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"BH" n00b question

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mercuryscythe

Registered
Joined
Apr 11, 2004
I have only ever come across this in this forum. what is BH? people keep going on about "BH5" and "BH6" what is BH?
 
can you expand on that? i have still no clue what it is.

(Sorry if this sounds as if im being stupid)
 
Like why they are so revered? It is because they maintain tight timings (2-2-2-5/6) over 200 FSB up to about 250 or so with enough volts. No other memory chip can do 2-2-2-6 over 200 with any reliablity, and with higher latency DDR2 comming out, it will never be replicated again.
 
mercuryscythe said:
can you expand on that? i have still no clue what it is.

(Sorry if this sounds as if im being stupid)

Its the type of chips that are used on the RAM.
 
k.... Ill explain it to you:

Winbond is a major manufacturer for high grade research equipment.

They recently dabbled in the DDRAM buisness. Their *superior* techniques have allowed them to create 3(4) infamous DDRAM types:

The first was BH6. It was the first *true* low latency RAM. It ran at 6ns (PC3200) using the impressive timings of 2-2-2-11

Its manufacturing process was quite expensive for that RAM, so they decided to up the speed gradient to maximize profits.

Thus the wildly populat BH5 was borne. BH5 is 5ns (PC3500) and uses 2-2-2-11 as well. However the improved process allowed it to take *INCREDIBLE* amounts of stress.

Real world tests show that BH5 is fully capable of handeling 3.6v for everyday use :eek:

However profits were still to low... so they split into 2 venues...

The high end would be BH4.. but they never released it. Initial test samples (from what Ive heard) would do 250mhz 2-2-2-11 @ 2.4v (which is f*ing amazing). However they never went into production

The low end would be CH5... or BH5's replacement. CH5 is *considerably* cheaper to make, but is unable to run at 2-2-2-1... it can only run @ 2-2-3-11. Also the process lacked the ability to soak voltage like BH5. In fact it HATES voltage.

Unfortunatly Winbond continues to lose money...thus they stopped ALL production. They are forever done with the DDRAM buinsess :cry:

Thats the WB deal in a nutshell
 
Sentential said:
k.... Ill explain it to you:

Winbond is a major manufacturer for high grade research equipment.

They recently dabbled in the DDRAM buisness. Their *superior* techniques have allowed them to create 3(4) infamous DDRAM types:

The first was BH6. It was the first *true* low latency RAM. It ran at 6ns (PC3200) using the impressive timings of 2-2-2-11

Its manufacturing process was quite expensive for that RAM, so they decided to up the speed gradient to maximize profits.

Thus the wildly populat BH5 was borne. BH5 is 5ns (PC3500) and uses 2-2-2-11 as well. However the improved process allowed it to take *INCREDIBLE* amounts of stress.

Real world tests show that BH5 is fully capable of handeling 3.6v for everyday use :eek:

However profits were still to low... so they split into 2 venues...

The high end would be BH4.. but they never released it. Initial test samples (from what Ive heard) would do 250mhz 2-2-2-11 @ 2.4v (which is f*ing amazing). However they never went into production

The low end would be CH5... or BH5's replacement. CH5 is *considerably* cheaper to make, but is unable to run at 2-2-2-1... it can only run @ 2-2-3-11. Also the process lacked the ability to soak voltage like BH5. In fact it HATES voltage.

Unfortunatly Winbond continues to lose money...thus they stopped ALL production. They are forever done with the DDRAM buinsess :cry:

Thats the WB deal in a nutshell

You must be a teacher, that was beautiful... lol *sniffs*

So why doesnt Winbond close all production BUT the BH-5 chip RAM? Who cares if they lose money, oh yeah make it much lower in price too..... ( a dream come true .... )

:D
 
Aparently, something unexpected happened during the die shrink, and they don't even know why the BH series worked the way it did.
 
You must be a teacher, that was beautiful... lol *sniffs*

So why doesnt Winbond close all production BUT the BH-5 chip RAM? Who cares if they lose money, oh yeah make it much lower in price too..... ( a dream come true .... )

Not quite;) ...Im actually I pilot.. I just have a knick for helping ppl understand.

Winbond lost their *** in the DDRAM buisness because of pplz like Infineon and Hynix. Their process(s) are considerably cheaper... plus they dont use american labor.

Even if they could sell BH @ $90 for 256MB...who would buy it? Dell certianly wouldnt... and by winbond's size...thats enough to drive them out of the market:(
 
Sentential excellent explanation though your slightly mistaken. bh-6 or 6ns chips are officially rated for ddr 333 or pc 2700 whilst bh-5 or 5ns are rated for pc 3200 or ddr 400. Other thatn that great input, too bad bout the bh-4's that would have been amazing. Just in case your wondering the calculation is 1000/ns rating, thus 1000/6= 166*2 (ddr) = ddr 333 or pc 2700, same thing for ddr 400 and ddr 500 if they released the 4ns chips.
 
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