Upgraded Ram Help

[Cod3waX]

HP Compaq dx7500 micro tower on windows 7 64bit

I'm having trouble using 1x4GB stick in the machine
It will not see or use it i just get a black screen no beeps
I have put back in the old ram and sat the 4GB in next to the old ram and ran SIW
SIW shows me it sat in slot 2 but the system wont use it

https://dl.dropboxusercontent.com/u/...25/Capture.PNG <---Edited

Much help needed cheers

[AirShowNut]

Ram in a pc HAS to be of a type and speed that is listed as compatible with the motherboard or else it will be ignored as if it's not there at all.
Check the motherboard specifications online by searching for the name and version number printed on the motherboard, this will tell you the type and speed of RAM that it will accept. Then check that the RAM you have meets the specs listed. If the RAM does not match then you will have to change it for a stick that meets the specs.

[Cod3waX]

Ok thanks for that
I think i have just spotted the problem with DRAM Frequency and Memory Timings
Edited original capture link

To me it looks like the timing is set wrong to work at 400mhz
should be a 6 not a 5 at the beginning

[cunny]

So by last post is it booting?

I would also check for motherboard bios updates for memory updates

[Cod3waX]

yes using the 2x1gb kingston i can use the system but just the 4gb on its own gives a no show

bios is on latest i could find 5.14

[cunny]

Whats the main board mfr and model number?

[cunny]

Ram in a pc HAS to be of a type and speed that is listed as compatible with the motherboard or else it will be ignored as if it's not there at all.
Check the motherboard specifications online by searching for the name and version number printed on the motherboard, this will tell you the type and speed of RAM that it will accept. Then check that the RAM you have meets the specs listed. If the RAM does not match then you will have to change it for a stick that meets the specs.

That is absoloutly bang on. If, the ram in question does not support the RAM then it wont boot. However vendors sometimes update their bios's to acccept more memory, Hence why i asked if the bios is upto date.

So search motherboard details, check supported RAM and that there are no more bios updates.

[Cod3waX]

IPIEL-LA REV 1.03 Motherbaord

[cunny]

Dual channel memory architecture
Four 240-pin DDR2 DIMM sockets
Supported DIMM types:
DDR2-800
DDR2-667
Non-ECC memory only, unbuffered
Supports 2 GB DDR2 DIMMs
Supports 8 GB on 64 bit PCs
Supports 4 GB* on 32 bit PCs

http://h10025.www1.hp.com/ewfrf/wc/genericSoftwareDownloadIndex?cc=us&dlc=en&lc=en&softwareitem=pv-60387-1

[Cod3waX]

I read the specs from HP http://h20564.www2.hp.com/hpsc/doc/p...1574818#N10013

Technology and Features

Memory Type PC2-6400 DDR2 SDRAM (800MHz) non-ECC Up to 16 GB system memory standard.

4 slots on the board so assumed it could handle 4GB sticks

[cunny]

The link i posted would make more sense as the system is not booting, personally id send it back and populate with 2gb dimms

[Cod3waX]

Its just very strange how the spec shows capable of 16GB and my SIW showing the same
Thanks for the help guys
Am gonna have to try this ram in another machine if i can find one

[AirShowNut]

I read the specs from HP http://h20564.www2.hp.com/hpsc/doc/p...1574818#N10013

Technology and Features

Memory Type PC2-6400 DDR2 SDRAM (800MHz) non-ECC Up to 16 GB system memory standard.

4 slots on the board so assumed it could handle 4GB sticks

The motherboard probably will accept four 4gig sticks BUT they HAVE to be two matched pairs.
I,E two sticks could be used of 4gigs each but they must be a pair that are the same in every respect.
The same is true if you put four sticks in, all four must be identical in every way.
Not a lot of people know that memory sticks actually communicate with each other once initialised therefore if they are sticks that do not match they cannot communicate and so will not function.
One or more sticks would be treated by the system as though they are not installed. This could be your issue.

[Cod3waX]

Before i started upgrading the dx7500 it had only 1GB of Kingston
And in my personal machine i have 3GB installed 1 matched pair Elpida and the Kingston from the upgrade and its seeing and using it

https://dl.dropboxusercontent.com/u/74958525/siemens.PNG

Also at Cruical all they offer for dx7500 is 4GB kit
where's the 16GB kit?

http://uk.crucial.com/gbr/en/compatible-upgrade-for/HP-Compaq/dx7500-business-pc

[AirShowNut]

I wouldn't place too much confidence in the Crucial memory scanner.
I have a totally different pc to you and on running the scanner I got the same results for memory as you did.
Go by what the motherboard manufacturer states on their web site, I always do and have never had issues.