the reply!  The LCD is blue so I will start with the memory.  I have not seen anything amber about battery voltage.  I see "256MB 1Rx8 PC2-3200R-333-10-A1" on the current memory module.  I do not see 4D554 anywhere.  Did they make this module in different speeds as mine seems to be 333Mhz and a quick google search shows the 4D554 as 400Mhz.  Just want to make sure I get the right one.  If you're fairly confident that 4D554 will work on this controller than it's worth a shot to me.

Thanks again.

Looks like the original configuration shows 4D554.  Although I can't be certain that this was never swapped in the past.  Here is the full number listed on the chip.

KR   M393T3253FG0-CCCDS   0449

Looks like I'll be trying the 4D554.

If it is on the memory chip, it may be embedded in a longer number - maybe something like 04d554-JW01Y66 ... if you have a longer number like that, the part number may actually be different - just post the whole string.  Alternatively, you could look up your Service Tag on support.dell.com, then click the link on the left-hand side for Warranty Status, then change the tab to Original Configuration ... should list a part number there.

http://www.impactcomputers.com/f6928.html

http://www.impactcomputers.com/4d554.html

4D554 is the main part number, although there are a few that will work, like F6928.  PERC's can be very picky with the memory they will accept, so I would start there.  The RAID memory has the same specs (mostly) as the system memory - PC2-3200/DDR2 400MHz, Registered ECC, single-rank, and 256MB in size.  The specs you posted for the other is PC2-3200, which all runs at 400MHz (3200/8=400).  The 333 in the description, I believe is the latency, usually written as 3-3-3.

4D554 did not work.  After installing a new replacement module BIOS is reporting that the DIMM is not campatible.  Any other suggestions on what module may work?  Maybe the controller is bad.

I will probably also try replacing the battery.  Is there a way to isolate  the memory as the problem, it appears that this is a pretty difficult part to find.  If replacing the battery and a correct DIMM do not fix the problem, I guess replacing the entire controller would be the next move.

Unless the replacement DIMM is bad, it should be compatible with any version of the PERC 4e/Di.  It is likely, given what we know now (although unlikely in general) that the memory slot or controller is bad.  A bad battery is not out of the realm of possibility, but again, not very likely.

The controller is on the large riser card, so if you are looking to replace either the controller or the memory slot, the riser will need to be replaced.  With riser cards, you should be careful to get a match for the one you have - if your riser has PCI-X slots, then there is a chance that your motherboard will not like a riser with PCIe slots.  Only the latter versions of the 2850 motherboard will accept either type of riser, as the 2850 did not support PCIe on its initial release.

The raid kits for the PE2850 are perc4e/di and they all use the same raid memory. The Dell part number is 4D554 and the specs are: 256mb 1Rx8 PC2-3200R-333. You may have received a memory stick that did not meet the specs I listed above that is why you got the incompatible error. I had the same issue with one of my PE2850's. I searched the web and found www.velocitytechsolutions.com and they were very knowledgable as to what I needed. They overnighted my part to me and within minutes my server was running flawlessly, my raid was intact and I have had no issues since. They took time to explain it all to me.

Velocity Tech Solutions was actually the vendor I got my replacement part from.  I'm sending it back because it was wrong and not compatible.  I may try another vendor and try swapping the DIMM again.  If this does not work, my next move will be replacing the entire riser card that the controller resides on.

Hello ski_guy.  

My name is Tom.  I work for a company that has Dell Poweredge servers and we too got the error of "Battery Module is Present..." like you did.  I was wondering if you ever resolved this issue and how you may have done that.  The error came up on our server this morning for the first time.  I'm hoping it's nothing major.

Thanks,

Tom

Thanks theflash1932.  I edited my phone number out of the post. 

I also spoke with a Dell Support Rep, and read to him what the error message was:

"Battery Module is present on the adaptor memory/battery problems were detected.  The adaptor has recovered, but cached data was lost.  Press any key to continue..."

We then pressed any key and the server came right back up.  He said that as a pre-emptive measure, that I should replace the memory/battery and raid controller.  He's sending me the parts and I'll be putting them in soon.  I'm crossing my fingers that the server stays up until I get the parts put in.

I've replaced the raid card on another pe2850 before , but because drives kept dropping offline (orange light).  Dell kept sending drives (four), but finally the raid card was replaced and drives quit going bad.

Tom