Posted: Fri Jan 04, 2008 3:50 am Post subject: Xp Pro (sp2), does'nt see cpu overclock!
I have oc'ed my cpu to 3.00GHz.
Bios shows the oc as 3.0,02 GHz. But XP does'nt seem to "see" it. I can see that the performance have increased, as everthing is a bit snappier. And some better fps in games.
My consern, is if the non recognition of the oc, in XP have an negative effect in some way on the performance?
Also, a maybe silly question?
Does it matter to wich of the 2 x 6 pin PCI E power connectors my 8800GT is hooked up to on my Corsair psu?
I have it hooked up to PCI E 6 pin no.1 on the psu right now.
The Corsair have 3 x +12V rails =18A each. According to Nextsensor monitor program, the +12V is 11.840V under load. O.k. Voltage?
I have runned Memtest and Prime95 without any errors.
All psu rails are stable. _________________ Psu: Corsair HX 620W. Case: Antec P 180B. Noctua 2 x 120mm 900 rpm. Mobo: Gigabyte DS 4 - P35. Cpu : E6400 @ 2.8Ghz. Cpu cooler: Scythe Ninja Plus. Noctua 120mm.640 rpm. RAM: Cellshock V2 CL 4. DDR 800 2 gig. Video cards: Sapphire HD 4870 Crossfire. Hdd's: 2 x Raptor SATA 74 Gig. Sound card: Auzentech X-Fi Prelude 7.1 Speakers: Camebridge Desktop Theatre 5.1 Mouse: Logitech G 7 Keyboard: Logitech G 11 Monitor Viewsonic Q20WB 20" OS: XP Pro 32. SP 3.
My machine at home does the same. It's oc'd to 3.2 ghz, but XP still shows it as 2.6.
This would be due to what is burned to the CPU in manufacturing at Intel or AMD. Think of it like a information placard on a car. You could replace everything in the car, but the data plate still says what it was originally. XP is only looking at that "info plate" not what the CPU is actually doing. Try out everest or another type of program that could show you the processors current speed. It will reflect what the BIOS told you.
As for your 12v rails. That deviation is in the acceptable range. You wont find a "perfect" PSU that delivers constant voltage all the time. There will always be some difference in voltages, because of types of material used, the way things are setup and so on.
My rule of thumb is as long as its +-.70 or so its good. Check with your manufacturer of the PSU to see what it deems as acceptable range for its voltages. That will give you an idea of what is normal, or not. _________________ This song is my enemy, watch how I become it
IRAQ SFF Shuttle SX38-P2 Prima
Processor: Intel E8500 @ 3.16Ghz Chipset: Intel® X38 + ICH9R Memory: 6Gb XMS2 DHX (DC) @ 800Mhz
I finally decided to reinstall XP. Have'nt done that for a while. Anyway, this whas pretty soon a thing I would have had to do anyway. Now the 3.0GHz oc shows up. And at least Windows, flies like a rocket now.
Hope I will see the same performance in the games? After installing like 92 Windows updates and tons of other stuff lol.
But I will contact Corsair, and see what they have to say about the +12V rails?
Thanks again! _________________ Psu: Corsair HX 620W. Case: Antec P 180B. Noctua 2 x 120mm 900 rpm. Mobo: Gigabyte DS 4 - P35. Cpu : E6400 @ 2.8Ghz. Cpu cooler: Scythe Ninja Plus. Noctua 120mm.640 rpm. RAM: Cellshock V2 CL 4. DDR 800 2 gig. Video cards: Sapphire HD 4870 Crossfire. Hdd's: 2 x Raptor SATA 74 Gig. Sound card: Auzentech X-Fi Prelude 7.1 Speakers: Camebridge Desktop Theatre 5.1 Mouse: Logitech G 7 Keyboard: Logitech G 11 Monitor Viewsonic Q20WB 20" OS: XP Pro 32. SP 3.
To be honest I wouldn't trust any software to monitor voltages properly. For instance according to CPUZ my 6400 is running at 1.392v, not 1.42v.
