Ace's Hardware meldt in dit bericht dat chipbakkers ALi en SiS door collega VIA beschuldigd worden van het op de markt brengen van buggy DDR chipsets. De twee zouden namelijk niet AMD's chipset design guidelines volgen waardoor instabiliteits problemen optreden bij snellere CPU's. ALi heeft hierop reageert met het argument dat het probleem niet bij hun, maar bij de mobo-fabrikanten zelf ligt. SiS heeft toegegeven dat er nog steeds bugfixing aan de gang is maar dit niet zal leiden tot vertragingingen. Beide fabrikanten verwachten deze maand nog te starten met de productie. Desondanks zijn Asus, MSI en Gigabyte niet denderend enthousiast over ALi en SiS DDR chipsets:
AMD is currently testing Athlon DDR chipsets from both ALi and SiS, and certification is expected to be complete early next year. The top three motherboard makers, namely Asus, MSI, and Gigabyte, reportedly reveal that after much effort, motherboards based on ALI and SiS DDR chipsets are not stable enough yet. Indeed, "perhaps a lack of experience" was cited as the reason that those chipsets are instable.Interestingly, there's also been a recent post to our Technical Message Board regarding some reported problems with SiS730S:
According to AMD athlon System Bus Design Guide's recommendation, to ensure optimal current return path, S2K Pad rings need to include decoupling from VccCore to Vss, i.e. each S2K signal must be adjacent to a VTERM (CPU Core Power) signal or a GND (Ground) signal in the S2K quadrant.
Figure shown (as attached) is indicating that SiS730S is not following such recommendation, which could cause poor signal quality.
I am worrying that this issue will generate bigger problem due to instability of signaling, especially if the CPU signal sent to SiS730S is also unstable (either too strong or too fast).
Under system tests, system uses SiS730S might encounter system crashes especially when is tested under different CPU host frequencies and clock ratio.