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Old 22-08-2005, 10:57 AM   #1
dinos22
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DDR1 to DDR2 converter :eek:

Gigabyte is going for gold once again after the RAMDisks....they have a DDR1-DDR2 RAM converter

http://www.hkepc.com/hwdb/ddr21-gigabyte-1.htm

I used babelfish webtranslation....my chinese is not up to scratch
The veteran does not die! Technique fine GC-DDR21 creates the DDR memory body new turning point again

Although the present memory body repeatedly reduces prices, but regarding still occupied the mainstream status DDR to say that, single scroll 512MB capacity DDR400 probably asked a price about almost 1,,500 Yuan 新台幣, was the edition which the big plant promoted, was at most adds 100 Yuan again, uses the speech by the present mostly custom which Dual the Channel double channel pattern selected and purchased, group of two 512MB altogether 1GB capacity DDR400 also almost spend 3,,000 Yuan 新台幣 to do decides. But if is the DDR II memory body before, although the present price position compares said was already falls many, but still had slightly to be higher than the existing DDR memory body selling price, by the DDR II 533 specifications, the 512MB capacity editions, the general single scroll also had to spend on above 1,,700 Yuan, if chose has the edition which the brand the big factory promoted, even were higher specification - for example DDR II 667, 800 perhaps Gao Shihmai the specification, that price on not only were many the DDR memory body 10%~15% price difference.

The memory body corresponds which by the existing main engine board overhead construction supports said that, the AMD series at present still was takes the large amount by the DDR memory body, the correspondence certainly is (CPU and the main engine board DDR400, 433, 450, 466, 500, 533, 550, 566, 600, whether whicheven Gao Shihmai edition must regard uses corresponds decides), but such condition will not represent the future perhaps the next year in 2006 is such pattern as before, according to the estimate, AMD extremely will have the possibility in clearly old to enter the DDR II bosom, one but so, how will the present stage DDR memory body be supposed to manage? Gets rid does not use? Or accesses the net the auction, trades a cost to come back the subsidy?

Corresponds to the Intel series overhead construction, certainly this question consideration has been short some, Intel unceasingly promotes the new chip group in the situation, the before i915/925 series also will transfer by the i945/955 series which newly will draw a charge substitutes, is different to the i915 series will be, the i945/955 series all already was comprehensive uses the DDR II overhead construction, but, originally on already was using the i865/875 series to play the family? Before also gets rid along with the main engine board promotion DDR memory body?

If has one kind to switch over the place, in front of picture CPU just changed the Socket slot the transition way to be same, was allowed to let the DDR memory body also continue to use on the DDR II slot, that all things OK, both could not waste the original high price purchase the DDR memory body, and could smoothly promote to the DDR II main engine board platform in, moreover also saved other purchase memory body the expense, was counted at one fell swoop a way, but, had this kind of thing?

Ha-ha, some! The technique fine science and technology new design"DDR II revolution of DDR memory body expands 模組"may let your DDR memory body continue for you to devote life to, this section "GC-DDR21" may let on the main engine board the DDR II slot, supports the DDR memory body, the way is first installs this section GC-DDR21 in on the main engine board DDR II slot, then inserts again the DDR memory body in this GC-DDR21 模組 above, like this completed DDR II revolution of DDR overhead construction to utilize.


Technique fine newest research and development secret weapon - GC-DDR21, calculated does not have the DDR II memory body not to relate

The following chart shows, directly installs GC-DDR21 above the originally DDR II slot, then wanted the DDR memory body which used to install again above the GC-DDR21 slot may, after basically installed can present the quite high condition(because was equal to was two time of memories bodies highly), but should also in the permission scope, be supposed not to be able to be unable in the cabinet to install, so long as paid attention to some small cabinets to have the possibility to meet the card to the disc machine end situation to be allowed.


Carefully looked GC-DDR21 side, may see the indication has DDR and the DDR II inscription, above indicated the expansion slot is supports the DDR memory body the specification, but the underneath golden finger uses the DDR II specification, therefore may install on the DDR II slot, moreover, actually installs after on main engine board DIMM, may see GC-DDR21 is with the card tenon joint, is matches is very perfect.


Everybody possibly can compare the question is, DDR is the 2.5V working voltage, but DDR II is the 1.8V working voltage, such switches over may? Can have the question? How then also is controls, the penetration extra installs control chip?

Indeed, has the difference in this part, but technique fine science and technology engineer has overcome this question, penetrates the line and above the chip group's signal, made has been allowed to switch over DDR and DDR II GC-DDR21, from the GC-DDR21 slot, was allowed to discover provided the working voltage indeed was 2.5V which the DDR memory body used, but in above main engine board DIMM slot, then was DDR II standard 1.8V.