It could be you're getting a bad reading on your psu. The main thing is that the voltage isn't fluctuating. You could try your other pcie connector with your gt, but it really depends how many physical 12v rails are in the psu. Most only actually have 1 or at best 2 physical rails, and they're just split however many ways (usually by limiting the amperage of each virtual rail). That's why I went for my corasir 750 - it's a single rail so there's no problem with rails being restricted to x amps... _________________ CPU: i7 860 @ 3.8ghz (Corsair H100/Noiseblocker M12-P)
Mobo: Gigabyte GA-P55A-UD5
Memory: 8GB Corsair XMS3 C8 @ 1730
Graphics: GTX 680
Monitor: Dell U2311H
Sound: Xonar Essence STX
Speakers: Bose Companion 20
Headphones: Sennheiser HD-598
Storage: Samsung 830 128GB, Corsair Performance Pro 256GB, Seagate ST1000DM003 1TB
Optical: LG bluray writer
PSU: Corsair TX 750W
Case: Corsair 550D
Cooling: 2x 124mm Zaward Golf III, 2x 120mm Akasa Apaches
OS: Windows 7 x64 SP1
Well, when I look in bios, I have 11.90 on the +12v ,so you could be right. I think I'll try the other connector later on, and see if it makes any difference? I have 3 x +12V at 18Amps btw. And all rails where stable when I did run Prime 95 yesterday.
EDIT:
I tried the other 6 pin PCI line on the Corsair psu. It matches what bios said about the other one. 11.90V. _________________ Psu: Corsair HX 620W. Case: Antec P 180B. Noctua 2 x 120mm 900 rpm. Mobo: Gigabyte DS 4 - P35. Cpu : E6400 @ 2.8Ghz. Cpu cooler: Scythe Ninja Plus. Noctua 120mm.640 rpm. RAM: Cellshock V2 CL 4. DDR 800 2 gig. Video cards: Sapphire HD 4870 Crossfire. Hdd's: 2 x Raptor SATA 74 Gig. Sound card: Auzentech X-Fi Prelude 7.1 Speakers: Camebridge Desktop Theatre 5.1 Mouse: Logitech G 7 Keyboard: Logitech G 11 Monitor Viewsonic Q20WB 20" OS: XP Pro 32. SP 3.
In that case it could well be a single 12v rail split 3 ways. Bear in mind you won't actually have 18a on each rail - each rail will have a maximum of 18a, so whichever one needs 18a first gets it, and the rest is split between the other rails. Allegedly this is the advantage of a single rail psu. _________________ CPU: i7 860 @ 3.8ghz (Corsair H100/Noiseblocker M12-P)
Mobo: Gigabyte GA-P55A-UD5
Memory: 8GB Corsair XMS3 C8 @ 1730
Graphics: GTX 680
Monitor: Dell U2311H
Sound: Xonar Essence STX
Speakers: Bose Companion 20
Headphones: Sennheiser HD-598
Storage: Samsung 830 128GB, Corsair Performance Pro 256GB, Seagate ST1000DM003 1TB
Optical: LG bluray writer
PSU: Corsair TX 750W
Case: Corsair 550D
Cooling: 2x 124mm Zaward Golf III, 2x 120mm Akasa Apaches
OS: Windows 7 x64 SP1
But I have mailed Corsair's customer service. So it will be interesting too see what they say after the weekend? _________________ Psu: Corsair HX 620W. Case: Antec P 180B. Noctua 2 x 120mm 900 rpm. Mobo: Gigabyte DS 4 - P35. Cpu : E6400 @ 2.8Ghz. Cpu cooler: Scythe Ninja Plus. Noctua 120mm.640 rpm. RAM: Cellshock V2 CL 4. DDR 800 2 gig. Video cards: Sapphire HD 4870 Crossfire. Hdd's: 2 x Raptor SATA 74 Gig. Sound card: Auzentech X-Fi Prelude 7.1 Speakers: Camebridge Desktop Theatre 5.1 Mouse: Logitech G 7 Keyboard: Logitech G 11 Monitor Viewsonic Q20WB 20" OS: XP Pro 32. SP 3.
