Hi Guys n Girls,
Can someone please help me out on this as I'm pulling my hair out.
I am modernising a Dell Precision T5400 workstation for use with Autocad, Photoshop, Office, etc. and it is now running windows 7 Pro 64 bit SP1 on an SSD.
A quadro 4000 or firepro 7900 is next on the list but I cant risk putting any more money into it if I cant install more RAM.
The X5450's are working fine - I just wish they supported hyperthreading which would really make it a flyer.
The T5400 supports 32GB of ICC ram according to the manual, The 'my dell' programme says it supports 64GB and Sandra lite puts the max at 128GB but the 32GB is all I need.
Anyway I am upgrading from 4GB (4 x 1GB) of DDR2 PC2-5300F-555-11 and have purchased 32GB (8*4GB) of used, supposedly matched, HP 466436-061 RAM (made by hynix, part no's below) from ebay: (hp stickers all have same part number).
4GB 2Rx4 PC2-5300F-555-11 /// HYMP151F72CP4N3-Y5 AC-C 3 STICKS
4GB 2Rx4 PC2-5300F-555-11 /// HYMP151F72CP4N3-Y5 AB-C 5 STICKS
I can install any of the cards in slots 1-5 and the system recognises them and passes all prestartup & memory tests although it reports a mismatch on start because slot 5 is not paired so it does not use it. I only left it in to ensure that the second bank is recognising the card.
I have checked using 'sandra lite' and the hardware list shows they have identical specs and stepping except for the part number and they work fine mixed as long as only 4 (or 5) sticks are installed.
Any 4 of the sticks run fine in slots 1-4 as I have changed them all. When I put sticks 5 & 6 sticks in (or all 8) the PC wont boot and I get beep code 1-3-2 which I`ve looked up and is just a memory fault so not too descriptive.
I have another 3 of the AB-C sticks on the way just to rule that out but I don't think it'll make any difference as if they weren't paired well enough then the 16GB wouldn't work either. I`ve also ruled out a dodgy card by swapping them all out.
My bios is up to date at A11.
I just cant get it to boot with more than 16GB installed. I have removed the BIOS battery to reset it but no change.
I have also tried to put 2 pairs of the original 1GB cards in to see if its something to do with going over 16GB but it still won't have it.
Any advice from the knowledgable folk out there would be greatly appreciated.
I`ve had a play around with the new ram sticks that came this morning and no difference.
Not to be defeated I played about and have managed to install a pair in slots 7&8 which actually works giving me 24GB which may be enough but I`m still confused as to why putting the 2 sticks from 7 & 8 (which are obviously matched and working) into slots 5 & 6 causes the thing to not boot,
I have verified slots 5 & 6 work by putting a single stick into each on subsequent boots and they definitely show up in the bios set up but are not used as they are not a pair.
I have come to the conclusion that this is a bios fault and will try flashing the older A09 release and post back.
Have you managed to overcome 16Gb limiation ? We are having the same problem. I have 4GBx8 memory modules all the same . BIOS can see all of them but the total memory is 16GB shown.
Hi bortek, no sorry I have been too busy to do any more investigation into this but the 24gb is enough for now - see my 2nd post.
I take it you're using the same type of work station?
Please post how you get on
I managed to get 32Gb working. Here is how I did.
First thanks for a quick reply. I have done as you described in your post #2 to get 24GB or RAM and it indeed worked. More precisely I added 6x4GB memory modules into all slots except slot 5 and 6. Boot into BIOS, 24GB check!
Then I tested to add 2x1GB modules that I had left into slots 5 and 6. Bootup into BIOS wow 26GB
Now lets test another thing. Remove those 1Gb modules from slot 5 and 6 and put in two 4GB modules into slot 5 and 6. Boot into BIOS again see your 32GB.
Before I started I also did a reset of the RTC by connecting a jumper to RTCRST pinout on the motherboard, waited for 5-8 seconds , removed the jumper.
BIOS version I am running is 09.
All this looks like a bug in the BIOS and should be addressed by DELL and be easily fixable!
It would be interesting to hear if someone else can successfully reproduce this. Please report your experiences!
This kind of ram is VERY VERY VERY VERY VERY VERY VERY PICKY.
It must be in pairs and it must be matched all from the same vendor or it will blue screen beep beep beep bad not working ever.
It also requires active cooling aka a fan which may be optional on the system.
Max Ram 32 Gig
8 Memory slots.
Oh really , you think I dont know that? BTW I am not using Crucial,I use Kingston and they are all the same , from same vendor , from same batch, blah blah.
Dell - fix the bug!
They are not all the same and you have odd numbers not pairs.
You also cannot mix ranks in banks. The first 4 slots are NOT 1234
[White] DIMM 1
[Black] DIMM 5
[White] DIMM 2
[Black] DIMM 6
[White] DIMM 3
[Black] DIMM 7
[White] DIMM 4
[Black] DIMM 8
8 Modules isn't working due to them not matching in temp range and timing.
6 May work. Or The original 4 1 Gig followed by 4 4gig = 20
Of the 3 modules put one aside and add that ram to the 1st 2 slots
Of the 5 modules put one aside and add that ram to the next 4 slots
Leave the other 2 on the table.
Dell doesn't support 3rd party Ram or Ram not purchased from Dell.
Kingston doesn't support fake Kingston Ram.
Either way this is not a Dell problem.
You said you were not working for Dell
I am attaching dmidecode output. Scroll down to memory part or search for KINGSTON , you will see all the details. I think you should stop this flame.