In the GC-DDR21 another side, may see the indication has PCB Made in Taiwan the inscription, this is PCB which we does, but above PCB also the 正方 side has gotten this funds switches over 模組 product serial number - GC-DDR21, moreover also may see is the 94V-0 fireproof material quality.


After has looked at this section product, believed everybody should very much be eager to try wants to do a group with look to, but, at present this section GC-DDR21 also in research and development stage, although already was allowed actual to utilize, but or belonged to Sample the ES project edition, at present the edition was 0.1 edition, in addition, because considered to the correspondence in various chips group with various overhead constructions platform in compatibility, even also had the possibility to produce"to mix inserts"the condition, these possibly also needed some time to make the optimization the adjustment,the present stage known was may use in the VIA chip group platform (PT880), As for correspondence in Intel chip group platform partial, possibly also needs some time to make the further research and development(to correspond i915/925/945/955), but believed should the time which meets with us not be able too to be long(it is said is next edition can support...)Once may continue in the existing Intel chip group platform to continue to use the original DDR memory body, feared the DDR memory body the life to be able to continue to lengthen, if were invariable under the condition in the price which perhaps continued to glide down, that this section GC-DDR21 possibly could be the quite marketable new fresh fruits and vegetables!

Last edited by dinos22; 22-08-2005 at 11:45 AM.
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Old 22-08-2005, 11:23 AM   #2
eva2000
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woah now that's kind of cool if it works
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Old 22-08-2005, 11:29 AM   #3
dinos22
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LOL time to buy more RAM eva
By eva2000
woah now that's kind of cool if it works
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Old 22-08-2005, 11:48 AM   #4
dinos22
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.........
DDR 2 to DDR Converter
One's own tests Gigabyte GC-DDR21
Article: North clear sky @ next platform

DDR 2 will substitute for DDR to become the system memory body mainstream already the fact which will be struggles, but hearsay Gigabyte will promote DDR 2 to DDR Converter, whether also will become existing DDR the dawn which will promote with the family, the HKEPC editorial department one's own will look for Gigabyte GC-DDR21 to make the one's own test.

DDR and DDR2 distinction

The field official memory body specification all is by JEDEC-- Joint Electronioc Device Engineering the Council formulation, this has included DDR and DDR2, in the specification the DDR official maximum speed is DDR 400, but the DDR 400 after speed hands over by DDR 2 meets holds, but because the DDR system regulation is progressive, the DDR speed completely has already surmounted the official estimate, therefore the present appeared supervelocity DDR 550, but actually was the non- official specification. JEDEC had recognized DDR 2 for the future mainstream system memory body, will collect a row of class for the future high speed system to finish the preparation, moreover will obtain semiconductor giant's the and so on the Intel, AMD, VIA, nVidia, SiS, Samsung, Hynix, Elpida, Infineone support.

Although on the name only misses 毫 the thousandth of a Yuan, but DDR2 and DDR2 actually are completely incompatible, the DDR2 connection is 240Pins compared to DDR 184Pin long, moreover voltage also compared to DDR 2.5v lower, only has 1.8v but under the arteries compared to the DDR low half power loss, these all are the DDR2 memory body merits, but the shortcoming is the DDR length of delay quite high, the potency is lower under the arteries.

Not merely is incompatible in the specification, actually DDR and DDR2 have the big distinction in the technology. We use the memory body is the penetration stops the charge and the electric discharge movement recording material, when former generation SDRAM memory body core arteries on equally to transfer rate, but each Mhz only can have transmits 1 Bit the material, uses 1 Bit Prefetch. Therefore the SDRAM 100Mhz frequency width is 100Mbps. When along with the system internal component speed promotion, to the memory body speed request increase, purely promoted the memory body the arteries already can deal with the demand, luckily promptly developed the DDR technology.

DDR and the SDRAM distinction lies in traditional SDRAM only to be able to charge that moment deposit and withdrawal material, therefore each charges the electric discharge movement, only can read-write, but DDR actually technical promotion to when charge and electric discharge all can deposit and withdraw the material, therefore each Mhz has two times of deposits and withdrawals movements, therefore DDR can in under the identical time arteries the potency enhance a time compared to SDRAM, but 100Mhz DDR actually may reach to the 200Mbps access speed, because each Mhz all must have two times of materials deposits and withdrawals, therefore DDR each Mhz can transmit 2Bit, is called 2Bit Prefetch, When DDR pellet the arteries every time promote 1Mhz, the obtained effect is SDRAM two times.