Yeah, but luckily so far, I have'nt seen any fluctations. I keep my fingers crossed that the psu will stay that way for quite some time. But the day the rails starts to go rollercoasting on me, I'll go for the same psu as you got with a single +12V rail. _________________ Psu: Corsair HX 620W. Case: Antec P 180B. Noctua 2 x 120mm 900 rpm. Mobo: Gigabyte DS 4 - P35. Cpu : E6400 @ 2.8Ghz. Cpu cooler: Scythe Ninja Plus. Noctua 120mm.640 rpm. RAM: Cellshock V2 CL 4. DDR 800 2 gig. Video cards: Sapphire HD 4870 Crossfire. Hdd's: 2 x Raptor SATA 74 Gig. Sound card: Auzentech X-Fi Prelude 7.1 Speakers: Camebridge Desktop Theatre 5.1 Mouse: Logitech G 7 Keyboard: Logitech G 11 Monitor Viewsonic Q20WB 20" OS: XP Pro 32. SP 3.
I'd be pretty worried if a PSU like yours was fluctuating, to be honest. Corsair's still a great brand so you should be very safe in that regard at least. _________________ CPU: i7 860 @ 3.8ghz (Corsair H100/Noiseblocker M12-P)
Mobo: Gigabyte GA-P55A-UD5
Memory: 8GB Corsair XMS3 C8 @ 1730
Graphics: GTX 680
Monitor: Dell U2311H
Sound: Xonar Essence STX
Speakers: Bose Companion 20
Headphones: Sennheiser HD-598
Storage: Samsung 830 128GB, Corsair Performance Pro 256GB, Seagate ST1000DM003 1TB
Optical: LG bluray writer
PSU: Corsair TX 750W
Case: Corsair 550D
Cooling: 2x 124mm Zaward Golf III, 2x 120mm Akasa Apaches
OS: Windows 7 x64 SP1
I think your getting way too excited over something that is a "could happen". PSU are one of the most robust components of a modern computer. The only time one would get concerned is if the power was going on and off constantly. _________________ This song is my enemy, watch how I become it
IRAQ SFF Shuttle SX38-P2 Prima
Processor: Intel E8500 @ 3.16Ghz Chipset: Intel® X38 + ICH9R Memory: 6Gb XMS2 DHX (DC) @ 800Mhz
But when I saw that Voltage drop, when swapping from the 7950GT. I got slightly paranoied lol. _________________ Psu: Corsair HX 620W. Case: Antec P 180B. Noctua 2 x 120mm 900 rpm. Mobo: Gigabyte DS 4 - P35. Cpu : E6400 @ 2.8Ghz. Cpu cooler: Scythe Ninja Plus. Noctua 120mm.640 rpm. RAM: Cellshock V2 CL 4. DDR 800 2 gig. Video cards: Sapphire HD 4870 Crossfire. Hdd's: 2 x Raptor SATA 74 Gig. Sound card: Auzentech X-Fi Prelude 7.1 Speakers: Camebridge Desktop Theatre 5.1 Mouse: Logitech G 7 Keyboard: Logitech G 11 Monitor Viewsonic Q20WB 20" OS: XP Pro 32. SP 3.
My machine at home does the same. It's oc'd to 3.2 ghz, but XP still shows it as 2.6.
This would be due to what is burned to the CPU in manufacturing at Intel or AMD. Think of it like a information placard on a car. You could replace everything in the car, but the data plate still says what it was originally. XP is only looking at that "info plate" not what the CPU is actually doing. Try out everest or another type of program that could show you the processors current speed. It will reflect what the BIOS told you.
As for your 12v rails. That deviation is in the acceptable range. You wont find a "perfect" PSU that delivers constant voltage all the time. There will always be some difference in voltages, because of types of material used, the way things are setup and so on.
My rule of thumb is as long as its +-.70 or so its good. Check with your manufacturer of the PSU to see what it deems as acceptable range for its voltages. That will give you an idea of what is normal, or not.
Actually, the reason you're seeing 2.6 Ghz when it's at 3.2 Ghz is because of Intel Speedstep technology. Try putting it at load and checking your frequency.
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