Skip to main content

Review of Slot 1 Motherboards with Intel 440BX Chipset - Spring 1998

SDRAM Compatibility

The next test was the RAM compatibility test. I was using a 64 MB Corsair PC100 w/parity module which uses Samsung SDRAM chips (KM48S8030BT = 2Mx8x4, 4k refresh, mapping 14/11) and a 64 MB Toshiba PC100 module (TC59S6408FTL-80H = 4Mx4x4, 4k refresh, mapping 12/9). I also used two 32 MB Samsung PC66 SDRAM modules (module : SEC KMM366S403BTN-G0, chips : SEC KM48S2020BT-G10 = 2Mx8x2). It’s my experience that modules with 2Mx8 chips are running better than with 4Mx4 architecture. Corsair has always used 2Mx8.

These are the results :

PC100 Memory CompatibilitySamsung SPD PC66 running at 100 MHz ?
Abit BX6both memories stable up to 112 MHzyes, even at 112 MHz !!
AOpen AX6Bboth memories stable at fast settings up to 112 MHzyes, even at 112 MHz !! Change RAS-CAS delay to 3
Asus P2Bboth memories stable at fast settings up to 112 MHzyes, even at 112 MHz !!, Memory Timing to ’by SPD’
Chaintech 6BTMboth memories stable at fast settings up to 112 MHzyes, even at 112 MHz !! Change RAS-CAS delay to 3
DFI P2XBL (Yakumo Y686BX)both memories stable at fast settings up to 112 MHzyes, even at 112 MHz !!
DFI P2XBL/Sboth memories stable up to 112 MHzyes, even at 112 MHz !!
Elitegroup P6BX-A+both memories stable at fast settings up to 112 MHzyes, even at 112 MHz !! Change RAS-CAS delay to 3, SDRAM Leadoff to 4, other 2 values to 3 as well
Intel SE440BXboth memories stableno ! Board detects SPD and reports wrong spec, then system halts.
Iwill DBS100Samsung only !yes, at slowest memory timings
Microstar MS-6119both memories stable at fast settings up to 112 MHzyes, even at 112 MHz !! RAS to CAS delay ’3’
QDI Brilliant I / P6144BXboth memories stable at fast settings up to 112 MHzyes, even at 112 MHz !! RAS to CAS delay ’3’
Siemens D1064-Eboth memories stableboard wouldn’t even boot
Soyo SY-6BAboth memories stable at fast settings up to 112 MHzyes, even at 112 MHz !! RAS to CAS delay ’3’
Supermicro P6DBSSamsung at fast settings, Toshiba only at slow settingsyes, slow settings 3-3-3-4
Supermicro P6SBAboth memories stable at fast settingsyes, slow settings 3-3-3-4
Tekram P6B40-A4Xboth memories stable at fast settings up to 112 MHzyes, even at 112 MHz !! RAS to CAS delay ’3’
Tyan Tiger 100 S1832DLSamsung onlyyes, at slowest memory timings
Tyan Tsunami S1846both memories stable at fast settingsyes, even at fast memory timings
Tyan Thunder 100 Pro S1836DLUANboth memories stable at fast settingsyes, even at fast memory timings
Zida Tomato Board 6ABXboth memories stable at fast settingsyes, even at fast memory timings