As the 16GB sticks, the 32GB versions of the Sabrent Rocket 4800Mhz U-DIMM memory modules have proven to be very overclockable and are the only way to go if you need both speed and huge capacity. By only raising the stock voltage to 1.25V, we managed to get 5800MHz fully stable and the modules barely got warm after the intensive TM5 stress tests.
CPU: Intel i7-12700K @ Stock
CPU Cooler: be quiet! Pure Loop 240mm AIO
Motherboard: EVGA Z690 CLASSIFIED
RAM: currently tested kit
Video: XFX Radeon RX 5700XT Ultra THICC III
Power Supply: Cooler Master 850W
SSD: Silicon Power US70 1TB PCIe 4.0
Case: Cooler Master ATCS 840
The pre-programmed timings and frequencies can be also found by using AIDA64; the DRAM IC manufacturer is listed as SK hynix:
As you have probably noted from the first screenshot, these modules do not come with a pre-loaded XMP profile, so the motherboard will automatically go for the most compatible timing set after the first boot-up. Our Z690 CLASSIFIED from EVGA went for the tightest timings involving the 4800MHz frequency, which are 40-40-40-76; we then went ahead and tested with TM5 the stability:
Naturally, we then went ahead and checked out how far we can go and in order to be on the safe temperature/stability side, we upped the voltage to a maximum of 1.25V as well; 5200MHz was perfectly doable, at the exact same timings!
We were quite surprised to see that the 5400MHz test has passed as well:
Well, this is interesting…the kit was marketed at 4800MHz but can do 5600 this easy?
To our surprise, at the stock clocks 5800MHz was perfectly doable as well:
This is a new one! 4800MHz-rated kit running 6000MHz fully stable at stock timings…there you have it:
6000MHz was quite an impressive end of the road, because with 6200MHz we started having issues booting up.
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