But the DDR 2 pieces are inherit DDR and make the improvement, similarly could when each charge electric discharge all can deposit and withdraw, but DDR 2 has actually improved I/O the Buffer part, formerly remembered body pellet when 脈相 is equal to I/O Buffer the time arteries, when DDR2 I/O Buffer can promote to actually remembers the body core an arteries time, but the DDR 2 memories realized transmits 4Bit in each Mhz the material for I/O Buffer, transmits 2Bit more than 1 times compared to DDR each pen, therefore when identical memory body core under the arteries, the DDR 2 memories experiences a DDR speed is quicker than time, This technology is called 4Bit Prefetch. The DDR 2 future will promote the speed the space to be able to be stronger than DDR, because every time will promote 1 Mhz DRAM the time arteries, obtained will arrive the effect actually will be traditional SDRAM four times. But we frequently mention the DDR 2 time arteries are Clock Frequency, but is not DRAM Core Frequency, therefore DDR 2,533 time arteries or 266Mhz.

Gigabyte DDR2 to DDR Converter: GC-DDR21

In the chart is Gigabyte GC-DDR21 DDR 2 to DDR Converter, the edition is REV 0.1 belongs to the project sample the stage, the upper extreme is DDR the memory body 184pins connection, middle PCB only is walks the line partial DDR2 to receive on the DDR connection, but the lower extremity is DDR2 the specification 240pins gold finger, on PCB any electronic components and so on chip, resistance, has not been allowed to say is pure PCB at the same place, actually does Gigabyte is how make the DDR memory body operation on the DDR2 memory body slot! ?

PAGE2
DDR 2 will substitute for DDR to become the system memory body mainstream already the fact which will be does not struggle, but hearsay Gigabyte will promote DDR 2 to DDR Converter, whether also will become existing DDR the dawn which will promote with the family, the HKEPC editorial department one's own will look for Gigabyte GC-DDR21 to make the one's own test.

GC-DDR21 only is 8VT880P Combo lives! ?

According to the Gigabyte official expression, GC-DDR21 now only can use in Gigabyte GA-8VT880P on the Combo main engine board, uses north VIA PT880 Pro the bridge chip to match 撘 south VT8237R the bridge chip, the Socket 775 processors connections and support highest 800MHz FSB, simultaneously also supports Intel Dual Core Pentium the D processor. North VIA PT880 Pro bridge chip in order to attract the promotion user, therefore at the same time the chip in constructs AGP 8x and the PCI-E cartography connection, after lets the existing AGP indicator user use the main engine board, also will be able to promote the PCI-E indicator in the future. But had to pay attention is north VT880Pro the bridge in has only constructed 4 PCI-E Lanes, therefore its PCI-E cartography connection speed only had 1GB/s but non- PCI-E x16 4GB/s, although under general Xie Hsiangtu, the potency distinction not too was certainly big, but when used higher Xie Hsiangtu with the family or starts AA and AF, could have the potency distinction which comparatively demonstrated. VT880Pro AGP and the PCI-E cartography connection is may coexist, therefore may separately meet piece of AGP and a piece of PCI-E indicator with the family, achieves the highest four demonstrations output.

Simultaneously supports DDR and DDR2

Gigabyte GA-8VT880P Combo except simultaneously supports two kind of different demonstrations connections, but also simultaneously supports two kind of different memories bodies, including DDR and DDR2. All because north VIA PT880Pro the bridge chip memory body control can simultaneously support DDR and DDR2, the convenient merchant connects with the period in the memory body type, voluntarily decided uses DDR perhaps the DDR2 memory body, and high supports DDR400 and the DDR2 533 speeds and Dual the Channel memory body technology. But uses the family certainly not to be able simultaneously to use DDR and DDR2, only can choose meets one kind of memory body type, therefore truly can simultaneously use on Gigabyte GA-8VT880P Combo the DIMM number only has 2. But GC-DDR21 may insert Gigabyte GA-8PT880P on the Combo main engine board, may meet the main engine board 4 above the DDR memory body, makes many to have four DDR memory body the promotion to be allowed thing it to use with the family.

PAGE3
GC-DDR21 asking with answers

1: GC-DDR21 can be compatible all supports DDR2 the main engine board! ?

Cannot, because GC-DDR21 certainly is not really turns the DDR memory body DDR2 the operation pattern, therefore it certainly cannot regard as the true DDR2 memory body use, moreover Gigabyte disclosed in the document, when GC-DDR21 inserts on the main engine board which does not support, possibly can create the hardware damage.

