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View Full Version : Incredible DDR2 Bandwidth!!!


mr_knowitall15
10-17-2005, 11:15 PM
Today, after work i went over to Sirbarbarosas house. He was installing a cool watercooling kit in his new rig consisting of a Gigabyte 955x mobo, 2x512 Corsair PC6400, and a 6600 Passive cooled (Asus i think) vid card. He has two CPUS for this rig, and 830, and a 640 that seems to be a real Jesus, as it was brought back from the dead.
A while ago, He found this setup with the 640, a 250 GB HDD, both CD-RW and DVD-RW drives for a helluva good price on Ebay. Well, when he got it in, Good ol UPS MASSACRED IT!!! It was obviously dropped a time or two, because teh heatsinks retaining bolts were snapped, and the heatsink AND the 640 were at the bottom of the beautiful silverstone case. The heatsink Pulled the CPU Through the sockets retaining bracket, because as i said, the proc was out, but the socket was still clipped shut!!! anyway, the ram had a little dent on top, no big deal, and it works fine. the CPU even has a little nick in the IHS, but no big deal apparently as it fired up tonight, and at about 38 degrees idle, 42 or so under a load. So long story short, with the money UPS paid because the package was insured, he got a new mobo of the same kind, an 830, and tryed everything else and it seemed to be just fine.
SO today, i go over after work and we start playing around with it, we effortlessly OCed to 3.84 on stock volts, which made for a 34.133 Sec Pi run (only .4 secs away from what i get at almost 4.1 :mad: ) So we turned up the CPU voltage a bit once we found instability, and soon found a 255 FSB, for around 4.1, and the memory was at 340 Mhz, and after a little testing and memory tweaking, we got this :
http://i15.photobucket.com/albums/a351/mr_knowitall15/9000.jpg
Seems kinda high, but the system IS running really well... More to come soon hopefully, Hes supposed to have a SS unit coming in from PC_ICE soon :stick: , also, when we get more time, well do more PI and Some 3DMarks and PCMarks. Maybe we can convince anothe guy to let us borrow his PCI-E 6800GT for some more serios 3D and PCMark scores...

mozzartusm
10-17-2005, 11:41 PM
Today, after work i went over to Sirbarbarosas house. He was installing a cool watercooling kit in his new rig consisting of a Gigabyte 955x mobo, 2x512 Corsair PC6400, and a 6600 Passive cooled (Asus i think) vid card. He has two CPUS for this rig, and 830, and a 640 that seems to be a real Jesus, as it was brought back from the dead.
A while ago, He found this setup with the 640, a 250 GB HDD, both CD-RW and DVD-RW drives for a helluva good price on Ebay. Well, when he got it in, Good ol UPS MASSACRED IT!!! It was obviously dropped a time or two, because teh heatsinks retaining bolts were snapped, and the heatsink AND the 640 were at the bottom of the beautiful silverstone case. The heatsink Pulled the CPU Through the sockets retaining bracket, because as i said, the proc was out, but the socket was still clipped shut!!! anyway, the ram had a little dent on top, no big deal, and it works fine. the CPU even has a little nick in the IHS, but no big deal apparently as it fired up tonight, and at about 38 degrees idle, 42 or so under a load. So long story short, with the money UPS paid because the package was insured, he got a new mobo of the same kind, an 830, and tryed everything else and it seemed to be just fine.
SO today, i go over after work and we start playing around with it, we effortlessly OCed to 3.84 on stock volts, which made for a 34.133 Sec Pi run (only .4 secs away from what i get at almost 4.1 :mad: ) So we turned up the CPU voltage a bit once we found instability, and soon found a 255 FSB, for around 4.1, and the memory was at 340 Mhz, and after a little testing and memory tweaking, we got this :
http://i15.photobucket.com/albums/a351/mr_knowitall15/9000.jpg
Seems kinda high, but the system IS running really well... More to come soon hopefully, Hes supposed to have a SS unit coming in from PC_ICE soon :stick: , also, when we get more time, well do more PI and Some 3DMarks and PCMarks. Maybe we can convince anothe guy to let us borrow his PCI-E 6800GT for some more serios 3D and PCMark scores...

Si Sandra is really buggy! I like it less and less for this reason.

Vapor
10-17-2005, 11:44 PM
Mrknowitall....do you mind listing some system/RAM settings? That does look like the PLL bug is prevailing again.

crotale
10-17-2005, 11:49 PM
I find it really hard to believe that the CPU was pulled out of the socket without opening the clip (Socket 775). The force required for that would first of all make the CPU unworkable and secondly, the retention mechanism would come of the mobo before the CPU would be extracted through the clip.
Or I missunderstood you on how it all happend.

Also, try to compare it some some other chipsets than SIS or VIA.

FUGGER
10-18-2005, 12:41 AM
Bandwidth efficiency 119%

It should be 78% +- 1% on that system. Known bug to falsely inflate numbers beyond realistic.

http://www.xtremesystems.org/forums/showthread.php?t=68511

IluvIntel
10-18-2005, 03:41 AM
Bandwidth efficiency 119%

It should be 78% +- 1% on that system. Known bug to falsely inflate numbers beyond realistic.

http://www.xtremesystems.org/forums/showthread.php?t=68511

That bug is with 955x chipset or Sandra?

Vapor
10-18-2005, 03:43 AM
Chipset.

mr_knowitall15
10-18-2005, 11:40 AM
hmm, i figured it was too good to be true. Anyway, The retention bracket of the socket was open, even though the little lever was locked down. the heatsink took the CPU with it via thermal paste i think. Anyway, the memory really wasnt anything too crazy, just around 680ish MHz, at stock 4-4-4-12 timings, 2.2V. But now it looks like we have a lot more testing to do. It seems to be a nice chip, it runs nice and cool, and OCed to 240 FSB with NO effort whatsoever, stock volts etc. I cant wait till he recieves that SS ICE unit though... We'll REALLY put that Chip thru its paces. :slapass: .
One question, has anyone else here had any experience with this Gigabyte 955 board? Any ideas on how well the little card thing thats supposed to make it 8 Phase works? It seems to be a nice board with plenty of tweaking options, except it only goes to 1.6V on the CPU. (Still should be plenty though) Anyway, more to come in the next few weeks.