What is under the Heat Spreader?
Once I removed the heat spreaders I found one of the newest Samsung IC’s on the market for high speed memory modules — Samsung TCCD Revision F’s. The full part number was found to be K4H560838F-TCCD. For those of you who don’t know, these IC’s from Samsung are in the TSOP form factor and are rated by Samsung at 4ns. Actually, the Samsung TCCD IC’s come rated at 500MHz, but with relaxed timings of 3-4-4. Something else that was also noted as “interesting” were the PMI labels. I’m guessing that PQI is using up their old labels and that is why these PQI modules have PMI labels under the heat spreader. When we asked PQI about the PMI labels on the memory they confirmed our guess and told us that they were using up the old PMI labels and waiting on the PQI labels to be made. No matter what labels (PQI or PMI) are on your modules your warranty will still be intact, so no worries there. We took the heat spreaders off our Corsair XMS 3200 XL (bottom module) so we could compare the PCB to the