2: GC-DDR21 completely supports simultaneously supports DDR/DDR2 the chip group, for example Intel i915 series! ?

Cannot, the GC-DDR21 design be designs by the VT880Pro memory body controller, therefore certainly cannot operate outside the VT880Pro chip group, refers to GC-DDR21 according to Gigabyte now is the real diagnosis nature, if in the market to supports i915 series DDR to DDR2 Converter to have the demand, Gigavbyte very possibly promotes supports the i915 series the edition.

3: Why do I only use 2 DIMM and put on GC-DDR21, but cannot start! ?

Because GC-DDR21 only can when on main engine board DDR DIMM had inserts the memory body, can correctly recognize in DDR2 DIMM inserts GC-DDR21, moreover Gigabyte also suggested is using GC-DDR21 with the family simultaneously to use four same memories bodies.

4: GC-DDR21 meets 附連 sells together in Gigabyte GA-PT880P Combo! ?

Cannot, according to Gigabyte express GC-DDR21 temporarily only calculated independently sells, if has the need with the family to be possible to Gigabyte perhaps the business agent inquiry, the temporary selling price is undecided.

5 ︰ Can have GC-DDR12 the possibility! ?

Can find 240pins in the 184pins DDR connection DDR2 to walk the line! ?

PAGE4


Potency test

DDR2 533 VS DDR 400 @Gigabyte GA-PT880P Combo

DDR2 533 x 2
CL 4-4-4-12

DDR 400 x 2
CL 2.5-3-3-6
PCMark 05


Total

4,851

4,822
CPU

4,438

4,402
Memory

3,323

3,136
Graphic

5,561

5,494
Super PI


1C$m

50s

48s
4M

4m02s

3m56s
Sandra 2,005 SP1


ALU

12,253

12,372
FPU/iSEE2

4,023/6,909

40,03/6,921
Int

31,531

31,505
Float

37,377

37,335
3DMark 03


Default

14,716

14,225
CPU Test

844

831
3DMark 05


Default

6,169

6,094
CPU Test

4,421

4,354

We DDR2 533 CL4 to definitely DDR 400 CL2, discovered two the difference is not certainly big in the potency, in addition VT880Pro highest only supports to DDR2 533, therefore old has DDR400 to promote PT880Pro with the family, suggests DDR400 which or uses old has to decrease the promotion cost. Now supports AGP and DDR400 Intel Dual Core are not many, Gigabyte GA-PT880Pro Combo also is a fair price promotes Intel Dual Core good electing.

GC-DDR21 DDR400 x 4 VS DDR 400 x 2

GC-DDR21
DDR 400 x 4

DDR 400 x 2

PCMark 05


Total

4,836

4,822
CPU

4,471

4,402
Memory

3,112

3,136
Graphic

5,527

5,494
Super PI


1C$m

48s

48s
4M

3m56s

3m56s
Sandra 2,005 SP1


ALU

12,331

12,372
FPU/iSEE2

4,014/6,903

40,03/6,921
Int

31,560

31,505
Float

37,392

37,335
3DMark 03


Default

14,231

14,225
CPU Test

833

831
3DMark 05


Default

6,103

6,094
CPU Test

4,362

4,354

Many people worried uses the rotational speed card, can drop the system potency, but we discovered uses GC-DDR21 and 4 DDR400, certainly has not appeared the large potency drop, moreover extremely stably completes all tests.



Latter records ︰

GC-DDR21 may say is an item of experimental product, Gigabyte is for when once more will appear in the future the memory body generation will connect with, can provide the more perfect double memory body type the support plan, although the present only appears on Gigabyte GA-PT880P Combo, but will not remove can appear in the future in the more main engines board model. Can be able to support the main engine board two section memories bodies at the same time, also cannot reduce the DIMM quantity which simultaneously uses, is uses the family to bring the convenience, is worth as soon as approving.

North clear sky @ next platform
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Old 22-08-2005, 01:04 PM   #5
Kenetixx
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Looks interesting i wonder how well it works for everyday ppl not there testing
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Old 22-08-2005, 02:31 PM   #6
Crocodile
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Looks like there would be considerable flexing involved in fitting them converters/RAM. Might come in handy for peeps who want 2x1Gb stix of the faster DDR2 mem.
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Old 22-08-2005, 09:15 PM   #7
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yikes that translation hurt my brain
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Old 22-08-2005, 09:24 PM   #8
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pretty cool
maybe we can hold onto our ddr temporarily while we get ddr2 a64's
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