Note on archived topics.
05-14-2014 02:54 PM
we wanted to upgrade our memory from 2GB to 4GB by adding another 2GB memory module.
we followed the requirements from this HP document :
and ended up buying Transcend JM1333KLN-2G, which following the specs on the manufacturer's site, is compatible with our PC. this is from Transcend's site:
after the module installation, the PC won't boot, beeping a short beep followed by a long one (memory problem).
i tried the same module on an identical HP Pro 3010 PC, with the same results.
i tried connecting only the Transcend module , with the same results.
right now i have 2 worthless Transcend modules.
Ulpan-Or International LTD
05-14-2014 04:59 PM
In comparing the two spec pages, I suspect the Transcend module is not compatible because of it's CAS latency. The PC memory spec says:
support CAS latency 9 DDR3 1333 MHz (9-9-9 timing)
And the Transcend says:
Programmable /CAS Write Latency (CWL) = 7
So the PC expects a 9 and the module only offers a 7. That is my hunch anyway.
05-14-2014 05:42 PM
Actually there are two references to CAS.
One : Programmable /CAS Write Latency (CWL) = 7
The other one(and relevant one) is Programmable CAS Latency: 6, 7, 8, 9
Timings are not related to CWL AFAIK
05-15-2014 08:27 AM
Hmmm...The Transcend specs don't seem to list all the info. You might try scanning your PC at http://www.crucial.com/ and see what memory it says you need and see if it is the same as the Transcend.
05-15-2014 08:42 AM
I know how frustrating it can be when things like this happen. Sorry for the experience you are having with trying to upgrade the memory on it.